loop3: detected capacity change from 0 to 39 watchdog: BUG: soft lockup - CPU#0 stuck for 25s! [syz-executor.7:7669] Modules linked in: irq event stamp: 4866953 hardirqs last enabled at (4866952): [] asm_sysvec_apic_timer_interrupt+0x16/0x20 hardirqs last disabled at (4866953): [] sysvec_apic_timer_interrupt+0xb/0xc0 softirqs last enabled at (20028): [] __irq_exit_rcu+0x11b/0x180 softirqs last disabled at (20139): [] __irq_exit_rcu+0x11b/0x180 CPU: 0 PID: 7669 Comm: syz-executor.7 Not tainted 6.0.0-rc2-next-20220825 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 RIP: 0010:write_comp_data+0x10/0x90 Code: c0 6e 02 00 48 8b 80 28 14 00 00 e9 da 90 1a 03 66 2e 0f 1f 84 00 00 00 00 00 49 89 f1 49 89 d2 49 89 f8 65 8b 05 80 c4 bc 7e <89> c6 81 e6 00 01 00 00 65 48 8b 14 25 c0 6e 02 00 a9 00 01 ff 00 RSP: 0018:ffff88806ce09cc8 EFLAGS: 00000246 RAX: 0000000000000101 RBX: 0000000000000001 RCX: ffffffff82181698 RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000000000000001 RBP: ffff88800e4f0210 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000 R13: 0000000000000000 R14: ffff88800bf91c00 R15: ffffe8ffffc03380 FS: 00007f02585cb700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000561c81595000 CR3: 000000000f72c000 CR4: 0000000000350ef0 Call Trace: sbitmap_queue_clear+0xb8/0x210 blk_mq_put_tag+0xd8/0x160 __blk_mq_free_request+0x2e0/0x380 blk_mq_free_request+0x35d/0x500 __blk_mq_end_request+0x358/0x580 scsi_end_request+0x472/0x9a0 scsi_io_completion+0xbc/0x2070 scsi_complete+0x114/0x560 blk_complete_reqs+0xb2/0xf0 __do_softirq+0x1c8/0x8d0 __irq_exit_rcu+0x11b/0x180 irq_exit_rcu+0x5/0x20 common_interrupt+0xa4/0xc0 asm_common_interrupt+0x22/0x40 RIP: 0010:_raw_spin_unlock_irq+0x25/0x50 Code: 0f 1f 44 00 00 55 48 8b 74 24 08 48 89 fd 48 83 c7 18 e8 0e 0a 06 fd 48 89 ef e8 76 7f 06 fd e8 11 9b 28 fd fb bf 01 00 00 00 36 19 fc fc 65 8b 05 af 81 de 7b 85 c0 74 06 5d e9 e5 4d 3c 00 RSP: 0018:ffff88804687f2d0 EFLAGS: 00000202 RAX: 0000000000004ea7 RBX: ffffffff852113a0 RCX: ffffffff8129592f RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001 RBP: ffffffff85211360 R08: 0000000000000001 R09: ffffffff86cb2827 R10: fffffbfff0d96504 R11: 0000000000000001 R12: ffff88804419b580 R13: dffffc0000000000 R14: ffffea00016fbf80 R15: 0000000000000001 folio_wait_bit_common+0x221/0x950 folio_wait_writeback+0x45/0x2b0 __filemap_fdatawait_range+0x12b/0x350 file_write_and_wait_range+0xed/0x130 ext4_sync_file+0x21d/0xfa0 vfs_fsync_range+0x13d/0x230 ext4_buffered_write_iter+0x37d/0x460 ext4_file_write_iter+0x3d5/0x1820 do_iter_readv_writev+0x211/0x3c0 do_iter_write+0x18b/0x700 vfs_iter_write+0x70/0xa0 iter_file_splice_write+0x73a/0xca0 direct_splice_actor+0x10f/0x170 splice_direct_to_actor+0x336/0x8c0 do_splice_direct+0x1b8/0x290 do_sendfile+0xb1d/0x1280 __x64_sys_sendfile64+0x1d1/0x210 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f025b055b19 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:00007f02585cb188 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007f025b168f60 RCX: 00007f025b055b19 RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000006 RBP: 00007f025b0aff6d R08: 0000000000000000 R09: 0000000000000000 R10: 00000000fffffdef R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff15e45e3f R14: 00007f02585cb300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 7664 Comm: syz-executor.4 Not tainted 6.0.0-rc2-next-20220825 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 RIP: 0010:lock_acquire+0x15a/0x530 Code: 0c 01 48 89 f8 83 e0 07 83 c0 03 38 c8 7c 08 84 c9 0f 85 7d 03 00 00 8b 92 74 09 00 00 85 d2 0f 85 c5 00 00 00 9c 8f 44 24 08 48 c7 c7 c0 db 86 84 e8 b9 f5 f7 02 41 89 e8 44 89 e1 44 89 ea RSP: 0018:ffff88806cf09590 EFLAGS: 00000046 RAX: 0000000000000007 RBX: 1ffff1100d9e12b4 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000010101 RDI: ffff8880462dbef4 RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff85af47d7 R10: fffffbfff0b5e8fa R11: 0000000000000001 R12: 0000000000000002 R13: 0000000000000000 R14: ffffffff85405660 R15: 0000000000000000 FS: 00007ff8f19ce700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000555556801c98 CR3: 000000001bb28000 CR4: 0000000000350ee0 Call Trace: perf_event_output_forward+0xa5/0x280 __perf_event_overflow+0x13f/0x3d0 perf_swevent_hrtimer+0x38a/0x400 __hrtimer_run_queues+0x1ca/0xbd0 hrtimer_interrupt+0x315/0x770 __sysvec_apic_timer_interrupt+0x144/0x500 sysvec_apic_timer_interrupt+0x3b/0xc0 asm_sysvec_apic_timer_interrupt+0x16/0x20 RIP: 0010:__sanitizer_cov_trace_pc+0xd/0x70 Code: a8 01 00 00 e8 b4 ff ff ff 31 c0 e9 3d 8c 1a 03 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 65 8b 05 e9 bf bc 7e 89 c1 48 8b 34 24 <81> e1 00 01 00 00 65 48 8b 14 25 c0 6e 02 00 a9 00 01 ff 00 74 0e RSP: 0018:ffff88806cf09c88 EFLAGS: 00000287 RAX: 0000000000000100 RBX: 0000000000000004 RCX: 0000000000000100 RDX: ffff8880462db580 RSI: ffffffff821802a7 RDI: ffff88800e4f0238 RBP: 0000000000000000 R08: 0000000000000200 R09: ffff88800e4f0237 R10: ffffed1001c9e046 R11: 0000000000000001 R12: ffff88800e4f0210 R13: ffff88800f76b248 R14: ffff88800f76b200 R15: ffff88800e4f0234 __sbq_wake_up+0x157/0x3d0 sbitmap_queue_clear+0xad/0x210 blk_mq_put_tag+0xd8/0x160 __blk_mq_free_request+0x2e0/0x380 blk_mq_free_request+0x35d/0x500 __blk_mq_end_request+0x358/0x580 scsi_end_request+0x472/0x9a0 scsi_io_completion+0xbc/0x2070 scsi_complete+0x114/0x560 blk_complete_reqs+0xb2/0xf0 __do_softirq+0x1c8/0x8d0 __irq_exit_rcu+0x11b/0x180 irq_exit_rcu+0x5/0x20 sysvec_call_function_single+0x8e/0xc0 asm_sysvec_call_function_single+0x16/0x20 RIP: 0010:__sanitizer_cov_trace_const_cmp4+0x4/0x20 Code: 84 00 00 00 00 00 48 8b 0c 24 0f b7 d6 0f b7 f7 bf 03 00 00 00 e9 bc fe ff ff 66 66 2e 0f 1f 84 00 00 00 00 00 90 48 8b 0c 24 <89> f2 89 fe bf 05 00 00 00 e9 9e fe ff ff 66 66 2e 0f 1f 84 00 00 RSP: 0018:ffff888044ac6960 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff81faabb8 RDX: 1ffff11001eed031 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000 R13: ffff88800e4af050 R14: ffff88800f768000 R15: ffff88800e4af048 blk_mq_dispatch_rq_list+0xee8/0x21d0 blk_mq_do_dispatch_sched+0x91a/0xc30 __blk_mq_sched_dispatch_requests+0x271/0x3e0 blk_mq_sched_dispatch_requests+0x106/0x190 __blk_mq_run_hw_queue+0xff/0x350 __blk_mq_delay_run_hw_queue+0x465/0x670 blk_mq_run_hw_queue+0x33b/0x490 blk_mq_sched_insert_requests+0x1d8/0x9a0 blk_mq_flush_plug_list+0x37a/0xd70 __blk_flush_plug+0x289/0x420 blk_finish_plug+0x50/0xa0 ext4_writepages+0x267c/0x3690 do_writepages+0x1b0/0x6a0 filemap_fdatawrite_wbc+0x147/0x1b0 __filemap_fdatawrite_range+0xb6/0x100 file_write_and_wait_range+0xb6/0x130 ext4_sync_file+0x21d/0xfa0 vfs_fsync_range+0x13d/0x230 ext4_buffered_write_iter+0x37d/0x460 ext4_file_write_iter+0x3d5/0x1820 do_iter_readv_writev+0x211/0x3c0 do_iter_write+0x18b/0x700 vfs_iter_write+0x70/0xa0 iter_file_splice_write+0x73a/0xca0 direct_splice_actor+0x10f/0x170 splice_direct_to_actor+0x336/0x8c0 do_splice_direct+0x1b8/0x290 do_sendfile+0xb1d/0x1280 __x64_sys_sendfile64+0x1d1/0x210 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7ff8f4458b19 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:00007ff8f19ce188 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007ff8f456bf60 RCX: 00007ff8f4458b19 RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000007 RBP: 00007ff8f44b2f6d R08: 0000000000000000 R09: 0000000000000000 R10: 00000000fffffdef R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffca9d7fbbf R14: 00007ff8f19ce300 R15: 0000000000022000 ---------------- Code disassembly (best guess): 0: c0 6e 02 00 shrb $0x0,0x2(%rsi) 4: 48 8b 80 28 14 00 00 mov 0x1428(%rax),%rax b: e9 da 90 1a 03 jmpq 0x31a90ea 10: 66 2e 0f 1f 84 00 00 nopw %cs:0x0(%rax,%rax,1) 17: 00 00 00 1a: 49 89 f1 mov %rsi,%r9 1d: 49 89 d2 mov %rdx,%r10 20: 49 89 f8 mov %rdi,%r8 23: 65 8b 05 80 c4 bc 7e mov %gs:0x7ebcc480(%rip),%eax # 0x7ebcc4aa * 2a: 89 c6 mov %eax,%esi <-- trapping instruction 2c: 81 e6 00 01 00 00 and $0x100,%esi 32: 65 48 8b 14 25 c0 6e mov %gs:0x26ec0,%rdx 39: 02 00 3b: a9 00 01 ff 00 test $0xff0100,%eax