WARNING: CPU: 0 PID: 8302 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: 8302 Comm: syz-executor077 Not tainted 5.1.0-rc4+ #64 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/0x65c kernel/panic.c:214 __warn.cold+0x20/0x45 kernel/panic.c:571 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:973 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 b4 eb ff <0f> 0b e9 55 fd ff ff 48 c7 c7 18 61 5e 89 e8 c0 bb 23 00 e9 5b fc RSP: 0018:ffff8880ae807ea8 EFLAGS: 00010006 RAX: ffff888095862180 RBX: ffff888090f13240 RCX: ffffffff8184d798 RDX: 0000000000010000 RSI: ffffffff8184dabd RDI: ffff888090f13458 RBP: ffff8880ae807ed8 R08: ffff888095862180 R09: ffffed1015d00fcb R10: ffffed1015d00fca R11: 0000000000000003 R12: ffff8880916a8100 R13: ffffe8ffffc15980 R14: 0000000000000000 R15: ffff8880ae832048 add_event_to_ctx kernel/events/core.c:2392 [inline] __perf_install_in_context+0x4b5/0x960 kernel/events/core.c:2533 remote_function kernel/events/core.c:86 [inline] remote_function+0x12b/0x1a0 kernel/events/core.c:66 flush_smp_call_function_queue+0x14a/0x500 kernel/smp.c:243 generic_smp_call_function_single_interrupt+0x13/0x2b kernel/smp.c:192 smp_call_function_single_interrupt+0xa3/0x460 arch/x86/kernel/smp.c:296 call_function_single_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:829 RIP: 0010:vsnprintf+0x51/0x1af0 lib/vsprintf.c:2327 Code: 8d 70 ff ff ff 48 89 c1 48 89 85 30 ff ff ff 48 b8 00 00 00 00 00 fc ff df 48 01 c8 48 89 bd 48 ff ff ff 48 89 b5 40 ff ff ff <48> c7 85 78 ff ff ff b3 8a b5 41 48 c7 45 80 48 3e 6b 88 48 c7 45 RSP: 0018:ffff888096b377c8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff04 RAX: ffffed1012d66f03 RBX: 000000000000000b RCX: 1ffff11012d66f03 RDX: ffffffff8776e140 RSI: 000000000000000b RDI: ffff888096b37a18 RBP: ffff888096b378a0 R08: ffff888095862180 R09: 0000000000000001 R10: ffffed1015d05bc7 R11: ffff8880ae82de3b R12: ffffffff8776e140 R13: 000000000000000b R14: ffffffff8776e140 R15: 0000000000002069 snprintf+0xbb/0xf0 lib/vsprintf.c:2529 proc_flush_task_mnt fs/proc/base.c:3108 [inline] proc_flush_task+0x248/0x4d0 fs/proc/base.c:3182 release_task+0x18c/0x1630 kernel/exit.c:196 exit_notify kernel/exit.c:746 [inline] do_exit+0x14f9/0x2fa0 kernel/exit.c:897 do_group_exit+0x135/0x370 kernel/exit.c:980 get_signal+0x399/0x1d50 kernel/signal.c:2577 do_signal+0x87/0x1940 arch/x86/kernel/signal.c:816 exit_to_usermode_loop+0x244/0x2c0 arch/x86/entry/common.c:162 prepare_exit_to_usermode arch/x86/entry/common.c:197 [inline] syscall_return_slowpath arch/x86/entry/common.c:268 [inline] do_syscall_64+0x52d/0x610 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x446a49 Code: e8 0c e8 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 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 0f 83 5b 07 fc ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fea759aedb8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00000000006dbc38 RCX: 0000000000446a49 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00000000006dbc38 RBP: 00000000006dbc30 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc3c R13: 00007fffe72e16ff R14: 00007fea759af9c0 R15: 000000000000002d Kernel Offset: disabled Rebooting in 86400 seconds..