kern.securelevel: 0 -> 1
creating runtime link editor directory cache.
preserving editor files.
starting network daemons: sshd.
starting local daemons:.
Thu Oct 24 09:39:25 PDT 2019

OpenBSD/amd64 (ci-openbsd-multicore-1.c.syzkaller.internal) (tty00)

Warning: Permanently added '10.128.0.85' (ECDSA) to the list of known hosts.
2019/10/24 09:39:38 parsed 1 programs
2019/10/24 09:39:43 executed programs: 0
2019/10/24 09:39:48 executed programs: 246
2019/10/24 09:39:53 executed programs: 502
login: uvm_fault(0xffffffff82633ef0, 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(0xffffffff82633ef0, 0xa, 0, 1) -> e

vio_rxeof(ffff800000173000) at vio_rxeof+0x191

end trace frame: 0xffff800020a1faa0, count: 0

ddb{0}> trace

vio_rxeof(ffff800000173000) at vio_rxeof+0x191

vio_rx_intr(ffff800000173050) at vio_rx_intr+0x4d

intr_handler(ffff800020a1fb00,ffff80000024db00) at intr_handler+0x8f

Xintr_ioapic_edge19_untramp(0,3,1388,0,0,ffff80000001dae0) at Xintr_ioapic_edge19_untramp+0x19f

acpicpu_idle() at acpicpu_idle+0x331

sched_idle(ffffffff824d4ff0) at sched_idle+0x3f7

end trace frame: 0x0, count: -6

ddb{0}> show registers

rdi                              0xc

rsi                              0xc

rbp               0xffff800020a1fa40

rbx               0xffff800000173000

rdx                                0

rcx               0xffff8000001a4000

rax                              0xc

r8                               0x2

r9                                 0

r10               0x4a13d0a0155010b6

r11               0x39a1b93bc0fbf664

r12               0xffff80000001ce00

r13                              0xc

r14               0xfffffd807f02a200

r15                                0

rip               0xffffffff81a29251    vio_rxeof+0x191

cs                               0x8

rflags                       0x10246    __ALIGN_SIZE+0xf246

rsp               0xffff800020a1f9b0

ss                              0x10

vio_rxeof+0x191:        movzwl  0xa(%r15),%eax

ddb{0}> show proc

PROC (idle0) pid=258082 stat=onproc

    flags process=14000<NOZOMBIE,SYSTEM> proc=40000200<SYSTEM,CPUPEG>

    pri=0, usrpri=50, nice=20

    forw=0x77a3021ec6fae78f, list=0xffff800020a11638,0xffff800020a11158

    process=0xffff800020a12000 user=0xffff800020a1a000, vmspace=0xffffffff82633ef0

    estcpu=0, cpticks=3237, pctcpu=0.0

    user=0, sys=0, intr=1

ddb{0}> ps

   PID     TID   PPID    UID  S       FLAGS  WAIT          COMMAND

 47765  126096  26560      0  3        0x82  nanosleep     syz-executor.0

 26560  327305  53553      0  3        0x82  thrsleep      syz-execprog

 26560  459764  53553      0  3   0x4000082  nanosleep     syz-execprog

 26560  287290  53553      0  3   0x4000082  thrsleep      syz-execprog

 26560  102528  53553      0  3   0x4000082  thrsleep      syz-execprog

 26560  496550  53553      0  3   0x4000082  thrsleep      syz-execprog

 26560  498398  53553      0  3   0x4000082  nanosleep     syz-execprog

 26560  409034  53553      0  3   0x4000082  thrsleep      syz-execprog

 26560  324632  53553      0  3   0x4000082  thrsleep      syz-execprog

 26560   88614  53553      0  3   0x4000082  kqread        syz-execprog

 26560  478413  53553      0  3   0x4000082  thrsleep      syz-execprog

 53553  359158  83618      0  3    0x10008a  pause         ksh

 83618  333504  59046      0  3        0x92  select        sshd

 30559  236946      1      0  3    0x100083  ttyin         getty

 59046  456013      1      0  3        0x80  select        sshd

 63019  221731  24954     74  3    0x100092  bpf           pflogd

 24954  349132      1      0  3        0x80  netio         pflogd

 71340   49429  26609     73  3    0x100090  kqread        syslogd

 26609  386231      1      0  3    0x100082  netio         syslogd

 62674  436712      1     77  3    0x100090  poll          dhclient

 50683  500595      1      0  3        0x80  poll          dhclient

 83398  121527      0      0  3     0x14200  pgzero        zerothread

 51577  296292      0      0  3     0x14200  aiodoned      aiodoned

 56877   50796      0      0  3     0x14200  syncer        update

 97328  274714      0      0  3     0x14200  cleaner       cleaner

 85238  496954      0      0  3     0x14200  reaper        reaper

 56589  508398      0      0  3     0x14200  pgdaemon      pagedaemon

 55672  457358      0      0  3     0x14200  bored         crynlk

 37954  332288      0      0  3     0x14200  bored         crypto

 73306  176697      0      0  3  0x40014200  acpi0         acpi0

 75283  135613      0      0  7  0x40014200                idle1

 53355  176078      0      0  3     0x14200  bored         softnet

 91385  383144      0      0  3     0x14200  bored         systqmp

 53447  283792      0      0  3     0x14200  bored         systq

 94934  170753      0      0  3  0x40014200  bored         softclock

*53354  258082      0      0  7  0x40014200                idle0

 24704  122490      0      0  3     0x14200  bored         smr

     1   73872      0      0  3        0x82  wait          init

     0       0     -1      0  3     0x10200  scheduler     swapper

ddb{0}> show all locks

Process 53354 (idle0) thread 0xffff800020a113c0 (258082)

exclusive kernel_lock &kernel_lock r = 1 (0xffffffff82626710)

#0  witness_lock+0x52e

#1  intr_handler+0x5e

#2  Xintr_ioapic_edge19_untramp+0x19f

#3  acpicpu_idle+0x331

#4  sched_idle+0x3f7

#5  proc_trampoline+0x1c

ddb{0}> show malloc

           Type InUse  MemUse  HighUse   Limit  Requests Type Lim Kern Lim

         devbuf  9457   6385K    6385K  78643K     10544        0        0

            pcb    13      8K       8K  78643K        13        0        0

         rtable    77      2K       2K  78643K       165        0        0

         ifaddr    32      9K       9K  78643K       544        0        0

       counters    39     33K      33K  78643K        39        0        0

       ioctlops     0      0K       4K  78643K      1468        0        0

          mount     1      1K       1K  78643K         1        0        0

         vnodes  1181     74K      74K  78643K      1186        0        0

      UFS quota     1     32K      32K  78643K         1        0        0

      UFS mount     5     36K      36K  78643K         5        0        0

            shm     2      1K       1K  78643K         2        0        0

         VM map     2      1K       1K  78643K         2        0        0

            sem     2      0K       0K  78643K         2        0        0

        dirhash    12      2K       2K  78643K        12        0        0

           ACPI  1808    196K     290K  78643K     12765        0        0

      file desc     2      4K      12K  78643K       529        0        0

           proc    59     63K      83K  78643K       384        0        0

    NFS srvsock     1      0K       0K  78643K         1        0        0

     NFS daemon     1     16K      16K  78643K         1        0        0

       in_multi    22      1K       1K  78643K        22        0        0

    ether_multi     1      0K       0K  78643K         1        0        0

    ISOFS mount     1     32K      32K  78643K         1        0        0

  MSDOSFS mount     1     16K      16K  78643K         1        0        0

           ttys    18     79K      79K  78643K        18        0        0

           exec     0      0K       1K  78643K       199        0        0

        pagedep     1      8K       8K  78643K         1        0        0

       inodedep     1     32K      32K  78643K         1        0        0

         newblk     1      0K       0K  78643K         1        0        0

        VM swap     7     26K      26K  78643K         7        0        0

       UVM amap    74     12K      12K  78643K      1473        0        0

       UVM aobj     2      2K       2K  78643K         2        0        0

        memdesc     1      4K       4K  78643K         1        0        0

    crypto data     1      1K       1K  78643K         1        0        0

            NDP     5      0K       0K  78643K         7        0        0

           temp    48   3542K    3606K  78643K      4357        0        0

      SYN cache     2     16K      16K  78643K         2        0        0

ddb{0}> show all pools

Name      Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle

arp         64        4    0        1     1     0     1     1     0     8    0

plcache    128       20    0        0     1     0     1     1     0     8    0

rtpcb       80       17    0       15     1     0     1     1     0     8    0

rtentry    112       34    0        4     1     0     1     1     0     8    0

unpcb      120       29    0       19     1     0     1     1     0     8    0

syncache   264        5    0        5     1     1     0     1     0     8    0

tcpcb      544        8    0        5     1     0     1     1     0     8    0

inpcb      280      545    0      539     1     0     1     1     0     8    0

nd6         48        2    0        0     1     0     1     1     0     8    0

pfosfp      40      846    0      423     5     0     5     5     0     8    0

pfosfpen   112     1428    0      714    21     0    21    21     0     8    0

pfstitem    24       11    0        0     1     0     1     1     0     8    0

pfstkey    112       11    0        0     1     0     1     1     0     8    0

pfstate    328       11    0        0     1     0     1     1     0     8    0

pfrule     1360      21    0       16     2     1     1     2     0     8    0

art_heap8  4096       1    0        0     1     0     1     1     0     8    0

art_heap4  256      167    0        2    11     0    11    11     0     8    0

art_table   32      168    0        2     2     0     2     2     0     8    0

art_node    16       33    0        6     1     0     1     1     0     8    0

dirhash    1024      17    0        0     3     0     3     3     0     8    0

dino1pl    128     1933    0      531    46     0    46    46     0     8    0

ffsino     272     1933    0      531    94     0    94    94     0     8    0

nchpl      144     2683    0     1072    60     0    60    60     0     8    0

uvmvnodes   72     1943    0        0    36     0    36    36     0     8    0

vnodes     208     1943    0        0   103     0   103   103     0     8    0

namei      1024    6186    0     6186     1     0     1     1     0     8    1

percpumem   16       30    0        0     1     0     1     1     0     8    0

scxspl     192     7324    0     7324     8     1     7     7     0     8    7

plimitpl   152       15    0        8     1     0     1     1     0     8    0

sigapl     432      737    0      724     2     0     2     2     0     8    0

knotepl    112       39    0       28     1     0     1     1     0     8    0

kqueuepl   104        2    0        0     1     0     1     1     0     8    0

pipepl     112      154    0      141     1     0     1     1     0     8    0

fdescpl    488      738    0      724     3     0     3     3     0     8    0

filepl     152     2143    0     2085     3     0     3     3     0     8    0

lockfpl    104        5    0        4     1     0     1     1     0     8    0

lockfspl    48        3    0        2     1     0     1     1     0     8    0

sessionpl  112       19    0        9     1     0     1     1     0     8    0

pgrppl      48       19    0        9     1     0     1     1     0     8    0

ucredpl     96       52    0       43     1     0     1     1     0     8    0

zombiepl   144      724    0      723     1     0     1     1     0     8    0

processpl  896      753    0      723     4     0     4     4     0     8    0

procpl     632      762    0      723     4     0     4     4     0     8    0

sockpl     384      591    0      573     2     0     2     2     0     8    0

mcl4k      4096       4    0        0     1     0     1     1     0     8    0

mcl2k      2048      75    0        0    10     0    10    10     0     8    0

mtagpl      80        1    0        0     1     0     1     1     0     8    0

mbufpl     256      112    0        0     6     0     6     6     0     8    0

bufpl      256     6398    0     1314   318     0   318   318     0     8    0

anonpl      16    36050    0    33500    14     3    11    13     0   124    0

amapchunkpl 152    1281    0     1196     5     1     4     5     0   158    0

amappl16   192     2265    0     2173     5     0     5     5     0     8    0

amappl14   176       21    0       20     1     0     1     1     0     8    0

amappl13   168        8    0        7     1     0     1     1     0     8    0

amappl12   160       10    0        7     1     0     1     1     0     8    0

amappl11   152       49    0       34     1     0     1     1     0     8    0

amappl10   144        9    0        7     1     0     1     1     0     8    0

amappl9    136      972    0      966     1     0     1     1     0     8    0

amappl8    128      654    0      639     1     0     1     1     0     8    0

amappl7    120       34    0       30     1     0     1     1     0     8    0

amappl6    112       74    0       66     1     0     1     1     0     8    0

amappl5    104      126    0      112     1     0     1     1     0     8    0

amappl4     96     1010    0      982     1     0     1     1     0     8    0

amappl3     88      116    0      111     1     0     1     1     0     8    0

amappl2     80     1965    0     1906     3     1     2     3     0     8    0

amappl1     72    19491    0    19076    25    12    13    20     0     8    3

amappl      80      991    0      961     1     0     1     1     0    84    0

dma4096    4096       1    0        1     1     1     0     1     0     8    0

dma256     256        6    0        6     1     1     0     1     0     8    0

dma128     128      253    0      253     1     1     0     1     0     8    0

dma64       64        6    0        6     1     1     0     1     0     8    0

dma32       32        7    0        7     1     1     0     1     0     8    0

dma16       16       17    0       17     1     1     0     1     0     8    0

aobjpl      64        1    0        0     1     0     1     1     0     8    0

uaddrrnd    24      738    0      724     1     0     1     1     0     8    0

uaddrbest   32        2    0        0     1     0     1     1     0     8    0

uaddr       24      738    0      724     1     0     1     1     0     8    0

vmmpekpl   168     7441    0     7418     2     0     2     2     0     8    0

vmmpepl    168    55881    0    54892    86    11    75    80     0   357   31

vmsppl     368      737    0      724     2     0     2     2     0     8    0

pdppl      4096    1483    0     1448     6     1     5     6     0     8    0

pvpl        32   166814    0   161750   115     4   111   115     0   265   70

pmappl     232      737    0      724     1     0     1     1     0     8    0

extentpl    40       41    0       26     1     0     1     1     0     8    0

phpool     112      458    0        4    13     0    13    13     0     8    0