WARNING: CPU: 0 PID: 7 at kernel/events/core.c:1833 perf_group_attach+0x3f6/0x4c0 kernel/events/core.c:1833
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 7 Comm: kworker/u4:0 Not tainted 4.19.66 #40
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:1037
RIP: 0010:perf_group_attach+0x3f6/0x4c0 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 27 ff ff ff e8 ba 37 ec ff <0f> 0b e9 5c fd ff ff e8 ae ca 22 00 e9 b9 fc ff ff 48 c7 c7 c0 fa
RSP: 0018:ffff8880ae807ea8 EFLAGS: 00010006
RAX: ffff8880aa2061c0 RBX: ffff888089fd6a00 RCX: ffffffff817f2458
RDX: 0000000000010000 RSI: ffffffff817f2776 RDI: ffff888089fd6c18
RBP: ffff8880ae807ed8 R08: ffff8880aa2061c0 R09: ffffed1015d064c2
R10: ffffed1015d064c1 R11: ffff8880ae83260b R12: ffff88808a3be100
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+0x147/0x4e0 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:915
 </IRQ>
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:789 [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 ca a7 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:ffff8880aa21fc80 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff04
RAX: 1ffffffff10e4899 RBX: ffff8880aa2061c0 RCX: 000000001f7d70d1
RDX: dffffc0000000000 RSI: 0000000000000000 RDI: 0000000000000282
RBP: ffff8880aa21fcc8 R08: 0000000000000000 R09: 0000000000000002
R10: ffff8880aa206a90 R11: 0000000005d84ad8 R12: ffffffff8879f1e0
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000002
 rcu_lock_acquire include/linux/rcupdate.h:242 [inline]
 rcu_read_lock include/linux/rcupdate.h:627 [inline]
 batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:419 [inline]
 batadv_nc_worker+0x117/0x760 net/batman-adv/network-coding.c:730
 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..