WARNING: CPU: 0 PID: 7984 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: 7984 Comm: syz-executor863 Not tainted 5.1.0-rc4-next-20190412 #24 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/0x72b kernel/panic.c:214 __warn.cold+0x20/0x46 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: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 33 5a eb ff <0f> 0b e9 55 fd ff ff 48 c7 c7 18 9d 5f 89 e8 a0 63 24 00 e9 5b fc RSP: 0018:ffff88809f467a90 EFLAGS: 00010093 RAX: ffff8880a4c90240 RBX: ffff88808c43c300 RCX: ffffffff81852b98 RDX: 0000000000000000 RSI: ffffffff81852ebd RDI: ffff88808c43c518 RBP: ffff88809f467ac0 R08: ffff8880a4c90240 R09: ffffffff899cf008 R10: ffffffff899cf010 R11: 0000000000000001 R12: ffff8880a4e6d300 R13: ffffe8ffffc13bb8 R14: 0000000000000000 R15: ffff8880ae8321c8 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 generic_exec_single+0x284/0x4b0 kernel/smp.c:153 smp_call_function_single+0x12d/0x420 kernel/smp.c:299 cpu_function_call kernel/events/core.c:140 [inline] perf_install_in_context+0x369/0x3d0 kernel/events/core.c:2569 __do_sys_perf_event_open+0x1858/0x24e0 kernel/events/core.c:11061 __se_sys_perf_event_open kernel/events/core.c:10690 [inline] __x64_sys_perf_event_open+0xbe/0x150 kernel/events/core.c:10690 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x446a69 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:00007f7548a6cdb8 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 00000000006dbc38 RCX: 0000000000446a69 RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000020000000 RBP: 00000000006dbc30 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000003 R11: 0000000000000246 R12: 00000000006dbc3c R13: 00007ffeac7520ff R14: 00007f7548a6d9c0 R15: 0000000000000000 Kernel Offset: disabled Rebooting in 86400 seconds..