panic: kernel diagnostic assertion "nlevel >= IPL_NONE" failed:

[syzbot]

Hello,

syzbot found the following issue on:

HEAD commit: f714f513178d remove unneeded includes
git tree: openbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=11349430580000
kernel config: https://syzkaller.appspot.com/x/.config?x=1bc15e68cd2a49e5
dashboard link: https://syzkaller.appspot.com/bug?extid=87d972999608b98202f8

Unfortunately, I don't have any reproducer for this issue yet.

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/796cd030feeb/disk-f714f513.raw.xz
bsd.gdb: https://storage.googleapis.com/syzbot-assets/4ebcedb3eed9/bsd-f714f513.gdb.xz
kernel image: https://storage.googleapis.com/syzbot-assets/fab3aa212784/kernel-f714f513.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+87d972...@syzkaller.appspotmail.com

panic: kernel diagnostic assertion "nlevel >= IPL_NONE" failed:
file "/syzkaller/managers/main/kernel/sys/arch/amd64/amd64/int
r.c", line 775
Starting stack trace...
panic(ffffffff830b2cf8) at panic+0x1ba sys/kern/subr_prf.c:229
__assert(ffffffff83067aec,ffffffff83063f08,307,ffffffff8301f002) at __assert+0x29
splraise(deafbead) at splraise+0xad sys/arch/amd64/amd64/intr.c:775
mtx_enter(ffff800001359c08) at mtx_enter+0x9e sys/kern/kern_lock.c:308
klist_mutex_lock(ffff800001359c08) at klist_mutex_lock+0x32 sys/kern/kern_event.c:2352
klist_invalidate(ffff800001359ca8) at klist_invalidate+0xe6 klist_lock sys/kern/kern_event.c:2317 [inline]
klist_invalidate(ffff800001359ca8) at klist_invalidate+0xe6 sys/kern/kern_event.c:2283
bpfsdetach(ffff80000130e940) at bpfsdetach+0xff sys/net/bpf.c:1800
bpfdetach(ffff80000128c000) at bpfdetach+0x76
if_detach(ffff80000128c000) at if_detach+0x14f sys/net/if.c:1193
tun_clone_destroy(ffff80000128c000) at tun_clone_destroy+0x2aa sys/net/if_tun.c:338
if_clone_destroy(ffff800035a3d9e0) at if_clone_destroy+0x1d7 sys/net/if.c:1382
sys_ioctl(ffff800037616530,ffff800035a3dbc0,ffff800035a3db10) at sys_ioctl+0x678
syscall(ffff800035a3dbc0) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xbc616e3da80, count: 243
End of stack trace.


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[syzbot]

Auto-closing this bug as obsolete.
Crashes did not happen for a while, no reproducer and no activity.