uvm_fault(0xfffffd800b0633d0, 0x98, 0, 1) -> e fatal page fault in supervisor mode trap type 6 code 0 rip ffffffff813c7438 cs 8 rflags 10246 cr2 98 cpl 0 rsp ffff800038fb37e0 gsbase 0xffff8000299adff0 kgsbase 0x0 panic: trap type 6, code=0, pc=ffffffff813c7438 Starting stack trace... panic(ffffffff83484b91) at panic+0x1d0 sys/kern/subr_prf.c:229 kerntrap(ffff800038fb3730) at kerntrap+0x30b alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b dovutimens(ffff8000357a4020,fffffd806f1b51c8,ffff800038fb38f0) at dovutimens+0x368 sys/kern/vfs_syscalls.c:2771 sys_futimens(ffff8000357a4020,ffff800038fb3a40,ffff800038fb3990) at sys_futimens+0xb3 sys/kern/vfs_syscalls.c:2847 syscall(ffff800038fb3a40) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800038fb3a40) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x273425c5980, count: 250 End of stack trace. WARNING: SPL NOT LOWERED ON SYSCALL 83 -1348398448 EXIT 0 4 Stopped at savectx+0xae: movl $0,%gs:0x688 TID PID UID PRFLAGS PFLAGS CPU COMMAND *226415 32434 0 0 0x4000000 1 syz-executor 278505 1350 0 0x2 0x1 0 syz-executor savectx() at savectx+0xae end of kernel end trace frame: 0x273968290e0, count: 14 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{1}>