panic: kernel diagnostic assertion "pg->wire_count == 1" failed: file "/syzkaller/managers/main/kernel/sys/kern/vfs_biomem.c", line 310
Starting stack trace...
panic(ffffffff8284e308) at panic+0x159 sys/kern/subr_prf.c:229
__assert(ffffffff828d46ae,ffffffff828ed8bf,136,ffffffff82898ceb) at __assert+0x29 sys/kern/subr_prf.c:157
buf_free_pages(fffffd807ce7c250) at buf_free_pages+0x1d2 sys/kern/vfs_biomem.c:299
buf_dealloc_mem(fffffd807ce7c250) at buf_dealloc_mem+0xe3 sys/kern/vfs_biomem.c:179
buf_put(fffffd807ce7c250) at buf_put+0x165 sys/kern/vfs_bio.c:130
brelse(fffffd807ce7c250) at brelse+0x5c3 sys/kern/vfs_bio.c:957
vinvalbuf(fffffd8077bf8cb0,2,ffffffffffffffff,ffff80002a6b3298,0,ffffffffffffffff) at vinvalbuf+0x391 sys/kern/vfs_subr.c:2021
ffs_truncate(fffffd805a8a7a50,0,0,ffffffffffffffff) at ffs_truncate+0xebe sys/ufs/ffs/ffs_inode.c:324
ufs_inactive(ffff80002a6a1968) at ufs_inactive+0x152 sys/ufs/ufs/ufs_inode.c:84
VOP_INACTIVE(fffffd8077bf8cb0,ffff80002a6b3298) at VOP_INACTIVE+0xbf sys/kern/vfs_vops.c:489
vput(fffffd8077bf8cb0) at vput+0xa7 sys/kern/vfs_subr.c:779
ufs_remove(ffff80002a6a1a68) at ufs_remove+0x13b sys/ufs/ufs/ufs_vnops.c:601
VOP_REMOVE(fffffd8076ae56c0,fffffd8077bf8cb0,ffff80002a6a1b48) at VOP_REMOVE+0x11c sys/kern/vfs_vops.c:333
dounlinkat(ffff80002a6b3298,ffffff9c,7e2792558310,0) at dounlinkat+0x110 sys/kern/vfs_syscalls.c:1883
syscall(ffff80002a6a1cf0) at syscall+0x5ef sys/arch/amd64/amd64/trap.c:591
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7e27925587c0, count: 241
End of stack trace.
syncing disks...panic: ffs_update: bad link cnt
Starting stack trace...
panic(ffffffff828fd404) at panic+0x159 sys/kern/subr_prf.c:229
ffs_update(fffffd80782b52e0,0) at ffs_update+0x313 sys/ufs/ffs/ffs_inode.c:101
VOP_FSYNC(fffffd806f186610,fffffd807f7d75b0,2,ffff80002a6b3298) at VOP_FSYNC+0xc9 sys/kern/vfs_vops.c:311
ffs_sync_vnode(fffffd806f186610,ffff80002a6a1290) at ffs_sync_vnode+0x184 sys/ufs/ffs/ffs_vfsops.c:1187
vfs_mount_foreach_vnode(ffff8000006d1800,ffffffff81664060,ffff80002a6a1290) at vfs_mount_foreach_vnode+0x55 sys/kern/vfs_subr.c:910
ffs_sync(ffff8000006d1800,2,0,fffffd807f7d75b0,ffff80002a6b3298) at ffs_sync+0x11f sys/ufs/ffs/ffs_vfsops.c:1238
sys_sync(ffff80002a6b3298,0,0) at sys_sync+0xbc sys/kern/vfs_syscalls.c:536
vfs_syncwait(ffff80002a6b3298,1) at vfs_syncwait+0x3a
vfs_shutdown(ffff80002a6b3298) at vfs_shutdown+0x61 sys/kern/vfs_subr.c:1791
boot(100) at boot+0xbf sys/arch/amd64/amd64/machdep.c:901
reboot(100) at reboot+0x7b
panic(ffffffff8284e308) at panic+0x179 sys/kern/subr_prf.c:231
__assert(ffffffff828d46ae,ffffffff828ed8bf,136,ffffffff82898ceb) at __assert+0x29 sys/kern/subr_prf.c:157
buf_free_pages(fffffd807ce7c250) at buf_free_pages+0x1d2 sys/kern/vfs_biomem.c:299
buf_dealloc_mem(fffffd807ce7c250) at buf_dealloc_mem+0xe3 sys/kern/vfs_biomem.c:179
buf_put(fffffd807ce7c250) at buf_put+0x165 sys/kern/vfs_bio.c:130
brelse(fffffd807ce7c250) at brelse+0x5c3 sys/kern/vfs_bio.c:957
vinvalbuf(fffffd8077bf8cb0,2,ffffffffffffffff,ffff80002a6b3298,0,ffffffffffffffff) at vinvalbuf+0x391 sys/kern/vfs_subr.c:2021
ffs_truncate(fffffd805a8a7a50,0,0,ffffffffffffffff) at ffs_truncate+0xebe sys/ufs/ffs/ffs_inode.c:324
ufs_inactive(ffff80002a6a1968) at ufs_inactive+0x152 sys/ufs/ufs/ufs_inode.c:84
VOP_INACTIVE(fffffd8077bf8cb0,ffff80002a6b3298) at VOP_INACTIVE+0xbf sys/kern/vfs_vops.c:489
vput(fffffd8077bf8cb0) at vput+0xa7 sys/kern/vfs_subr.c:779
ufs_remove(ffff80002a6a1a68) at ufs_remove+0x13b sys/ufs/ufs/ufs_vnops.c:601
VOP_REMOVE(fffffd8076ae56c0,fffffd8077bf8cb0,ffff80002a6a1b48) at VOP_REMOVE+0x11c sys/kern/vfs_vops.c:333
dounlinkat(ffff80002a6b3298,ffffff9c,7e2792558310,0) at dounlinkat+0x110 sys/kern/vfs_syscalls.c:1883
syscall(ffff80002a6a1cf0) at syscall+0x5ef sys/arch/amd64/amd64/trap.c:591
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7e27925587c0, count: 230
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 1f64d870-06f2-d8bf-7327-adc6877a2997
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 0x000f28a0: 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 3.65
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