panic: trap type 4, code=0, pc=ffffffff81cf7304
Starting stack trace...
panic(ffffffff82fda7dd) at panic+0x1d0 sys/kern/subr_prf.c:229
kerntrap(ffff8000371e0fe0) at kerntrap+0x29b sys/arch/amd64/amd64/trap.c:327
alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b
__x86_indirect_thunk_r11() at __x86_indirect_thunk_r11+0x14
rt_clone(ffff8000371e12b8,fffffd8061a1ade8,0) at rt_clone+0x98 sys/net/route.c:383
route_mpath(fffffd8061a1add0,fffffd806a569524,0,0) at route_mpath+0x170 rt_match sys/net/route.c:360 [inline]
route_mpath(fffffd8061a1add0,fffffd806a569524,0,0) at route_mpath+0x170 rtalloc_mpath sys/net/route.c:476 [inline]
route_mpath(fffffd8061a1add0,fffffd806a569524,0,0) at route_mpath+0x170 sys/net/route.c:255
in_pcbselsrc(ffff8000371e13a8,fffffd806a569520,fffffd8061a1ad58) at in_pcbselsrc+0x250
in_pcbconnect(fffffd8061a1ad58,fffffd806a569500) at in_pcbconnect+0x11a sys/netinet/in_pcb.c:522
tcp_connect(ffff800001630300,fffffd806a569500) at tcp_connect+0x3cb sys/netinet/tcp_usrreq.c:654
sys_connect(ffff80002a03ea40,ffff8000371e15d0,ffff8000371e1520) at sys_connect+0x345 sys/kern/uipc_syscalls.c:422
syscall(ffff8000371e15d0) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline]
syscall(ffff8000371e15d0) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x216e3187090, count: 245
End of stack trace.
syncing disks...panic: kernel diagnostic assertion "((flags & PGO_LOCKED) != 0 && rw_lock_held(uobj->vmobjlock)) || (flags & PGO_LOCKED) == 0" failed: file "/syzkaller/managers/multicore/kernel/sys/uvm/uvm_vnode.c", line 955
Starting stack trace...
panic(ffffffff830e1ebe) at panic+0x1d0 sys/kern/subr_prf.c:229
__assert(ffffffff8309b1f0,ffffffff82fdb05c,3bb,ffffffff830b7c55) at __assert+0x29
uvn_get(fffffd806d30dc00,41000,ffff800032d83f10,ffff800032d83d8c,3,1,ff3eb0f3a8628d18,41000) at uvn_get+0x69b sys/uvm/uvm_vnode.c:954
uvm_fault_lower_lookup(ffff800032d83f90,ffff800032d83fc8,ffff800032d83f10) at uvm_fault_lower_lookup+0x10e sys/uvm/uvm_fault.c:1128
uvm_fault_lower(ffff800032d83f90,ffff800032d83fc8,ffff800032d83f10,0) at uvm_fault_lower+0x74 sys/uvm/uvm_fault.c:1227
uvm_fault(fffffd8009302528,110c274000,0,1) at uvm_fault+0x301 sys/uvm/uvm_fault.c:637
upageflttrap(ffff800032d84110,110c274b22) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188
usertrap(ffff800032d84110) at usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0x7c41afd7d380, count: 248
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 69eb9058-0362-23fd-9d6a-f99e4488aea0
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