syzbot


pool: free list modified: shmpl (4)

Status: auto-obsoleted due to no activity on 2024/02/11 22:36
Reported-by: syzbot+6b6dd0b61a44ffdb0b08@syzkaller.appspotmail.com
First crash: 170d, last: 170d
Similar bugs (3)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
openbsd pool: free list modified: shmpl (3) 1 1428d 1428d 0/3 auto-closed as invalid on 2020/09/01 15:24
openbsd pool: free list modified: shmpl C 22 1793d 1887d 3/3 fixed on 2019/10/29 17:45
openbsd pool: free list modified: shmpl (2) 1 1609d 1609d 0/3 auto-closed as invalid on 2020/03/04 23:09

Sample crash report:
panic: pool_do_get: shmpl free list modified: page 0xfffffd80784ca000; item addr 0xfffffd80784ca9a0; offset 0x2c=0xdead410f
Stopped at      db_enter+0x1c:  addq    $0x8,%rsp
    TID    PID    UID     PRFLAGS     PFLAGS  CPU  COMMAND
 459457  83516      0           0          0    0  syz-executor.7
*461919  83516      0           0  0x4000000    1K syz-executor.7
db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff82813cd5) at panic+0x17b sys/kern/subr_prf.c:198
pool_do_get(ffffffff82d8dbd0,1,ffff80002e429378) at pool_do_get+0x484 sys/kern/subr_pool.c:739
pool_get(ffffffff82d8dbd0,1) at pool_get+0xed sys/kern/subr_pool.c:582
shmget_allocate_segment(ffff8000211da818,ffff80002e429500,1a9,ffff80002e429550) at shmget_allocate_segment+0x15b sys/kern/sysv_shm.c:417
sys_shmget(ffff8000211da818,ffff80002e429500,ffff80002e429550) at sys_shmget+0x13b sys/kern/sysv_shm.c:480
syscall(ffff80002e4295d0) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
syscall(ffff80002e4295d0) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x856c12368a0, count: 7
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
*cpu1: pool_do_get: shmpl free list modified: page 0xfffffd80784ca000; item addr 0xfffffd80784ca9a0; offset 0x2c=0xdead410f
ddb{1}> trace
db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff82813cd5) at panic+0x17b sys/kern/subr_prf.c:198
pool_do_get(ffffffff82d8dbd0,1,ffff80002e429378) at pool_do_get+0x484 sys/kern/subr_pool.c:739
pool_get(ffffffff82d8dbd0,1) at pool_get+0xed sys/kern/subr_pool.c:582
shmget_allocate_segment(ffff8000211da818,ffff80002e429500,1a9,ffff80002e429550) at shmget_allocate_segment+0x15b sys/kern/sysv_shm.c:417
sys_shmget(ffff8000211da818,ffff80002e429500,ffff80002e429550) at sys_shmget+0x13b sys/kern/sysv_shm.c:480
syscall(ffff80002e4295d0) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
syscall(ffff80002e4295d0) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x856c12368a0, count: -8
ddb{1}> show registers
rdi                                0
rsi                              0x1
rbp               0xffff80002e4291c0
rbx               0xffff800020d49ba7
rdx               0xffff800000d343c0
rcx               0xffff8000211da818
rax               0xffff800020d48ff0
r8                 0x101010101010101
r9                0x8080808080808080
r10               0xfd206507711f0924
r11               0x1289c3198f28529f
r12               0xffff800020d499a8
r13                                0
r14                                0
r15                              0x1
rip               0xffffffff814b969c    db_enter+0x1c
cs                               0x8
rflags                         0x246
rsp               0xffff80002e4291b0
ss                              0x10
db_enter+0x1c:  addq    $0x8,%rsp
ddb{1}> show proc
PROC (syz-executor.7) tid=461919 pid=83516 tcnt=2 stat=onproc
    flags process=0 proc=4000000<THREAD>
    runpri=32, usrpri=78, slppri=32, nice=20
    wchan=0x0, wmesg=, ps_single=0x0
    forw=0xffffffffffffffff, list=0xffff8000211dad68,0xffff8000211ce570
    process=0xffff8000ffff90c8 user=0xffff80002e424000, vmspace=0xfffffd806efc41d8
    estcpu=28, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0
ddb{1}> ps
   PID     TID   PPID    UID  S       FLAGS  WAIT          COMMAND
 97856  491079  54945      0  2           0                syz-executor.5
 97856  457355  54945      0  3   0x4000080  fsleep        syz-executor.5
 27376   89829  78574      0  2           0                syz-executor.4
 27376  272994  78574      0  3   0x4000080  fsleep        syz-executor.4
 27376  339879  78574      0  3   0x4000080  fsleep        syz-executor.4
 27376  361216  78574      0  3   0x4000080  fsleep        syz-executor.4
 64213  506628  87528      0  2           0                syz-executor.0
 64213  220833  87528      0  3   0x4000080  kqread        syz-executor.0
 52324   78397  49103      0  2           0                syz-executor.1
 52324  518221  49103      0  3   0x4000080  fsleep        syz-executor.1
 52324  135571  49103      0  2   0x4000000                syz-executor.1
 29909  275201  94975      0  2           0                syz-executor.6
 29909  160639  94975      0  3   0x4000080  fsleep        syz-executor.6
 83516  459457  76234      0  7           0                syz-executor.7
*83516  461919  76234      0  7   0x4000000                syz-executor.7
 92088  376415   4589      0  2           0                syz-executor.2
 92088  279304   4589      0  3   0x4000080  fsleep        syz-executor.2
 92088  239810   4589      0  3   0x4000080  fsleep        syz-executor.2
 88277  164962      0      0  3     0x14200  bored         sosplice
 49103   74924    415      0  3        0x82  nanoslp       syz-executor.1
  4589  498209    415      0  3        0x82  nanoslp       syz-executor.2
 78574  515143    415      0  3        0x82  nanoslp       syz-executor.4
 76234  214598    415      0  3        0x82  nanoslp       syz-executor.7
 94975   60021    415      0  3        0x82  nanoslp       syz-executor.6
 54945  485965    415      0  3        0x82  nanoslp       syz-executor.5
 27877   17462    415      0  3        0x82  nanoslp       syz-executor.3
 87528   88697    415      0  3        0x82  nanoslp       syz-executor.0
   415  267336   4944      0  3   0x2000082  kqread        syz-fuzzer
   415  263416   4944      0  3   0x6000082  nanoslp       syz-fuzzer
   415  518970   4944      0  3   0x6000082  thrsleep      syz-fuzzer
   415  200061   4944      0  3   0x6000082  wait          syz-fuzzer
   415   25427   4944      0  3   0x6000082  thrsleep      syz-fuzzer
   415  247047   4944      0  3   0x6000082  wait          syz-fuzzer
   415   44200   4944      0  3   0x6000082  wait          syz-fuzzer
   415  350181   4944      0  3   0x6000082  wait          syz-fuzzer
   415  237208   4944      0  3   0x6000082  thrsleep      syz-fuzzer
   415  139808   4944      0  3   0x6000082  thrsleep      syz-fuzzer
   415  300586   4944      0  3   0x6000082  thrsleep      syz-fuzzer
   415  218214   4944      0  3   0x6000082  wait          syz-fuzzer
   415  523296   4944      0  3   0x6000082  wait          syz-fuzzer
   415  389926   4944      0  3   0x6000082  wait          syz-fuzzer
   415  446670   4944      0  3   0x6000082  wait          syz-fuzzer
  4944  348323  35810      0  3    0x10008a  sigsusp       ksh
 35810  491999  77068      0  3        0x9a  kqread        sshd
 90354  112621      1      0  3    0x100083  ttyin         getty
 77068  286645      1      0  3        0x88  kqread        sshd
 30429   42944  62180     74  3   0x1100092  bpf           pflogd
 62180  499595      1      0  3        0x80  netio         pflogd
 92822  360985  67665     73  3   0x1100090  kqread        syslogd
 67665   29763      1      0  3    0x100082  netio         syslogd
 30523   54753      1      0  3    0x100080  kqread        resolvd
 17720  399364  66640     77  3    0x100092  kqread        dhcpleased
 11515   22108  66640     77  3    0x100092  kqread        dhcpleased
 66640   79691      1      0  3        0x80  kqread        dhcpleased
 31637   85186      0      0  3     0x14200  bored         smr
 86310  498722      0      0  2     0x14200                zerothread
 23103  320960      0      0  3     0x14200  aiodoned      aiodoned
 39354  122000      0      0  3     0x14200  syncer        update
 53631  293314      0      0  3     0x14200  cleaner       cleaner
 70883  362172      0      0  3     0x14200  reaper        reaper
 49721   20420      0      0  3     0x14200  pgdaemon      pagedaemon
 51096  119659      0      0  3     0x14200  bored         viomb
 39642  309072      0      0  3  0x40014200  acpi0         acpi0
 55739   65767      0      0  3  0x40014200                idle1
 11736  511529      0      0  3     0x14200  bored         softnet3
 46572  365322      0      0  3     0x14200  bored         softnet2
 25889  430907      0      0  3     0x14200  bored         softnet1
 29445  267967      0      0  3     0x14200  bored         softnet0
  9903  197994      0      0  3     0x14200  bored         systqmp
 91992  351290      0      0  3     0x14200  bored         systq
 57933  472536      0      0  3     0x14200  tmoslp        softclockmp
 68710   29132      0      0  3  0x40014200  tmoslp        softclock
 34345   58313      0      0  3  0x40014200                idle0
     1  457882      0      0  3        0x82  wait          init
     0       0     -1      0  3     0x10200  scheduler     swapper
ddb{1}> show all locks
CPU 1:
exclusive mutex shmpl r = 0 (0xffffffff82d8dbe0)
#0  witness_lock+0x447
#1  mtx_enter_try+0x104
#2  mtx_enter+0x4f sys/kern/kern_lock.c:266
#3  pool_get+0xc1 sys/kern/subr_pool.c:579
#4  shmget_allocate_segment+0x15b sys/kern/sysv_shm.c:417
#5  sys_shmget+0x13b sys/kern/sysv_shm.c:480
#6  syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
#6  syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623
#7  Xsyscall+0x128
Process 83516 (syz-executor.7) thread 0xffff8000211da818 (461919)
exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82d80f00)
#0  witness_lock+0x447
#1  syscall+0x5cd mi_syscall sys/sys/syscall_mi.h:110 [inline]
#1  syscall+0x5cd sys/arch/amd64/amd64/trap.c:623
#2  Xsyscall+0x128
exclusive mutex shmpl r = 0 (0xffffffff82d8dbe0)
#0  witness_lock+0x447
#1  mtx_enter_try+0x104
#2  mtx_enter+0x4f sys/kern/kern_lock.c:266
#3  pool_get+0xc1 sys/kern/subr_pool.c:579
#4  shmget_allocate_segment+0x15b sys/kern/sysv_shm.c:417
#5  sys_shmget+0x13b sys/kern/sysv_shm.c:480
#6  syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
#6  syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623
#7  Xsyscall+0x128
ddb{1}> show malloc
           Type InUse  MemUse  HighUse   Limit  Requests Type Lim
         devbuf 10192   6484K    6937K  78643K     11590        0
            pcb    13      8K       8K  78643K        25        0
         rtable   234      6K       6K  78643K       449        0
             pf    32      9K      10K  78643K        49        0
         ifaddr    45     15K      15K  78643K        59        0
        ifgroup    55      2K       2K  78643K        67        0
       counters    60     35K      35K  78643K        66        0
       ioctlops     0      0K       4K  78643K      1503        0
            iov     0      0K      14K  78643K        18        0
          mount     1      1K       1K  78643K         1        0
            log     0      0K       0K  78643K         4        0
         vnodes  1290     81K      81K  78643K      1417        0
      UFS quota     1     32K      32K  78643K         1        0
      UFS mount     5     36K      36K  78643K         5        0
            shm     2      1K       5K  78643K         5        0
         VM map     2      1K       1K  78643K         2        0
            sem    12      0K       0K  78643K        13        0
        dirhash    12      2K       2K  78643K        12        0
           ACPI  1697    195K     286K  78643K     12548        0
      file desc    17     61K      93K  78643K       383        0
           proc    68     91K     128K  78643K       620        0
        subproc   104      6K       6K  78643K       143        0
    NFS srvsock     1      0K       0K  78643K         1        0
     NFS daemon     1     16K      16K  78643K         1        0
    ip_moptions     0      0K       0K  78643K        12        0
       in_multi    99      7K       7K  78643K       135        0
    ether_multi     1      0K       0K  78643K         1        0
    ISOFS mount     1     32K      32K  78643K         1        0
  MSDOSFS mount     1     16K      16K  78643K         1        0
           ttys    37    175K     175K  78643K        37        0
           exec     0      0K       1K  78643K       433        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     8     62K      64K  78643K        10        0
       UVM amap   357    147K     147K  78643K      6057        0
       UVM aobj     9      2K       2K  78643K        12        0
        memdesc     1      4K       4K  78643K         1        0
    crypto data     1      1K       1K  78643K         1        0
    ip6_options     0      0K       0K  78643K        22        0
            NDP    12      0K       1K  78643K        37        0
           temp    33   5906K    5983K  78643K      6589        0
         kqueue    12     18K      24K  78643K        38        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       55    0       52     1     0     1     1     0     8    0
rtentry    112      144    0       34     4     0     4     4     0     8    0
unpcb      144      324    0      305     4     0     4     4     0     8    3
syncache   304        4    0        4     1     1     0     1     0     8    0
tcpqe       32      503    0      503     4     4     0     3     0     8    0
tcpcb      808       29    0       23     2     0     2     2     0     8    0
arp        120       24    0        6     1     0     1     1     0     8    0
inpcb      368      130    0      120     2     0     2     2     0     8    1
nd6        136       33    0        9     1     0     1     1     0     8    0
kcovpl      48       11    0        3     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
pfstitem    24       26    0        2     1     0     1     1     0     8    0
pfstkey    128       26    0        2     1     0     1     1     0     8    0
pfstate    376       26    0        2     3     0     3     3     0     8    0
pfrule     1344      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      585    0      132    29     0    29    29     0     8    0
art_table   32      586    0      132     4     0     4     4     0     8    0
art_node    16      143    0       43     1     0     1     1     0     8    0
semupl     112        2    0        2     1     0     1     1     0     8    1
semapl     112       11    0        1     1     0     1     1     0     8    0
shmpl      112        9    0        3     1     0     1     1     0     8    0
pool(0xffffffff82d8dbd0:shmpl): page inconsistency: page 0xfffffd80784ca000; 28 on list, 6 missing, 35 items per page
dirhash    1024      17    0        0     3     0     3     3     0     8    0
dino2pl    256     1764    0      313    91     0    91    91     0     8    0
ffsino     272     1764    0      313    97     0    97    97     0     8    0
nchpl      144     2329    0      672    63     0    63    63     0     8    0
uvmvnodes   80     1985    0        0    41     0    41    41     0     8    0
vnodes     216     1985    0        0   111     0   111   111     0     8    0
namei      1024    8583    0     8583     2     1     1     2     0     8    1
percpumem   16       46    0        3     1     0     1     1     0     8    0
vcpupl     2048       8    0        0     1     0     1     1     0     8    0
vmpool     696        8    0        0     1     0     1     1     0     8    0
kstatmem   264       30    0        6     2     0     2     2     0     8    0
scxspl     216     9295    0     9295    10     2     8     8     1     8    8
plimitpl   152       40    0       24     1     0     1     1     0     8    0
sigapl     424      704    0      654     8     1     7     7     0     8    0
futexpl     64     1991    0     1983     1     0     1     1     0     8    0
knotepl    120      116    0        0     4     0     4     4     0     8    0
kqueuepl   216       45    0       36     1     0     1     1     0     8    0
pipepl     320      292    0      264     8     0     8     8     0     8    5
fdescpl    496      685    0      655     5     1     4     5     0     8    0
filepl     152     3205    0     2956    15     0    15    15     0     8    5
lockfpl    104       75    0       73     1     0     1     1     0     8    0
lockfspl    48       35    0       33     1     0     1     1     0     8    0
sessionpl  144       27    0       10     1     0     1     1     0     8    0
pgrppl      48       27    0       10     1     0     1     1     0     8    0
ucredpl    104      116    0      103     1     0     1     1     0     8    0
zombiepl   144      655    0      654     1     0     1     1     0     8    0
processpl  1072     704    0      654     4     0     4     4     0     8    0
procpl     680     1110    0     1035     8     1     7     7     0     8    0
sockpl     488      509    0      477    12     0    12    12     0     8    8
mcl64k     65536      6    0        0     1     0     1     1     0     8    0
mcl16k     16384      6    0        0     1     0     1     1     0     8    0
mcl12k     12288      2    0        0     1     0     1     1     0     8    0
mcl9k      9216       1    0        0     1     0     1     1     0     8    0
mcl8k      8192       5    0        0     1     0     1     1     0     8    0
mcl4k      4096       7    0        0     1     0     1     1     0     8    0
mcl2k2     2112       1    0        0     1     0     1     1     0     8    0
mcl2k      2048     365    0        0    45     0    45    45     0     8    0
mtagpl      96       36    0        0     1     0     1     1     0     8    0
mbufpl     256      378    0        0    24     0    24    24     0     8    0
bufpl      288     5593    0      141   390     0   390   390     0     8    0
anonpl      24   213821    0   201394   103     2   101   101     0   186   17
amapchunkpl 152   19516    0    18618    39     0    39    39     0   158    3
amappl16   200     5552    0     5202    31     3    28    31     0     8    8
amappl15   192       14    0       14     1     1     0     1     0     8    0
amappl14   184      170    0      157     2     1     1     2     0     8    0
amappl13   176       13    0       13     1     1     0     1     0     8    0
amappl12   168     1403    0     1372     3     1     2     2     0     8    0
amappl11   160       64    0       49     1     0     1     1     0     8    0
amappl10   152       43    0       34     1     0     1     1     0     8    0
amappl9    144      169    0      167     1     0     1     1     0     8    0
amappl8    136      206    0      157     2     0     2     2     0     8    0
amappl7    128      195    0      168     2     0     2     2     0     8    0
amappl6    120      311    0      302     1     0     1     1     0     8    0
amappl5    112      138    0      127     1     0     1     1     0     8    0
amappl4    104      470    0      440     2     1     1     2     0     8    0
amappl3     96     3918    0     3827     3     0     3     3     0     8    0
amappl2     88     1133    0     1055     3     1     2     3     0     8    0
amappl1     80    11077    0    10512    23    10    13    23     0     8    0
amappl      88     5491    0     5249     6     0     6     6     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       11    0        3     1     0     1     1     0     8    0
uaddrrnd    24      693    0      655     1     0     1     1     0     8    0
uaddrbest   32        2    0        0     1     0     1     1     0     8    0
uaddr       24      693    0      655     1     0     1     1     0     8    0
vmmpekpl   168    12009    0    11951     3     0     3     3     0     8    0
vmmpepl    168    65151    0    62835   117     6   111   117     0   357    8
vmsppl     464      692    0      655     5     0     5     5     0     8    0
rwobjpl     56    24716    0    21278    52     3    49    49     0     8    0
pdppl      4096    1394    0     1318   127    49    78    84     0     8    2
pvpl        32   476187    0   458068   358    30   328   358     0   265  166
pmappl     248      692    0      655     3     0     3     3     0     8    0
extentpl    40       56    0       38     1     0     1     1     0     8    0
phpool     112      829    0       53    23     0    23    23     0     8    0
ddb{1}> machine ddbcpu 0
Stopped at      x86_ipi_db+0x1e:        addq    $0x8,%rsp
x86_ipi_db(ffffffff82bfdff0) at x86_ipi_db+0x1e 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+0x27
__mp_lock(ffffffff82d80cf8) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline]
__mp_lock(ffffffff82d80cf8) at __mp_lock+0x122 sys/kern/kern_lock.c:147
softintr_dispatch(0) at softintr_dispatch+0x52 sys/arch/amd64/amd64/softintr.c:88
Xsoftclock() at Xsoftclock+0x27
end of kernel
end trace frame: 0x7606d91ecb80, count: 9
ddb{0}> trace
x86_ipi_db(ffffffff82bfdff0) at x86_ipi_db+0x1e 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+0x27
__mp_lock(ffffffff82d80cf8) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline]
__mp_lock(ffffffff82d80cf8) at __mp_lock+0x122 sys/kern/kern_lock.c:147
softintr_dispatch(0) at softintr_dispatch+0x52 sys/arch/amd64/amd64/softintr.c:88
Xsoftclock() at Xsoftclock+0x27
end of kernel
end trace frame: 0x7606d91ecb80, count: -6
ddb{0}> machine ddbcpu 1
Stopped at      db_enter+0x1c:  addq    $0x8,%rsp
db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff82813cd5) at panic+0x17b sys/kern/subr_prf.c:198
pool_do_get(ffffffff82d8dbd0,1,ffff80002e429378) at pool_do_get+0x484 sys/kern/subr_pool.c:739
pool_get(ffffffff82d8dbd0,1) at pool_get+0xed sys/kern/subr_pool.c:582
shmget_allocate_segment(ffff8000211da818,ffff80002e429500,1a9,ffff80002e429550) at shmget_allocate_segment+0x15b sys/kern/sysv_shm.c:417
sys_shmget(ffff8000211da818,ffff80002e429500,ffff80002e429550) at sys_shmget+0x13b sys/kern/sysv_shm.c:480
syscall(ffff80002e4295d0) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
syscall(ffff80002e4295d0) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x856c12368a0, count: 7
ddb{1}> trace
db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff82813cd5) at panic+0x17b sys/kern/subr_prf.c:198
pool_do_get(ffffffff82d8dbd0,1,ffff80002e429378) at pool_do_get+0x484 sys/kern/subr_pool.c:739
pool_get(ffffffff82d8dbd0,1) at pool_get+0xed sys/kern/subr_pool.c:582
shmget_allocate_segment(ffff8000211da818,ffff80002e429500,1a9,ffff80002e429550) at shmget_allocate_segment+0x15b sys/kern/sysv_shm.c:417
sys_shmget(ffff8000211da818,ffff80002e429500,ffff80002e429550) at sys_shmget+0x13b sys/kern/sysv_shm.c:480
syscall(ffff80002e4295d0) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
syscall(ffff80002e4295d0) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x856c12368a0, count: -8

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2023/11/13 22:35 openbsd 1066617378e4 cb976f63 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore pool: free list modified: shmpl
* Struck through repros no longer work on HEAD.