panic: kernel diagnostic assertion "nlevel >= IPL_NONE" failed: file "/syzkaller/managers/multicore/kernel/sys/arch/amd64/amd64/intr.c", line 775
Starting stack trace...
panic(ffffffff830f5419) at panic+0x1d0 sys/kern/subr_prf.c:229
__assert(ffffffff830a98ec,ffffffff83007025,307,ffffffff8305f8d2) at __assert+0x29
splraise(dead4110) at splraise+0xbd sys/arch/amd64/amd64/intr.c:775
mtx_enter_try(ffff800001446408) at mtx_enter_try+0x97 sys/kern/kern_lock.c:266
mtx_enter(ffff800001446408) at mtx_enter+0x60 sys/kern/kern_lock.c:239
klist_mutex_lock(ffff800001446408) at klist_mutex_lock+0x32 sys/kern/kern_event.c:2352
klist_invalidate(ffff8000014464c8) at klist_invalidate+0xef klist_lock sys/kern/kern_event.c:2317 [inline]
klist_invalidate(ffff8000014464c8) at klist_invalidate+0xef sys/kern/kern_event.c:2283
bpfsdetach(ffff8000012b8700) at bpfsdetach+0x12f sys/net/bpf.c:1800
bpfdetach(ffff8000012c9000) at bpfdetach+0xa6
if_detach(ffff8000012c9000) at if_detach+0x14f sys/net/if.c:1193
tun_clone_destroy(ffff8000012c9000) at tun_clone_destroy+0x2d6 sys/net/if_tun.c:346
if_clone_destroy(ffff8000372bedc0) at if_clone_destroy+0x1d7 sys/net/if.c:1382
ifioctl(ffff800010fdd4d0,80206979,ffff8000372bedc0,ffff8000371e4ce0) at ifioctl+0x5c5
sys_ioctl(ffff8000371e4ce0,ffff8000372befa0,ffff8000372beef0) at sys_ioctl+0x67c
syscall(ffff8000372befa0) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:178 [inline]
syscall(ffff8000372befa0) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xfe0f14b99a0, count: 241
End of stack trace.
syncing disks...panic: kernel diagnostic assertion "rw_write_held(uobj->vmobjlock)" failed: file "/syzkaller/managers/multicore/kernel/sys/uvm/uvm_vnode.c", line 610
Starting stack trace...
panic(ffffffff830f5419) at panic+0x1d0 sys/kern/subr_prf.c:229
__assert(ffffffff830a98ec,ffffffff82feec09,262,ffffffff83028252) at __assert+0x29
uvn_flush(fffffd806d6eaca0,0,0,31) at uvn_flush+0xdfd sys/uvm/uvm_vnode.c:753
uvm_vnp_sync(ffff800000b66000) at uvm_vnp_sync+0x1e7 sys/uvm/uvm_vnode.c:1541
sys_sync(ffff8000371e4ce0,0,0) at sys_sync+0xd4 sys/kern/vfs_syscalls.c:536
vfs_syncwait(ffff8000371e4ce0,1) at vfs_syncwait+0x44
vfs_shutdown(ffff8000371e4ce0) at vfs_shutdown+0x97 sys/kern/vfs_subr.c:1793
boot(100) at boot+0x15c sys/arch/amd64/amd64/machdep.c:907
reboot(100) at reboot+0xb1
panic(ffffffff830f5419) at panic+0x1f9 sys/kern/subr_prf.c:231
__assert(ffffffff830a98ec,ffffffff83007025,307,ffffffff8305f8d2) at __assert+0x29
splraise(dead4110) at splraise+0xbd sys/arch/amd64/amd64/intr.c:775
mtx_enter_try(ffff800001446408) at mtx_enter_try+0x97 sys/kern/kern_lock.c:266
mtx_enter(ffff800001446408) at mtx_enter+0x60 sys/kern/kern_lock.c:239
klist_mutex_lock(ffff800001446408) at klist_mutex_lock+0x32 sys/kern/kern_event.c:2352
klist_invalidate(ffff8000014464c8) at klist_invalidate+0xef klist_lock sys/kern/kern_event.c:2317 [inline]
klist_invalidate(ffff8000014464c8) at klist_invalidate+0xef sys/kern/kern_event.c:2283
bpfsdetach(ffff8000012b8700) at bpfsdetach+0x12f sys/net/bpf.c:1800
bpfdetach(ffff8000012c9000) at bpfdetach+0xa6
if_detach(ffff8000012c9000) at if_detach+0x14f sys/net/if.c:1193
tun_clone_destroy(ffff8000012c9000) at tun_clone_destroy+0x2d6 sys/net/if_tun.c:346
if_clone_destroy(ffff8000372bedc0) at if_clone_destroy+0x1d7 sys/net/if.c:1382
ifioctl(ffff800010fdd4d0,80206979,ffff8000372bedc0,ffff8000371e4ce0) at ifioctl+0x5c5
sys_ioctl(ffff8000371e4ce0,ffff8000372befa0,ffff8000372beef0) at sys_ioctl+0x67c
syscall(ffff8000372befa0) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:178 [inline]
syscall(ffff8000372befa0) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xfe0f14b99a0, count: 232
End of stack trace.

dump to dev 4,1 not possible
rebooting...
SeaBIOS (version 1.8.2-google)
Total RAM Size = 0x0000000080000000 = 2048 MiB
CPUs found: 2     Max CPUs supported: 2
SeaBIOS (version 1.8.2-google)
Machine UUID 50375c3b-e826-8a7e-06ca-b163c863336b
found virtio-scsi at 0:3
virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0
virtio-scsi blksize=512 sectors=4194304 = 2048 MiB
drive 0x000f27c0: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304
Sending Seabios boot VM event.
Booting from Hard Disk 0...
>> OpenBSD/amd64 BOOT 3.67
boot> set $lines = 0
set: syntax error
boot> set $maxwidth = 0
set: syntax error
boot> show panic
boot: illegal argument panic
boot> trace
boot> show registers
boot> show proc
boot> ps
boot> show all locks
boot> show malloc
boot> show all pools
boot> machine ddbcpu 0
machine: syntax error
boot> trace
boot> machine ddbcpu 1
machine: syntax error
boot> trace