panic: voWARNpI_NgGe:n SePLr iNc_ObT adLOoWpE REDS OtN oSpYSpCeAdL L at73 189157376 EXIT 0 a db_enter+0x1c: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *364182 45323 0 0 0x4000000 0K syz-executor.3 62960 74236 0 0x12 0 1 sshd db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff827845b5) at panic+0x17b sys/kern/subr_prf.c:198 vop_generic_badop(ffff80002afab228) at vop_generic_badop+0x1f sys/kern/vfs_default.c:133 VOP_STRATEGY(fffffd8069136478,fffffd805b8436d0) at VOP_STRATEGY+0x9f sys/kern/vfs_vops.c:628 bwrite(fffffd805b8436d0) at bwrite+0x1f4 sys/kern/vfs_bio.c:760 VOP_BWRITE(fffffd805b8436d0) at VOP_BWRITE+0x4e sys/kern/vfs_vops.c:640 ffs_truncate(fffffd80656d3220,400,0,fffffd807f7d78f0) at ffs_truncate+0x726 sys/ufs/ffs/ffs_inode.c:223 ufs_setattr(ffff80002afab590) at ufs_setattr+0x6c1 sys/ufs/ufs/ufs_vnops.c:407 VOP_SETATTR(fffffd8069136478,ffff80002afab618,fffffd807f7d78f0,ffff8000211f35d0) at VOP_SETATTR+0xdd sys/kern/vfs_vops.c:210 dotruncate(ffff8000211f35d0,fffffd8069136478,400) at dotruncate+0x13e sys/kern/vfs_syscalls.c:2821 sys_truncate(ffff8000211f35d0,ffff80002afab820,ffff80002afab870) at sys_truncate+0xe1 sys/kern/vfs_syscalls.c:2846 syscall(ffff80002afab8f0) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff80002afab8f0) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:632 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xfc145662860, count: 2 https://www.openbsd.org/ddb.html describes the minimum info required in bug reports. Insufficient info makes it difficult to find and fix bugs.