R10: 0000000000000000 R11: 0000000000000246 R12: 00007fe98828602c R13: 00007ffd6609282f R14: 00007fe9856c7300 R15: 0000000000022000 Call Trace: ====================================================== WARNING: possible circular locking dependency detected 5.16.0-rc6-next-20211224 #1 Not tainted ------------------------------------------------------ syz-executor.7/5876 is trying to acquire lock: ffffffff851f5118 ((console_sem).lock){-.-.}-{2:2}, at: down_trylock+0xe/0x60 kernel/locking/semaphore.c:138 but task is already holding lock: ffff88804039d020 (&ctx->lock){-...}-{2:2}, at: __perf_install_in_context+0x12d/0x310 kernel/events/core.c:2784 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #3 (&ctx->lock){-...}-{2:2}: __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline] _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:154 perf_event_context_sched_out kernel/events/core.c:3493 [inline] __perf_event_task_sched_out+0x519/0x1920 kernel/events/core.c:3601 perf_event_task_sched_out include/linux/perf_event.h:1245 [inline] prepare_task_switch kernel/sched/core.c:4796 [inline] context_switch kernel/sched/core.c:4938 [inline] __schedule+0xead/0x2190 kernel/sched/core.c:6296 schedule+0xd2/0x260 kernel/sched/core.c:6369 freezable_schedule include/linux/freezer.h:172 [inline] futex_wait_queue+0x144/0x3b0 kernel/futex/waitwake.c:355 futex_wait+0x2c9/0x660 kernel/futex/waitwake.c:656 do_futex+0x2fb/0x380 kernel/futex/syscalls.c:106 __do_sys_futex kernel/futex/syscalls.c:183 [inline] __se_sys_futex kernel/futex/syscalls.c:164 [inline] __x64_sys_futex+0x1c6/0x4c0 kernel/futex/syscalls.c:164 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0x90 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae -> #2 (&rq->__lock){-.-.}-{2:2}: _raw_spin_lock_nested+0x30/0x40 kernel/locking/spinlock.c:378 raw_spin_rq_lock_nested+0x1e/0x30 kernel/sched/core.c:489 raw_spin_rq_lock kernel/sched/sched.h:1318 [inline] rq_lock kernel/sched/sched.h:1616 [inline] task_fork_fair+0x63/0x4d0 kernel/sched/fair.c:11146 sched_post_fork+0x343/0x490 kernel/sched/core.c:4462 copy_process+0x5353/0x6e20 kernel/fork.c:2394 kernel_clone+0xe7/0xa60 kernel/fork.c:2620 kernel_thread+0xae/0xf0 kernel/fork.c:2672 rest_init+0x24/0x3d0 init/main.c:692 start_kernel+0x484/0x4a5 init/main.c:1141 secondary_startup_64_no_verify+0xd5/0xdb -> #1 (&p->pi_lock){-.-.}-{2:2}: __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x39/0x50 kernel/locking/spinlock.c:162 try_to_wake_up+0xac/0x14c0 kernel/sched/core.c:4017 up+0x75/0xb0 kernel/locking/semaphore.c:190 __up_console_sem+0x6e/0x80 kernel/printk/printk.c:255 console_unlock+0x53e/0xae0 kernel/printk/printk.c:2730 vprintk_emit+0x198/0x450 kernel/printk/printk.c:2248 vprintk+0x80/0x90 kernel/printk/printk_safe.c:50 _printk+0xba/0xed kernel/printk/printk.c:2269 blktrace: Concurrent blktraces are not allowed on sg0 kauditd_printk_skb kernel/audit.c:538 [inline] kauditd_hold_skb.cold+0x41/0x50 kernel/audit.c:571 kauditd_send_queue kernel/audit.c:734 [inline] kauditd_thread+0x86b/0x1080 kernel/audit.c:858 kthread+0x2f0/0x3a0 kernel/kthread.c:377 ret_from_fork+0x22/0x30 arch/x86/entry/entry_64.S:295 -> #0 ((console_sem).lock){-.-.}-{2:2}: check_prev_add kernel/locking/lockdep.c:3063 [inline] check_prevs_add kernel/locking/lockdep.c:3186 [inline] validate_chain kernel/locking/lockdep.c:3801 [inline] __lock_acquire+0x2a14/0x5b70 kernel/locking/lockdep.c:5027 lock_acquire kernel/locking/lockdep.c:5639 [inline] lock_acquire+0x1a2/0x4d0 kernel/locking/lockdep.c:5604 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x39/0x50 kernel/locking/spinlock.c:162 down_trylock+0xe/0x60 kernel/locking/semaphore.c:138 __down_trylock_console_sem+0x3b/0xd0 kernel/printk/printk.c:238 console_trylock kernel/printk/printk.c:2545 [inline] console_trylock_spinning kernel/printk/printk.c:1846 [inline] vprintk_emit+0x146/0x450 kernel/printk/printk.c:2247 vprintk+0x80/0x90 kernel/printk/printk_safe.c:50 _printk+0xba/0xed kernel/printk/printk.c:2269 show_trace_log_lvl+0x57/0x2bb arch/x86/kernel/dumpstack.c:195 ex_handler_msr+0x311/0x3a0 arch/x86/mm/extable.c:101 fixup_exception+0x1ca/0xdd0 arch/x86/mm/extable.c:212 __exc_general_protection arch/x86/kernel/traps.c:601 [inline] exc_general_protection+0xed/0x2f0 arch/x86/kernel/traps.c:562 asm_exc_general_protection+0x1e/0x30 arch/x86/include/asm/idtentry.h:562 wrmsrl arch/x86/include/asm/msr.h:271 [inline] __x86_pmu_enable_event arch/x86/events/perf_event.h:1120 [inline] x86_pmu_enable_all+0x2f7/0x3c0 arch/x86/events/core.c:743 x86_pmu_enable+0x580/0xd90 arch/x86/events/core.c:1350 perf_pmu_enable kernel/events/core.c:1207 [inline] perf_pmu_enable kernel/events/core.c:1203 [inline] ctx_resched+0x2b0/0x390 kernel/events/core.c:2754 __perf_install_in_context+0x285/0x310 kernel/events/core.c:2821 remote_function kernel/events/core.c:91 [inline] remote_function+0x125/0x1b0 kernel/events/core.c:71 generic_exec_single+0x203/0x300 kernel/smp.c:518 smp_call_function_single+0x189/0x460 kernel/smp.c:755 task_function_call+0xe5/0x170 kernel/events/core.c:119 perf_install_in_context+0x2cb/0x550 kernel/events/core.c:2922 __do_sys_perf_event_open+0x1bf0/0x3040 kernel/events/core.c:12433 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0x90 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae 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 *** 4 locks held by syz-executor.7/5876: #0: ffff88801d7df1e0 (&sig->exec_update_lock){++++}-{3:3}, at: __do_sys_perf_event_open+0x1023/0x3040 kernel/events/core.c:12273 #1: ffff88804039d0b0 (&ctx->mutex){+.+.}-{3:3}, at: __do_sys_perf_event_open+0x17cd/0x3040 kernel/events/core.c:12327 #2: ffff88806cf3ee20 (&cpuctx_lock){-.-.}-{2:2}, at: __perf_install_in_context+0xf4/0x310 kernel/events/core.c:2782 #3: ffff88804039d020 (&ctx->lock){-...}-{2:2}, at: __perf_install_in_context+0x12d/0x310 kernel/events/core.c:2784 stack backtrace: CPU: 1 PID: 5876 Comm: syz-executor.7 Not tainted 5.16.0-rc6-next-20211224 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x8b/0xb3 lib/dump_stack.c:106 check_noncircular+0x25f/0x2e0 kernel/locking/lockdep.c:2143 check_prev_add kernel/locking/lockdep.c:3063 [inline] check_prevs_add kernel/locking/lockdep.c:3186 [inline] validate_chain kernel/locking/lockdep.c:3801 [inline] __lock_acquire+0x2a14/0x5b70 kernel/locking/lockdep.c:5027 lock_acquire kernel/locking/lockdep.c:5639 [inline] lock_acquire+0x1a2/0x4d0 kernel/locking/lockdep.c:5604 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x39/0x50 kernel/locking/spinlock.c:162 down_trylock+0xe/0x60 kernel/locking/semaphore.c:138 __down_trylock_console_sem+0x3b/0xd0 kernel/printk/printk.c:238 console_trylock kernel/printk/printk.c:2545 [inline] console_trylock_spinning kernel/printk/printk.c:1846 [inline] vprintk_emit+0x146/0x450 kernel/printk/printk.c:2247 vprintk+0x80/0x90 kernel/printk/printk_safe.c:50 _printk+0xba/0xed kernel/printk/printk.c:2269 show_trace_log_lvl+0x57/0x2bb arch/x86/kernel/dumpstack.c:195 ex_handler_msr+0x311/0x3a0 arch/x86/mm/extable.c:101 fixup_exception+0x1ca/0xdd0 arch/x86/mm/extable.c:212 __exc_general_protection arch/x86/kernel/traps.c:601 [inline] exc_general_protection+0xed/0x2f0 arch/x86/kernel/traps.c:562 asm_exc_general_protection+0x1e/0x30 arch/x86/include/asm/idtentry.h:562 RIP: 0010:__wrmsr arch/x86/include/asm/msr.h:103 [inline] RIP: 0010:native_write_msr arch/x86/include/asm/msr.h:154 [inline] RIP: 0010:wrmsrl arch/x86/include/asm/msr.h:271 [inline] RIP: 0010:__x86_pmu_enable_event arch/x86/events/perf_event.h:1120 [inline] RIP: 0010:x86_pmu_enable_all+0x2f7/0x3c0 arch/x86/events/core.c:743 Code: 00 8b 7c 24 1c 48 8b 44 24 10 0f ae e8 ff d0 89 44 24 10 e8 ab 3e 42 00 4c 89 fa 8b 4c 24 08 4c 89 f8 03 4c 24 10 48 c1 ea 20 <0f> 30 66 90 e8 90 3e 42 00 e9 cc fd ff ff 48 83 c4 20 5b 5d 41 5c RSP: 0018:ffff888035a8f968 EFLAGS: 00010016 RAX: 0000000f004000ff RBX: ffff888040a861c0 RCX: 00000000c0010202 RDX: 000000000000000f RSI: ffffffff8100e045 RDI: 0000000000000003 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000001 R10: ffffffff81015b2d R11: 0000000000000000 R12: dffffc0000000000 R13: ffff88806cf21c20 R14: ffff88806cf21e20 R15: 0000000f004000ff x86_pmu_enable+0x580/0xd90 arch/x86/events/core.c:1350 perf_pmu_enable kernel/events/core.c:1207 [inline] perf_pmu_enable kernel/events/core.c:1203 [inline] ctx_resched+0x2b0/0x390 kernel/events/core.c:2754 __perf_install_in_context+0x285/0x310 kernel/events/core.c:2821 remote_function kernel/events/core.c:91 [inline] remote_function+0x125/0x1b0 kernel/events/core.c:71 generic_exec_single+0x203/0x300 kernel/smp.c:518 smp_call_function_single+0x189/0x460 kernel/smp.c:755 task_function_call+0xe5/0x170 kernel/events/core.c:119 perf_install_in_context+0x2cb/0x550 kernel/events/core.c:2922 __do_sys_perf_event_open+0x1bf0/0x3040 kernel/events/core.c:12433 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0x90 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7efd0da07b19 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:00007efd0af5c188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 00007efd0db1b020 RCX: 00007efd0da07b19 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000040 RBP: 00007efd0da61f6d R08: 0000000000000000 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff2518759f R14: 00007efd0af5c300 R15: 0000000000022000 x86_pmu_enable+0x580/0xd90 arch/x86/events/core.c:1350 perf_pmu_enable kernel/events/core.c:1207 [inline] perf_pmu_enable kernel/events/core.c:1203 [inline] ctx_resched+0x2b0/0x390 kernel/events/core.c:2754 __perf_install_in_context+0x285/0x310 kernel/events/core.c:2821 remote_function kernel/events/core.c:91 [inline] remote_function+0x125/0x1b0 kernel/events/core.c:71 generic_exec_single+0x203/0x300 kernel/smp.c:518 smp_call_function_single+0x189/0x460 kernel/smp.c:755 task_function_call+0xe5/0x170 kernel/events/core.c:119 perf_install_in_context+0x2cb/0x550 kernel/events/core.c:2922 __do_sys_perf_event_open+0x1bf0/0x3040 kernel/events/core.c:12433 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0x90 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7efd0da07b19 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:00007efd0af5c188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 00007efd0db1b020 RCX: 00007efd0da07b19 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000040 RBP: 00007efd0da61f6d R08: 0000000000000000 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff2518759f R14: 00007efd0af5c300 R15: 0000000000022000 Call Trace: x86_pmu_enable+0x580/0xd90 arch/x86/events/core.c:1350 perf_pmu_enable kernel/events/core.c:1207 [inline] perf_pmu_enable kernel/events/core.c:1203 [inline] perf_event_context_sched_out kernel/events/core.c:3500 [inline] __perf_event_task_sched_out+0x764/0x1920 kernel/events/core.c:3601 perf_event_task_sched_out include/linux/perf_event.h:1245 [inline] prepare_task_switch kernel/sched/core.c:4796 [inline] context_switch kernel/sched/core.c:4938 [inline] __schedule+0xead/0x2190 kernel/sched/core.c:6296 preempt_schedule_common+0x45/0xc0 kernel/sched/core.c:6462 __cond_resched+0x13/0x20 kernel/sched/core.c:8175 might_resched include/linux/kernel.h:110 [inline] __mutex_lock_common kernel/locking/mutex.c:577 [inline] __mutex_lock+0xa3/0x1480 kernel/locking/mutex.c:733 __do_sys_perf_event_open+0x1d13/0x3040 kernel/events/core.c:12445 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0x90 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7efd0da07b19 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:00007efd0af5c188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 00007efd0db1b020 RCX: 00007efd0da07b19 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000040 RBP: 00007efd0da61f6d R08: 0000000000000000 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff2518759f R14: 00007efd0af5c300 R15: 0000000000022000 Call Trace: x86_pmu_enable+0x580/0xd90 arch/x86/events/core.c:1350 perf_pmu_enable kernel/events/core.c:1207 [inline] perf_pmu_enable kernel/events/core.c:1203 [inline] ctx_resched+0x2b0/0x390 kernel/events/core.c:2754 __perf_install_in_context+0x285/0x310 kernel/events/core.c:2821 remote_function kernel/events/core.c:91 [inline] remote_function+0x125/0x1b0 kernel/events/core.c:71 generic_exec_single+0x203/0x300 kernel/smp.c:518 smp_call_function_single+0x189/0x460 kernel/smp.c:755 cpu_function_call kernel/events/core.c:152 [inline] perf_install_in_context+0x4a3/0x550 kernel/events/core.c:2880 __do_sys_perf_event_open+0x1bf0/0x3040 kernel/events/core.c:12433 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0x90 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f3b63b39b19 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:00007f3b610af188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 00007f3b63c4cf60 RCX: 00007f3b63b39b19 RDX: 0000000000000001 RSI: ffffffffffffffff RDI: 0000000020000180 RBP: 00007f3b63b93f6d R08: 0000000000000000 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd0c3c2b1f R14: 00007f3b610af300 R15: 0000000000022000 Call Trace: x86_pmu_enable+0x580/0xd90 arch/x86/events/core.c:1350 perf_pmu_enable kernel/events/core.c:1207 [inline] perf_pmu_enable kernel/events/core.c:1203 [inline] ctx_resched+0x2b0/0x390 kernel/events/core.c:2754 __perf_install_in_context+0x285/0x310 kernel/events/core.c:2821 remote_function kernel/events/core.c:91 [inline] remote_function+0x125/0x1b0 kernel/events/core.c:71 flush_smp_call_function_queue+0x1df/0x610 kernel/smp.c:628 __sysvec_call_function_single+0x92/0x3a0 arch/x86/kernel/smp.c:248 sysvec_call_function_single+0x89/0xc0 arch/x86/kernel/smp.c:243 asm_sysvec_call_function_single+0x12/0x20 arch/x86/include/asm/idtentry.h:646 RIP: 0010:ext4_chksum fs/ext4/ext4.h:2454 [inline] RIP: 0010:ext4_inode_csum+0x301/0x8f0 fs/ext4/inode.c:65 Code: 04 0f 85 b5 03 00 00 e8 4d ad 9b ff 48 8b 04 24 ba 02 00 00 00 4c 89 ff 49 8d 74 24 7e 48 89 44 24 70 8b 44 24 18 89 44 24 78 1a 9f 44 00 31 ff 89 c6 89 04 24 e8 2e af 9b ff 8b 04 24 85 c0 RSP: 0018:ffff888041f175f8 EFLAGS: 00000293 RAX: 0000000017de5654 RBX: ffff88801f954750 RCX: 0000000000000000 RDX: 0000000000000002 RSI: ffff88803fe9fc7e RDI: ffff888041f17668 RBP: ffff88801f9544b0 R08: 0000000000000004 R09: 00000000f3cb2fa4 R10: ffffffff81a77191 R11: 0000000000000000 R12: ffff88803fe9fc00 R13: ffff88800fa9c000 R14: ffff88800fa9c740 R15: ffff888041f17668 ext4_inode_csum_set fs/ext4/inode.c:116 [inline] ext4_inode_csum_set+0x169/0x360 fs/ext4/inode.c:106 ext4_fill_raw_inode+0x11ad/0x1e90 fs/ext4/inode.c:4384 ext4_do_update_inode fs/ext4/inode.c:5101 [inline] ext4_mark_iloc_dirty+0x587/0x1cb0 fs/ext4/inode.c:5701 ext4_xattr_set_handle+0xb04/0x14c0 fs/ext4/xattr.c:2402 ext4_initxattrs+0xb5/0x120 fs/ext4/xattr_security.c:44 security_inode_init_security+0x1a7/0x350 security/security.c:1092 __ext4_new_inode+0x39c8/0x5610 fs/ext4/ialloc.c:1325 ext4_symlink+0x453/0xc80 fs/ext4/namei.c:3293 vfs_symlink fs/namei.c:4299 [inline] vfs_symlink+0x10e/0x2d0 fs/namei.c:4284 do_symlinkat+0x144/0x2a0 fs/namei.c:4328 __do_sys_symlink fs/namei.c:4350 [inline] __se_sys_symlink fs/namei.c:4348 [inline] __x64_sys_symlink+0x75/0x90 fs/namei.c:4348 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0x90 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f330cb29427 Code: 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 58 00 00 00 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:00007ffd53d2e0a8 EFLAGS: 00000202 ORIG_RAX: 0000000000000058 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f330cb29427 RDX: 00007ffd53d2e183 RSI: 00007f330cb8402f RDI: 00007ffd53d2e170 RBP: 0000000000000000 R08: 0000000000000000 R09: 00007ffd53d2df40 R10: 00007ffd53d2ddf7 R11: 0000000000000202 R12: 0000000000000001 R13: 0000000000000001 R14: 0000000000000001 R15: 00007ffd53d2e170 Call Trace: x86_pmu_enable+0x580/0xd90 arch/x86/events/core.c:1350 perf_pmu_enable kernel/events/core.c:1207 [inline] perf_pmu_enable kernel/events/core.c:1203 [inline] ctx_resched+0x2b0/0x390 kernel/events/core.c:2754 __perf_install_in_context+0x285/0x310 kernel/events/core.c:2821 remote_function kernel/events/core.c:91 [inline] remote_function+0x125/0x1b0 kernel/events/core.c:71 generic_exec_single+0x203/0x300 kernel/smp.c:518 smp_call_function_single+0x189/0x460 kernel/smp.c:755 task_function_call+0xe5/0x170 kernel/events/core.c:119 perf_install_in_context+0x2cb/0x550 kernel/events/core.c:2922 __do_sys_perf_event_open+0x1bf0/0x3040 kernel/events/core.c:12433 ---------------- Code disassembly (best guess): 0: 00 8b 7c 24 1c 48 add %cl,0x481c247c(%rbx) 6: 8b 44 24 10 mov 0x10(%rsp),%eax a: 0f ae e8 lfence d: ff d0 callq *%rax f: 89 44 24 10 mov %eax,0x10(%rsp) 13: e8 ab 3e 42 00 callq 0x423ec3 18: 4c 89 fa mov %r15,%rdx 1b: 8b 4c 24 08 mov 0x8(%rsp),%ecx 1f: 4c 89 f8 mov %r15,%rax 22: 03 4c 24 10 add 0x10(%rsp),%ecx 26: 48 c1 ea 20 shr $0x20,%rdx * 2a: 0f 30 wrmsr <-- trapping instruction 2c: 66 90 xchg %ax,%ax 2e: e8 90 3e 42 00 callq 0x423ec3 33: e9 cc fd ff ff jmpq 0xfffffe04 38: 48 83 c4 20 add $0x20,%rsp 3c: 5b pop %rbx 3d: 5d pop %rbp 3e: 41 5c pop %r12