WARNING: CPU: 0 PID: 11637 at kernel/events/core.c:1835 perf_group_attach+0x3fd/0x4d0 kernel/events/core.c:1835 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 11637 Comm: syz-executor.2 Not tainted 5.2.0-rc4 #25 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x172/0x1f0 lib/dump_stack.c:113 panic+0x2cb/0x744 kernel/panic.c:219 __warn.cold+0x20/0x4d kernel/panic.c:576 report_bug+0x263/0x2b0 lib/bug.c:186 fixup_bug arch/x86/kernel/traps.c:179 [inline] fixup_bug arch/x86/kernel/traps.c:174 [inline] do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:272 do_invalid_op+0x37/0x50 arch/x86/kernel/traps.c:291 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:986 RIP: 0010:perf_group_attach+0x3fd/0x4d0 kernel/events/core.c:1835 Code: ff 48 8d 7b 10 48 89 f8 48 c1 e8 03 42 80 3c 28 00 75 57 48 8b 5b 10 48 83 eb 10 49 39 dc 75 d4 e9 20 ff ff ff e8 43 42 eb ff <0f> 0b e9 55 fd ff ff 48 c7 c7 b4 e5 80 89 e8 60 e0 23 00 e9 5b fc RSP: 0018:ffff8880ae809ea8 EFLAGS: 00010006 RAX: ffff8880554d0200 RBX: ffff888093480600 RCX: ffffffff81856558 RDX: 0000000000010000 RSI: ffffffff8185687d RDI: ffff888093480818 RBP: ffff8880ae809ed8 R08: ffff8880554d0200 R09: ffffed1015d013cb R10: ffffed1015d013ca R11: 0000000000000003 R12: ffff888055506a00 R13: ffffe8ffffc150d0 R14: 0000000000000000 R15: ffff8880ae83a1c8 add_event_to_ctx kernel/events/core.c:2393 [inline] __perf_install_in_context+0x4b5/0x960 kernel/events/core.c:2544 remote_function kernel/events/core.c:86 [inline] remote_function+0x129/0x1a0 kernel/events/core.c:66 flush_smp_call_function_queue+0x147/0x4f0 kernel/smp.c:244 generic_smp_call_function_single_interrupt+0x13/0x2b kernel/smp.c:193 smp_call_function_single_interrupt+0x9d/0x450 arch/x86/kernel/smp.c:294 call_function_single_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:828 RIP: 0010:snprintf+0x8a/0xf0 lib/vsprintf.c:2635 Code: 87 c7 03 f1 f1 f1 f1 c7 43 04 00 00 00 f3 c7 43 08 f3 f3 f3 f3 65 48 8b 04 25 28 00 00 00 48 89 44 24 78 31 c0 e8 46 7c 57 fa <48> 8d 45 10 4c 89 f2 4c 89 ee 48 89 44 24 28 48 8d 4c 24 20 4c 89 RSP: 0018:ffff88808f19f8a8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff04 RAX: ffff8880554d0200 RBX: ffffed1011e33f15 RCX: 0000000000000135 RDX: 0000000000000000 RSI: ffffffff87192e7a RDI: ffff88808f19fa10 RBP: ffff88808f19f978 R08: ffff8880554d0200 R09: 0000000000000001 R10: ffffed1015d06bdf R11: ffff8880ae835efb R12: ffff88808f19fa10 R13: 000000000000000b R14: ffffffff8777f340 R15: 0000000000000135 proc_flush_task_mnt fs/proc/base.c:3120 [inline] proc_flush_task+0x2d7/0x4d0 fs/proc/base.c:3182 release_task+0x18c/0x1630 kernel/exit.c:197 exit_notify kernel/exit.c:747 [inline] do_exit+0x14f7/0x2fa0 kernel/exit.c:898 do_group_exit+0x135/0x370 kernel/exit.c:981 get_signal+0x471/0x24b0 kernel/signal.c:2640 do_signal+0x87/0x1900 arch/x86/kernel/signal.c:815 exit_to_usermode_loop+0x244/0x2c0 arch/x86/entry/common.c:164 prepare_exit_to_usermode arch/x86/entry/common.c:199 [inline] syscall_return_slowpath arch/x86/entry/common.c:279 [inline] do_syscall_64+0x58e/0x680 arch/x86/entry/common.c:304 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x459279 Code: fd b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 cb b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f738de2cc78 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: 0000000000000005 RBX: 0000000000000005 RCX: 0000000000459279 RDX: 0000000000000000 RSI: ffffffffffffffff RDI: 00000000200000c0 RBP: 000000000075bfc0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000004 R11: 0000000000000246 R12: 00007f738de2d6d4 R13: 00000000004c5ec2 R14: 00000000004da848 R15: 00000000ffffffff Kernel Offset: disabled Rebooting in 86400 seconds..