uvm_fault(0xffffffff839e2868, 0xffff800029542100, 0, 1) -> d
kernel: page fault trap, code=0
Stopped at      memcpy+0x19:    repe movsq      (%rsi),%es:(%rdi)
    TID    PID    UID     PRFLAGS     PFLAGS  CPU  COMMAND
*468712  21862      0         0x2          0    0  syz-executor
memcpy() at memcpy+0x19
ffs_inode_alloc(fffffd8073230f00,41c0,fffffd8007ffd820,ffff80002a7ab5b8) at ffs_inode_alloc+0x279 sys/ufs/ffs/ffs_alloc.c:393
ufs_mkdir(ffff80002a7ab620) at ufs_mkdir+0xfc sys/ufs/ufs/ufs_vnops.c:1112
VOP_MKDIR(fffffd807322e7c0,ffff80002a7ab780,ffff80002a7ab7b0,ffff80002a7ab6b0) at VOP_MKDIR+0x101 sys/kern/vfs_vops.c:394
domkdirat(ffff80002a789238,ffffff9c,7d297a080150,1c0) at domkdirat+0x179 sys/kern/vfs_syscalls.c:3143
syscall(ffff80002a7ab920) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline]
syscall(ffff80002a7ab920) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7d297a080110, count: 8
https://www.openbsd.org/ddb.html describes the minimum info required in bug
reports.  Insufficient info makes it difficult to find and fix bugs.
ddb> 
ddb> set $lines = 0
ddb> set $maxwidth = 0
ddb>