Hello, When using Healer to fuzz the latest Linux kernel, the following crash was triggered. HEAD commit: 4b93c544e90e-thunderbolt: test: split up test cases git tree: upstream console output: https://drive.google.com/file/d/1Gy99NMo9JxZF6dHPdxnnb91n_jPJUQnA/view?usp=sharing kernel config: https://drive.google.com/file/d/1c0u2EeRDhRO-ZCxr9MP2VvAtJd6kfg-p/view?usp=sharing Sorry, I don't have a reproducer for this crash, hope the symbolized report can help. If you fix this issue, please add the following tag to the commit: Reported-by: Hao Sun <sunhao.th@xxxxxxxxx> Call Trace: x86_pmu_enable+0x453/0xd50 arch/x86/events/core.c:1346 perf_pmu_enable kernel/events/core.c:1207 [inline] perf_pmu_enable+0xcf/0x120 kernel/events/core.c:1203 __perf_install_in_context+0x68e/0x9f0 kernel/events/core.c:2817 remote_function kernel/events/core.c:91 [inline] remote_function+0x115/0x1a0 kernel/events/core.c:71 generic_exec_single kernel/smp.c:518 [inline] generic_exec_single+0x1fe/0x300 kernel/smp.c:504 smp_call_function_single+0x186/0x4b0 kernel/smp.c:755 task_function_call+0xd9/0x160 kernel/events/core.c:119 perf_install_in_context+0x2cb/0x550 kernel/events/core.c:2918 __do_sys_perf_event_open+0x1c7c/0x2de0 kernel/events/core.c:12353 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4739cd Code: 02 b8 ff ff ff ff c3 66 0f 1f 44 00 00 f3 0f 1e fa 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:00007fb5e3f21c58 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 000000000059c0a0 RCX: 00000000004739cd RDX: fbffffffffffffff RSI: 0000000000000000 RDI: 0000000020000040 RBP: 00000000004ebd80 R08: 0000000000000009 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 000000000059c0a0 R13: 00007ffcc97e6abf R14: 00007ffcc97e6c60 R15: 00007fb5e3f21dc0 ====================================================== WARNING: possible circular locking dependency detected 5.14.0+ #1 Not tainted ------------------------------------------------------ syz-executor/9146 is trying to acquire lock: ffff88801d635420 (&ctx->lock){....}-{2:2}, at: perf_event_context_sched_out kernel/events/core.c:3489 [inline] ffff88801d635420 (&ctx->lock){....}-{2:2}, at: __perf_event_task_sched_out+0x6e8/0x18d0 kernel/events/core.c:3597 but task is already holding lock: ffff888063e319d8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x1e/0x30 kernel/sched/core.c:474 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #3 (&rq->__lock){-.-.}-{2:2}: lock_acquire kernel/locking/lockdep.c:5625 [inline] lock_acquire+0x1ab/0x520 kernel/locking/lockdep.c:5590 _raw_spin_lock_nested+0x30/0x40 kernel/locking/spinlock.c:368 raw_spin_rq_lock_nested+0x1e/0x30 kernel/sched/core.c:474 raw_spin_rq_lock kernel/sched/sched.h:1317 [inline] rq_lock kernel/sched/sched.h:1620 [inline] task_fork_fair+0x76/0x4e0 kernel/sched/fair.c:11091 sched_fork+0x406/0x990 kernel/sched/core.c:4393 copy_process+0x2002/0x73d0 kernel/fork.c:2165 kernel_clone+0xe7/0x10d0 kernel/fork.c:2585 kernel_thread+0xb5/0xf0 kernel/fork.c:2637 rest_init+0x23/0x3e0 init/main.c:684 start_kernel+0x47a/0x49b init/main.c:1125 secondary_startup_64_no_verify+0xb0/0xbb -> #2 (&p->pi_lock){-.-.}-{2:2}: lock_acquire kernel/locking/lockdep.c:5625 [inline] lock_acquire+0x1ab/0x520 kernel/locking/lockdep.c:5590 __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+0xab/0x1880 kernel/sched/core.c:3981 up+0x92/0xe0 kernel/locking/semaphore.c:190 __up_console_sem+0xa4/0xc0 kernel/printk/printk.c:254 console_unlock+0x567/0xb40 kernel/printk/printk.c:2726 vga_remove_vgacon drivers/gpu/vga/vgaarb.c:211 [inline] vga_remove_vgacon.cold+0x99/0x9e drivers/gpu/vga/vgaarb.c:192 drm_aperture_remove_conflicting_pci_framebuffers+0x1e8/0x2c0 drivers/gpu/drm/drm_aperture.c:350 bochs_pci_probe+0x118/0x890 drivers/gpu/drm/tiny/bochs.c:643 local_pci_probe+0xdb/0x190 drivers/pci/pci-driver.c:323 pci_call_probe drivers/pci/pci-driver.c:380 [inline] __pci_device_probe drivers/pci/pci-driver.c:405 [inline] pci_device_probe+0x3e6/0x6f0 drivers/pci/pci-driver.c:448 call_driver_probe drivers/base/dd.c:517 [inline] really_probe drivers/base/dd.c:596 [inline] really_probe+0x245/0xbd0 drivers/base/dd.c:541 __driver_probe_device+0x338/0x4d0 drivers/base/dd.c:751 driver_probe_device+0x4c/0x1a0 drivers/base/dd.c:781 __driver_attach+0x1d6/0x3b0 drivers/base/dd.c:1140 bus_for_each_dev+0x147/0x1d0 drivers/base/bus.c:301 bus_add_driver+0x41d/0x630 drivers/base/bus.c:618 driver_register+0x1c4/0x330 drivers/base/driver.c:171 bochs_init+0x78/0x86 drivers/gpu/drm/tiny/bochs.c:720 do_one_initcall+0x103/0x650 init/main.c:1287 do_initcall_level init/main.c:1360 [inline] do_initcalls init/main.c:1376 [inline] do_basic_setup init/main.c:1396 [inline] kernel_init_freeable+0x6ca/0x753 init/main.c:1598 kernel_init+0x1a/0x1d0 init/main.c:1490 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 -> #1 ((console_sem).lock){....}-{2:2}: lock_acquire kernel/locking/lockdep.c:5625 [inline] lock_acquire+0x1ab/0x520 kernel/locking/lockdep.c:5590 __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+0x40/0x120 kernel/printk/printk.c:237 console_trylock+0x12/0x90 kernel/printk/printk.c:2541 console_trylock_spinning kernel/printk/printk.c:1843 [inline] vprintk_emit+0x141/0x4a0 kernel/printk/printk.c:2243 vprintk+0x80/0x90 kernel/printk/printk_safe.c:50 _printk+0xba/0xed kernel/printk/printk.c:2265 show_trace_log_lvl+0x57/0x2bb arch/x86/kernel/dumpstack.c:195 ex_handler_wrmsr_unsafe+0x47/0xc0 arch/x86/mm/extable.c:121 fixup_exception+0x9a/0xd0 arch/x86/mm/extable.c:183 __exc_general_protection arch/x86/kernel/traps.c:567 [inline] exc_general_protection+0xed/0x2f0 arch/x86/kernel/traps.c:531 asm_exc_general_protection+0x1e/0x30 arch/x86/include/asm/idtentry.h:562 wrmsrl arch/x86/include/asm/msr.h:281 [inline] __x86_pmu_enable_event arch/x86/events/perf_event.h:1118 [inline] x86_pmu_enable_all+0x16d/0x3f0 arch/x86/events/core.c:741 x86_pmu_enable+0x453/0xd50 arch/x86/events/core.c:1346 perf_pmu_enable kernel/events/core.c:1207 [inline] perf_pmu_enable+0xcf/0x120 kernel/events/core.c:1203 __perf_install_in_context+0x68e/0x9f0 kernel/events/core.c:2817 remote_function kernel/events/core.c:91 [inline] remote_function+0x115/0x1a0 kernel/events/core.c:71 generic_exec_single kernel/smp.c:518 [inline] generic_exec_single+0x1fe/0x300 kernel/smp.c:504 smp_call_function_single+0x186/0x4b0 kernel/smp.c:755 task_function_call+0xd9/0x160 kernel/events/core.c:119 perf_install_in_context+0x2cb/0x550 kernel/events/core.c:2918 __do_sys_perf_event_open+0x1c7c/0x2de0 kernel/events/core.c:12353 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae -> #0 (&ctx->lock){....}-{2:2}: check_prev_add+0x165/0x24f0 kernel/locking/lockdep.c:3051 check_prevs_add kernel/locking/lockdep.c:3174 [inline] validate_chain kernel/locking/lockdep.c:3789 [inline] __lock_acquire+0x2e03/0x57e0 kernel/locking/lockdep.c:5015 lock_acquire kernel/locking/lockdep.c:5625 [inline] lock_acquire+0x1ab/0x520 kernel/locking/lockdep.c:5590 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:154 perf_event_context_sched_out kernel/events/core.c:3489 [inline] __perf_event_task_sched_out+0x6e8/0x18d0 kernel/events/core.c:3597 perf_event_task_sched_out include/linux/perf_event.h:1229 [inline] prepare_task_switch kernel/sched/core.c:4744 [inline] context_switch kernel/sched/core.c:4892 [inline] __schedule+0xf77/0x2530 kernel/sched/core.c:6287 preempt_schedule_common+0x4a/0xc0 kernel/sched/core.c:6459 preempt_schedule_thunk+0x16/0x18 arch/x86/entry/thunk_64.S:35 smp_call_function_single+0x41d/0x4b0 kernel/smp.c:760 task_function_call+0xd9/0x160 kernel/events/core.c:119 perf_install_in_context+0x2cb/0x550 kernel/events/core.c:2918 __do_sys_perf_event_open+0x1c7c/0x2de0 kernel/events/core.c:12353 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 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 *** 3 locks held by syz-executor/9146: #0: ffff888017919fd8 (&sig->exec_update_lock){++++}-{3:3}, at: __do_sys_perf_event_open+0xf84/0x2de0 kernel/events/core.c:12193 #1: ffff88801d6354b0 (&ctx->mutex){+.+.}-{3:3}, at: __do_sys_perf_event_open+0x17de/0x2de0 kernel/events/core.c:12247 #2: ffff888063e319d8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x1e/0x30 kernel/sched/core.c:474 stack backtrace: CPU: 0 PID: 9146 Comm: syz-executor Not tainted 5.14.0+ #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1.1 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:105 check_noncircular+0x26b/0x310 kernel/locking/lockdep.c:2131 check_prev_add+0x165/0x24f0 kernel/locking/lockdep.c:3051 check_prevs_add kernel/locking/lockdep.c:3174 [inline] validate_chain kernel/locking/lockdep.c:3789 [inline] __lock_acquire+0x2e03/0x57e0 kernel/locking/lockdep.c:5015 lock_acquire kernel/locking/lockdep.c:5625 [inline] lock_acquire+0x1ab/0x520 kernel/locking/lockdep.c:5590 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:154 perf_event_context_sched_out kernel/events/core.c:3489 [inline] __perf_event_task_sched_out+0x6e8/0x18d0 kernel/events/core.c:3597 perf_event_task_sched_out include/linux/perf_event.h:1229 [inline] prepare_task_switch kernel/sched/core.c:4744 [inline] context_switch kernel/sched/core.c:4892 [inline] __schedule+0xf77/0x2530 kernel/sched/core.c:6287 preempt_schedule_common+0x4a/0xc0 kernel/sched/core.c:6459 preempt_schedule_thunk+0x16/0x18 arch/x86/entry/thunk_64.S:35 smp_call_function_single+0x41d/0x4b0 kernel/smp.c:760 task_function_call+0xd9/0x160 kernel/events/core.c:119 perf_install_in_context+0x2cb/0x550 kernel/events/core.c:2918 __do_sys_perf_event_open+0x1c7c/0x2de0 kernel/events/core.c:12353 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4739cd Code: 02 b8 ff ff ff ff c3 66 0f 1f 44 00 00 f3 0f 1e fa 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:00007fb5e3f21c58 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 000000000059c0a0 RCX: 00000000004739cd RDX: fbffffffffffffff RSI: 0000000000000000 RDI: 0000000020000040 RBP: 00000000004ebd80 R08: 0000000000000009 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 000000000059c0a0 R13: 00007ffcc97e6abf R14: 00007ffcc97e6c60 R15: 00007fb5e3f21dc0 Call Trace: x86_pmu_enable+0x453/0xd50 arch/x86/events/core.c:1346 perf_pmu_enable kernel/events/core.c:1207 [inline] perf_pmu_enable+0xcf/0x120 kernel/events/core.c:1203 perf_event_context_sched_in kernel/events/core.c:3865 [inline] __perf_event_task_sched_in+0x64e/0x900 kernel/events/core.c:3903 perf_event_task_sched_in include/linux/perf_event.h:1206 [inline] finish_task_switch+0x297/0x820 kernel/sched/core.c:4809 context_switch kernel/sched/core.c:4943 [inline] __schedule+0xce1/0x2530 kernel/sched/core.c:6287 preempt_schedule_common+0x4a/0xc0 kernel/sched/core.c:6459 preempt_schedule_thunk+0x16/0x18 arch/x86/entry/thunk_64.S:35 smp_call_function_single+0x41d/0x4b0 kernel/smp.c:760 task_function_call+0xd9/0x160 kernel/events/core.c:119 perf_install_in_context+0x2cb/0x550 kernel/events/core.c:2918 __do_sys_perf_event_open+0x1c7c/0x2de0 kernel/events/core.c:12353 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4739cd Code: 02 b8 ff ff ff ff c3 66 0f 1f 44 00 00 f3 0f 1e fa 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:00007fb5e3f21c58 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 000000000059c0a0 RCX: 00000000004739cd RDX: fbffffffffffffff RSI: 0000000000000000 RDI: 0000000020000040 RBP: 00000000004ebd80 R08: 0000000000000009 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 000000000059c0a0 R13: 00007ffcc97e6abf R14: 00007ffcc97e6c60 R15: 00007fb5e3f21dc0 Call Trace: x86_pmu_enable+0x453/0xd50 arch/x86/events/core.c:1346 perf_pmu_enable kernel/events/core.c:1207 [inline] perf_pmu_enable+0xcf/0x120 kernel/events/core.c:1203 perf_event_context_sched_in kernel/events/core.c:3865 [inline] __perf_event_task_sched_in+0x64e/0x900 kernel/events/core.c:3903 perf_event_task_sched_in include/linux/perf_event.h:1206 [inline] finish_task_switch+0x297/0x820 kernel/sched/core.c:4809 context_switch kernel/sched/core.c:4943 [inline] __schedule+0xce1/0x2530 kernel/sched/core.c:6287 preempt_schedule_common+0x4a/0xc0 kernel/sched/core.c:6459 preempt_schedule_thunk+0x16/0x18 arch/x86/entry/thunk_64.S:35 smp_call_function_single+0x41d/0x4b0 kernel/smp.c:760 task_function_call+0xd9/0x160 kernel/events/core.c:119 perf_install_in_context+0x2cb/0x550 kernel/events/core.c:2918 __do_sys_perf_event_open+0x1c7c/0x2de0 kernel/events/core.c:12353 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4739cd Code: 02 b8 ff ff ff ff c3 66 0f 1f 44 00 00 f3 0f 1e fa 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:00007fb5e3f21c58 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 000000000059c0a0 RCX: 00000000004739cd RDX: fbffffffffffffff RSI: 0000000000000000 RDI: 0000000020000040 RBP: 00000000004ebd80 R08: 0000000000000009 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 000000000059c0a0 R13: 00007ffcc97e6abf R14: 00007ffcc97e6c60 R15: 00007fb5e3f21dc0 Call Trace: x86_pmu_enable+0x453/0xd50 arch/x86/events/core.c:1346 perf_pmu_enable kernel/events/core.c:1207 [inline] perf_pmu_enable+0xcf/0x120 kernel/events/core.c:1203 perf_event_context_sched_in kernel/events/core.c:3865 [inline] __perf_event_task_sched_in+0x64e/0x900 kernel/events/core.c:3903 perf_event_task_sched_in include/linux/perf_event.h:1206 [inline] finish_task_switch+0x297/0x820 kernel/sched/core.c:4809 context_switch kernel/sched/core.c:4943 [inline] __schedule+0xce1/0x2530 kernel/sched/core.c:6287 preempt_schedule_common+0x4a/0xc0 kernel/sched/core.c:6459 preempt_schedule_thunk+0x16/0x18 arch/x86/entry/thunk_64.S:35 smp_call_function_single+0x41d/0x4b0 kernel/smp.c:760 task_function_call+0xd9/0x160 kernel/events/core.c:119 perf_install_in_context+0x2cb/0x550 kernel/events/core.c:2918 __do_sys_perf_event_open+0x1c7c/0x2de0 kernel/events/core.c:12353 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4739cd Code: 02 b8 ff ff ff ff c3 66 0f 1f 44 00 00 f3 0f 1e fa 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:00007fb5e3f21c58 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 000000000059c0a0 RCX: 00000000004739cd RDX: fbffffffffffffff RSI: 0000000000000000 RDI: 0000000020000040 RBP: 00000000004ebd80 R08: 0000000000000009 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 000000000059c0a0 R13: 00007ffcc97e6abf R14: 00007ffcc97e6c60 R15: 00007fb5e3f21dc0 Call Trace: x86_pmu_enable+0x453/0xd50 arch/x86/events/core.c:1346 perf_pmu_enable kernel/events/core.c:1207 [inline] perf_pmu_enable+0xcf/0x120 kernel/events/core.c:1203 perf_event_context_sched_in kernel/events/core.c:3865 [inline] __perf_event_task_sched_in+0x64e/0x900 kernel/events/core.c:3903 perf_event_task_sched_in include/linux/perf_event.h:1206 [inline] finish_task_switch+0x297/0x820 kernel/sched/core.c:4809 context_switch kernel/sched/core.c:4943 [inline] __schedule+0xce1/0x2530 kernel/sched/core.c:6287 schedule+0xd3/0x270 kernel/sched/core.c:6366 freezable_schedule include/linux/freezer.h:172 [inline] futex_wait_queue_me+0x25a/0x520 kernel/futex.c:2821 futex_wait+0x1e3/0x5f0 kernel/futex.c:2922 do_futex+0x26e/0x18e0 kernel/futex.c:3932 __do_sys_futex kernel/futex.c:4009 [inline] __se_sys_futex kernel/futex.c:3990 [inline] __x64_sys_futex+0x1b0/0x4d0 kernel/futex.c:3990 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4739cd Code: 02 b8 ff ff ff ff c3 66 0f 1f 44 00 00 f3 0f 1e fa 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:00007fb5e3f21cd8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: ffffffffffffffda RBX: 000000000059c0a0 RCX: 00000000004739cd RDX: 0000000000000000 RSI: 0000000000000080 RDI: 000000000059c0a8 RBP: 000000000059c0a8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000059c0ac R13: 00007ffcc97e6abf R14: 00007ffcc97e6c60 R15: 00007fb5e3f21dc0 Call Trace: x86_pmu_enable+0x453/0xd50 arch/x86/events/core.c:1346 perf_pmu_enable kernel/events/core.c:1207 [inline] perf_pmu_enable+0xcf/0x120 kernel/events/core.c:1203 perf_event_context_sched_in kernel/events/core.c:3865 [inline] __perf_event_task_sched_in+0x64e/0x900 kernel/events/core.c:3903 perf_event_task_sched_in include/linux/perf_event.h:1206 [inline] finish_task_switch+0x297/0x820 kernel/sched/core.c:4809 context_switch kernel/sched/core.c:4943 [inline] __schedule+0xce1/0x2530 kernel/sched/core.c:6287 schedule+0xd3/0x270 kernel/sched/core.c:6366 freezable_schedule include/linux/freezer.h:172 [inline] futex_wait_queue_me+0x25a/0x520 kernel/futex.c:2821 futex_wait+0x1e3/0x5f0 kernel/futex.c:2922 do_futex+0x26e/0x18e0 kernel/futex.c:3932 __do_sys_futex kernel/futex.c:4009 [inline] __se_sys_futex kernel/futex.c:3990 [inline] __x64_sys_futex+0x1b0/0x4d0 kernel/futex.c:3990 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4739cd Code: 02 b8 ff ff ff ff c3 66 0f 1f 44 00 00 f3 0f 1e fa 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:00007fb5e3f21cd8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: ffffffffffffffda RBX: 000000000059c0a0 RCX: 00000000004739cd RDX: 0000000000000000 RSI: 0000000000000080 RDI: 000000000059c0a8 RBP: 000000000059c0a8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000059c0ac R13: 00007ffcc97e6abf R14: 00007ffcc97e6c60 R15: 00007fb5e3f21dc0 Call Trace: x86_pmu_enable+0x453/0xd50 arch/x86/events/core.c:1346 perf_pmu_enable kernel/events/core.c:1207 [inline] perf_pmu_enable+0xcf/0x120 kernel/events/core.c:1203 perf_event_context_sched_in kernel/events/core.c:3865 [inline] __perf_event_task_sched_in+0x64e/0x900 kernel/events/core.c:3903 perf_event_task_sched_in include/linux/perf_event.h:1206 [inline] finish_task_switch+0x297/0x820 kernel/sched/core.c:4809 context_switch kernel/sched/core.c:4943 [inline] __schedule+0xce1/0x2530 kernel/sched/core.c:6287 schedule+0xd3/0x270 kernel/sched/core.c:6366 freezable_schedule include/linux/freezer.h:172 [inline] futex_wait_queue_me+0x25a/0x520 kernel/futex.c:2821 futex_wait+0x1e3/0x5f0 kernel/futex.c:2922 do_futex+0x26e/0x18e0 kernel/futex.c:3932 __do_sys_futex kernel/futex.c:4009 [inline] __se_sys_futex kernel/futex.c:3990 [inline] __x64_sys_futex+0x1b0/0x4d0 kernel/futex.c:3990 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4739cd Code: 02 b8 ff ff ff ff c3 66 0f 1f 44 00 00 f3 0f 1e fa 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:00007fb5e3f21cd8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: ffffffffffffffda RBX: 000000000059c0a0 RCX: 00000000004739cd RDX: 0000000000000000 RSI: 0000000000000080 RDI: 000000000059c0a8 RBP: 000000000059c0a8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000059c0ac R13: 00007ffcc97e6abf R14: 00007ffcc97e6c60 R15: 00007fb5e3f21dc0 Call Trace: x86_pmu_enable+0x453/0xd50 arch/x86/events/core.c:1346 perf_pmu_enable kernel/events/core.c:1207 [inline] perf_pmu_enable+0xcf/0x120 kernel/events/core.c:1203 perf_event_context_sched_in kernel/events/core.c:3865 [inline] __perf_event_task_sched_in+0x64e/0x900 kernel/events/core.c:3903 perf_event_task_sched_in include/linux/perf_event.h:1206 [inline] finish_task_switch+0x297/0x820 kernel/sched/core.c:4809 context_switch kernel/sched/core.c:4943 [inline] __schedule+0xce1/0x2530 kernel/sched/core.c:6287 schedule+0xd3/0x270 kernel/sched/core.c:6366 freezable_schedule include/linux/freezer.h:172 [inline] futex_wait_queue_me+0x25a/0x520 kernel/futex.c:2821 futex_wait+0x1e3/0x5f0 kernel/futex.c:2922 do_futex+0x26e/0x18e0 kernel/futex.c:3932
