Warning: Permanently added '10.128.0.4' (ECDSA) to the list of known hosts. 2018/12/06 20:12:15 parsed 1 programs 2018/12/06 20:12:19 executed programs: 0 uvm_fault(0xffffff007f12b000, 0x6000100, 0, 1) -> e kernel: page fault trap, code=0 Stopped at switchwrite+0x98: movq 0(%r13),%rbx ddb> ddb> set $lines = 0 ddb> show panic kernel page fault uvm_fault(0xffffff007f12b000, 0x6000100, 0, 1) -> e switchwrite(ffffff007edc5b50,ffffff007edc5b50,ffff80002116eae8) at switchwrite+0x98 end trace frame: 0xffff80002116e9c0, count: 0 ddb> trace switchwrite(ffffff007edc5b50,ffffff007edc5b50,ffff80002116eae8) at switchwrite+0x98 spec_write(ffffffff81e20158) at spec_write+0xa0 VOP_WRITE(2c,ffffff007edc5b50,1,ffff80002116eae8) at VOP_WRITE+0x65 vn_write(ffffff006e4814b8,ffff80002116eae8,2c) at vn_write+0x127 dofilewritev(ffff8000ffffd070,ffff80002116eb90,2c,ffff80002116eba8,b4bfb58f778) at dofilewritev+0x13e sys_write(ffff80002116ec30,ffff8000ffffd070,ffff800021060620) at sys_write+0x6e syscall(0) at syscall+0x3e4 Xsyscall(6,0,c,0,3,b49f6645010) at Xsyscall+0x128 end of kernel end trace frame: 0xb4bfb58f800, count: -8 ddb> show registers rdi 0xffffffff81e3b4f8 switch_ifs_lk rsi 0xffff80002116eae8 rbp 0xffff80002116e940 rbx 0x6000100 __kernel_end_phys+0x4000100 rdx 0x1 rcx 0x2158 __ALIGN_SIZE+0x1158 rax 0 r8 0xffff80002116eb90 r9 0 r10 0 r11 0xffffffff81770030 switchwrite r12 0x2c r13 0x6000100 __kernel_end_phys+0x4000100 r14 0xffff800000adbd00 r15 0xffff80002116eae8 rip 0xffffffff817700c8 switchwrite+0x98 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002116e8e0 ss 0x10 switchwrite+0x98: movq 0(%r13),%rbx ddb> show proc PROC (syz-executor1) pid=161477 stat=onproc flags process=0 proc=4000000 pri=50, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffffcbc0,0xffff8000ffffc018 process=0xffff800021060620 user=0xffff800021169000, vmspace=0xffffff007f12b000 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 18557 241626 57723 0 2 0 syz-executor0 18557 51607 57723 0 3 0x4000080 fsleep syz-executor0 58002 136412 70401 0 2 0 syz-executor1 *58002 161477 70401 0 7 0x4000000 syz-executor1 70401 309373 25551 0 3 0x82 nanosleep syz-executor1 57723 162490 25551 0 3 0x82 nanosleep syz-executor0 25551 405318 48735 0 3 0x82 thrsleep syz-execprog 25551 167749 48735 0 3 0x4000082 thrsleep syz-execprog 25551 165535 48735 0 3 0x4000082 thrsleep syz-execprog 25551 449341 48735 0 3 0x4000082 thrsleep syz-execprog 25551 171799 48735 0 3 0x4000082 kqread syz-execprog 25551 492161 48735 0 3 0x4000082 thrsleep syz-execprog 25551 250714 48735 0 3 0x4000082 thrsleep syz-execprog 48735 55413 13897 0 3 0x10008a pause ksh 13897 108416 51635 0 3 0x92 select sshd 10927 193025 1 0 3 0x100083 ttyin getty 51635 290692 1 0 3 0x80 select sshd 73945 186713 74864 73 2 0x100090 syslogd 74864 392415 1 0 3 0x100082 netio syslogd 57368 434840 1 77 3 0x100090 poll dhclient 83854 507653 1 0 3 0x80 poll dhclient 77742 305485 0 0 2 0x14200 zerothread 62096 478707 0 0 3 0x14200 aiodoned aiodoned 6384 231572 0 0 3 0x14200 syncer update 8009 420939 0 0 3 0x14200 cleaner cleaner 47686 380183 0 0 3 0x14200 reaper reaper 30845 330348 0 0 3 0x14200 pgdaemon pagedaemon 17234 7885 0 0 3 0x14200 bored crynlk 71724 183555 0 0 3 0x14200 bored crypto 2156 301175 0 0 3 0x40014200 acpi0 acpi0 12260 11147 0 0 3 0x14200 bored softnet 9997 215893 0 0 3 0x14200 bored systqmp 23253 373152 0 0 3 0x14200 bored systq 80672 53332 0 0 3 0x40014200 bored softclock 17656 452867 0 0 3 0x40014200 idle0 1 334334 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper