uvm_fault(0xffffffff82ac6c60, 0x0, 0, 2) -> e kernel: page fault trap, code=0 Stopped at pool_gc_pages+0x1a5: movq %rax,0(%rcx) TID PID UID PRFLAGS PFLAGS CPU COMMAND *109369 55223 0 0x14000 0x200 0 systqmp pool_gc_pages(0) at pool_gc_pages+0x1a5 pool_p_remove sys/kern/subr_pool.c:1049 [inline] pool_gc_pages(0) at pool_gc_pages+0x1a5 sys/kern/subr_pool.c:1576 taskq_thread(ffffffff829882c0) at taskq_thread+0x9b sys/kern/kern_task.c:449 end trace frame: 0x0, count: 13 https://www.openbsd.org/ddb.html describes the minimum info required in bug reports. Insufficient info makes it difficult to find and fix bugs.