R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd70353e7f R14: 00007fc1fb1d2300 R15: 0000000000022000
 </TASK>
======================================================
WARNING: possible circular locking dependency detected
5.17.0-rc2-next-20220202 #1 Not tainted
------------------------------------------------------
syz-executor.3/4070 is trying to acquire lock:
ffff88800d23c420 (&ctx->lock){....}-{2:2}, at: __perf_event_task_sched_out+0x519/0x1950

but task is already holding lock:
ffff88806ce37c98 (&rq->__lock){-.-.}-{2:2}, at: __schedule+0x1cf/0x2190

which lock already depends on the new lock.


the existing dependency chain (in reverse order) is:

-> #3 (&rq->__lock){-.-.}-{2:2}:
       _raw_spin_lock_nested+0x30/0x40
       raw_spin_rq_lock_nested+0x1e/0x30
       task_fork_fair+0x63/0x4d0
       sched_post_fork+0x343/0x490
       copy_process+0x5313/0x6cb0
       kernel_clone+0xe7/0xa60
       kernel_thread+0xb5/0xf0
       rest_init+0x24/0x3d0
       start_kernel+0x484/0x4a5
       secondary_startup_64_no_verify+0xd5/0xdb

-> #2 (&p->pi_lock){-.-.}-{2:2}:
       _raw_spin_lock_irqsave+0x39/0x50
       try_to_wake_up+0xa5/0x1060
       up+0x75/0xb0
       __up_console_sem+0x6e/0x80
       console_unlock+0x53e/0xae0
       do_con_write+0xc01/0x1d40
       con_write+0x21/0x40
       n_tty_write+0x416/0xfe0
       file_tty_write.constprop.0+0x529/0x910
       new_sync_write+0x437/0x660
       vfs_write+0x7d1/0xae0
       ksys_write+0x12d/0x250
       do_syscall_64+0x3b/0x90
       entry_SYSCALL_64_after_hwframe+0x44/0xae

-> #1 ((console_sem).lock){-.-.}-{2:2}:
       _raw_spin_lock_irqsave+0x39/0x50
       down_trylock+0xe/0x60
       __down_trylock_console_sem+0x3b/0xd0
       vprintk_emit+0x146/0x450
       vprintk+0x80/0x90
       _printk+0xba/0xed
       show_trace_log_lvl+0x57/0x2bb
       ex_handler_msr+0x311/0x3a0
       fixup_exception+0x1c7/0xc90
       exc_general_protection+0xed/0x2f0
       asm_exc_general_protection+0x1e/0x30
       x86_pmu_enable_all+0x132/0x3c0
       x86_pmu_enable+0x580/0xd90
       ctx_resched+0x2b0/0x390
       __perf_install_in_context+0x285/0x310
       remote_function+0x125/0x1b0
       generic_exec_single+0x203/0x300
       smp_call_function_single+0x189/0x460
       task_function_call+0xe5/0x170
       perf_install_in_context+0x2cb/0x550
       __do_sys_perf_event_open+0x1bf0/0x3040
       do_syscall_64+0x3b/0x90
       entry_SYSCALL_64_after_hwframe+0x44/0xae

-> #0 (&ctx->lock){....}-{2:2}:
       __lock_acquire+0x2c2f/0x6120
       lock_acquire+0x1a2/0x4d0
       _raw_spin_lock+0x2a/0x40
       __perf_event_task_sched_out+0x519/0x1950
       __schedule+0xead/0x2190
       preempt_schedule_common+0x45/0xc0
       __cond_resched+0x13/0x20
       __mutex_lock+0xa3/0x1480
       __do_sys_perf_event_open+0x1d13/0x3040
       do_syscall_64+0x3b/0x90
       entry_SYSCALL_64_after_hwframe+0x44/0xae

other info that might help us debug this:

Chain exists of:
  &ctx->lock --> &p->pi_lock --> &rq->__lock

 Possible unsafe locking scenario:

       CPU0                    CPU1
       ----                    ----
  lock(&rq->__lock);
                               lock(&p->pi_lock);
                               lock(&rq->__lock);
  lock(&ctx->lock);

 *** DEADLOCK ***

1 lock held by syz-executor.3/4070:
 #0: ffff88806ce37c98 (&rq->__lock){-.-.}-{2:2}, at: __schedule+0x1cf/0x2190

stack backtrace:
CPU: 0 PID: 4070 Comm: syz-executor.3 Not tainted 5.17.0-rc2-next-20220202 #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+0x25f/0x2e0
 __lock_acquire+0x2c2f/0x6120
 lock_acquire+0x1a2/0x4d0
 _raw_spin_lock+0x2a/0x40
 __perf_event_task_sched_out+0x519/0x1950
 __schedule+0xead/0x2190
 preempt_schedule_common+0x45/0xc0
 __cond_resched+0x13/0x20
 __mutex_lock+0xa3/0x1480
 __do_sys_perf_event_open+0x1d13/0x3040
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fc1fdc5cb19
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:00007fc1fb1d2188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007fc1fdd6ff60 RCX: 00007fc1fdc5cb19
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000000
RBP: 00007fc1fdcb6f6d R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd70353e7f R14: 00007fc1fb1d2300 R15: 0000000000022000
 </TASK>
Call Trace:
 <TASK>
 x86_pmu_stop+0x149/0x330
 x86_pmu_del+0x1be/0x610
 event_sched_out+0x2ed/0xaf0
 group_sched_out.part.0+0x115/0x360
 ctx_sched_out+0x7db/0xa90
 __perf_event_task_sched_out+0x6ae/0x1950
 __schedule+0xead/0x2190
 preempt_schedule_common+0x45/0xc0
 __cond_resched+0x13/0x20
 __mutex_lock+0xa3/0x1480
 __do_sys_perf_event_open+0x1d13/0x3040
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fc1fdc5cb19
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:00007fc1fb1d2188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007fc1fdd6ff60 RCX: 00007fc1fdc5cb19
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000000
RBP: 00007fc1fdcb6f6d R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd70353e7f R14: 00007fc1fb1d2300 R15: 0000000000022000
 </TASK>
loop2: detected capacity change from 0 to 4
EXT4-fs (loop2): couldn't mount as ext3 due to feature incompatibilities
loop2: detected capacity change from 0 to 4
EXT4-fs (loop2): couldn't mount as ext3 due to feature incompatibilities
Call Trace:
 <TASK>
 x86_pmu_enable+0x580/0xd90
 ctx_resched+0x2b0/0x390
 __perf_install_in_context+0x285/0x310
 remote_function+0x125/0x1b0
 generic_exec_single+0x203/0x300
 smp_call_function_single+0x189/0x460
 task_function_call+0xe5/0x170
 perf_install_in_context+0x2cb/0x550
 __do_sys_perf_event_open+0x1bf0/0x3040
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fc1fdc5cb19
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:00007fc1fb1b1188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007fc1fdd70020 RCX: 00007fc1fdc5cb19
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000000
RBP: 00007fc1fdcb6f6d R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd70353e7f R14: 00007fc1fb1b1300 R15: 0000000000022000
 </TASK>
Call Trace:
 <TASK>
 x86_pmu_stop+0x149/0x330
 x86_pmu_del+0x1be/0x610
 event_sched_out+0x2ed/0xaf0
 group_sched_out.part.0+0x115/0x360
 ctx_sched_out+0x7db/0xa90
 __perf_event_task_sched_out+0x6ae/0x1950
 __schedule+0xead/0x2190
 preempt_schedule_common+0x45/0xc0
 __cond_resched+0x13/0x20
 __mutex_lock+0xa3/0x1480
 __do_sys_perf_event_open+0x1d13/0x3040
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fc1fdc5cb19
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:00007fc1fb1b1188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007fc1fdd70020 RCX: 00007fc1fdc5cb19
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000000
RBP: 00007fc1fdcb6f6d R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd70353e7f R14: 00007fc1fb1b1300 R15: 0000000000022000
 </TASK>
Call Trace:
 <TASK>
 x86_pmu_enable+0x580/0xd90
 __perf_event_task_sched_in+0x5e4/0x770
 finish_task_switch.isra.0+0x45c/0x870
 __schedule+0x88a/0x2190
 preempt_schedule_common+0x45/0xc0
 __cond_resched+0x13/0x20
 __mutex_lock+0xa3/0x1480
 __do_sys_perf_event_open+0x1d13/0x3040
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fc1fdc5cb19
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:00007fc1fb1b1188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007fc1fdd70020 RCX: 00007fc1fdc5cb19
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000000
RBP: 00007fc1fdcb6f6d R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd70353e7f R14: 00007fc1fb1b1300 R15: 0000000000022000
 </TASK>
Call Trace:
 <TASK>
 x86_pmu_stop+0x149/0x330
 x86_pmu_del+0x1be/0x610
 event_sched_out+0x2ed/0xaf0
 group_sched_out.part.0+0x115/0x360
 ctx_sched_out+0x7db/0xa90
 __perf_event_task_sched_out+0x6ae/0x1950
 __schedule+0xead/0x2190
 preempt_schedule_common+0x45/0xc0
 __cond_resched+0x13/0x20
 __mutex_lock+0xa3/0x1480
 __do_sys_perf_event_open+0x1d13/0x3040
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fc1fdc5cb19
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:00007fc1fb1b1188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007fc1fdd70020 RCX: 00007fc1fdc5cb19
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000000
RBP: 00007fc1fdcb6f6d R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd70353e7f R14: 00007fc1fb1b1300 R15: 0000000000022000
 </TASK>
Call Trace:
 <TASK>
 x86_pmu_enable+0x580/0xd90
 __perf_event_task_sched_in+0x5e4/0x770
 finish_task_switch.isra.0+0x45c/0x870
 __schedule+0x88a/0x2190
 preempt_schedule_common+0x45/0xc0
 __cond_resched+0x13/0x20
 __mutex_lock+0xa3/0x1480
 __do_sys_perf_event_open+0x1d13/0x3040
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fc1fdc5cb19
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:00007fc1fb1b1188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007fc1fdd70020 RCX: 00007fc1fdc5cb19
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000000
RBP: 00007fc1fdcb6f6d R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd70353e7f R14: 00007fc1fb1b1300 R15: 0000000000022000
 </TASK>
Call Trace:
 <TASK>
 x86_pmu_stop+0x149/0x330
 x86_pmu_del+0x1be/0x610
 event_sched_out+0x2ed/0xaf0
 group_sched_out.part.0+0x115/0x360
 ctx_sched_out+0x7db/0xa90
 __perf_event_task_sched_out+0x6ae/0x1950
 __schedule+0xead/0x2190
 preempt_schedule_common+0x45/0xc0
 __cond_resched+0x13/0x20
 __mutex_lock+0xa3/0x1480
 __do_sys_perf_event_open+0x1d13/0x3040
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fc1fdc5cb19
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:00007fc1fb1b1188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007fc1fdd70020 RCX: 00007fc1fdc5cb19
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000000
RBP: 00007fc1fdcb6f6d R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd70353e7f R14: 00007fc1fb1b1300 R15: 0000000000022000
 </TASK>
Call Trace:
 <TASK>
 x86_pmu_enable+0x580/0xd90
 __perf_event_task_sched_in+0x5e4/0x770
 finish_task_switch.isra.0+0x45c/0x870
 __schedule+0x88a/0x2190
 preempt_schedule_common+0x45/0xc0
 __cond_resched+0x13/0x20
 __mutex_lock+0xa3/0x1480
 __do_sys_perf_event_open+0x1d13/0x3040
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fc1fdc5cb19
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:00007fc1fb1b1188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007fc1fdd70020 RCX: 00007fc1fdc5cb19
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000000
RBP: 00007fc1fdcb6f6d R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd70353e7f R14: 00007fc1fb1b1300 R15: 0000000000022000
 </TASK>
Call Trace:
 <TASK>
 x86_pmu_stop+0x149/0x330
 x86_pmu_del+0x1be/0x610
 event_sched_out+0x2ed/0xaf0
 group_sched_out.part.0+0x115/0x360
 ctx_sched_out+0x7db/0xa90
 __perf_event_task_sched_out+0x6ae/0x1950
 __schedule+0xead/0x2190
 preempt_schedule_common+0x45/0xc0
 __cond_resched+0x13/0x20
 __mutex_lock+0xa3/0x1480
 __do_sys_perf_event_open+0x1d13/0x3040
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fc1fdc5cb19
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:00007fc1fb1b1188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007fc1fdd70020 RCX: 00007fc1fdc5cb19
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000000
RBP: 00007fc1fdcb6f6d R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd70353e7f R14: 00007fc1fb1b1300 R15: 0000000000022000
 </TASK>
Call Trace:
 <TASK>
 x86_pmu_enable+0x580/0xd90
 __perf_event_task_sched_in+0x5e4/0x770
 finish_task_switch.isra.0+0x45c/0x870
 __schedule+0x88a/0x2190
 preempt_schedule_common+0x45/0xc0
 __cond_resched+0x13/0x20
 __mutex_lock+0xa3/0x1480
 __do_sys_perf_event_open+0x1d13/0x3040
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fc1fdc5cb19
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:00007fc1fb1b1188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007fc1fdd70020 RCX: 00007fc1fdc5cb19
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000000
RBP: 00007fc1fdcb6f6d R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd70353e7f R14: 00007fc1fb1b1300 R15: 0000000000022000
 </TASK>
Call Trace:
 <TASK>
 x86_pmu_stop+0x149/0x330
 x86_pmu_del+0x1be/0x610
 event_sched_out+0x2ed/0xaf0
 group_sched_out.part.0+0x115/0x360
 ctx_sched_out+0x7db/0xa90
 __perf_event_task_sched_out+0x6ae/0x1950
 __schedule+0xead/0x2190
 preempt_schedule_common+0x45/0xc0
 __cond_resched+0x13/0x20
 __mutex_lock+0xa3/0x1480
 __do_sys_perf_event_open+0x1d13/0x3040
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fc1fdc5cb19
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:00007fc1fb1b1188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007fc1fdd70020 RCX: 00007fc1fdc5cb19
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000000
RBP: 00007fc1fdcb6f6d R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd70353e7f R14: 00007fc1fb1b1300 R15: 0000000000022000
 </TASK>
Call Trace:
 <TASK>
 x86_pmu_enable+0x580/0xd90
 __perf_event_task_sched_in+0x5e4/0x770
 finish_task_switch.isra.0+0x45c/0x870
 __schedule+0x88a/0x2190
 preempt_schedule_common+0x45/0xc0
 __cond_resched+0x13/0x20
 __mutex_lock+0xa3/0x1480
 __do_sys_perf_event_open+0x1d13/0x3040
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fc1fdc5cb19
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:00007fc1fb1b1188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007fc1fdd70020 RCX: 00007fc1fdc5cb19
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000000
RBP: 00007fc1fdcb6f6d R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd70353e7f R14: 00007fc1fb1b1300 R15: 0000000000022000
 </TASK>
Call Trace:
 <TASK>
 x86_pmu_stop+0x149/0x330
 x86_pmu_del+0x1be/0x610
 event_sched_out+0x2ed/0xaf0
 group_sched_out.part.0+0x115/0x360
 ctx_sched_out+0x7db/0xa90
 __perf_event_task_sched_out+0x6ae/0x1950
 __schedule+0xead/0x2190
 preempt_schedule_common+0x45/0xc0
 __cond_resched+0x13/0x20
 __mutex_lock+0xa3/0x1480
 __do_sys_perf_event_open+0x1d13/0x3040
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fc1fdc5cb19
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:00007fc1fb1b1188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007fc1fdd70020 RCX: 00007fc1fdc5cb19
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000000
RBP: 00007fc1fdcb6f6d R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd70353e7f R14: 00007fc1fb1b1300 R15: 0000000000022000
 </TASK>
Call Trace:
 <TASK>
 x86_pmu_enable+0x580/0xd90
 ctx_resched+0x2b0/0x390
 __perf_install_in_context+0x285/0x310
 remote_function+0x125/0x1b0
 generic_exec_single+0x203/0x300
 smp_call_function_single+0x189/0x460
loop2: detected capacity change from 0 to 4
 task_function_call+0xe5/0x170
 perf_install_in_context+0x2cb/0x550
 __do_sys_perf_event_open+0x1bf0/0x3040
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fc1fdc5cb19
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
EXT4-fs (loop2): couldn't mount as ext3 due to feature incompatibilities
RSP: 002b:00007fc1fb1d2188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007fc1fdd6ff60 RCX: 00007fc1fdc5cb19
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000000
RBP: 00007fc1fdcb6f6d R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd70353e7f R14: 00007fc1fb1d2300 R15: 0000000000022000
 </TASK>
Call Trace:
 <TASK>
 x86_pmu_stop+0x149/0x330
SELinux: security_context_str_to_sid(staff_u) failed for (dev ?, type ?) errno=-22
 x86_pmu_del+0x1be/0x610
 event_sched_out+0x2ed/0xaf0
 group_sched_out.part.0+0x115/0x360
 ctx_sched_out+0x7db/0xa90
 __perf_event_task_sched_out+0x6ae/0x1950
 __schedule+0xead/0x2190
 preempt_schedule_common+0x45/0xc0
 __cond_resched+0x13/0x20
 __mutex_lock+0xa3/0x1480
 __do_sys_perf_event_open+0x1d13/0x3040
 do_syscall_64+0x3b/0x90
SELinux: security_context_str_to_sid(staff_u) failed for (dev ?, type ?) errno=-22
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fc1fdc5cb19
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:00007fc1fb1d2188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007fc1fdd6ff60 RCX: 00007fc1fdc5cb19
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000000
RBP: 00007fc1fdcb6f6d R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd70353e7f R14: 00007fc1fb1d2300 R15: 0000000000022000
 </TASK>
loop6: detected capacity change from 0 to 127
SELinux: security_context_str_to_sid(user_u) failed for (dev ?, type ?) errno=-22
ext3: Unknown parameter 'euid>00000000000000000000'