uvm_fault(0xffffffff83a5d180, 0xffff800021835ff8, 0, 1) -> d kernel: page fault trap, code=0 Stopped at ffs_indirtrunc+0x699: movq 0(%rax,%rbx,8),%rbx TID PID UID PRFLAGS PFLAGS CPU COMMAND *163074 61496 0 0x2 0 0K syz-executor ffs_indirtrunc(fffffd806c5a7398,fffffffffdfff7f3,97a00,ffffffffffffffff,1,ffff80002a37ff58) at ffs_indirtrunc+0x699 sys/ufs/ffs/ffs_inode.c:495 ffs_indirtrunc(fffffd806c5a7398,ffffffffffbff7f2,979e0,ffffffffffffffff,2,ffff80002a380158) at ffs_indirtrunc+0x730 sys/ufs/ffs/ffs_inode.c:499 ffs_truncate(fffffd806c5a7398,0,0,ffffffffffffffff) at ffs_truncate+0x103f sys/ufs/ffs/ffs_inode.c:297 ufs_inactive(ffff80002a3802b0) at ufs_inactive+0x202 sys/ufs/ufs/ufs_inode.c:84 VOP_INACTIVE(fffffd805f680eb0,ffff8000ffff2fa8) at VOP_INACTIVE+0x104 sys/kern/vfs_vops.c:498 vput(fffffd805f680eb0) at vput+0xe5 sys/kern/vfs_subr.c:789 VOP_REMOVE(fffffd8065920c20,fffffd805f680eb0,ffff80002a380418) at VOP_REMOVE+0x199 sys/kern/vfs_vops.c:336 dounlinkat(ffff8000ffff2fa8,ffffff9c,7312ff8502c0,0) at dounlinkat+0x1c4 sys/kern/vfs_syscalls.c:1923 syscall(ffff80002a380590) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a380590) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7312ff850770, count: 5 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{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}>