uvm_fault(0xffffffff83a79cc8, 0xffff800029ef5000, 0, 1) -> e kernel: page fault trap, code=0 Stopped at pvclock_get+0x53: movl 0(%r15),%r12d TID PID UID PRFLAGS PFLAGS CPU COMMAND * 57971 83658 0 0 0x4000000 0 syz-executor pvclock_get(ffffffff8386c770) at pvclock_get+0x53 pvclock_read_begin sys/dev/pv/pvclock.c:278 [inline] pvclock_get(ffffffff8386c770) at pvclock_get+0x53 sys/dev/pv/pvclock.c:333 nanouptime(ffff80003c4f5c50) at nanouptime+0x61 tc_delta sys/kern/kern_tc.c:138 [inline] nanouptime(ffff80003c4f5c50) at nanouptime+0x61 binuptime sys/kern/kern_tc.c:191 [inline] nanouptime(ffff80003c4f5c50) at nanouptime+0x61 sys/kern/kern_tc.c:217 clock_gettime(ffff80002a78cd10,3,ffff80003c4f5c50) at clock_gettime+0xab sys/kern/kern_time.c:129 sys_clock_gettime(ffff80002a78cd10,ffff80003c4f5d70,ffff80003c4f5cc0) at sys_clock_gettime+0x57 sys/kern/kern_time.c:173 syscall(ffff80003c4f5d70) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c4f5d70) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xba920870900, count: 9 https://www.openbsd.org/ddb.html describes the minimum info required in bug reports. Insufficient info makes it difficult to find and fix bugs.