panic() at panic+0x15c sys/kern/subr_prf.c:208 __assert(ffffffff81f44464,ffffffff81ef2c33,36f,ffffffff81f53f58) at __assert+0x2e sys/kern/subr_prf.c:155 unveil_check_final(ffff8000149e6270,ffff800014a18978) at unveil_check_final+0x805 sys/kern/kern_unveil.c:879 namei(ffff800014a18978) at namei+0x88a sys/kern/vfs_lookup.c:232 domknodat(ffff8000149e6270,ffffff9c,20000100,4f7b202c,0) at domknodat+0xa1 sys/kern/vfs_syscalls.c:1405 syscall(ffff800014a18c40) at syscall+0x541 Xsyscall(0,0,ffffffffffffff96,0,3,87afce61010) at Xsyscall+0x128 end of kernel end trace frame: 0x87d95c9c540, count: 7 https://www.openbsd.org/ddb.html describes the minimum info required in bug reports. Insufficient info makes it difficult to find and fix bugs.