kernel: protection fault trap, code=0

Stopped at      witness_checkorder+0xb5:        movl    0x20(%r14),%r15d

ddb{0}> serialport: Connected to syzkaller.us-central1-f.ci-openbsd-setuid-1 port 1 (session ID: 71a6c5def08664d8a42bb4ae51df0d7c9ca93e79236e214f5c7f0e7d1c459edc, active connections: 1).