panic: uvm_fault_unwire_locked: address not in map Starting stack trace... WARNING: pSaPL nNOT LOWERED ON SYSCALL 121 5 EXIT 0 a Stopped at savectx+0xae: movl $0,%gs:0x688 TID PID UID PRFLAGS PFLAGS CPU COMMAND 255025 67293 0 0 0x4000000 0 syz-executor *456581 74526 0 0 0x4000000 1 syz-executor savectx() at savectx+0xae end of kernel end trace frame: 0x76d108dada0, 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.