syzbot


panic: acpqauniicr:in g bl kocerknaeblle d ia g no s t i cs alseseeprt i lonoc k w it"h!_ k seprninell_olckoc

Status: closed as invalid on 2022/03/22 11:46
Reported-by: syzbot+d035fa952ab09adf7624@syzkaller.appspotmail.com
First crash: 773d, last: 773d

Sample crash report:
panic: acpqauniicr:in g    bl kocerknaeblle d  ia  g no  s t i cs alseseeprt i lonoc k   w  it"h!_ k seprninell_olckoc  k_  h eorld  (c)r" it  i c al   s e c t  io  n f a i l e d:    f i l e  "  / s y z k a  l leher/lmd  (akneargneresl_/mluolckt)i co  re / k e r  n el  /s y  s / u vm /  u vm  _m  a p . c ",     li &neke  rn 2el7_3l4oc
k
Stopped at     db_enter+0x18:  addq    $0x8,%rsp
    TID    PID    UID     PRFLAGS     PFLAGS  CPU  COMMAND
 377664  98248      0           0  0x4000000    0  syz-executor.3
*314524  76614      0     0x14000      0x200    1  reaper
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440
panic(ffffffff8258f849) at panic+0x177 sys/kern/subr_prf.c:202
__assert(ffffffff826021d1,ffffffff826102ef,aae,ffffffff825c283e) at __assert+0x25 sys/kern/subr_prf.c:161
uvm_map_teardown(fffffd806a880180) at uvm_map_teardown+0x2e8 sys/uvm/uvm_map.c:2736
uvmspace_free(fffffd806a880180) at uvmspace_free+0xa6 sys/uvm/uvm_map.c:3685
reaper(ffff8000210f9a40) at reaper+0x18b sys/kern/kern_exit.c:457
end trace frame: 0x0, count: 9
https://www.openbsd.org/ddb.html describes the minimum info required in bug
reports.  Insufficient info makes it difficult to find and fix bugs.
ddb{1}> 
ddb{1}> set $lines = 0
ddb{1}> set $maxwidth = 0
ddb{1}> show panic
*cpu0: acquiring blockable sleep lock with spinlock or critical section held (kernel_lock) &kernel_lock
 cpu1: kernel diagnostic assertion "!_kernel_lock_held()" failed: file "/syzkaller/managers/multicore/kernel/sys/uvm/uvm_map.c", line 2734
ddb{1}> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440
panic(ffffffff8258f849) at panic+0x177 sys/kern/subr_prf.c:202
__assert(ffffffff826021d1,ffffffff826102ef,aae,ffffffff825c283e) at __assert+0x25 sys/kern/subr_prf.c:161
uvm_map_teardown(fffffd806a880180) at uvm_map_teardown+0x2e8 sys/uvm/uvm_map.c:2736
uvmspace_free(fffffd806a880180) at uvmspace_free+0xa6 sys/uvm/uvm_map.c:3685
reaper(ffff8000210f9a40) at reaper+0x18b sys/kern/kern_exit.c:457
end trace frame: 0x0, count: -6
ddb{1}> show registers
rdi                                0
rsi                              0x1
rbp               0xffff8000211358e0
rbx               0xffff800020ce9bff
rdx                                0
rcx                                0
rax               0xffff8000210f9a40
r8                 0x101010101010101
r9                0x8080808080808080
r10               0x3668811ca06f7a9e
r11               0x85c37cee52148b23
r12               0xffff800020ce9a00
r13                                0
r14               0xffffffff8294ea00    cpu_info_full_primary+0x2a00
r15                              0x1
rip               0xffffffff81f18858    db_enter+0x18
cs                               0x8
rflags                         0x246
rsp               0xffff8000211358d0
ss                                 0
db_enter+0x18:  addq    $0x8,%rsp
ddb{1}> show proc
PROC (reaper) pid=314524 stat=onproc
    flags process=14000<NOZOMBIE,SYSTEM> proc=200<SYSTEM>
    pri=4, usrpri=66, nice=20
    forw=0xffffffffffffffff, list=0xffff8000210f8fc0,0xffff8000210f9cf0
    process=0xffff8000ffffd0a0 user=0xffff800021130000, vmspace=0xffffffff829d33f8
    estcpu=16, cpticks=8, pctcpu=4.48
    user=0, sys=3, intr=0
ddb{1}> ps
   PID     TID   PPID    UID  S       FLAGS  WAIT          COMMAND
 77962  229206  52268      0  2           0                syz-executor.6
 98248  389944  31994      0  2           0                syz-executor.3
 98248  377664  31994      0  7   0x4000000                syz-executor.3
 98248  241315  31994      0  3   0x4000080  fsleep        syz-executor.3
 93717  368175  93270      0  2           0                syz-executor.2
 45200  203515  45740      0  2           0                syz-executor.1
 45200  515928  45740      0  3   0x4000080  fsleep        syz-executor.1
 52268   32829  75927      0  3        0x82  nanoslp       syz-executor.6
 93270  471097  75927      0  3        0x82  nanoslp       syz-executor.2
 47850  470615      0      0  3     0x14200  acct          acct
 19434   79279  75927      0  3        0x82  nanoslp       syz-executor.7
 37062  414726      0      0  3     0x14280  nfsidl        nfsio
  7009  231845      0      0  3     0x14280  nfsidl        nfsio
 25119   43280      0      0  3     0x14280  nfsidl        nfsio
 67422  386836      0      0  3     0x14280  nfsidl        nfsio
 50522  395326      0      0  3     0x14280  nfsidl        nfsio
 74103  324513      0      0  3     0x14280  nfsidl        nfsio
 57153  106016      0      0  3     0x14200  bored         sosplice
 64924   13155  75927      0  3        0x82  nanoslp       syz-executor.5
 74486  318898  75927      0  3        0x82  nanoslp       syz-executor.4
 31994  453795  75927      0  3        0x82  nanoslp       syz-executor.3
 45740  132675  75927      0  3        0x82  nanoslp       syz-executor.1
  9604  420663  75927      0  3        0x82  nanoslp       syz-executor.0
 75927  155872  87285      0  3        0x82  thrsleep      syz-fuzzer
 75927  339485  87285      0  3   0x4000082  thrsleep      syz-fuzzer
 75927  415924  87285      0  3   0x4000082  thrsleep      syz-fuzzer
 75927  423775  87285      0  3   0x4000082  thrsleep      syz-fuzzer
 75927  388571  87285      0  3   0x4000082  thrsleep      syz-fuzzer
 75927  202230  87285      0  3   0x4000082  kqread        syz-fuzzer
 75927  458501  87285      0  3   0x4000082  thrsleep      syz-fuzzer
 75927   61150  87285      0  3   0x4000082  thrsleep      syz-fuzzer
 75927   53058  87285      0  3   0x4000082  thrsleep      syz-fuzzer
 75927  441327  87285      0  3   0x4000082  thrsleep      syz-fuzzer
 87285  430895  61182      0  3    0x10008a  sigsusp       ksh
 61182  352479  66207      0  3        0x9a  kqread        sshd
  3530  444387      1      0  3    0x100083  ttyin         getty
 66207  319435      1      0  3        0x88  kqread        sshd
 70078  164680  33184     74  3   0x1100092  bpf           pflogd
 33184  151784      1      0  3        0x80  netio         pflogd
 87964  434589  23228     73  3   0x1100090  kqread        syslogd
 23228  499414      1      0  3    0x100082  netio         syslogd
 41541  352544      1      0  3    0x100080  kqread        resolvd
 68998  360697   7661     77  3    0x100092  kqread        dhcpleased
 52048  177170   7661     77  3    0x100092  kqread        dhcpleased
  7661  133138      1      0  3        0x80  kqread        dhcpleased
 48036  416485      0      0  3     0x14200  bored         smr
 28237  363259      0      0  2     0x14200                zerothread
 83112  340376      0      0  3     0x14200  aiodoned      aiodoned
 32276  303960      0      0  3     0x14200  syncer        update
 33112  474515      0      0  3     0x14200  cleaner       cleaner
*76614  314524      0      0  7     0x14200                reaper
 19429   52163      0      0  3     0x14200  pgdaemon      pagedaemon
 27584  406071      0      0  3     0x14200  bored         viomb
 73233   11472      0      0  3  0x40014200  acpi0         acpi0
 30157  367080      0      0  3  0x40014200                idle1
 36567  111900      0      0  3     0x14200  bored         softnet
 87348   73754      0      0  3     0x14200  bored         systqmp
 43618  471205      0      0  3     0x14200  bored         systq
 27757   26819      0      0  3  0x40014200  bored         softclock
 60694  332827      0      0  3  0x40014200                idle0
     1  262071      0      0  3        0x82  wait          init
     0       0     -1      0  3     0x10200  scheduler     swapper
ddb{1}> show all locks
CPU 0:
exclusive mutex &table->inpt_mtx r = 0 (0xffffffff82a900b0)
#0  witness_lock+0x44d
#1  mtx_enter_try+0x100
#2  mtx_enter+0x4b sys/kern/kern_lock.c:266
#3  rip6_input+0x1cf
#4  icmp6_input+0x8e8 sys/netinet6/icmp6.c:762
#5  ip_deliver+0x322 sys/netinet/ip_input.c:657
#6  ip6_input_if+0x920
#7  ipv6_input+0x48 sys/netinet6/ip6_input.c:169
#8  if_input_local+0x136 sys/net/if.c:778
#9  ip6_output+0xf57
#10 rip6_output+0x4ad sys/netinet6/raw_ip6.c:490
#11 rip6_usrreq+0x5d3 sys/netinet6/raw_ip6.c:679
#12 sosend+0x632 sys/kern/uipc_socket.c:582
#13 dofilewritev+0x19c sys/kern/sys_generic.c:381
#14 sys_write+0x83 sys/kern/sys_generic.c:301
#15 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline]
#15 syscall+0x489 sys/arch/amd64/amd64/trap.c:585
#16 Xsyscall+0x128
CPU 1:
exclusive mutex amapchunkpl r = 0 (0xffffffff82a60f30)
#0  witness_lock+0x44d
#1  mtx_enter_try+0x100
#2  mtx_enter+0x4b sys/kern/kern_lock.c:266
#3  pool_put+0x8a sys/kern/subr_pool.c:799
#4  amap_free+0x132 sys/uvm/uvm_amap.c:465
#5  amap_wipeout+0x221 sys/uvm/uvm_amap.c:532
#6  uvm_unmap_detach+0x7d sys/uvm/uvm_map.c:1599
#7  uvm_map_teardown+0x262 sys/uvm/uvm_map.c:2789
#8  uvmspace_free+0xa6 sys/uvm/uvm_map.c:3685
#9  reaper+0x18b sys/kern/kern_exit.c:457
#10 proc_trampoline+0x1c
Process 98248 (syz-executor.3) thread 0xffff80002af12550 (377664)
exclusive rwlock netlock r = 0 (0xffffffff828f7720)
#0  witness_lock+0x44d
#1  solock+0x86 sys/kern/uipc_socket2.c:295
#2  sosend+0x517 sys/kern/uipc_socket.c:570
#3  dofilewritev+0x19c sys/kern/sys_generic.c:381
#4  sys_write+0x83 sys/kern/sys_generic.c:301
#5  syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline]
#5  syscall+0x489 sys/arch/amd64/amd64/trap.c:585
#6  Xsyscall+0x128
ddb{1}> show malloc
           Type InUse  MemUse  HighUse   Limit  Requests Type Lim
         devbuf 10194   6488K    6881K  78643K     15043        0
            pcb    46     12K      12K  78643K       192        0
         rtable   211      6K       8K  78643K       722        0
         ifaddr    73     15K      18K  78643K       160        0
         sysctl     2      0K       0K  78643K         2        0
       counters    52     35K      35K  78643K        80        0
       ioctlops     0      0K       4K  78643K      2415        0
            iov     0      0K      16K  78643K       427        0
          mount     1      1K       1K  78643K         1        0
            log     0      0K       0K  78643K         4        0
         vnodes  1332     83K      84K  78643K      2552        0
      UFS quota     1     32K      32K  78643K         1        0
      UFS mount     5     36K      36K  78643K         5        0
            shm     2      1K       5K  78643K        46        0
         VM map     2      1K       1K  78643K         2        0
            sem    12      0K       0K  78643K       285        0
        dirhash    12      2K       2K  78643K        12        0
           ACPI  1697    195K     286K  78643K     12548        0
      file desc    14     49K      89K  78643K      2316        0
          sigio     0      0K       0K  78643K         4        0
           proc    71     87K     136K  78643K       716        0
        subproc   104      6K       6K  78643K       158        0
    NFS srvsock     1      0K       0K  78643K         1        0
     NFS daemon     1     16K      16K  78643K         1        0
    ip_moptions     1      0K       0K  78643K        48        0
       in_multi    79      5K       6K  78643K       206        0
    ether_multi     2      0K       0K  78643K        15        0
            mrt     1      0K       0K  78643K        25        0
    ISOFS mount     1     32K      32K  78643K         1        0
  MSDOSFS mount     1     16K      16K  78643K         1        0
           ttys   175    784K     784K  78643K       175        0
           exec     0      0K       2K  78643K       944        0
            tdb     3      0K       0K  78643K         3        0
        pagedep     1      8K       8K  78643K         1        0
       inodedep     1     32K      32K  78643K         1        0
         newblk     1      0K       0K  78643K         1        0
        VM swap     7     26K      26K  78643K         7        0
       UVM amap   374    280K     285K  78643K     31076        0
       UVM aobj   131      4K       4K  78643K       131        0
        memdesc     1      4K       4K  78643K         1        0
    crypto data     1      1K       1K  78643K         1        0
    ip6_options     2      0K       0K  78643K        77        0
            NDP    10      0K       1K  78643K        56        0
           temp   122   4711K    4783K  78643K     24970        0
         kqueue    12     18K      22K  78643K       107        0
      SYN cache     2     16K      16K  78643K         2        0
ddb{1}> show all pools
Name      Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
plcache    128       22    0        0     1     0     1     1     0     8    0
rtpcb      120      132    0      129     2     1     1     2     0     8    0
rtentry    112      188    0       94     4     0     4     4     0     8    0
unpcb      136     2092    0     2077    27    20     7     9     0     8    6
syncache   296       16    0       16     6     6     0     1     0     8    0
tcpqe       32        4    0        4     2     2     0     1     0     8    0
tcpcb      736      620    0      606    22    20     2     7     0     8    0
arp        120       28    0       12     1     0     1     1     0     8    0
inpcb      312     1398    0     1352    25    21     4     8     0     8    0
rttmr       72       11    0       11     2     2     0     1     0     8    0
nd6         48       48    0       28     1     0     1     1     0     8    0
pkpcb       40        8    0        8     1     1     0     1     0     8    0
kcovpl      48       12    0        4     1     0     1     1     0     8    0
ppxss      1248       6    0        6     2     2     0     1     0     8    0
pffrag     232        9    0        4     1     0     1     1     0   482    0
pffrnode    88        9    0        4     1     0     1     1     0     8    0
pffrent     40       20    0       15     1     0     1     1     0     8    0
pfosfp      40     1428    0     1005     5     0     5     5     0     8    0
pfosfpen   112     1428    0      714    21     0    21    21     0     8    0
pfrktable  1344       1    0        0     1     0     1     1     0     8    0
pfstitem    24       29    0       24     1     0     1     1     0     8    0
pfstkey    112       29    0       24     1     0     1     1     0     8    0
pfstate    320       29    0       24     3     1     2     3     0     8    0
pfrule     1360      25    0       18     2     1     1     2     0     8    0
art_heap8  4096       1    0        0     1     0     1     1     0     8    0
art_heap4  256      694    0      301    32     1    31    32     0     8    2
art_table   32      695    0      301     5     0     5     5     0     8    0
art_node    16      187    0      101     1     0     1     1     0     8    0
sysvmsgpl   40       25    0       13     1     0     1     1     0     8    0
semapl     112      283    0      273     1     0     1     1     0     8    0
shmpl      112      128    0        0     4     0     4     4     0     8    0
dirhash    1024      17    0        0     3     0     3     3     0     8    0
dino2pl    256     4641    0     3197    91     0    91    91     0     8    0
ffsino     272     4641    0     3197    97     0    97    97     0     8    0
nchpl      144     7828    0     6193    63     0    63    63     0     8    0
uvmvnodes   80     5367    0        0   110     0   110   110     0     8    0
vnodes     224     5367    0        0   316     0   316   316     0     8    0
namei      1024   29039    0    29039     3     2     1     2     0     8    1
percpumem   16       52    0       14     1     0     1     1     0     8    0
vcpupl     2048      78    0        0    10     0    10    10     0     8    0
vmpool     560       81    0        3     6     0     6     6     0     8    0
scsiplug    72        9    0        9     2     2     0     1     0     8    0
scxspl     216    20960    0    20960    11    10     1     8     0     8    1
plimitpl   152      239    0      224     1     0     1     1     0     8    0
sigapl     424     2625    0     2572     6     0     6     6     0     8    0
futexpl     64    20111    0    20109     1     0     1     1     0     8    0
knotepl    120      252    0        0     7     0     7     7     0     8    0
kqueuepl   216      465    0      457    16    11     5     8     0     8    4
pipepl     336      754    0      726    16    13     3     8     0     8    0
fdescpl    496     2603    0     2576     6     1     5     5     0     8    1
filepl     152    18131    0    17859    48    30    18    19     0     8    7
lockfpl    104      415    0      413     1     0     1     1     0     8    0
lockfspl    48      146    0      144     1     0     1     1     0     8    0
sessionpl  144       28    0       11     1     0     1     1     0     8    0
pgrppl      48       39    0       22     1     0     1     1     0     8    0
ucredpl     96     4223    0     4211     1     0     1     1     0     8    0
zombiepl   144     2576    0     2572     1     0     1     1     0     8    0
processpl  1064    2625    0     2572     4     0     4     4     0     8    0
procpl     672     6768    0     6701    10     3     7     8     0     8    1
srpgc       96        6    0        6     1     0     1     1     0     8    1
sosppl     168       15    0       14     4     3     1     1     0     8    0
sockpl     480     3634    0     3573   109    96    13    34     0     8    5
mcl64k     65536     15    0        0     2     0     2     2     0     8    0
mcl16k     16384     11    0        0     2     0     2     2     0     8    0
mcl12k     12288     17    0        0     2     0     2     2     0     8    0
mcl9k      9216       6    0        0     1     0     1     1     0     8    0
mcl8k      8192      17    0        0     3     0     3     3     0     8    0
mcl4k      4096      25    0        0     4     1     3     3     0     8    0
mcl2k2     2112       4    0        0     1     0     1     1     0     8    0
mcl2k      2048     205    0        0    21     0    21    21     0     8    0
mtagpl      96      323    0        0     8     0     8     8     0     8    0
mbufpl     256      558    0        0    33     0    33    33     0     8    0
bufpl      288     6706    0      370   453     0   453   453     0     8    0
anonpl      24   729242    0   713569   171    37   134   157     0   186    8
amapchunkpl 152   74899    0    74069    52    14    38    49     0   158    0
amappl16   200     8346    0     7797    67    35    32    53     0     8    2
amappl15   192      149    0      143     1     0     1     1     0     8    0
amappl14   184       24    0       19     1     0     1     1     0     8    0
amappl13   176      467    0      463     1     0     1     1     0     8    0
amappl12   168      783    0      777     2     1     1     1     0     8    0
amappl11   160      327    0      312     1     0     1     1     0     8    0
amappl10   152      634    0      625     1     0     1     1     0     8    0
amappl9    144      637    0      631     1     0     1     1     0     8    0
amappl8    136      718    0      650     3     0     3     3     0     8    0
amappl7    128      135    0      126     1     0     1     1     0     8    0
amappl6    120      398    0      373     2     1     1     2     0     8    0
amappl5    112     2405    0     2385     1     0     1     1     0     8    0
amappl4    104     1269    0     1242     2     1     1     2     0     8    0
amappl3     96     1429    0     1413     1     0     1     1     0     8    0
amappl2     88     1304    0     1254     3     1     2     3     0     8    0
amappl1     80    49076    0    48505    21     7    14    19     0     8    0
amappl      88    30456    0    30192     8     0     8     8     0    92    0
dma4096    4096       1    0        1     1     1     0     1     0     8    0
dma1024    1024       1    0        0     1     0     1     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       18    0       17     1     0     1     1     0     8    0
aobjpl      72      130    0        0     3     0     3     3     0     8    0
uaddrrnd    24     2684    0     2578     1     0     1     1     0     8    0
uaddrbest   32        2    0        0     1     0     1     1     0     8    0
uaddr       24     2684    0     2578     1     0     1     1     0     8    0
vmmpekpl   168    24054    0    24001     3     0     3     3     0     8    0
vmmpepl    168   239737    0   237008   185    50   135   149     0   357    6
vmsppl     368     2683    0     2578    11     1    10    10     0     8    0
rwobjpl     56    65221    0    58162   100     0   100   100     0     8    0
pdppl      4096    5375    0     5234   265   118   147   148     0     8    6
pvpl        32  1303652    0  1283731   309    87   222   246     0   265   26
pmappl     248     2683    0     2578     8     1     7     7     0     8    0
extentpl    40       58    0       38     1     0     1     1     0     8    0
phpool     112     1099    0      180    27     0    27    27     0     8    0
ddb{1}> machine ddbcpu 0
Stopped at      x86_ipi_db+0x1a:        addq    $0x8,%rsp
x86_ipi_db(ffffffff8294dff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:393
x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23
x86_bus_space_io_write_1(3f8,0,a) at x86_bus_space_io_write_1+0x31 sys/arch/amd64/amd64/bus_space.c:759
comcnputc(800,a) at comcnputc+0x128 bus_space_barrier machine/bus.h:481 [inline]
comcnputc(800,a) at comcnputc+0x128 sys/dev/ic/com.c:1263
cnputc(a) at cnputc+0x4b sys/dev/cons.c:239
db_putchar(a) at db_putchar+0x4bd sys/ddb/db_output.c:168
kprintf() at kprintf+0x6ac sys/kern/subr_prf.c:728
db_printf(ffffffff82608896) at db_printf+0x85 sys/kern/subr_prf.c:502
panic(ffffffff825a56b6) at panic+0xd7 sys/kern/subr_prf.c:220
witness_checkorder(ffffffff82b47030,9,0) at witness_checkorder+0x116d sys/kern/subr_witness.c:833
__mp_lock(ffffffff82b46e28) at __mp_lock+0xa1 read_rflags machine/cpufunc.h:195 [inline]
__mp_lock(ffffffff82b46e28) at __mp_lock+0xa1 intr_disable machine/cpufunc.h:216 [inline]
__mp_lock(ffffffff82b46e28) at __mp_lock+0xa1 sys/kern/kern_lock.c:142
selwakeup(fffffd80662348f0) at selwakeup+0x16 klist_empty sys/sys/event.h:361 [inline]
selwakeup(fffffd80662348f0) at selwakeup+0x16 sys/kern/sys_generic.c:885
sorwakeup(fffffd80662347d8) at sorwakeup+0xc9 sys/kern/uipc_socket.c:1699
end trace frame: 0xffff80002e3dc790, count: 0
ddb{0}> trace
x86_ipi_db(ffffffff8294dff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:393
x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23
x86_bus_space_io_write_1(3f8,0,a) at x86_bus_space_io_write_1+0x31 sys/arch/amd64/amd64/bus_space.c:759
comcnputc(800,a) at comcnputc+0x128 bus_space_barrier machine/bus.h:481 [inline]
comcnputc(800,a) at comcnputc+0x128 sys/dev/ic/com.c:1263
cnputc(a) at cnputc+0x4b sys/dev/cons.c:239
db_putchar(a) at db_putchar+0x4bd sys/ddb/db_output.c:168
kprintf() at kprintf+0x6ac sys/kern/subr_prf.c:728
db_printf(ffffffff82608896) at db_printf+0x85 sys/kern/subr_prf.c:502
panic(ffffffff825a56b6) at panic+0xd7 sys/kern/subr_prf.c:220
witness_checkorder(ffffffff82b47030,9,0) at witness_checkorder+0x116d sys/kern/subr_witness.c:833
__mp_lock(ffffffff82b46e28) at __mp_lock+0xa1 read_rflags machine/cpufunc.h:195 [inline]
__mp_lock(ffffffff82b46e28) at __mp_lock+0xa1 intr_disable machine/cpufunc.h:216 [inline]
__mp_lock(ffffffff82b46e28) at __mp_lock+0xa1 sys/kern/kern_lock.c:142
selwakeup(fffffd80662348f0) at selwakeup+0x16 klist_empty sys/sys/event.h:361 [inline]
selwakeup(fffffd80662348f0) at selwakeup+0x16 sys/kern/sys_generic.c:885
sorwakeup(fffffd80662347d8) at sorwakeup+0xc9 sys/kern/uipc_socket.c:1699
rip6_input(ffff80002e3dca98,ffff80002e3dcaa4,3a,18) at rip6_input+0x692 sys/netinet6/raw_ip6.c:224
icmp6_input(ffff80002e3dca98,ffff80002e3dcaa4,3a,18) at icmp6_input+0x8e8 sys/netinet6/icmp6.c:762
ip_deliver(ffff80002e3dca98,ffff80002e3dcaa4,3a,18) at ip_deliver+0x322 sys/netinet/ip_input.c:657
ip6_input_if(ffff80002e3dca98,ffff80002e3dcaa4,29,0,ffff80000019f2a8) at ip6_input_if+0x920
ipv6_input(ffff80000019f2a8,fffffd807daf1200) at ipv6_input+0x48 sys/netinet6/ip6_input.c:169
if_input_local(ffff80000019f2a8,fffffd807daf1200,18) at if_input_local+0x136 sys/net/if.c:778
ip6_output(fffffd807db01c00,ffff800000683f80,fffffd806f67a900,0,0,fffffd806f67a888) at ip6_output+0xf57
rip6_output(fffffd807db01c00,fffffd807eaaf3d8,ffff80002e3dce00,0) at rip6_output+0x4ad sys/netinet6/raw_ip6.c:490
rip6_usrreq(fffffd807eaaf3d8,9,fffffd807db01c00,0,0,ffff80002af12550) at rip6_usrreq+0x5d3 sys/netinet6/raw_ip6.c:679
sosend(fffffd807eaaf3d8,0,ffff80002e3dd038,0,0,0) at sosend+0x632 sys/kern/uipc_socket.c:582
dofilewritev(ffff80002af12550,4,ffff80002e3dd038,0,ffff80002e3dd130) at dofilewritev+0x19c sys/kern/sys_generic.c:381
sys_write(ffff80002af12550,ffff80002e3dd0d8,ffff80002e3dd130) at sys_write+0x83 sys/kern/sys_generic.c:301
syscall(ffff80002e3dd1a0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline]
syscall(ffff80002e3dd1a0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xd815204f250, count: -28
ddb{0}> machine ddbcpu 1
Stopped at      db_enter+0x18:  addq    $0x8,%rsp
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440
panic(ffffffff8258f849) at panic+0x177 sys/kern/subr_prf.c:202
__assert(ffffffff826021d1,ffffffff826102ef,aae,ffffffff825c283e) at __assert+0x25 sys/kern/subr_prf.c:161
uvm_map_teardown(fffffd806a880180) at uvm_map_teardown+0x2e8 sys/uvm/uvm_map.c:2736
uvmspace_free(fffffd806a880180) at uvmspace_free+0xa6 sys/uvm/uvm_map.c:3685
reaper(ffff8000210f9a40) at reaper+0x18b sys/kern/kern_exit.c:457
end trace frame: 0x0, count: 9
ddb{1}> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440
panic(ffffffff8258f849) at panic+0x177 sys/kern/subr_prf.c:202
__assert(ffffffff826021d1,ffffffff826102ef,aae,ffffffff825c283e) at __assert+0x25 sys/kern/subr_prf.c:161
uvm_map_teardown(fffffd806a880180) at uvm_map_teardown+0x2e8 sys/uvm/uvm_map.c:2736
uvmspace_free(fffffd806a880180) at uvmspace_free+0xa6 sys/uvm/uvm_map.c:3685
reaper(ffff8000210f9a40) at reaper+0x18b sys/kern/kern_exit.c:457
end trace frame: 0x0, count: -6

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2022/03/21 15:31 openbsd 4ff57d1d979c e2d91b1d .config console log report ci-openbsd-multicore panic: acpqauniicr:in g bl kocerknaeblle d ia g no s t i cs alseseeprt i lonoc k w it"h!_ k seprninell_olckoc
* Struck through repros no longer work on HEAD.