------------[ cut here ]------------
======================================================
WARNING: possible circular locking dependency detected
6.0.0-rc6-next-20220920 #1 Not tainted
------------------------------------------------------
syz-executor.0/4105 is trying to acquire lock:
ffffffff853faab8 ((console_sem).lock){....}-{2:2}, at: down_trylock+0xe/0x70

but task is already holding lock:
ffff88800e6fc820 (&ctx->lock){....}-{2:2}, at: __perf_event_task_sched_out+0x53b/0x18d0

which lock already depends on the new lock.


the existing dependency chain (in reverse order) is:

-> #3 (&ctx->lock){....}-{2:2}:
       _raw_spin_lock+0x2a/0x40
       __perf_event_task_sched_out+0x53b/0x18d0
       __schedule+0xedd/0x2470
       preempt_schedule_common+0x45/0xc0
       __cond_resched+0x17/0x30
       __mutex_lock+0xa3/0x14d0
       __do_sys_perf_event_open+0x1eec/0x32c0
       do_syscall_64+0x3b/0x90
       entry_SYSCALL_64_after_hwframe+0x63/0xcd

-> #2 (&rq->__lock){-.-.}-{2:2}:
       _raw_spin_lock_nested+0x30/0x40
       raw_spin_rq_lock_nested+0x1e/0x30
       task_fork_fair+0x63/0x4d0
       sched_cgroup_fork+0x3d0/0x540
       copy_process+0x4183/0x6e20
       kernel_clone+0xe7/0x890
       user_mode_thread+0xad/0xf0
       rest_init+0x24/0x250
       arch_call_rest_init+0xf/0x14
       start_kernel+0x4c1/0x4e6
       secondary_startup_64_no_verify+0xe0/0xeb

-> #1 (&p->pi_lock){-.-.}-{2:2}:
       _raw_spin_lock_irqsave+0x39/0x60
       try_to_wake_up+0xab/0x1930
       up+0x75/0xb0
       __up_console_sem+0x6e/0x80
       console_unlock+0x46a/0x590
       do_con_write+0xc05/0x1d50
       con_write+0x21/0x40
       n_tty_write+0x4d4/0xfe0
       file_tty_write.constprop.0+0x49c/0x8f0
       vfs_write+0x9c3/0xd90
       ksys_write+0x127/0x250
       do_syscall_64+0x3b/0x90
       entry_SYSCALL_64_after_hwframe+0x63/0xcd

-> #0 ((console_sem).lock){....}-{2:2}:
       __lock_acquire+0x2a02/0x5e70
       lock_acquire+0x1a2/0x530
       _raw_spin_lock_irqsave+0x39/0x60
       down_trylock+0xe/0x70
       __down_trylock_console_sem+0x3b/0xd0
       vprintk_emit+0x16b/0x560
       vprintk+0x84/0xa0
       _printk+0xba/0xf1
       report_bug.cold+0x72/0xab
       handle_bug+0x3c/0x70
       exc_invalid_op+0x14/0x50
       asm_exc_invalid_op+0x16/0x20
       group_sched_out.part.0+0x2c7/0x460
       ctx_sched_out+0x8f1/0xc10
       __perf_event_task_sched_out+0x6d0/0x18d0
       __schedule+0xedd/0x2470
       preempt_schedule_common+0x45/0xc0
       __cond_resched+0x17/0x30
       __mutex_lock+0xa3/0x14d0
       __do_sys_perf_event_open+0x1eec/0x32c0
       do_syscall_64+0x3b/0x90
       entry_SYSCALL_64_after_hwframe+0x63/0xcd

other info that might help us debug this:

Chain exists of:
  (console_sem).lock --> &rq->__lock --> &ctx->lock

 Possible unsafe locking scenario:

       CPU0                    CPU1
       ----                    ----
  lock(&ctx->lock);
                               lock(&rq->__lock);
                               lock(&ctx->lock);
  lock((console_sem).lock);

 *** DEADLOCK ***

2 locks held by syz-executor.0/4105:
 #0: ffff88806ce37d18 (&rq->__lock){-.-.}-{2:2}, at: __schedule+0x1cf/0x2470
 #1: ffff88800e6fc820 (&ctx->lock){....}-{2:2}, at: __perf_event_task_sched_out+0x53b/0x18d0

stack backtrace:
CPU: 0 PID: 4105 Comm: syz-executor.0 Not tainted 6.0.0-rc6-next-20220920 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0x8b/0xb3
 check_noncircular+0x263/0x2e0
 __lock_acquire+0x2a02/0x5e70
 lock_acquire+0x1a2/0x530
 _raw_spin_lock_irqsave+0x39/0x60
 down_trylock+0xe/0x70
 __down_trylock_console_sem+0x3b/0xd0
 vprintk_emit+0x16b/0x560
 vprintk+0x84/0xa0
 _printk+0xba/0xf1
 report_bug.cold+0x72/0xab
 handle_bug+0x3c/0x70
 exc_invalid_op+0x14/0x50
 asm_exc_invalid_op+0x16/0x20
RIP: 0010:group_sched_out.part.0+0x2c7/0x460
Code: 5e 41 5f e9 9b b9 ef ff e8 96 b9 ef ff 65 8b 1d 0b 13 ac 7e 31 ff 89 de e8 36 b6 ef ff 85 db 0f 84 8a 00 00 00 e8 79 b9 ef ff <0f> 0b e9 a5 fe ff ff e8 6d b9 ef ff 48 8d 7d 10 48 b8 00 00 00 00
RSP: 0018:ffff8880185df978 EFLAGS: 00010006
RAX: 0000000040000002 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffff888018380000 RSI: ffffffff815662c7 RDI: 0000000000000005
RBP: ffff888008669158 R08: 0000000000000005 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000001 R12: ffff88800e6fc800
R13: ffff88806ce3d140 R14: ffffffff8547c820 R15: 0000000000000002
 ctx_sched_out+0x8f1/0xc10
 __perf_event_task_sched_out+0x6d0/0x18d0
 __schedule+0xedd/0x2470
 preempt_schedule_common+0x45/0xc0
 __cond_resched+0x17/0x30
 __mutex_lock+0xa3/0x14d0
 __do_sys_perf_event_open+0x1eec/0x32c0
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f2119ce5b19
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f211725b188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007f2119df8f60 RCX: 00007f2119ce5b19
RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000000020000280
RBP: 00007f2119d3ff6d R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe06c0ec8f R14: 00007f211725b300 R15: 0000000000022000
 </TASK>
WARNING: CPU: 0 PID: 4105 at kernel/events/core.c:2309 group_sched_out.part.0+0x2c7/0x460
Modules linked in:
CPU: 0 PID: 4105 Comm: syz-executor.0 Not tainted 6.0.0-rc6-next-20220920 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
RIP: 0010:group_sched_out.part.0+0x2c7/0x460
Code: 5e 41 5f e9 9b b9 ef ff e8 96 b9 ef ff 65 8b 1d 0b 13 ac 7e 31 ff 89 de e8 36 b6 ef ff 85 db 0f 84 8a 00 00 00 e8 79 b9 ef ff <0f> 0b e9 a5 fe ff ff e8 6d b9 ef ff 48 8d 7d 10 48 b8 00 00 00 00
RSP: 0018:ffff8880185df978 EFLAGS: 00010006
RAX: 0000000040000002 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffff888018380000 RSI: ffffffff815662c7 RDI: 0000000000000005
RBP: ffff888008669158 R08: 0000000000000005 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000001 R12: ffff88800e6fc800
R13: ffff88806ce3d140 R14: ffffffff8547c820 R15: 0000000000000002
FS:  00007f211725b700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa6b954ff64 CR3: 000000003e9ea000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 ctx_sched_out+0x8f1/0xc10
 __perf_event_task_sched_out+0x6d0/0x18d0
 __schedule+0xedd/0x2470
 preempt_schedule_common+0x45/0xc0
 __cond_resched+0x17/0x30
 __mutex_lock+0xa3/0x14d0
 __do_sys_perf_event_open+0x1eec/0x32c0
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f2119ce5b19
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f211725b188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007f2119df8f60 RCX: 00007f2119ce5b19
RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000000020000280
RBP: 00007f2119d3ff6d R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe06c0ec8f R14: 00007f211725b300 R15: 0000000000022000
 </TASK>
irq event stamp: 208
hardirqs last  enabled at (207): [<ffffffff84400d06>] asm_sysvec_apic_timer_interrupt+0x16/0x20
hardirqs last disabled at (208): [<ffffffff8424c195>] __schedule+0x1225/0x2470
softirqs last  enabled at (198): [<ffffffff811709ab>] __irq_exit_rcu+0x11b/0x180
softirqs last disabled at (191): [<ffffffff811709ab>] __irq_exit_rcu+0x11b/0x180
---[ end trace 0000000000000000 ]---
loop3: detected capacity change from 0 to 1304
hrtimer: interrupt took 19036 ns
loop7: detected capacity change from 0 to 1352
loop1: detected capacity change from 0 to 352
loop3: detected capacity change from 0 to 5408
UDC core: USB Raw Gadget: couldn't find an available UDC or it's busy
misc raw-gadget: fail, usb_gadget_register_driver returned -16
UDC core: USB Raw Gadget: couldn't find an available UDC or it's busy
misc raw-gadget: fail, usb_gadget_register_driver returned -16
loop3: detected capacity change from 0 to 5408
UDC core: USB Raw Gadget: couldn't find an available UDC or it's busy
misc raw-gadget: fail, usb_gadget_register_driver returned -16
loop6: detected capacity change from 0 to 180
loop4: detected capacity change from 0 to 592
loop1: detected capacity change from 0 to 132
loop6: detected capacity change from 0 to 360
loop5: detected capacity change from 0 to 130
loop4: detected capacity change from 0 to 128
loop6: detected capacity change from 0 to 360
loop3: detected capacity change from 0 to 5408
loop1: detected capacity change from 0 to 368
loop4: detected capacity change from 0 to 136
loop6: detected capacity change from 0 to 360
loop5: detected capacity change from 0 to 130
loop1: detected capacity change from 0 to 608
loop4: detected capacity change from 0 to 184
loop5: detected capacity change from 0 to 130
loop3: detected capacity change from 0 to 5408
loop6: detected capacity change from 0 to 360
UDC core: USB Raw Gadget: couldn't find an available UDC or it's busy
misc raw-gadget: fail, usb_gadget_register_driver returned -16
loop4: detected capacity change from 0 to 1298
loop1: detected capacity change from 0 to 5152
loop6: detected capacity change from 0 to 1348
loop3: detected capacity change from 0 to 1300
loop5: detected capacity change from 0 to 130
loop1: detected capacity change from 0 to 128
loop4: detected capacity change from 0 to 5392
loop1: detected capacity change from 0 to 128
loop5: detected capacity change from 0 to 512
loop6: detected capacity change from 0 to 128
loop4: detected capacity change from 0 to 344
loop1: detected capacity change from 0 to 128
loop3: detected capacity change from 0 to 1300
EXT4-fs (loop5): mounted filesystem without journal. Quota mode: none.
EXT4-fs (loop5): unmounting filesystem.
loop2: detected capacity change from 0 to 128
loop7: detected capacity change from 0 to 132
loop6: detected capacity change from 0 to 344
loop1: detected capacity change from 0 to 592
loop5: detected capacity change from 0 to 352
loop4: detected capacity change from 0 to 180
loop2: detected capacity change from 0 to 1294
loop3: detected capacity change from 0 to 1300
loop7: detected capacity change from 0 to 1304
loop6: detected capacity change from 0 to 1352
loop5: detected capacity change from 0 to 5408
loop4: detected capacity change from 0 to 128
loop1: detected capacity change from 0 to 136
loop2: detected capacity change from 0 to 128
loop7: detected capacity change from 0 to 128
loop3: detected capacity change from 0 to 1300
loop6: detected capacity change from 0 to 368
loop5: detected capacity change from 0 to 130
loop4: detected capacity change from 0 to 184
loop2: detected capacity change from 0 to 1298
loop7: detected capacity change from 0 to 608
loop5: detected capacity change from 0 to 5168
loop2: detected capacity change from 0 to 128
loop7: detected capacity change from 0 to 128
loop4: detected capacity change from 0 to 1300
loop1: detected capacity change from 0 to 136
loop7: detected capacity change from 0 to 128
loop4: detected capacity change from 0 to 760
ISO 9660 Extensions: Microsoft Joliet Level 3
loop7: detected capacity change from 0 to 128
ISOFS: changing to secondary root
loop3: detected capacity change from 0 to 1300
loop1: detected capacity change from 0 to 3520
ISO 9660 Extensions: Microsoft Joliet Level 3
ISOFS: changing to secondary root
loop1: detected capacity change from 0 to 3520
loop4: detected capacity change from 0 to 764
loop7: detected capacity change from 0 to 128
FAULT_INJECTION: forcing a failure.
name fail_usercopy, interval 1, probability 0, space 0, times 1
ISO 9660 Extensions: Microsoft Joliet Level 3
CPU: 1 PID: 4325 Comm: syz-executor.3 Tainted: G        W          6.0.0-rc6-next-20220920 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0x8b/0xb3
 should_fail.cold+0x5/0xa
 _copy_from_user+0x2a/0x170
 __do_sys_memfd_create+0x103/0x4e0
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fa6b943cb19
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fa6b69b1f48 EFLAGS: 00000246 ORIG_RAX: 000000000000013f
RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 00007fa6b943cb19
RDX: 00000000000a2800 RSI: 0000000000000000 RDI: 00007fa6b94960fb
RBP: 0000000000000008 R08: 0000000000051400 R09: ffffffffffffffff
R10: 0000000000000008 R11: 0000000000000246 R12: 0000000008100000
R13: 0000000020000100 R14: 00000000000a2800 R15: 0000000020010d00
 </TASK>
ISO 9660 Extensions: Microsoft Joliet Level 3
ISOFS: changing to secondary root
loop0: detected capacity change from 0 to 312
loop5: detected capacity change from 0 to 128
ISO 9660 Extensions: RRIP_1991A
ISO 9660 Extensions: Microsoft Joliet Level 3
ISOFS: changing to secondary root
loop1: detected capacity change from 0 to 3520
ISO 9660 Extensions: Microsoft Joliet Level 3
ISOFS: changing to secondary root
loop5: detected capacity change from 0 to 128
loop4: detected capacity change from 0 to 1294
loop1: detected capacity change from 0 to 3520
loop5: detected capacity change from 0 to 1348
ISO 9660 Extensions: Microsoft Joliet Level 3
loop7: detected capacity change from 0 to 128
ISOFS: changing to secondary root
loop6: detected capacity change from 0 to 5392
loop2: detected capacity change from 0 to 128
loop0: detected capacity change from 0 to 5152
loop4: detected capacity change from 0 to 128
loop3: detected capacity change from 0 to 1300
loop2: detected capacity change from 0 to 2304
loop0: detected capacity change from 0 to 5152
loop4: detected capacity change from 0 to 2320
ISO 9660 Extensions: Microsoft Joliet Level 3
ISOFS: changing to secondary root
ISO 9660 Extensions: Microsoft Joliet Level 3
loop7: detected capacity change from 0 to 3520
ISO 9660 Extensions: RRIP_1991A
ISO 9660 Extensions: Microsoft Joliet Level 3
loop5: detected capacity change from 0 to 3528
ISO 9660 Extensions: RRIP_1991A
loop6: detected capacity change from 0 to 736
ISO 9660 Extensions: Microsoft Joliet Level 3
ISOFS: changing to secondary root
ISO 9660 Extensions: RRIP_1991A
loop1: detected capacity change from 0 to 2048
EXT4-fs (loop1): mounted filesystem without journal. Quota mode: writeback.
loop0: detected capacity change from 0 to 5152
loop3: detected capacity change from 0 to 1300
loop2: detected capacity change from 0 to 2048
EXT4-fs (loop1): unmounting filesystem.
loop4: detected capacity change from 0 to 3520
loop7: detected capacity change from 0 to 320
loop6: detected capacity change from 0 to 3520
ISO 9660 Extensions: Microsoft Joliet Level 3
ISO 9660 Extensions: Microsoft Joliet Level 3
ISO 9660 Extensions: RRIP_1991A
loop5: detected capacity change from 0 to 732
ISOFS: changing to secondary root
EXT4-fs (loop2): mounted filesystem without journal. Quota mode: writeback.
EXT4-fs (loop2): unmounting filesystem.
loop1: detected capacity change from 0 to 2048
EXT4-fs (loop1): mounted filesystem without journal. Quota mode: writeback.
EXT4-fs (loop1): unmounting filesystem.
loop2: detected capacity change from 0 to 2048
EXT4-fs (loop2): mounted filesystem without journal. Quota mode: writeback.
loop5: detected capacity change from 0 to 2560
loop7: detected capacity change from 0 to 320
loop0: detected capacity change from 0 to 5152
loop4: detected capacity change from 0 to 4096
loop6: detected capacity change from 0 to 4096
ISO 9660 Extensions: Microsoft Joliet Level 3
ISO 9660 Extensions: RRIP_1991A
EXT4-fs (loop5): mounted filesystem without journal. Quota mode: none.
ext4 filesystem being mounted at /syzkaller-testdir620285418/syzkaller.PQj3nf/30/file0 supports timestamps until 2038 (0x7fffffff)
EXT4-fs (loop4): mounted filesystem without journal. Quota mode: writeback.
EXT4-fs (loop6): mounted filesystem without journal. Quota mode: writeback.
loop1: detected capacity change from 0 to 2048
EXT4-fs (loop5): unmounting filesystem.
EXT4-fs (loop2): unmounting filesystem.
EXT4-fs (loop1): mounted filesystem without journal. Quota mode: writeback.
EXT4-fs (loop6): unmounting filesystem.
EXT4-fs (loop4): unmounting filesystem.
loop3: detected capacity change from 0 to 1300
loop5: detected capacity change from 0 to 2560
loop6: detected capacity change from 0 to 4096
loop2: detected capacity change from 0 to 2048
loop7: detected capacity change from 0 to 320
ISO 9660 Extensions: Microsoft Joliet Level 3
ISO 9660 Extensions: RRIP_1991A
EXT4-fs (loop2): mounted filesystem without journal. Quota mode: writeback.
EXT4-fs (loop6): mounted filesystem without journal. Quota mode: writeback.
loop4: detected capacity change from 0 to 4096
loop0: detected capacity change from 0 to 512
EXT4-fs (loop5): mounted filesystem without journal. Quota mode: none.
ext4 filesystem being mounted at /syzkaller-testdir620285418/syzkaller.PQj3nf/31/file0 supports timestamps until 2038 (0x7fffffff)
EXT4-fs (loop2): unmounting filesystem.
EXT4-fs (loop5): unmounting filesystem.
EXT4-fs (loop0): mounted filesystem without journal. Quota mode: none.
EXT4-fs (loop4): mounted filesystem without journal. Quota mode: writeback.
EXT4-fs (loop1): unmounting filesystem.
EXT4-fs (loop0): unmounting filesystem.
EXT4-fs (loop4): unmounting filesystem.
EXT4-fs (loop6): unmounting filesystem.
loop1: detected capacity change from 0 to 2048
loop2: detected capacity change from 0 to 2048
loop0: detected capacity change from 0 to 512
loop5: detected capacity change from 0 to 2560
EXT4-fs (loop1): mounted filesystem without journal. Quota mode: writeback.
loop7: detected capacity change from 0 to 320
ISO 9660 Extensions: Microsoft Joliet Level 3
ISO 9660 Extensions: RRIP_1991A
EXT4-fs (loop0): mounted filesystem without journal. Quota mode: none.
EXT4-fs (loop2): mounted filesystem without journal. Quota mode: writeback.
EXT4-fs (loop1): unmounting filesystem.
loop6: detected capacity change from 0 to 4096
EXT4-fs (loop5): mounted filesystem without journal. Quota mode: none.
ext4 filesystem being mounted at /syzkaller-testdir620285418/syzkaller.PQj3nf/32/file0 supports timestamps until 2038 (0x7fffffff)
EXT4-fs (loop6): mounted filesystem without journal. Quota mode: writeback.
EXT4-fs (loop0): unmounting filesystem.
EXT4-fs (loop2): unmounting filesystem.
EXT4-fs (loop5): unmounting filesystem.
EXT4-fs (loop6): unmounting filesystem.
loop0: detected capacity change from 0 to 512
EXT4-fs (loop0): mounted filesystem without journal. Quota mode: none.
loop6: detected capacity change from 0 to 4096
loop1: detected capacity change from 0 to 4096
loop3: detected capacity change from 0 to 1300
loop4: detected capacity change from 0 to 4096
loop5: detected capacity change from 0 to 2560
EXT4-fs (loop6): mounted filesystem without journal. Quota mode: writeback.
EXT4-fs (loop0): unmounting filesystem.
EXT4-fs (loop4): mounted filesystem without journal. Quota mode: writeback.
EXT4-fs (loop5): mounted filesystem without journal. Quota mode: none.
ext4 filesystem being mounted at /syzkaller-testdir620285418/syzkaller.PQj3nf/33/file0 supports timestamps until 2038 (0x7fffffff)
EXT4-fs (loop1): mounted filesystem without journal. Quota mode: none.
EXT4-fs (loop5): unmounting filesystem.
EXT4-fs (loop6): unmounting filesystem.
loop0: detected capacity change from 0 to 512
EXT4-fs (loop4): unmounting filesystem.
EXT4-fs (loop1): unmounting filesystem.
EXT4-fs (loop0): mounted filesystem without journal. Quota mode: none.
loop4: detected capacity change from 0 to 4096
loop1: detected capacity change from 0 to 4096
EXT4-fs (loop0): unmounting filesystem.
EXT4-fs (loop4): mounted filesystem without journal. Quota mode: writeback.
EXT4-fs (loop1): mounted filesystem without journal. Quota mode: none.
EXT4-fs (loop4): unmounting filesystem.
EXT4-fs (loop1): unmounting filesystem.
loop3: detected capacity change from 0 to 1300
loop7: detected capacity change from 0 to 512
loop1: detected capacity change from 0 to 4096
EXT4-fs (loop7): mounted filesystem without journal. Quota mode: none.
EXT4-fs (loop1): mounted filesystem without journal. Quota mode: none.
EXT4-fs (loop7): unmounting filesystem.
EXT4-fs (loop1): unmounting filesystem.
loop3: detected capacity change from 0 to 1300
FAT-fs (loop3): bogus number of reserved sectors
FAT-fs (loop3): Can't find a valid FAT filesystem
loop1: detected capacity change from 0 to 4096
loop7: detected capacity change from 0 to 512
loop2: detected capacity change from 0 to 512
ext4 filesystem being mounted at /syzkaller-testdir759617903/syzkaller.4d06d0/23/file0 supports timestamps until 2038 (0x7fffffff)
FAULT_INJECTION: forcing a failure.
name fail_usercopy, interval 1, probability 0, space 0, times 0
CPU: 1 PID: 4510 Comm: syz-executor.3 Tainted: G        W          6.0.0-rc6-next-20220920 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0x8b/0xb3
 should_fail.cold+0x5/0xa
 copyin+0x19/0x120
 copy_page_from_iter_atomic+0x249/0x1290
loop7: detected capacity change from 0 to 512
 generic_perform_write+0x2cb/0x580
 __generic_file_write_iter+0x2da/0x480
 generic_file_write_iter+0xe3/0x350
 vfs_write+0x9c3/0xd90
 __x64_sys_pwrite64+0x1fb/0x260
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fa6b93efab7
Code: 08 89 3c 24 48 89 4c 24 18 e8 e5 f8 ff ff 4c 8b 54 24 18 48 8b 54 24 10 41 89 c0 48 8b 74 24 08 8b 3c 24 b8 12 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 04 24 e8 15 f9 ff ff 48 8b
RSP: 002b:00007fa6b69b1f20 EFLAGS: 00000293 ORIG_RAX: 0000000000000012
RAX: ffffffffffffffda RBX: 00007fa6b9486970 RCX: 00007fa6b93efab7
RDX: 00000000000000c0 RSI: 0000000020010000 RDI: 0000000000000004
RBP: 0000000000000008 R08: 0000000000000000 R09: ffffffffffffffff
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000004
R13: 0000000000000004 R14: 0000000020000200 R15: 0000000000000000
 </TASK>
loop3: detected capacity change from 0 to 1300
loop2: detected capacity change from 0 to 3504
ISO 9660 Extensions: Microsoft Joliet Level 3
ISOFS: changing to secondary root
loop7: detected capacity change from 0 to 512
loop2: detected capacity change from 0 to 4728
ISO 9660 Extensions: Microsoft Joliet Level 3
ISOFS: changing to secondary root
FAULT_INJECTION: forcing a failure.
name fail_usercopy, interval 1, probability 0, space 0, times 0
CPU: 0 PID: 4522 Comm: syz-executor.3 Tainted: G        W          6.0.0-rc6-next-20220920 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0x8b/0xb3
 should_fail.cold+0x5/0xa
 copyin+0x19/0x120
 copy_page_from_iter_atomic+0x249/0x1290
 generic_perform_write+0x2cb/0x580
 __generic_file_write_iter+0x2da/0x480
 generic_file_write_iter+0xe3/0x350
 vfs_write+0x9c3/0xd90
 __x64_sys_pwrite64+0x1fb/0x260
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fa6b93efab7
Code: 08 89 3c 24 48 89 4c 24 18 e8 e5 f8 ff ff 4c 8b 54 24 18 48 8b 54 24 10 41 89 c0 48 8b 74 24 08 8b 3c 24 b8 12 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 04 24 e8 15 f9 ff ff 48 8b
RSP: 002b:00007fa6b69b1f20 EFLAGS: 00000293 ORIG_RAX: 0000000000000012
RAX: ffffffffffffffda RBX: 00007fa6b9486970 RCX: 00007fa6b93efab7
RDX: 0000000000000040 RSI: 0000000020010100 RDI: 0000000000000004
RBP: 0000000000000008 R08: 0000000000000000 R09: ffffffffffffffff
R10: 00000000000001e0 R11: 0000000000000293 R12: 0000000000000004
R13: 0000000000000004 R14: 0000000020000218 R15: 0000000000000001
 </TASK>
loop3: detected capacity change from 0 to 1300
loop7: detected capacity change from 0 to 512
loop5: detected capacity change from 0 to 3520
loop2: detected capacity change from 0 to 256
FAULT_INJECTION: forcing a failure.
name fail_usercopy, interval 1, probability 0, space 0, times 0
CPU: 0 PID: 4531 Comm: syz-executor.3 Tainted: G        W          6.0.0-rc6-next-20220920 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0x8b/0xb3
 should_fail.cold+0x5/0xa
loop5: detected capacity change from 0 to 264
 copyin+0x19/0x120
 copy_page_from_iter_atomic+0x249/0x1290
 generic_perform_write+0x2cb/0x580
 __generic_file_write_iter+0x2da/0x480
 generic_file_write_iter+0xe3/0x350
 vfs_write+0x9c3/0xd90
 __x64_sys_pwrite64+0x1fb/0x260
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fa6b93efab7
Code: 08 89 3c 24 48 89 4c 24 18 e8 e5 f8 ff ff 4c 8b 54 24 18 48 8b 54 24 10 41 89 c0 48 8b 74 24 08 8b 3c 24 b8 12 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 04 24 e8 15 f9 ff ff 48 8b
RSP: 002b:00007fa6b69b1f20 EFLAGS: 00000293 ORIG_RAX: 0000000000000012
RAX: ffffffffffffffda RBX: 00007fa6b9486970 RCX: 00007fa6b93efab7
RDX: 0000000000000020 RSI: 0000000020010200 RDI: 0000000000000004
RBP: 0000000000000008 R08: 0000000000000000 R09: ffffffffffffffff
R10: 0000000000000400 R11: 0000000000000293 R12: 0000000000000004
R13: 0000000000000004 R14: 0000000020000230 R15: 0000000000000002
 </TASK>
ISO 9660 Extensions: RRIP_1991A
loop3: detected capacity change from 0 to 1300
loop0: detected capacity change from 0 to 360
loop2: detected capacity change from 0 to 128
FAULT_INJECTION: forcing a failure.
name fail_usercopy, interval 1, probability 0, space 0, times 0
CPU: 1 PID: 4543 Comm: syz-executor.3 Tainted: G        W          6.0.0-rc6-next-20220920 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0x8b/0xb3
 should_fail.cold+0x5/0xa
 copyin+0x19/0x120
 copy_page_from_iter_atomic+0x249/0x1290
 generic_perform_write+0x2cb/0x580
 __generic_file_write_iter+0x2da/0x480
 generic_file_write_iter+0xe3/0x350
 vfs_write+0x9c3/0xd90
 __x64_sys_pwrite64+0x1fb/0x260
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fa6b93efab7
Code: 08 89 3c 24 48 89 4c 24 18 e8 e5 f8 ff ff 4c 8b 54 24 18 48 8b 54 24 10 41 89 c0 48 8b 74 24 08 8b 3c 24 b8 12 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 04 24 e8 15 f9 ff ff 48 8b
RSP: 002b:00007fa6b69b1f20 EFLAGS: 00000293 ORIG_RAX: 0000000000000012
RAX: ffffffffffffffda RBX: 00007fa6b9486970 RCX: 00007fa6b93efab7
RDX: 0000000000000120 RSI: 0000000020010300 RDI: 0000000000000004
RBP: 0000000000000008 R08: 0000000000000000 R09: ffffffffffffffff
R10: 0000000000000600 R11: 0000000000000293 R12: 0000000000000004
R13: 0000000000000004 R14: 0000000020000248 R15: 0000000000000003
 </TASK>
loop3: detected capacity change from 0 to 1300
loop5: detected capacity change from 0 to 512
loop3: detected capacity change from 0 to 1300
loop6: detected capacity change from 0 to 4096
loop4: detected capacity change from 0 to 512
loop3: detected capacity change from 0 to 1300
loop2: detected capacity change from 0 to 2048
loop3: detected capacity change from 0 to 1300
loop0: detected capacity change from 0 to 2560
FAULT_INJECTION: forcing a failure.
name fail_usercopy, interval 1, probability 0, space 0, times 0
CPU: 0 PID: 4571 Comm: syz-executor.6 Tainted: G        W          6.0.0-rc6-next-20220920 #1
ext4 filesystem being mounted at /syzkaller-testdir930363313/syzkaller.ShxvvE/32/file0 supports timestamps until 2038 (0x7fffffff)
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0x8b/0xb3
 should_fail.cold+0x5/0xa
 _copy_from_user+0x2a/0x170
 __do_sys_memfd_create+0x103/0x4e0
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fb61aeeeb19
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fb618463f48 EFLAGS: 00000246 ORIG_RAX: 000000000000013f
RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 00007fb61aeeeb19
RDX: 0000000000120000 RSI: 0000000000000000 RDI: 00007fb61af480fb
RBP: 0000000000000028 R08: 0000000000090000 R09: ffffffffffffffff
R10: 0000000000000028 R11: 0000000000000246 R12: 0000000008100000
R13: 0000000020000100 R14: 0000000000200000 R15: 0000000020014d00
 </TASK>
FAULT_INJECTION: forcing a failure.
name fail_usercopy, interval 1, probability 0, space 0, times 0
CPU: 1 PID: 4575 Comm: syz-executor.5 Tainted: G        W          6.0.0-rc6-next-20220920 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
Call Trace:
FAULT_INJECTION: forcing a failure.
name fail_usercopy, interval 1, probability 0, space 0, times 0
 <TASK>
 dump_stack_lvl+0x8b/0xb3
 should_fail.cold+0x5/0xa
 _copy_from_user+0x2a/0x170
 __do_sys_memfd_create+0x103/0x4e0
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f4a29906b19
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f4a26e7bf48 EFLAGS: 00000246 ORIG_RAX: 000000000000013f
RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 00007f4a29906b19
RDX: 0000000000010800 RSI: 0000000000000000 RDI: 00007f4a299600fb
RBP: 000000000000001d R08: 0000000000008400 R09: ffffffffffffffff
R10: 000000000000001d R11: 0000000000000246 R12: 0000000008100000
R13: 0000000020000100 R14: 0000000000040000 R15: 0000000020012900
 </TASK>
CPU: 0 PID: 4576 Comm: syz-executor.2 Tainted: G        W          6.0.0-rc6-next-20220920 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
loop4: detected capacity change from 0 to 512
Call Trace:
 <TASK>
 dump_stack_lvl+0x8b/0xb3
 should_fail.cold+0x5/0xa
 _copy_from_user+0x2a/0x170
 __do_sys_memfd_create+0x103/0x4e0
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fd93d2adb19
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fd93a822f48 EFLAGS: 00000246 ORIG_RAX: 000000000000013f
RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 00007fd93d2adb19
RDX: 0000000000060000 RSI: 0000000000000000 RDI: 00007fd93d3070fb
RBP: 000000000000002a R08: 0000000000030000 R09: ffffffffffffffff
R10: 000000000000002a R11: 0000000000000246 R12: 0000000008100000
R13: 0000000020000100 R14: 0000000000100000 R15: 0000000020013e00
 </TASK>
loop7: detected capacity change from 0 to 512
ext4 filesystem being mounted at /syzkaller-testdir269072829/syzkaller.9Iw8Ud/28/file0 supports timestamps until 2038 (0x7fffffff)
FAULT_INJECTION: forcing a failure.
name fail_usercopy, interval 1, probability 0, space 0, times 0
CPU: 1 PID: 4587 Comm: syz-executor.0 Tainted: G        W          6.0.0-rc6-next-20220920 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0x8b/0xb3
 should_fail.cold+0x5/0xa
 _copy_from_user+0x2a/0x170
 __do_sys_memfd_create+0x103/0x4e0
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f2119ce5b19
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f211725af48 EFLAGS: 00000246 ORIG_RAX: 000000000000013f
RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 00007f2119ce5b19
RDX: 0000000000140000 RSI: 0000000000000000 RDI: 00007f2119d3f0fb
RBP: 0000000000000015 R08: 00000000000a0000 R09: ffffffffffffffff
R10: 0000000000000015 R11: 0000000000000246 R12: 0000000008100000
R13: 0000000020000100 R14: 0000000000140000 R15: 0000000020013b00
 </TASK>
loop1: detected capacity change from 0 to 512
FAULT_INJECTION: forcing a failure.
name fail_usercopy, interval 1, probability 0, space 0, times 0
CPU: 1 PID: 4593 Comm: syz-executor.3 Tainted: G        W          6.0.0-rc6-next-20220920 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0x8b/0xb3
 should_fail.cold+0x5/0xa
 copyin+0x19/0x120
 copy_page_from_iter_atomic+0x249/0x1290
 generic_perform_write+0x2cb/0x580
 __generic_file_write_iter+0x2da/0x480
 generic_file_write_iter+0xe3/0x350
 vfs_write+0x9c3/0xd90
 __x64_sys_pwrite64+0x1fb/0x260
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fa6b93efab7
Code: 08 89 3c 24 48 89 4c 24 18 e8 e5 f8 ff ff 4c 8b 54 24 18 48 8b 54 24 10 41 89 c0 48 8b 74 24 08 8b 3c 24 b8 12 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 04 24 e8 15 f9 ff ff 48 8b
RSP: 002b:00007fa6b69b1f20 EFLAGS: 00000293 ORIG_RAX: 0000000000000012
RAX: ffffffffffffffda RBX: 00007fa6b9486970 RCX: 00007fa6b93efab7
RDX: 0000000000000080 RSI: 0000000020010500 RDI: 0000000000000004
RBP: 0000000000000008 R08: 0000000000000000 R09: ffffffffffffffff
R10: 0000000000011400 R11: 0000000000000293 R12: 0000000000000004
R13: 0000000000000004 R14: 0000000020000260 R15: 0000000000000004
 </TASK>
ext4 filesystem being mounted at /syzkaller-testdir864852741/syzkaller.CIrR0q/34/file0 supports timestamps until 2038 (0x7fffffff)
loop3: detected capacity change from 0 to 1300
loop5: detected capacity change from 0 to 512
loop4: detected capacity change from 0 to 1024
loop2: detected capacity change from 0 to 2048
loop6: detected capacity change from 0 to 4096
loop1: detected capacity change from 0 to 1024
loop7: detected capacity change from 0 to 1024
ext4 filesystem being mounted at /syzkaller-testdir864852741/syzkaller.CIrR0q/35/file0 supports timestamps until 2038 (0x7fffffff)
loop3: detected capacity change from 0 to 1300
loop4: detected capacity change from 0 to 1024
loop2: detected capacity change from 0 to 2048
loop0: detected capacity change from 0 to 2560
loop5: detected capacity change from 0 to 512
loop4: detected capacity change from 0 to 1024
FAULT_INJECTION: forcing a failure.
name fail_usercopy, interval 1, probability 0, space 0, times 0
CPU: 1 PID: 4647 Comm: syz-executor.3 Tainted: G        W          6.0.0-rc6-next-20220920 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0x8b/0xb3
 should_fail.cold+0x5/0xa
 copyin+0x19/0x120
 copy_page_from_iter_atomic+0x249/0x1290
 generic_perform_write+0x2cb/0x580
 __generic_file_write_iter+0x2da/0x480
 generic_file_write_iter+0xe3/0x350
 vfs_write+0x9c3/0xd90
 __x64_sys_pwrite64+0x1fb/0x260
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fa6b93efab7
Code: 08 89 3c 24 48 89 4c 24 18 e8 e5 f8 ff ff 4c 8b 54 24 18 48 8b 54 24 10 41 89 c0 48 8b 74 24 08 8b 3c 24 b8 12 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 04 24 e8 15 f9 ff ff 48 8b
RSP: 002b:00007fa6b69b1f20 EFLAGS: 00000293 ORIG_RAX: 0000000000000012
RAX: ffffffffffffffda RBX: 00007fa6b9486970 RCX: 00007fa6b93efab7
RDX: 0000000000000420 RSI: 0000000020010600 RDI: 0000000000000004
RBP: 0000000000000008 R08: 0000000000000000 R09: ffffffffffffffff
R10: 0000000000021400 R11: 0000000000000293 R12: 0000000000000004
R13: 0000000000000004 R14: 0000000020000278 R15: 0000000000000005
 </TASK>
loop7: detected capacity change from 0 to 512
loop1: detected capacity change from 0 to 1024
ext4 filesystem being mounted at /syzkaller-testdir930363313/syzkaller.ShxvvE/35/file0 supports timestamps until 2038 (0x7fffffff)
loop3: detected capacity change from 0 to 1300
loop6: detected capacity change from 0 to 4096
loop5: detected capacity change from 0 to 512
loop1: detected capacity change from 0 to 1024
loop2: detected capacity change from 0 to 2048
loop7: detected capacity change from 0 to 640
loop4: detected capacity change from 0 to 1024
loop3: detected capacity change from 0 to 1300
ext4 filesystem being mounted at /syzkaller-testdir864852741/syzkaller.CIrR0q/37/file0 supports timestamps until 2038 (0x7fffffff)
loop1: detected capacity change from 0 to 1024
loop0: detected capacity change from 0 to 2560
loop6: detected capacity change from 0 to 4096
loop4: detected capacity change from 0 to 1024
FAULT_INJECTION: forcing a failure.
name fail_usercopy, interval 1, probability 0, space 0, times 0
CPU: 1 PID: 4697 Comm: syz-executor.3 Tainted: G        W          6.0.0-rc6-next-20220920 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0x8b/0xb3
 should_fail.cold+0x5/0xa
 copyin+0x19/0x120
 copy_page_from_iter_atomic+0x249/0x1290
 generic_perform_write+0x2cb/0x580
 __generic_file_write_iter+0x2da/0x480
 generic_file_write_iter+0xe3/0x350
 vfs_write+0x9c3/0xd90
 __x64_sys_pwrite64+0x1fb/0x260
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fa6b93efab7
Code: 08 89 3c 24 48 89 4c 24 18 e8 e5 f8 ff ff 4c 8b 54 24 18 48 8b 54 24 10 41 89 c0 48 8b 74 24 08 8b 3c 24 b8 12 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 04 24 e8 15 f9 ff ff 48 8b
RSP: 002b:00007fa6b69b1f20 EFLAGS: 00000293 ORIG_RAX: 0000000000000012
RAX: ffffffffffffffda RBX: 00007fa6b9486970 RCX: 00007fa6b93efab7
RDX: 0000000000000020 RSI: 0000000020010b00 RDI: 0000000000000004
RBP: 0000000000000008 R08: 0000000000000000 R09: ffffffffffffffff
R10: 0000000000031400 R11: 0000000000000293 R12: 0000000000000004
R13: 0000000000000004 R14: 0000000020000290 R15: 0000000000000006
 </TASK>
loop5: detected capacity change from 0 to 512
ext4 filesystem being mounted at /syzkaller-testdir930363313/syzkaller.ShxvvE/37/file0 supports timestamps until 2038 (0x7fffffff)
loop7: detected capacity change from 0 to 640
ext4 filesystem being mounted at /syzkaller-testdir864852741/syzkaller.CIrR0q/38/file0 supports timestamps until 2038 (0x7fffffff)
loop2: detected capacity change from 0 to 2048
loop3: detected capacity change from 0 to 1300
loop7: detected capacity change from 0 to 640
loop0: detected capacity change from 0 to 2560
loop6: detected capacity change from 0 to 4096
ext4 filesystem being mounted at /syzkaller-testdir864852741/syzkaller.CIrR0q/39/file0 supports timestamps until 2038 (0x7fffffff)
loop3: detected capacity change from 0 to 1300
ext4 filesystem being mounted at /syzkaller-testdir930363313/syzkaller.ShxvvE/39/file0 supports timestamps until 2038 (0x7fffffff)
loop1: detected capacity change from 0 to 4096
loop2: detected capacity change from 0 to 2048
loop7: detected capacity change from 0 to 640
loop5: detected capacity change from 0 to 512
loop3: detected capacity change from 0 to 1300
ext4 filesystem being mounted at /syzkaller-testdir864852741/syzkaller.CIrR0q/40/file0 supports timestamps until 2038 (0x7fffffff)
loop2: detected capacity change from 0 to 2048
EXT4-fs (loop2): VFS: Can't find ext4 filesystem
loop0: detected capacity change from 0 to 2560
loop3: detected capacity change from 0 to 1300
loop6: detected capacity change from 0 to 4096
loop4: detected capacity change from 0 to 4096
ext4 filesystem being mounted at /syzkaller-testdir930363313/syzkaller.ShxvvE/41/file0 supports timestamps until 2038 (0x7fffffff)
FAULT_INJECTION: forcing a failure.
name fail_usercopy, interval 1, probability 0, space 0, times 0
CPU: 0 PID: 4770 Comm: syz-executor.2 Tainted: G        W          6.0.0-rc6-next-20220920 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0x8b/0xb3
 should_fail.cold+0x5/0xa
 copyin+0x19/0x120
 copy_page_from_iter_atomic+0x249/0x1290
 generic_perform_write+0x2cb/0x580
 __generic_file_write_iter+0x2da/0x480
 generic_file_write_iter+0xe3/0x350
 vfs_write+0x9c3/0xd90
 __x64_sys_pwrite64+0x1fb/0x260
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fd93d260ab7
Code: 08 89 3c 24 48 89 4c 24 18 e8 e5 f8 ff ff 4c 8b 54 24 18 48 8b 54 24 10 41 89 c0 48 8b 74 24 08 8b 3c 24 b8 12 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 04 24 e8 15 f9 ff ff 48 8b
RSP: 002b:00007fd93a822f20 EFLAGS: 00000293 ORIG_RAX: 0000000000000012
RAX: ffffffffffffffda RBX: 00007fd93d2f7970 RCX: 00007fd93d260ab7
RDX: 00000000000000c0 RSI: 0000000020010000 RDI: 0000000000000004
RBP: 000000000000002a R08: 0000000000000000 R09: ffffffffffffffff
R10: 0000000000000400 R11: 0000000000000293 R12: 0000000000000004
R13: 0000000000000004 R14: 0000000020000200 R15: 0000000000000000
 </TASK>
FAULT_INJECTION: forcing a failure.
name fail_usercopy, interval 1, probability 0, space 0, times 0
CPU: 1 PID: 4772 Comm: syz-executor.5 Tainted: G        W          6.0.0-rc6-next-20220920 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0x8b/0xb3
 should_fail.cold+0x5/0xa
 copyin+0x19/0x120
 copy_page_from_iter_atomic+0x249/0x1290
 generic_perform_write+0x2cb/0x580
 __generic_file_write_iter+0x2da/0x480
 generic_file_write_iter+0xe3/0x350
 vfs_write+0x9c3/0xd90
 __x64_sys_pwrite64+0x1fb/0x260
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f4a298b9ab7
Code: 08 89 3c 24 48 89 4c 24 18 e8 e5 f8 ff ff 4c 8b 54 24 18 48 8b 54 24 10 41 89 c0 48 8b 74 24 08 8b 3c 24 b8 12 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 04 24 e8 15 f9 ff ff 48 8b
RSP: 002b:00007f4a26e7bf20 EFLAGS: 00000293 ORIG_RAX: 0000000000000012
RAX: ffffffffffffffda RBX: 00007f4a29950970 RCX: 00007f4a298b9ab7
RDX: 00000000000000c0 RSI: 0000000020010000 RDI: 0000000000000004
loop2: detected capacity change from 0 to 2048
RBP: 000000000000001d R08: 0000000000000000 R09: ffffffffffffffff
R10: 0000000000000400 R11: 0000000000000293 R12: 0000000000000004
R13: 0000000000000004 R14: 0000000020000200 R15: 0000000000000000
 </TASK>
loop1: detected capacity change from 0 to 4096
loop3: detected capacity change from 0 to 1300
loop7: detected capacity change from 0 to 2560
loop5: detected capacity change from 0 to 512
loop4: detected capacity change from 0 to 4096
loop6: detected capacity change from 0 to 4096
ext4 filesystem being mounted at /syzkaller-testdir864852741/syzkaller.CIrR0q/41/file0 supports timestamps until 2038 (0x7fffffff)
EXT4-fs (loop6): VFS: Can't find ext4 filesystem
loop3: detected capacity change from 0 to 1300
FAULT_INJECTION: forcing a failure.
name fail_usercopy, interval 1, probability 0, space 0, times 0
CPU: 1 PID: 4794 Comm: syz-executor.5 Tainted: G        W          6.0.0-rc6-next-20220920 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0x8b/0xb3
 should_fail.cold+0x5/0xa
 copyin+0x19/0x120
 copy_page_from_iter_atomic+0x249/0x1290
 generic_perform_write+0x2cb/0x580
 __generic_file_write_iter+0x2da/0x480
 generic_file_write_iter+0xe3/0x350
 vfs_write+0x9c3/0xd90
 __x64_sys_pwrite64+0x1fb/0x260
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f4a298b9ab7
Code: 08 89 3c 24 48 89 4c 24 18 e8 e5 f8 ff ff 4c 8b 54 24 18 48 8b 54 24 10 41 89 c0 48 8b 74 24 08 8b 3c 24 b8 12 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 04 24 e8 15 f9 ff ff 48 8b
RSP: 002b:00007f4a26e7bf20 EFLAGS: 00000293 ORIG_RAX: 0000000000000012
RAX: ffffffffffffffda RBX: 00007f4a29950970 RCX: 00007f4a298b9ab7
RDX: 0000000000000040 RSI: 0000000020010100 RDI: 0000000000000004
RBP: 000000000000001d R08: 0000000000000000 R09: ffffffffffffffff
R10: 00000000000004e0 R11: 0000000000000293 R12: 0000000000000004
R13: 0000000000000004 R14: 0000000020000218 R15: 0000000000000001
 </TASK>
loop5: detected capacity change from 0 to 512
loop0: detected capacity change from 0 to 2560
loop1: detected capacity change from 0 to 4096
loop4: detected capacity change from 0 to 1024
FAULT_INJECTION: forcing a failure.
name fail_usercopy, interval 1, probability 0, space 0, times 0
CPU: 1 PID: 4806 Comm: syz-executor.2 Tainted: G        W          6.0.0-rc6-next-20220920 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0x8b/0xb3
 should_fail.cold+0x5/0xa
 copyin+0x19/0x120
 copy_page_from_iter_atomic+0x249/0x1290
 generic_perform_write+0x2cb/0x580
 __generic_file_write_iter+0x2da/0x480
 generic_file_write_iter+0xe3/0x350
 vfs_write+0x9c3/0xd90
 __x64_sys_pwrite64+0x1fb/0x260
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fd93d260ab7
Code: 08 89 3c 24 48 89 4c 24 18 e8 e5 f8 ff ff 4c 8b 54 24 18 48 8b 54 24 10 41 89 c0 48 8b 74 24 08 8b 3c 24 b8 12 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 04 24 e8 15 f9 ff ff 48 8b
RSP: 002b:00007fd93a822f20 EFLAGS: 00000293 ORIG_RAX: 0000000000000012
RAX: ffffffffffffffda RBX: 00007fd93d2f7970 RCX: 00007fd93d260ab7
RDX: 0000000000000040 RSI: 0000000020010100 RDI: 0000000000000004
RBP: 000000000000002a R08: 0000000000000000 R09: ffffffffffffffff
R10: 00000000000004e0 R11: 0000000000000293 R12: 0000000000000004
R13: 0000000000000004 R14: 0000000020000218 R15: 0000000000000001
 </TASK>
ext4 filesystem being mounted at /syzkaller-testdir930363313/syzkaller.ShxvvE/43/file0 supports timestamps until 2038 (0x7fffffff)
loop2: detected capacity change from 0 to 2048
FAULT_INJECTION: forcing a failure.
name fail_usercopy, interval 1, probability 0, space 0, times 0
CPU: 1 PID: 4812 Comm: syz-executor.6 Tainted: G        W          6.0.0-rc6-next-20220920 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0x8b/0xb3
 should_fail.cold+0x5/0xa
 copyin+0x19/0x120
 copy_page_from_iter_atomic+0x249/0x1290
 generic_perform_write+0x2cb/0x580
 __generic_file_write_iter+0x2da/0x480
 generic_file_write_iter+0xe3/0x350
 vfs_write+0x9c3/0xd90
 __x64_sys_pwrite64+0x1fb/0x260
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fb61aea1ab7
Code: 08 89 3c 24 48 89 4c 24 18 e8 e5 f8 ff ff 4c 8b 54 24 18 48 8b 54 24 10 41 89 c0 48 8b 74 24 08 8b 3c 24 b8 12 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 04 24 e8 15 f9 ff ff 48 8b
RSP: 002b:00007fb618463f20 EFLAGS: 00000293 ORIG_RAX: 0000000000000012
RAX: ffffffffffffffda RBX: 00007fb61af38970 RCX: 00007fb61aea1ab7
RDX: 00000000000000c0 RSI: 0000000020010000 RDI: 0000000000000004
RBP: 0000000000000028 R08: 0000000000000000 R09: ffffffffffffffff
R10: 0000000000000400 R11: 0000000000000293 R12: 0000000000000004
R13: 0000000000000004 R14: 0000000020000200 R15: 0000000000000000
 </TASK>
loop0: detected capacity change from 0 to 2560
EXT4-fs (loop0): VFS: Can't find ext4 filesystem
FAULT_INJECTION: forcing a failure.
name fail_usercopy, interval 1, probability 0, space 0, times 0
CPU: 0 PID: 4817 Comm: syz-executor.2 Tainted: G        W          6.0.0-rc6-next-20220920 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0x8b/0xb3
 should_fail.cold+0x5/0xa
 copyin+0x19/0x120
 copy_page_from_iter_atomic+0x249/0x1290
 generic_perform_write+0x2cb/0x580
FAULT_INJECTION: forcing a failure.
name fail_usercopy, interval 1, probability 0, space 0, times 0
 __generic_file_write_iter+0x2da/0x480
 generic_file_write_iter+0xe3/0x350
 vfs_write+0x9c3/0xd90
 __x64_sys_pwrite64+0x1fb/0x260
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fd93d260ab7
Code: 08 89 3c 24 48 89 4c 24 18 e8 e5 f8 ff ff 4c 8b 54 24 18 48 8b 54 24 10 41 89 c0 48 8b 74 24 08 8b 3c 24 b8 12 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 04 24 e8 15 f9 ff ff 48 8b
RSP: 002b:00007fd93a822f20 EFLAGS: 00000293 ORIG_RAX: 0000000000000012
RAX: ffffffffffffffda RBX: 00007fd93d2f7970 RCX: 00007fd93d260ab7
RDX: 0000000000000040 RSI: 0000000020010200 RDI: 0000000000000004
RBP: 000000000000002a R08: 0000000000000000 R09: ffffffffffffffff
R10: 0000000000000540 R11: 0000000000000293 R12: 0000000000000004
R13: 0000000000000004 R14: 0000000020000230 R15: 0000000000000002
 </TASK>
CPU: 1 PID: 4820 Comm: syz-executor.3 Tainted: G        W          6.0.0-rc6-next-20220920 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0x8b/0xb3
 should_fail.cold+0x5/0xa
 copyin+0x19/0x120
 copy_page_from_iter_atomic+0x249/0x1290
FAULT_INJECTION: forcing a failure.
name fail_usercopy, interval 1, probability 0, space 0, times 0
 generic_perform_write+0x2cb/0x580
 __generic_file_write_iter+0x2da/0x480
 generic_file_write_iter+0xe3/0x350
 vfs_write+0x9c3/0xd90
 __x64_sys_pwrite64+0x1fb/0x260
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fa6b93efab7
Code: 08 89 3c 24 48 89 4c 24 18 e8 e5 f8 ff ff 4c 8b 54 24 18 48 8b 54 24 10 41 89 c0 48 8b 74 24 08 8b 3c 24 b8 12 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 04 24 e8 15 f9 ff ff 48 8b
RSP: 002b:00007fa6b69b1f20 EFLAGS: 00000293 ORIG_RAX: 0000000000000012
RAX: ffffffffffffffda RBX: 00007fa6b9486970 RCX: 00007fa6b93efab7
RDX: 0000000000000080 RSI: 0000000020010c00 RDI: 0000000000000004
RBP: 0000000000000008 R08: 0000000000000000 R09: ffffffffffffffff
R10: 0000000000051400 R11: 0000000000000293 R12: 0000000000000004
R13: 0000000000000004 R14: 00000000200002a8 R15: 0000000000000007
 </TASK>
CPU: 0 PID: 4821 Comm: syz-executor.5 Tainted: G        W          6.0.0-rc6-next-20220920 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0x8b/0xb3
 should_fail.cold+0x5/0xa
 copyin+0x19/0x120
 copy_page_from_iter_atomic+0x249/0x1290
 generic_perform_write+0x2cb/0x580
 __generic_file_write_iter+0x2da/0x480
 generic_file_write_iter+0xe3/0x350
 vfs_write+0x9c3/0xd90
 __x64_sys_pwrite64+0x1fb/0x260
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f4a298b9ab7
Code: 08 89 3c 24 48 89 4c 24 18 e8 e5 f8 ff ff 4c 8b 54 24 18 48 8b 54 24 10 41 89 c0 48 8b 74 24 08 8b 3c 24 b8 12 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 04 24 e8 15 f9 ff ff 48 8b
RSP: 002b:00007f4a26e7bf20 EFLAGS: 00000293 ORIG_RAX: 0000000000000012
RAX: ffffffffffffffda RBX: 00007f4a29950970 RCX: 00007f4a298b9ab7
RDX: 0000000000000040 RSI: 0000000020010200 RDI: 0000000000000004
RBP: 000000000000001d R08: 0000000000000000 R09: ffffffffffffffff
R10: 0000000000000540 R11: 0000000000000293 R12: 0000000000000004
R13: 0000000000000004 R14: 0000000020000230 R15: 0000000000000002
loop4: detected capacity change from 0 to 512
 </TASK>
loop1: detected capacity change from 0 to 4096
loop6: detected capacity change from 0 to 4096
loop5: detected capacity change from 0 to 512
loop3: detected capacity change from 0 to 1300
FAULT_INJECTION: forcing a failure.
name fail_usercopy, interval 1, probability 0, space 0, times 0
CPU: 0 PID: 4838 Comm: syz-executor.0 Tainted: G        W          6.0.0-rc6-next-20220920 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0x8b/0xb3
 should_fail.cold+0x5/0xa
 copyin+0x19/0x120
 copy_page_from_iter_atomic+0x249/0x1290
 generic_perform_write+0x2cb/0x580
FAULT_INJECTION: forcing a failure.
name fail_usercopy, interval 1, probability 0, space 0, times 0
 __generic_file_write_iter+0x2da/0x480
 generic_file_write_iter+0xe3/0x350
 vfs_write+0x9c3/0xd90
 __x64_sys_pwrite64+0x1fb/0x260
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f2119c98ab7
Code: 08 89 3c 24 48 89 4c 24 18 e8 e5 f8 ff ff 4c 8b 54 24 18 48 8b 54 24 10 41 89 c0 48 8b 74 24 08 8b 3c 24 b8 12 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 04 24 e8 15 f9 ff ff 48 8b
RSP: 002b:00007f211725af20 EFLAGS: 00000293 ORIG_RAX: 0000000000000012
RAX: ffffffffffffffda RBX: 00007f2119d2f970 RCX: 00007f2119c98ab7
RDX: 00000000000000c0 RSI: 0000000020010000 RDI: 0000000000000004
RBP: 0000000000000015 R08: 0000000000000000 R09: ffffffffffffffff
R10: 0000000000000400 R11: 0000000000000293 R12: 0000000000000004
R13: 0000000000000004 R14: 0000000020000200 R15: 0000000000000000
 </TASK>
CPU: 1 PID: 4840 Comm: syz-executor.5 Tainted: G        W          6.0.0-rc6-next-20220920 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0x8b/0xb3
 should_fail.cold+0x5/0xa
 copyin+0x19/0x120
 copy_page_from_iter_atomic+0x249/0x1290
 generic_perform_write+0x2cb/0x580
 __generic_file_write_iter+0x2da/0x480
 generic_file_write_iter+0xe3/0x350
 vfs_write+0x9c3/0xd90
 __x64_sys_pwrite64+0x1fb/0x260
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f4a298b9ab7
Code: 08 89 3c 24 48 89 4c 24 18 e8 e5 f8 ff ff 4c 8b 54 24 18 48 8b 54 24 10 41 89 c0 48 8b 74 24 08 8b 3c 24 b8 12 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 04 24 e8 15 f9 ff ff 48 8b
RSP: 002b:00007f4a26e7bf20 EFLAGS: 00000293 ORIG_RAX: 0000000000000012
RAX: ffffffffffffffda RBX: 00007f4a29950970 RCX: 00007f4a298b9ab7
RDX: 0000000000000020 RSI: 0000000020010300 RDI: 0000000000000004
RBP: 000000000000001d R08: 0000000000000000 R09: ffffffffffffffff
R10: 0000000000000640 R11: 0000000000000293 R12: 0000000000000004
R13: 0000000000000004 R14: 0000000020000248 R15: 0000000000000003
 </TASK>
loop4: detected capacity change from 0 to 2048
FAULT_INJECTION: forcing a failure.
name fail_usercopy, interval 1, probability 0, space 0, times 0
CPU: 1 PID: 4849 Comm: syz-executor.5 Tainted: G        W          6.0.0-rc6-next-20220920 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0x8b/0xb3
 should_fail.cold+0x5/0xa
 copyin+0x19/0x120
 copy_page_from_iter_atomic+0x249/0x1290
 generic_perform_write+0x2cb/0x580
 __generic_file_write_iter+0x2da/0x480
 generic_file_write_iter+0xe3/0x350
 vfs_write+0x9c3/0xd90
 __x64_sys_pwrite64+0x1fb/0x260
loop0: detected capacity change from 0 to 2560
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f4a298b9ab7
Code: 08 89 3c 24 48 89 4c 24 18 e8 e5 f8 ff ff 4c 8b 54 24 18 48 8b 54 24 10 41 89 c0 48 8b 74 24 08 8b 3c 24 b8 12 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 04 24 e8 15 f9 ff ff 48 8b
RSP: 002b:00007f4a26e7bf20 EFLAGS: 00000293 ORIG_RAX: 0000000000000012
RAX: ffffffffffffffda RBX: 00007f4a29950970 RCX: 00007f4a298b9ab7
RDX: 0000000000000020 RSI: 0000000020010400 RDI: 0000000000000004
RBP: 000000000000001d R08: 0000000000000000 R09: ffffffffffffffff
R10: 0000000000000800 R11: 0000000000000293 R12: 0000000000000004
R13: 0000000000000004 R14: 0000000020000260 R15: 0000000000000004
 </TASK>
FAULT_INJECTION: forcing a failure.
name fail_usercopy, interval 1, probability 0, space 0, times 0
CPU: 1 PID: 4850 Comm: syz-executor.2 Tainted: G        W          6.0.0-rc6-next-20220920 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0x8b/0xb3
 should_fail.cold+0x5/0xa
 copyin+0x19/0x120
 copy_page_from_iter_atomic+0x249/0x1290
 generic_perform_write+0x2cb/0x580
 __generic_file_write_iter+0x2da/0x480
loop4: detected capacity change from 0 to 2048
 generic_file_write_iter+0xe3/0x350
 vfs_write+0x9c3/0xd90
 __x64_sys_pwrite64+0x1fb/0x260
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fd93d260ab7
Code: 08 89 3c 24 48 89 4c 24 18 e8 e5 f8 ff ff 4c 8b 54 24 18 48 8b 54 24 10 41 89 c0 48 8b 74 24 08 8b 3c 24 b8 12 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 04 24 e8 15 f9 ff ff 48 8b
RSP: 002b:00007fd93a822f20 EFLAGS: 00000293 ORIG_RAX: 0000000000000012
RAX: ffffffffffffffda RBX: 00007fd93d2f7970 RCX: 00007fd93d260ab7
RDX: 0000000000000020 RSI: 0000000020010300 RDI: 0000000000000004
RBP: 000000000000002a R08: 0000000000000000 R09: ffffffffffffffff
R10: 0000000000000640 R11: 0000000000000293 R12: 0000000000000004
R13: 0000000000000004 R14: 0000000020000248 R15: 0000000000000003
 </TASK>
FAULT_INJECTION: forcing a failure.
name fail_usercopy, interval 1, probability 0, space 0, times 0
CPU: 1 PID: 4851 Comm: syz-executor.6 Tainted: G        W          6.0.0-rc6-next-20220920 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0x8b/0xb3
 should_fail.cold+0x5/0xa
 copyin+0x19/0x120
 copy_page_from_iter_atomic+0x249/0x1290
 generic_perform_write+0x2cb/0x580
 __generic_file_write_iter+0x2da/0x480
 generic_file_write_iter+0xe3/0x350
loop3: detected capacity change from 0 to 1300
 vfs_write+0x9c3/0xd90
 __x64_sys_pwrite64+0x1fb/0x260
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fb61aea1ab7
Code: 08 89 3c 24 48 89 4c 24 18 e8 e5 f8 ff ff 4c 8b 54 24 18 48 8b 54 24 10 41 89 c0 48 8b 74 24 08 8b 3c 24 b8 12 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 04 24 e8 15 f9 ff ff 48 8b
RSP: 002b:00007fb618463f20 EFLAGS: 00000293 ORIG_RAX: 0000000000000012
RAX: ffffffffffffffda RBX: 00007fb61af38970 RCX: 00007fb61aea1ab7
RDX: 0000000000000040 RSI: 0000000020010100 RDI: 0000000000000004
RBP: 0000000000000028 R08: 0000000000000000 R09: ffffffffffffffff
R10: 00000000000004e0 R11: 0000000000000293 R12: 0000000000000004
R13: 0000000000000004 R14: 0000000020000218 R15: 0000000000000001
 </TASK>
loop6: detected capacity change from 0 to 4096
ext4 filesystem being mounted at /syzkaller-testdir930363313/syzkaller.ShxvvE/45/file0 supports timestamps until 2038 (0x7fffffff)
loop1: detected capacity change from 0 to 2048
ext4 filesystem being mounted at /syzkaller-testdir269072829/syzkaller.9Iw8Ud/39/file0 supports timestamps until 2038 (0x7fffffff)
loop2: detected capacity change from 0 to 2048
loop7: detected capacity change from 0 to 2048
loop1: detected capacity change from 0 to 512
FAULT_INJECTION: forcing a failure.
name fail_usercopy, interval 1, probability 0, space 0, times 0
CPU: 0 PID: 4872 Comm: syz-executor.5 Tainted: G        W          6.0.0-rc6-next-20220920 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0x8b/0xb3
 should_fail.cold+0x5/0xa
 copyin+0x19/0x120
 copy_page_from_iter_atomic+0x249/0x1290
 generic_perform_write+0x2cb/0x580
 __generic_file_write_iter+0x2da/0x480
 generic_file_write_iter+0xe3/0x350
 vfs_write+0x9c3/0xd90
 __x64_sys_pwrite64+0x1fb/0x260
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f4a298b9ab7
Code: 08 89 3c 24 48 89 4c 24 18 e8 e5 f8 ff ff 4c 8b 54 24 18 48 8b 54 24 10 41 89 c0 48 8b 74 24 08 8b 3c 24 b8 12 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 04 24 e8 15 f9 ff ff 48 8b
RSP: 002b:00007f4a26e7bf20 EFLAGS: 00000293 ORIG_RAX: 0000000000000012
RAX: ffffffffffffffda RBX: 00007f4a29950970 RCX: 00007f4a298b9ab7
RDX: 0000000000000820 RSI: 0000000020010500 RDI: 0000000000000004
RBP: 000000000000001d R08: 0000000000000000 R09: ffffffffffffffff
R10: 0000000000000c00 R11: 0000000000000293 R12: 0000000000000004
R13: 0000000000000004 R14: 0000000020000278 R15: 0000000000000005
 </TASK>
loop5: detected capacity change from 0 to 512
FAULT_INJECTION: forcing a failure.
name fail_usercopy, interval 1, probability 0, space 0, times 0
CPU: 1 PID: 4874 Comm: syz-executor.3 Tainted: G        W          6.0.0-rc6-next-20220920 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0x8b/0xb3
 should_fail.cold+0x5/0xa
 strncpy_from_user+0x34/0x3e0
 getname_flags.part.0+0x95/0x4f0
 getname+0x8e/0xd0
 do_sys_openat2+0xf9/0x4c0
 __x64_sys_openat+0x13f/0x1f0
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fa6b93efa04
Code: 84 00 00 00 00 00 44 89 54 24 0c e8 96 f9 ff ff 44 8b 54 24 0c 44 89 e2 48 89 ee 41 89 c0 bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 77 34 44 89 c7 89 44 24 0c e8 c8 f9 ff ff 8b 44
RSP: 002b:00007fa6b69b1ed0 EFLAGS: 00000293 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007fa6b9486970 RCX: 00007fa6b93efa04
RDX: 0000000000000002 RSI: 00007fa6b69b2000 RDI: 00000000ffffff9c
RBP: 00007fa6b69b2000 R08: 0000000000000000 R09: ffffffffffffffff
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000002
R13: 0000000000000004 R14: 00000000200002c0 R15: 0000000000000008
 </TASK>
loop7: detected capacity change from 0 to 512
FAULT_INJECTION: forcing a failure.
name fail_usercopy, interval 1, probability 0, space 0, times 0
FAULT_INJECTION: forcing a failure.
name fail_usercopy, interval 1, probability 0, space 0, times 0
CPU: 0 PID: 4885 Comm: syz-executor.6 Tainted: G        W          6.0.0-rc6-next-20220920 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0x8b/0xb3
 should_fail.cold+0x5/0xa
 copyin+0x19/0x120
 copy_page_from_iter_atomic+0x249/0x1290
 generic_perform_write+0x2cb/0x580
 __generic_file_write_iter+0x2da/0x480
 generic_file_write_iter+0xe3/0x350
 vfs_write+0x9c3/0xd90
 __x64_sys_pwrite64+0x1fb/0x260
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fb61aea1ab7
Code: 08 89 3c 24 48 89 4c 24 18 e8 e5 f8 ff ff 4c 8b 54 24 18 48 8b 54 24 10 41 89 c0 48 8b 74 24 08 8b 3c 24 b8 12 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 04 24 e8 15 f9 ff ff 48 8b
RSP: 002b:00007fb618463f20 EFLAGS: 00000293 ORIG_RAX: 0000000000000012
RAX: ffffffffffffffda RBX: 00007fb61af38970 RCX: 00007fb61aea1ab7
RDX: 0000000000000040 RSI: 0000000020010200 RDI: 0000000000000004
RBP: 0000000000000028 R08: 0000000000000000 R09: ffffffffffffffff
R10: 0000000000000540 R11: 0000000000000293 R12: 0000000000000004
R13: 0000000000000004 R14: 0000000020000230 R15: 0000000000000002
 </TASK>
CPU: 1 PID: 4884 Comm: syz-executor.2 Tainted: G        W          6.0.0-rc6-next-20220920 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0x8b/0xb3
 should_fail.cold+0x5/0xa
 copyin+0x19/0x120
 copy_page_from_iter_atomic+0x249/0x1290
 generic_perform_write+0x2cb/0x580
loop6: detected capacity change from 0 to 4096
 __generic_file_write_iter+0x2da/0x480
 generic_file_write_iter+0xe3/0x350
 vfs_write+0x9c3/0xd90
 __x64_sys_pwrite64+0x1fb/0x260
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fd93d260ab7
Code: 08 89 3c 24 48 89 4c 24 18 e8 e5 f8 ff ff 4c 8b 54 24 18 48 8b 54 24 10 41 89 c0 48 8b 74 24 08 8b 3c 24 b8 12 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 04 24 e8 15 f9 ff ff 48 8b
RSP: 002b:00007fd93a822f20 EFLAGS: 00000293 ORIG_RAX: 0000000000000012
RAX: ffffffffffffffda RBX: 00007fd93d2f7970 RCX: 00007fd93d260ab7
RDX: 0000000000000020 RSI: 0000000020010400 RDI: 0000000000000004
RBP: 000000000000002a R08: 0000000000000000 R09: ffffffffffffffff
R10: 0000000000000800 R11: 0000000000000293 R12: 0000000000000004
R13: 0000000000000004 R14: 0000000020000260 R15: 0000000000000004
 </TASK>
FAULT_INJECTION: forcing a failure.
name fail_usercopy, interval 1, probability 0, space 0, times 0
CPU: 0 PID: 4886 Comm: syz-executor.0 Tainted: G        W          6.0.0-rc6-next-20220920 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0x8b/0xb3
 should_fail.cold+0x5/0xa
 copyin+0x19/0x120
 copy_page_from_iter_atomic+0x249/0x1290
 generic_perform_write+0x2cb/0x580
 __generic_file_write_iter+0x2da/0x480
 generic_file_write_iter+0xe3/0x350
 vfs_write+0x9c3/0xd90
 __x64_sys_pwrite64+0x1fb/0x260
loop1: detected capacity change from 0 to 2048
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f2119c98ab7
Code: 08 89 3c 24 48 89 4c 24 18 e8 e5 f8 ff ff 4c 8b 54 24 18 48 8b 54 24 10 41 89 c0 48 8b 74 24 08 8b 3c 24 b8 12 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 04 24 e8 15 f9 ff ff 48 8b
RSP: 002b:00007f211725af20 EFLAGS: 00000293 ORIG_RAX: 0000000000000012
RAX: ffffffffffffffda RBX: 00007f2119d2f970 RCX: 00007f2119c98ab7
RDX: 0000000000000040 RSI: 0000000020010100 RDI: 0000000000000004
RBP: 0000000000000015 R08: 0000000000000000 R09: ffffffffffffffff
R10: 00000000000004e0 R11: 0000000000000293 R12: 0000000000000004
R13: 0000000000000004 R14: 0000000020000218 R15: 0000000000000001
 </TASK>
loop0: detected capacity change from 0 to 2560
loop2: detected capacity change from 0 to 2048
ext4 filesystem being mounted at /syzkaller-testdir930363313/syzkaller.ShxvvE/46/file0 supports timestamps until 2038 (0x7fffffff)
FAULT_INJECTION: forcing a failure.
name fail_usercopy, interval 1, probability 0, space 0, times 0
loop2: detected capacity change from 0 to 2048
CPU: 1 PID: 4904 Comm: syz-executor.0 Tainted: G        W          6.0.0-rc6-next-20220920 #1
loop5: detected capacity change from 0 to 512
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0x8b/0xb3
 should_fail.cold+0x5/0xa
 copyin+0x19/0x120
 copy_page_from_iter_atomic+0x249/0x1290
 generic_perform_write+0x2cb/0x580
 __generic_file_write_iter+0x2da/0x480
 generic_file_write_iter+0xe3/0x350
 vfs_write+0x9c3/0xd90
 __x64_sys_pwrite64+0x1fb/0x260
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f2119c98ab7
Code: 08 89 3c 24 48 89 4c 24 18 e8 e5 f8 ff ff 4c 8b 54 24 18 48 8b 54 24 10 41 89 c0 48 8b 74 24 08 8b 3c 24 b8 12 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 04 24 e8 15 f9 ff ff 48 8b
RSP: 002b:00007f211725af20 EFLAGS: 00000293 ORIG_RAX: 0000000000000012
RAX: ffffffffffffffda RBX: 00007f2119d2f970 RCX: 00007f2119c98ab7
RDX: 0000000000000020 RSI: 0000000020010200 RDI: 0000000000000004
RBP: 0000000000000015 R08: 0000000000000000 R09: ffffffffffffffff
R10: 0000000000000560 R11: 0000000000000293 R12: 0000000000000004
R13: 0000000000000004 R14: 0000000020000230 R15: 0000000000000002
 </TASK>
FAULT_INJECTION: forcing a failure.
name fail_usercopy, interval 1, probability 0, space 0, times 0
CPU: 1 PID: 4908 Comm: syz-executor.6 Tainted: G        W          6.0.0-rc6-next-20220920 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0x8b/0xb3
 should_fail.cold+0x5/0xa
 copyin+0x19/0x120
 copy_page_from_iter_atomic+0x249/0x1290
 generic_perform_write+0x2cb/0x580
 __generic_file_write_iter+0x2da/0x480
 generic_file_write_iter+0xe3/0x350
 vfs_write+0x9c3/0xd90
 __x64_sys_pwrite64+0x1fb/0x260
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fb61aea1ab7
Code: 08 89 3c 24 48 89 4c 24 18 e8 e5 f8 ff ff 4c 8b 54 24 18 48 8b 54 24 10 41 89 c0 48 8b 74 24 08 8b 3c 24 b8 12 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 04 24 e8 15 f9 ff ff 48 8b
RSP: 002b:00007fb618463f20 EFLAGS: 00000293 ORIG_RAX: 0000000000000012
RAX: ffffffffffffffda RBX: 00007fb61af38970 RCX: 00007fb61aea1ab7
RDX: 0000000000000020 RSI: 0000000020010300 RDI: 0000000000000004
RBP: 0000000000000028 R08: 0000000000000000 R09: ffffffffffffffff
R10: 0000000000000640 R11: 0000000000000293 R12: 0000000000000004
R13: 0000000000000004 R14: 0000000020000248 R15: 0000000000000003
 </TASK>
loop7: detected capacity change from 0 to 512
loop1: detected capacity change from 0 to 640
loop0: detected capacity change from 0 to 2560
loop6: detected capacity change from 0 to 4096
ext4 filesystem being mounted at /syzkaller-testdir722351477/syzkaller.PIv0cR/54/file0 supports timestamps until 2038 (0x7fffffff)
ext4 filesystem being mounted at /syzkaller-testdir930363313/syzkaller.ShxvvE/47/file0 supports timestamps until 2038 (0x7fffffff)
loop2: detected capacity change from 0 to 2048
loop5: detected capacity change from 0 to 512
loop3: detected capacity change from 0 to 1300
loop7: detected capacity change from 0 to 512
loop4: detected capacity change from 0 to 4096
loop0: detected capacity change from 0 to 2560
EXT4-fs (loop0): ext4_check_descriptors: Block bitmap for group 0 overlaps superblock
EXT4-fs (loop0): group descriptors corrupted!
loop1: detected capacity change from 0 to 4096
loop5: detected capacity change from 0 to 512
loop6: detected capacity change from 0 to 4096
loop7: detected capacity change from 0 to 512
EXT4-fs (loop6): ext4_check_descriptors: Block bitmap for group 0 overlaps superblock
EXT4-fs (loop6): group descriptors corrupted!
loop4: detected capacity change from 0 to 2560
loop2: detected capacity change from 0 to 2048
loop0: detected capacity change from 0 to 2560
ext4 filesystem being mounted at /syzkaller-testdir269072829/syzkaller.9Iw8Ud/44/file0 supports timestamps until 2038 (0x7fffffff)
ext4 filesystem being mounted at /syzkaller-testdir930363313/syzkaller.ShxvvE/49/file0 supports timestamps until 2038 (0x7fffffff)
loop3: detected capacity change from 0 to 1300
FAULT_INJECTION: forcing a failure.
name fail_usercopy, interval 1, probability 0, space 0, times 0
CPU: 1 PID: 4966 Comm: syz-executor.5 Tainted: G        W          6.0.0-rc6-next-20220920 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0x8b/0xb3
 should_fail.cold+0x5/0xa
 copyin+0x19/0x120
 copy_page_from_iter_atomic+0x249/0x1290
 generic_perform_write+0x2cb/0x580
 __generic_file_write_iter+0x2da/0x480
 generic_file_write_iter+0xe3/0x350
 vfs_write+0x9c3/0xd90
 __x64_sys_pwrite64+0x1fb/0x260
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f4a298b9ab7
Code: 08 89 3c 24 48 89 4c 24 18 e8 e5 f8 ff ff 4c 8b 54 24 18 48 8b 54 24 10 41 89 c0 48 8b 74 24 08 8b 3c 24 b8 12 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 04 24 e8 15 f9 ff ff 48 8b
RSP: 002b:00007f4a26e7bf20 EFLAGS: 00000293 ORIG_RAX: 0000000000000012
RAX: ffffffffffffffda RBX: 00007f4a29950970 RCX: 00007f4a298b9ab7
RDX: 0000000000000820 RSI: 0000000020010500 RDI: 0000000000000004
RBP: 000000000000001d R08: 0000000000000000 R09: ffffffffffffffff
R10: 0000000000000c00 R11: 0000000000000293 R12: 0000000000000004
R13: 0000000000000004 R14: 0000000020000278 R15: 0000000000000005
 </TASK>
FAULT_INJECTION: forcing a failure.
name fail_usercopy, interval 1, probability 0, space 0, times 0
CPU: 1 PID: 4970 Comm: syz-executor.2 Tainted: G        W          6.0.0-rc6-next-20220920 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0x8b/0xb3
 should_fail.cold+0x5/0xa
 copyin+0x19/0x120
 copy_page_from_iter_atomic+0x249/0x1290
 generic_perform_write+0x2cb/0x580
 __generic_file_write_iter+0x2da/0x480
 generic_file_write_iter+0xe3/0x350
 vfs_write+0x9c3/0xd90
 __x64_sys_pwrite64+0x1fb/0x260
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fd93d260ab7
Code: 08 89 3c 24 48 89 4c 24 18 e8 e5 f8 ff ff 4c 8b 54 24 18 48 8b 54 24 10 41 89 c0 48 8b 74 24 08 8b 3c 24 b8 12 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 04 24 e8 15 f9 ff ff 48 8b
RSP: 002b:00007fd93a822f20 EFLAGS: 00000293 ORIG_RAX: 0000000000000012
RAX: ffffffffffffffda RBX: 00007fd93d2f7970 RCX: 00007fd93d260ab7
RDX: 0000000000001020 RSI: 0000000020010500 RDI: 0000000000000004
RBP: 000000000000002a R08: 0000000000000000 R09: ffffffffffffffff
R10: 0000000000001000 R11: 0000000000000293 R12: 0000000000000004
R13: 0000000000000004 R14: 0000000020000278 R15: 0000000000000005
 </TASK>
loop6: detected capacity change from 0 to 4096