WARNING: CPU: 0 PID: 23 at kernel/events/core.c:1833 perf_group_attach+0x3fd/0x4d0 /kernel/events/core.c:1833
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 23 Comm: kworker/u4:1 Not tainted 4.19.60 #33
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: bat_events batadv_nc_worker
Call Trace:
 <IRQ>
 __dump_stack /lib/dump_stack.c:77 [inline]
 dump_stack+0x172/0x1f0 /lib/dump_stack.c:113
 panic+0x263/0x507 /kernel/panic.c:185
 __warn.cold+0x20/0x4a /kernel/panic.c:540
 report_bug+0x263/0x2b0 /lib/bug.c:186
 fixup_bug /arch/x86/kernel/traps.c:178 [inline]
 fixup_bug /arch/x86/kernel/traps.c:173 [inline]
 do_error_trap+0x204/0x360 /arch/x86/kernel/traps.c:296
 do_invalid_op+0x1b/0x20 /arch/x86/kernel/traps.c:316
 invalid_op+0x14/0x20 /arch/x86/entry/entry_64.S:1035
RIP: 0010:perf_group_attach+0x3fd/0x4d0 /kernel/events/core.c:1833
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 e3 3a ec ff <0f> 0b e9 55 fd ff ff 48 c7 c7 c0 9b b0 88 e8 f0 ab 22 00 e9 5b fc
RSP: 0018:ffff8880ae807ea8 EFLAGS: 00010006
RAX: ffff8880aa38e600 RBX: ffff8880872eb200 RCX: ffffffff817edb58
RDX: 0000000000010000 RSI: ffffffff817ede7d RDI: ffff8880872eb418
RBP: ffff8880ae807ed8 R08: ffff8880aa38e600 R09: ffffed1015d064c2
R10: ffffed1015d064c1 R11: ffff8880ae83260b R12: ffff8880872ea980
R13: ffffe8ffffc143d0 R14: 0000000000000000 R15: ffff8880ae832608
 add_event_to_ctx /kernel/events/core.c:2391 [inline]
 __perf_install_in_context+0x4b5/0x960 /kernel/events/core.c:2532
 remote_function /kernel/events/core.c:87 [inline]
 remote_function+0x129/0x1a0 /kernel/events/core.c:67
 flush_smp_call_function_queue+0x147/0x4f0 /kernel/smp.c:243
 generic_smp_call_function_single_interrupt+0x13/0x2b /kernel/smp.c:192
 smp_call_function_single_interrupt+0x9d/0x450 /arch/x86/kernel/smp.c:296
 call_function_single_interrupt+0xf/0x20 /arch/x86/entry/entry_64.S:913
 </IRQ>
RIP: 0010:arch_local_irq_restore /./arch/x86/include/asm/paravirt.h:788 [inline]
RIP: 0010:lock_acquire+0x1ea/0x3f0 /kernel/locking/lockdep.c:3903
Code: 7c 08 00 00 00 00 00 00 48 c1 e8 03 80 3c 10 00 0f 85 c4 01 00 00 48 83 3d 6a c2 1f 07 00 0f 84 38 01 00 00 48 8b 7d c8 57 9d <0f> 1f 44 00 00 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 65 8b
RSP: 0018:ffff8880aa39fbe8 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff04
RAX: 1ffffffff10e4721 RBX: ffff8880aa38e600 RCX: 00000000aaf6f9d1
RDX: dffffc0000000000 RSI: 0000000000000000 RDI: 0000000000000282
RBP: ffff8880aa39fc30 R08: 0000000000004b48 R09: 0000000000000002
R10: ffff8880aa38eed0 R11: 1fff3e9ce2f31908 R12: ffff8880649caf00
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 __raw_spin_lock_bh /./include/linux/spinlock_api_smp.h:135 [inline]
 _raw_spin_lock_bh+0x33/0x50 /kernel/locking/spinlock.c:168
 spin_lock_bh /./include/linux/spinlock.h:334 [inline]
 batadv_nc_purge_paths+0xd8/0x370 /net/batman-adv/network-coding.c:453
 batadv_nc_worker+0x29c/0x760 /net/batman-adv/network-coding.c:731
 process_one_work+0x989/0x1750 /kernel/workqueue.c:2153
 worker_thread+0x98/0xe40 /kernel/workqueue.c:2296
 kthread+0x354/0x420 /kernel/kthread.c:246
 ret_from_fork+0x24/0x30 /arch/x86/entry/entry_64.S:415
Kernel Offset: disabled
Rebooting in 86400 seconds..