kern.securelevel: 0 -> 1 creating runtime link editor directory cache. preserving editor files. starting network daemons: sshd. starting local daemons:. Wed Nov 20 06:36:32 PST 2019 OpenBSD/amd64 (ci-openbsd-multicore-7.c.syzkaller.internal) (tty00) Warning: Permanently added '10.128.15.199' (ECDSA) to the list of known hosts. 2019/11/20 06:37:03 parsed 1 programs 2019/11/20 06:37:08 executed programs: 0 2019/11/20 06:37:13 executed programs: 243 2019/11/20 06:37:18 executed programs: 506 login: uvm_fault(0xfffffd807f008b80, 0xa, 0, 1) -> e kernel: page fault trap, code=0 Stopped at vio_rxeof+0x191: movzwl 0xa(%r15),%eax ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic kernel page fault uvm_fault(0xfffffd807f008b80, 0xa, 0, 1) -> e vio_rxeof(ffff800000173000) at vio_rxeof+0x191 end trace frame: 0xffff800020b49460, count: 0 ddb{0}> trace vio_rxeof(ffff800000173000) at vio_rxeof+0x191 vio_rx_intr(ffff800000173050) at vio_rx_intr+0x4d intr_handler(ffff800020b494c0,ffff80000024db80) at intr_handler+0x8f Xintr_ioapic_edge19_untramp() at Xintr_ioapic_edge19_untramp+0x19f __mp_lock(ffffffff82684cb0) at __mp_lock+0x127 pageflttrap() at pageflttrap+0x6f usertrap(ffff800020b496a0) at usertrap+0x21a recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x7f7ffffdaa50, count: -8 ddb{0}> show registers rdi 0xc rsi 0xc rbp 0xffff800020b49400 rbx 0xffff800000173000 rdx 0 rcx 0xffff8000001a4000 rax 0xc r8 0x2 r9 0 r10 0x190120b82763b61c r11 0x7a261417d422c40c r12 0xffff80000001ce00 r13 0xc r14 0xfffffd807f028100 r15 0 rip 0xffffffff81abe8c1 vio_rxeof+0x191 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800020b49370 ss 0 vio_rxeof+0x191: movzwl 0xa(%r15),%eax ddb{0}> show proc PROC (syz-executor.0) pid=137361 stat=onproc flags process=0 proc=0 pri=52, usrpri=52, nice=20 forw=0xffffffffffffffff, list=0xffff800020abf650,0xffffffff8264a8f8 process=0xffff800020add180 user=0xffff800020b44000, vmspace=0xfffffd807f008b80 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=0, intr=1 ddb{0}>