SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pid=5513 comm=syz-executor.1 Call Trace: ====================================================== WARNING: possible circular locking dependency detected 5.16.0-rc8-next-20220110 #1 Not tainted ------------------------------------------------------ syz-executor.7/5517 is trying to acquire lock: ffffffff851f4f98 ((console_sem).lock){-.-.}-{2:2}, at: down_trylock+0xe/0x60 kernel/locking/semaphore.c:138 but task is already holding lock: ffff88801f30c420 (&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+0x530a/0x6cb0 kernel/fork.c:2381 kernel_clone+0xe7/0xa60 kernel/fork.c:2557 kernel_thread+0xb5/0xf0 kernel/fork.c:2609 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 vt_disallocate drivers/tty/vt/vt_ioctl.c:640 [inline] vt_ioctl+0x286f/0x2c80 drivers/tty/vt/vt_ioctl.c:903 tty_ioctl+0x85b/0x1780 drivers/tty/tty_io.c:2778 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:874 [inline] __se_sys_ioctl fs/ioctl.c:860 [inline] __x64_sys_ioctl+0x196/0x210 fs/ioctl.c:860 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 -> #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 __wrmsr arch/x86/include/asm/msr.h:103 [inline] native_write_msr arch/x86/include/asm/msr.h:154 [inline] wrmsrl arch/x86/include/asm/msr.h:271 [inline] __x86_pmu_enable_event arch/x86/events/perf_event.h:1122 [inline] x86_pmu_enable_all+0x132/0x3c0 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.7/5517: #0: ffff888016dcc960 (&sig->exec_update_lock){++++}-{3:3}, at: __do_sys_perf_event_open+0x1023/0x3040 kernel/events/core.c:12273 #1: ffff88801f30c4b0 (&ctx->mutex){+.+.}-{3:3}, at: __do_sys_perf_event_open+0x17cd/0x3040 kernel/events/core.c:12327 #2: ffff88806ce3ee20 (&cpuctx_lock){-...}-{2:2}, at: __perf_install_in_context+0xf4/0x310 kernel/events/core.c:2782 #3: ffff88801f30c420 (&ctx->lock){....}-{2:2}, at: __perf_install_in_context+0x12d/0x310 kernel/events/core.c:2784 stack backtrace: CPU: 0 PID: 5517 Comm: syz-executor.7 Not tainted 5.16.0-rc8-next-20220110 #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:1122 [inline] RIP: 0010:x86_pmu_enable_all+0x132/0x3c0 arch/x86/events/core.c:743 Code: f7 d7 49 21 c7 48 89 f8 48 c1 e8 03 42 80 3c 20 00 0f 85 64 02 00 00 48 8b 9b 78 01 00 00 4c 89 fa 44 89 f8 48 c1 ea 20 89 d9 <0f> 30 0f 1f 44 00 00 e8 02 44 42 00 e8 fd 43 42 00 8b 1d 83 a6 8b RSP: 0018:ffff88800d0ff968 EFLAGS: 00010016 RAX: 0000000000530076 RBX: 00000000c0010200 RCX: 00000000c0010200 RDX: 0000000000000100 RSI: ffffffff8100de36 RDI: ffff8880081c2f78 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000001 R10: ffffffff8100de25 R11: 0000000000000000 R12: dffffc0000000000 R13: ffff88806ce21c20 R14: ffff88806ce21e20 R15: 0000010000530076 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: 0033:0x7fec38754b19 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:00007fec35cca188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 00007fec38867f60 RCX: 00007fec38754b19 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000000 RBP: 00007fec387aef6d R08: 0000000000000000 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc99a6e40f R14: 00007fec35cca300 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: 0033:0x7fec38754b19 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:00007fec35cca188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 00007fec38867f60 RCX: 00007fec38754b19 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000000 RBP: 00007fec387aef6d R08: 0000000000000000 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc99a6e40f R14: 00007fec35cca300 R15: 0000000000022000 Call Trace: x86_pmu_stop+0x149/0x330 arch/x86/events/core.c:1597 x86_pmu_del+0x1be/0x610 arch/x86/events/core.c:1636 event_sched_out+0x2ed/0xaf0 kernel/events/core.c:2289 __perf_remove_from_context+0x88/0x830 kernel/events/core.c:2356 event_function+0x297/0x3d0 kernel/events/core.c:253 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+0x3b/0xc0 arch/x86/kernel/smp.c:243 asm_sysvec_call_function_single+0x12/0x20 arch/x86/include/asm/idtentry.h:646 RIP: 0010:on_stack arch/x86/include/asm/stacktrace.h:56 [inline] RIP: 0010:stack_access_ok arch/x86/kernel/unwind_orc.c:342 [inline] RIP: 0010:deref_stack_reg+0x7b/0x150 arch/x86/kernel/unwind_orc.c:352 Code: 03 80 3c 02 00 0f 85 c3 00 00 00 49 8d 7c 24 10 4d 8b 6c 24 08 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 <0f> 85 94 00 00 00 49 8b 44 24 10 49 39 ed 77 13 48 39 e8 76 0e 48 RSP: 0018:ffff88806ce098a0 EFLAGS: 00000246 RAX: dffffc0000000000 RBX: ffff88806ce09a00 RCX: 0000000000000001 RDX: 1ffff1100d9c1338 RSI: ffff88806ce09b58 RDI: ffff88806ce099c0 RBP: ffff88806ce09b58 R08: ffffffff85c8252e R09: ffffffff85c82532 R10: ffffed100d9c1343 R11: 000000000003403b R12: ffff88806ce099b0 R13: ffff88806ce02000 R14: ffff88806ce099b0 R15: ffff88806ce099f0 unwind_next_frame+0x15a5/0x2250 arch/x86/kernel/unwind_orc.c:600 arch_stack_walk+0x83/0xf0 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x8c/0xc0 kernel/stacktrace.c:122 __save_stack_trace mm/kmemleak.c:570 [inline] create_object.isra.0+0x372/0xa20 mm/kmemleak.c:626 kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline] slab_post_alloc_hook mm/slab.h:741 [inline] slab_alloc_node mm/slub.c:3230 [inline] __kmalloc_node_track_caller+0x269/0x440 mm/slub.c:4957 kmalloc_reserve net/core/skbuff.c:354 [inline] __alloc_skb+0xe3/0x340 net/core/skbuff.c:426 __netdev_alloc_skb+0x73/0x3d0 net/core/skbuff.c:494 netdev_alloc_skb include/linux/skbuff.h:2920 [inline] dev_alloc_skb include/linux/skbuff.h:2933 [inline] __ieee80211_beacon_get+0x349/0xee0 net/mac80211/tx.c:5147 ieee80211_beacon_get_tim+0x88/0x8f0 net/mac80211/tx.c:5226 ieee80211_beacon_get include/net/mac80211.h:5004 [inline] mac80211_hwsim_beacon_tx+0x111/0x8f0 drivers/net/wireless/mac80211_hwsim.c:1808 __iterate_interfaces+0x1f0/0x570 net/mac80211/util.c:793 ieee80211_iterate_active_interfaces_atomic+0x70/0x180 net/mac80211/util.c:829 mac80211_hwsim_beacon+0xcd/0x1c0 drivers/net/wireless/mac80211_hwsim.c:1861 __run_hrtimer kernel/time/hrtimer.c:1685 [inline] __hrtimer_run_queues+0x5e8/0xbd0 kernel/time/hrtimer.c:1749 hrtimer_run_softirq+0x172/0x340 kernel/time/hrtimer.c:1766 __do_softirq+0x270/0x8c7 kernel/softirq.c:558 invoke_softirq kernel/softirq.c:432 [inline] __irq_exit_rcu+0x113/0x170 kernel/softirq.c:637 irq_exit_rcu+0x5/0x20 kernel/softirq.c:649 sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1097 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638 RIP: 0010:arch_local_irq_enable arch/x86/include/asm/irqflags.h:81 [inline] RIP: 0010:arch_local_irq_restore arch/x86/include/asm/irqflags.h:138 [inline] RIP: 0010:generic_exec_single+0x20c/0x300 kernel/smp.c:520 Code: 31 e4 4c 89 ef 0f ae e8 ff d5 e9 ec fe ff ff e8 2a c3 0a 00 e8 a5 8a 11 00 4c 89 ef 0f ae e8 ff d5 e8 a8 8d 11 00 fb 45 31 e4 cc fe ff ff e8 0a c3 0a 00 0f 0b e9 73 ff ff ff 4c 89 f7 e8 5b RSP: 0018:ffff88800d0ffb08 EFLAGS: 00000246 RAX: 0000000000000007 RBX: 0000000000000200 RCX: 1ffffffff0b196d9 RDX: 0000000000000000 RSI: ffffffff8149ed81 RDI: ffffffff81385f88 RBP: ffffffff81513b50 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff8149ed68 R11: 0000000000000001 R12: 0000000000000000 R13: ffff88800d0ffc38 R14: ffff88800d0ffb88 R15: 0000000000000200 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: 0033:0x7fec38754b19 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:00007fec35cca188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 00007fec38867f60 RCX: 00007fec38754b19 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000000 RBP: 00007fec387aef6d R08: 0000000000000000 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc99a6e40f R14: 00007fec35cca300 R15: 0000000000022000 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pid=5524 comm=syz-executor.1 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 5518 Comm: syz-executor.6 Not tainted 5.16.0-rc8-next-20220110 #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 fail_dump lib/fault-inject.c:52 [inline] should_fail.cold+0x5/0xa lib/fault-inject.c:146 should_failslab+0x5/0x10 mm/slab_common.c:1304 slab_pre_alloc_hook mm/slab.h:713 [inline] slab_alloc_node mm/slub.c:3144 [inline] slab_alloc mm/slub.c:3238 [inline] kmem_cache_alloc+0x5b/0x480 mm/slub.c:3243 kmem_cache_zalloc include/linux/slab.h:705 [inline] jbd2_alloc_handle include/linux/jbd2.h:1603 [inline] new_handle fs/jbd2/transaction.c:481 [inline] jbd2__journal_start+0x18c/0x8d0 fs/jbd2/transaction.c:508 __ext4_journal_start_sb+0x210/0x470 fs/ext4/ext4_jbd2.c:105 __ext4_journal_start fs/ext4/ext4_jbd2.h:326 [inline] ext4_dirty_inode+0x9d/0x110 fs/ext4/inode.c:5899 __mark_inode_dirty+0x3c7/0xe00 fs/fs-writeback.c:2409 mark_inode_dirty include/linux/fs.h:2367 [inline] ext4_setattr+0x680/0x2030 fs/ext4/inode.c:5468 notify_change+0xb79/0x1260 fs/attr.c:410 chmod_common+0x1ea/0x420 fs/open.c:582 do_fchmodat+0xb2/0x140 fs/open.c:621 __do_sys_chmod fs/open.c:639 [inline] __se_sys_chmod fs/open.c:637 [inline] __x64_sys_chmod+0x58/0x80 fs/open.c:637 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: 0033:0x7fa9a99e7b19 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:00007fa9a6f3c188 EFLAGS: 00000246 ORIG_RAX: 000000000000005a RAX: ffffffffffffffda RBX: 00007fa9a9afb020 RCX: 00007fa9a99e7b19 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000080 RBP: 00007fa9a6f3c1d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffcea635a1f R14: 00007fa9a6f3c300 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: 0033:0x7f716ddcfb19 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:00007f716b303188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 00007f716dee30e0 RCX: 00007f716ddcfb19 RDX: 0000000000000000 RSI: ffffffffffffffff RDI: 00000000200000c0 RBP: 00007f716de29f6d R08: 0000000000000000 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd9ac77a2f R14: 00007f716b303300 R15: 0000000000022000 Call Trace: x86_pmu_stop+0x149/0x330 arch/x86/events/core.c:1597 x86_pmu_del+0x1be/0x610 arch/x86/events/core.c:1636 event_sched_out+0x2ed/0xaf0 kernel/events/core.c:2289 __perf_remove_from_context+0x88/0x830 kernel/events/core.c:2356 event_function+0x297/0x3d0 kernel/events/core.c:253 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] event_function_call+0x3d0/0x430 kernel/events/core.c:280 perf_remove_from_context+0xfd/0x230 kernel/events/core.c:2403 perf_event_release_kernel+0x153/0x7f0 kernel/events/core.c:5109 perf_release+0x33/0x40 kernel/events/core.c:5205 __fput+0x281/0x9e0 fs/file_table.c:311 task_work_run+0xe2/0x1a0 kernel/task_work.c:164 tracehook_notify_resume include/linux/tracehook.h:189 [inline] exit_to_user_mode_loop kernel/entry/common.c:175 [inline] exit_to_user_mode_prepare+0x1be/0x1c0 kernel/entry/common.c:207 __syscall_exit_to_user_mode_work kernel/entry/common.c:289 [inline] syscall_exit_to_user_mode+0x19/0x50 kernel/entry/common.c:300 do_syscall_64+0x48/0x90 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f716dd8272b Code: 0f 05 48 3d 00 f0 ff ff 77 45 c3 0f 1f 40 00 48 83 ec 18 89 7c 24 0c e8 63 fc ff ff 8b 7c 24 0c 41 89 c0 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 44 89 c7 89 44 24 0c e8 a1 fc ff ff 8b 44 RSP: 002b:00007ffd9ac77a90 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000004 RCX: 00007f716dd8272b RDX: 00007f716dee8b48 RSI: 0000000000000081 RDI: 0000000000000003 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 00007f716dee8b48 R13: 00007ffd9ac77bb0 R14: 00007f716dee2f60 R15: 0000000000087ee3 ---------------- Code disassembly (best guess): 0: f7 d7 not %edi 2: 49 21 c7 and %rax,%r15 5: 48 89 f8 mov %rdi,%rax 8: 48 c1 e8 03 shr $0x3,%rax c: 42 80 3c 20 00 cmpb $0x0,(%rax,%r12,1) 11: 0f 85 64 02 00 00 jne 0x27b 17: 48 8b 9b 78 01 00 00 mov 0x178(%rbx),%rbx 1e: 4c 89 fa mov %r15,%rdx 21: 44 89 f8 mov %r15d,%eax 24: 48 c1 ea 20 shr $0x20,%rdx 28: 89 d9 mov %ebx,%ecx * 2a: 0f 30 wrmsr <-- trapping instruction 2c: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) 31: e8 02 44 42 00 callq 0x424438 36: e8 fd 43 42 00 callq 0x424438 3b: 8b .byte 0x8b 3c: 1d .byte 0x1d 3d: 83 .byte 0x83 3e: a6 cmpsb %es:(%rdi),%ds:(%rsi) 3f: 8b .byte 0x8b