syzbot


panic: pool_cache_item_magic_check: mbufpl cppua nfirec:e lkeisrnet lm odidiagfnioedst:i ict easms aerdtdiro n0x f"!f_f

Status: closed as dup on 2020/07/19 07:10
Reported-by: syzbot+1e668871807b6cbc9b14@syzkaller.appspotmail.com
First crash: 1377d, last: 1377d
Duplicate of
Title Repro Cause bisect Fix bisect Count Last Reported
pool: cpu free list modified: mbufpl syz 15863 1360d 1647d

Sample crash report:
panic: pool_cache_item_magic_check: mbufpl cppua nfirec:e  lkeisrnet lm odidiagfnioedst:i ict easms aerdtdiro n0x f"!f_ffkefdrn8e0l6d_l77o8ckb_0h0+el16d 0x0!=0x7a721b03e381612e
Stopped at      db_enter+0x18:  addq    $0x8,%rsp
    TID    PID    UID     PRFLAGS     PFLAGS  CPU  COMMAND
  77356  52526      0           0  0x4000000    0  syz-executor.1
*173106  70856      0           0  0x4000000    1  syz-executor.0
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic(ffffffff824057a5) at panic+0x15c sys/kern/subr_prf.c:207
pool_cache_get(ffffffff829228d8) at pool_cache_get+0x323 pool_cache_item_magic_check sys/kern/subr_pool.c:1781 [inline]
pool_cache_get(ffffffff829228d8) at pool_cache_get+0x323 sys/kern/subr_pool.c:1884
pool_get(ffffffff829228d8,1) at pool_get+0x91 sys/kern/subr_pool.c:572
m_get(1,1) at m_get+0x4c sys/kern/uipc_mbuf.c:250
m_getuio(ffff8000230f3548,1,1000,ffff8000230f3610) at m_getuio+0xbe sys/kern/uipc_socket.c:592
sosend(fffffd8066789b08,0,ffff8000230f3610,0,0,2) at sosend+0x54e sys/kern/uipc_socket.c:542
sendit(ffff800020e374f8,8,ffff8000230f36f0,2,ffff8000230f37d0) at sendit+0x52b sys/kern/uipc_syscalls.c:657
sys_sendto(ffff800020e374f8,ffff8000230f3788,ffff8000230f37d0) at sys_sendto+0x80 sys/kern/uipc_syscalls.c:522
syscall(ffff8000230f3850) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline]
syscall(ffff8000230f3850) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x35aa18d92f0, count: 4
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
pool_cache_item_magic_check: mbufpl cpu free list modified: item addr 0xfffffd806d778b00+16 0x0!=0x7a721b03e381612e
ddb{1}> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic(ffffffff824057a5) at panic+0x15c sys/kern/subr_prf.c:207
pool_cache_get(ffffffff829228d8) at pool_cache_get+0x323 pool_cache_item_magic_check sys/kern/subr_pool.c:1781 [inline]
pool_cache_get(ffffffff829228d8) at pool_cache_get+0x323 sys/kern/subr_pool.c:1884
pool_get(ffffffff829228d8,1) at pool_get+0x91 sys/kern/subr_pool.c:572
m_get(1,1) at m_get+0x4c sys/kern/uipc_mbuf.c:250
m_getuio(ffff8000230f3548,1,1000,ffff8000230f3610) at m_getuio+0xbe sys/kern/uipc_socket.c:592
sosend(fffffd8066789b08,0,ffff8000230f3610,0,0,2) at sosend+0x54e sys/kern/uipc_socket.c:542
sendit(ffff800020e374f8,8,ffff8000230f36f0,2,ffff8000230f37d0) at sendit+0x52b sys/kern/uipc_syscalls.c:657
sys_sendto(ffff800020e374f8,ffff8000230f3788,ffff8000230f37d0) at sys_sendto+0x80 sys/kern/uipc_syscalls.c:522
syscall(ffff8000230f3850) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline]
syscall(ffff8000230f3850) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x35aa18d92f0, count: -11
ddb{1}> show registers
rdi                                0
rsi                              0x1
rbp               0xffff8000230f3270
rbx               0xffff8000230f3320
rdx                             0x8b
rcx                              0x2
rax                              0x1
r8                0xffffffff813f032f    kprintf+0x16f
r9                               0x1
r10                              0x2
r11               0xeeefdf095bf047a7
r12                     0x3000000008
r13               0xffff8000230f3280
r14                            0x100
r15                              0x1
rip               0xffffffff812c6398    db_enter+0x18
cs                               0x8
rflags                         0x246
rsp               0xffff8000230f3260
ss                              0x10
db_enter+0x18:  addq    $0x8,%rsp
ddb{1}> show proc
PROC (syz-executor.0) pid=173106 stat=onproc
    flags process=0 proc=4000000<THREAD>
    pri=32, usrpri=86, nice=20
    forw=0xffffffffffffffff, list=0xffff800020e37288,0xffff800020e383a8
    process=0xffff800020eb5398 user=0xffff8000230ee000, vmspace=0xfffffd807efff5c0
    estcpu=36, cpticks=3, pctcpu=0.0
    user=0, sys=3, intr=0
ddb{1}> ps
   PID     TID   PPID    UID  S       FLAGS  WAIT          COMMAND
 52526  231469  92551      0  2           0                syz-executor.1
 52526   77356  92551      0  7   0x4000000                syz-executor.1
 70856  316486  34275      0  2           0                syz-executor.0
*70856  173106  34275      0  7   0x4000000                syz-executor.0
 82920  441096      0      0  3     0x14200  bored         sosplice
 28500  276687      0      0  3     0x14280  nfsidl        nfsio
 27892   87059      0      0  3     0x14280  nfsidl        nfsio
 57647  418050      0      0  3     0x14280  nfsidl        nfsio
 29258  157838      0      0  3     0x14280  nfsidl        nfsio
 30524  213940      0      0  3     0x14280  nfsidl        nfsio
 69224  305102      0      0  3     0x14280  nfsidl        nfsio
 43724  130582      0      0  3     0x14280  nfsidl        nfsio
  3845  254482      0      0  3     0x14280  nfsidl        nfsio
 20047  379640      0      0  3     0x14280  nfsidl        nfsio
 21779  231296      0      0  3     0x14280  nfsidl        nfsio
 25336  234527      0      0  3     0x14280  nfsidl        nfsio
 37602   13457      0      0  3     0x14280  nfsidl        nfsio
 78018  435095      0      0  3     0x14280  nfsidl        nfsio
 10042  189849      0      0  3     0x14280  nfsidl        nfsio
 31077   46914      0      0  3     0x14280  nfsidl        nfsio
 64030  273466      0      0  3     0x14280  nfsidl        nfsio
 35936   54089      0      0  3     0x14280  nfsidl        nfsio
  3763  345391      0      0  3     0x14280  nfsidl        nfsio
 18252   89133      0      0  3     0x14280  nfsidl        nfsio
 25872   72299      0      0  3     0x14280  nfsidl        nfsio
 92551  304138  22461      0  2       0x482                syz-executor.1
 34275  322203  22461      0  2       0x482                syz-executor.0
 22461   79068  77756      0  2       0x482                syz-fuzzer
 22461  254618  77756      0  3   0x4000082  nanosleep     syz-fuzzer
 22461    9562  77756      0  3   0x4000082  thrsleep      syz-fuzzer
 22461   83078  77756      0  3   0x4000082  thrsleep      syz-fuzzer
 22461  370904  77756      0  3   0x4000082  thrsleep      syz-fuzzer
 22461  369337  77756      0  3   0x4000082  thrsleep      syz-fuzzer
 22461  338075  77756      0  3   0x4000082  thrsleep      syz-fuzzer
 22461  493577  77756      0  3   0x4000082  thrsleep      syz-fuzzer
 22461  134091  77756      0  3   0x4000082  kqread        syz-fuzzer
 22461  310383  77756      0  3   0x4000082  thrsleep      syz-fuzzer
 77756  314508  62037      0  3    0x10008a  pause         ksh
 62037   19417  96281      0  3        0x92  select        sshd
 96454  125652      1      0  3    0x100083  ttyin         getty
 96281  436814      1      0  3        0x80  select        sshd
 94405   32255  97463     74  3    0x100092  bpf           pflogd
 97463  203969      1      0  3        0x80  netio         pflogd
  6641  288247  80301     73  3    0x100090  kqread        syslogd
 80301   93743      1      0  3    0x100082  netio         syslogd
 20517   27519      1     77  3    0x100090  poll          dhclient
 50006  252942      1      0  3        0x80  poll          dhclient
 61610  290182      0      0  3     0x14200  bored         smr
 47258  210333      0      0  2     0x14200                zerothread
 40647  329054      0      0  3     0x14200  aiodoned      aiodoned
 30483   42936      0      0  3     0x14200  syncer        update
 69780  311211      0      0  3     0x14200  cleaner       cleaner
 68881   50249      0      0  3     0x14200  reaper        reaper
 81732   73993      0      0  3     0x14200  pgdaemon      pagedaemon
 27177  251457      0      0  3     0x14200  bored         crynlk
 14947  151976      0      0  3     0x14200  bored         crypto
 80609  113116      0      0  3  0x40014200  acpi0         acpi0
 95925  506052      0      0  3  0x40014200                idle1
 61666  475051      0      0  3     0x14200  bored         softnet
 70534  323478      0      0  3     0x14200  bored         systqmp
 81268  237258      0      0  3     0x14200  bored         systq
 44582  523786      0      0  3  0x40014200  bored         softclock
 42181  494268      0      0  3  0x40014200                idle0
     1  439489      0      0  3        0x82  wait          init
     0       0     -1      0  3     0x10200  scheduler     swapper
ddb{1}> show all locks
ddb{1}> show malloc
           Type InUse  MemUse  HighUse   Limit  Requests Type Lim
         devbuf  9500   6534K    6534K  78643K     10665        0
            pcb    15      8K       8K  78643K        25        0
         rtable   109      3K       6K  78643K       243        0
         ifaddr    55     12K      12K  78643K        69        0
       counters    43     33K      33K  78643K        43        0
       ioctlops     0      0K       4K  78643K      1478        0
            iov     0      0K      24K  78643K        13        0
          mount     1      1K       1K  78643K         1        0
         vnodes  1219     77K      77K  78643K      1239        0
      UFS quota     1     32K      32K  78643K         1        0
      UFS mount     5     36K      36K  78643K         5        0
            shm     2      1K       5K  78643K         4        0
         VM map     2      1K       1K  78643K         2        0
            sem    12      0K       0K  78643K        39        0
        dirhash    12      2K       2K  78643K        12        0
           ACPI  1824    197K     290K  78643K     13058        0
      file desc     6     17K      25K  78643K       123        0
           proc    61     63K      95K  78643K       449        0
        subproc    32      2K       2K  78643K        34        0
    NFS srvsock     1      0K       0K  78643K         1        0
     NFS daemon     1     16K      16K  78643K         1        0
       in_multi    40      2K       2K  78643K        48        0
    ether_multi     2      0K       0K  78643K         2        0
            mrt     3      0K       0K  78643K         3        0
    ISOFS mount     1     32K      32K  78643K         1        0
  MSDOSFS mount     1     16K      16K  78643K         1        0
           ttys    43    201K     201K  78643K        43        0
           exec     0      0K       1K  78643K       213        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   130     23K      23K  78643K      1306        0
       UVM aobj     9      4K       4K  78643K         9        0
        memdesc     1      4K       4K  78643K         1        0
    crypto data     1      1K       1K  78643K         1        0
    ip6_options     0      0K       0K  78643K         2        0
            NDP     8      0K       0K  78643K        14        0
           temp    79   3853K    3917K  78643K      2247        0
         kqueue     3      4K       4K  78643K         3        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
arp         64        6    0        0     1     0     1     1     0     8    0
plcache    128       20    0        0     1     0     1     1     0     8    0
rtpcb       80       23    0       21     1     0     1     1     0     8    0
rtentry    112       48    0        3     2     0     2     2     0     8    0
unpcb      120      216    0      202     2     0     2     2     0     8    1
syncache   264        4    0        4     1     1     0     1     0     8    0
tcpqe       32      677    0      677     1     1     0     1     0     8    0
tcpcb      544       22    0       18     1     0     1     1     0     8    0
inpcb      296      165    0      156     2     0     2     2     0     8    1
rttmr       72        1    0        0     1     0     1     1     0     8    0
nd6         48        8    0        2     1     0     1     1     0     8    0
pffrag     232        1    0        0     1     0     1     1     0   482    0
pffrnode    88        1    0        0     1     0     1     1     0     8    0
pffrent     40        2    0        1     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
pfrktable  1344      14    0       14     1     0     1     1     0     8    1
pfstitem    24       17    0        3     1     0     1     1     0     8    0
pfstkey    112       17    0        3     1     0     1     1     0     8    0
pfstate    328       17    0        3     2     0     2     2     0     8    0
pfrule     1360      23    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      188    0        0    12     0    12    12     0     8    0
art_table   32      189    0        0     2     0     2     2     0     8    0
art_node    16       47    0        6     1     0     1     1     0     8    0
sysvmsgpl   40        6    0        3     1     0     1     1     0     8    0
semupl     112        5    0        5     1     1     0     1     0     8    0
semapl     112       31    0       21     1     0     1     1     0     8    0
shmpl      112        6    0        0     1     0     1     1     0     8    0
dirhash    1024      17    0        0     3     0     3     3     0     8    0
dino2pl    256     1551    0      142    89     0    89    89     0     8    0
ffsino     272     1551    0      142    96     1    95    95     0     8    0
nchpl      144     1913    0      302    60     0    60    60     0     8    0
uvmvnodes   72     1607    0        0    30     0    30    30     0     8    0
vnodes     208     1607    0        0    85     0    85    85     0     8    0
namei      1024    5070    0     5070     2     1     1     1     0     8    1
percpumem   16       32    0        0     1     0     1     1     0     8    0
pfiaddrpl  120        4    0        4     1     0     1     1     0     8    1
scxspl     192     5658    0     5658     8     7     1     7     0     8    1
plimitpl   152       15    0        7     1     0     1     1     0     8    0
sigapl     424      359    0      306     6     0     6     6     0     8    0
futexpl     56     1209    0     1209     1     0     1     1     0     8    1
knotepl    112       61    0       42     1     0     1     1     0     8    0
kqueuepl   144        6    0        4     1     0     1     1     0     8    0
pipepl     304       92    0       82     2     1     1     2     0     8    0
fdescpl    496      323    0      306     3     0     3     3     0     8    0
filepl     152     1728    0     1622     6     1     5     5     0     8    0
lockfpl    104       10    0        9     1     0     1     1     0     8    0
lockfspl    48        5    0        4     1     0     1     1     0     8    0
sessionpl  112       18    0        7     1     0     1     1     0     8    0
pgrppl      48       18    0        7     1     0     1     1     0     8    0
ucredpl     96      109    0      100     1     0     1     1     0     8    0
zombiepl   144      306    0      306     2     1     1     1     0     8    1
processpl  992      359    0      306     8     1     7     7     0     8    0
procpl     624      558    0      494     6     0     6     6     0     8    1
sosppl     128        1    0        1     1     0     1     1     0     8    1
sockpl     400      404    0      379     6     1     5     5     0     8    2
mcl64k     65536      2    0        0     1     0     1     1     0     8    0
mcl12k     12288      5    0        0     1     0     1     1     0     8    0
mcl9k      9216       1    0        0     1     0     1     1     0     8    0
mcl8k      8192       3    0        0     1     0     1     1     0     8    0
mcl4k      4096       3    0        0     1     0     1     1     0     8    0
mcl2k      2048     261    0        0    32     0    32    32     0     8    0
mtagpl      96        5    0        0     1     0     1     1     0     8    0
mbufpl     256      269    0        0    16     0    16    16     0     8    0
bufpl      280     3525    0      132   243     0   243   243     0     8    0
anonpl      16    45916    0    29249    69     1    68    68     0   124    0
amapchunkpl 152    1566    0     1400     9     2     7     9     0   158    0
amappl16   192     1366    0      485    45     0    45    45     0     8    0
amappl15   184        1    0        0     1     0     1     1     0     8    0
amappl14   176       33    0       27     1     0     1     1     0     8    0
amappl13   168       79    0       73     1     0     1     1     0     8    0
amappl12   160       10    0        7     1     0     1     1     0     8    0
amappl11   152       57    0       42     1     0     1     1     0     8    0
amappl10   144       30    0       22     1     0     1     1     0     8    0
amappl9    136      430    0      426     1     0     1     1     0     8    0
amappl8    128      395    0      358     2     0     2     2     0     8    0
amappl7    120      119    0      107     1     0     1     1     0     8    0
amappl6    112       22    0       19     2     1     1     1     0     8    0
amappl5    104      218    0      202     1     0     1     1     0     8    0
amappl4     96      535    0      505     1     0     1     1     0     8    0
amappl3     88      113    0      104     1     0     1     1     0     8    0
amappl2     80     1615    0     1539     2     0     2     2     0     8    0
amappl1     72    18218    0    17761    23    13    10    18     0     8    0
amappl      80      787    0      740     2     0     2     2     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       18    0       17     1     0     1     1     0     8    0
aobjpl      64        8    0        0     1     0     1     1     0     8    0
uaddrrnd    24      323    0      306     1     0     1     1     0     8    0
uaddrbest   32        2    0        0     1     0     1     1     0     8    0
uaddr       24      323    0      306     1     0     1     1     0     8    0
vmmpekpl   168     6561    0     6522     2     0     2     2     0     8    0
vmmpepl    168    47497    0    45331   125    15   110   116     0   357   15
vmsppl     368      322    0      306     2     0     2     2     0     8    0
pdppl      4096     653    0      612     7     1     6     6     0     8    0
pvpl        32   160390    0   140383   167     0   167   167     0   265    4
pmappl     232      322    0      306     2     1     1     2     0     8    0
extentpl    40       53    0       36     1     0     1     1     0     8    0
phpool     112      280    0        7     8     0     8     8     0     8    0
ddb{1}> machine ddbcpu 0
Stopped at      x86_ipi_db+0x1a:        addq    $0x8,%rsp
x86_ipi_db(ffffffff8274cff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:352
x86_ipi_handler() at x86_ipi_handler+0xc6 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23
__sanitizer_cov_trace_cmp4(8c95e,8c95d) at __sanitizer_cov_trace_cmp4+0x64 sys/dev/kcov.c:137
__mp_lock(ffffffff82922230) at __mp_lock+0x139 __mp_lock_spin sys/kern/kern_lock.c:116 [inline]
__mp_lock(ffffffff82922230) at __mp_lock+0x139 sys/kern/kern_lock.c:147
softintr_dispatch(0) at softintr_dispatch+0x4e sys/arch/amd64/amd64/softintr.c:89
Xsoftclock() at Xsoftclock+0x1f
cnputc(64) at cnputc+0x4c sys/dev/cons.c:239
kputchar(64,5,0) at kputchar+0x219 sys/kern/subr_prf.c:343
kprintf() at kprintf+0x1b7c sys/kern/subr_prf.c:1052
panic(ffffffff824006f2) at panic+0xf3 vprintf sys/kern/subr_prf.c:528 [inline]
panic(ffffffff824006f2) at panic+0xf3 sys/kern/subr_prf.c:197
__assert(ffffffff8246e473,ffffffff8245447f,29e,ffffffff8243167f) at __assert+0x2b sys/kern/subr_prf.c:154
proc_trampoline_mp() at proc_trampoline_mp+0x123
end trace frame: 0x0, count: 2
ddb{0}> trace
x86_ipi_db(ffffffff8274cff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:352
x86_ipi_handler() at x86_ipi_handler+0xc6 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23
__sanitizer_cov_trace_cmp4(8c95e,8c95d) at __sanitizer_cov_trace_cmp4+0x64 sys/dev/kcov.c:137
__mp_lock(ffffffff82922230) at __mp_lock+0x139 __mp_lock_spin sys/kern/kern_lock.c:116 [inline]
__mp_lock(ffffffff82922230) at __mp_lock+0x139 sys/kern/kern_lock.c:147
softintr_dispatch(0) at softintr_dispatch+0x4e sys/arch/amd64/amd64/softintr.c:89
Xsoftclock() at Xsoftclock+0x1f
cnputc(64) at cnputc+0x4c sys/dev/cons.c:239
kputchar(64,5,0) at kputchar+0x219 sys/kern/subr_prf.c:343
kprintf() at kprintf+0x1b7c sys/kern/subr_prf.c:1052
panic(ffffffff824006f2) at panic+0xf3 vprintf sys/kern/subr_prf.c:528 [inline]
panic(ffffffff824006f2) at panic+0xf3 sys/kern/subr_prf.c:197
__assert(ffffffff8246e473,ffffffff8245447f,29e,ffffffff8243167f) at __assert+0x2b sys/kern/subr_prf.c:154
proc_trampoline_mp() at proc_trampoline_mp+0x123
end trace frame: 0x0, count: -13
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:398
panic(ffffffff824057a5) at panic+0x15c sys/kern/subr_prf.c:207
pool_cache_get(ffffffff829228d8) at pool_cache_get+0x323 pool_cache_item_magic_check sys/kern/subr_pool.c:1781 [inline]
pool_cache_get(ffffffff829228d8) at pool_cache_get+0x323 sys/kern/subr_pool.c:1884
pool_get(ffffffff829228d8,1) at pool_get+0x91 sys/kern/subr_pool.c:572
m_get(1,1) at m_get+0x4c sys/kern/uipc_mbuf.c:250
m_getuio(ffff8000230f3548,1,1000,ffff8000230f3610) at m_getuio+0xbe sys/kern/uipc_socket.c:592
sosend(fffffd8066789b08,0,ffff8000230f3610,0,0,2) at sosend+0x54e sys/kern/uipc_socket.c:542
sendit(ffff800020e374f8,8,ffff8000230f36f0,2,ffff8000230f37d0) at sendit+0x52b sys/kern/uipc_syscalls.c:657
sys_sendto(ffff800020e374f8,ffff8000230f3788,ffff8000230f37d0) at sys_sendto+0x80 sys/kern/uipc_syscalls.c:522
syscall(ffff8000230f3850) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline]
syscall(ffff8000230f3850) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x35aa18d92f0, count: 4
ddb{1}> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic(ffffffff824057a5) at panic+0x15c sys/kern/subr_prf.c:207
pool_cache_get(ffffffff829228d8) at pool_cache_get+0x323 pool_cache_item_magic_check sys/kern/subr_pool.c:1781 [inline]
pool_cache_get(ffffffff829228d8) at pool_cache_get+0x323 sys/kern/subr_pool.c:1884
pool_get(ffffffff829228d8,1) at pool_get+0x91 sys/kern/subr_pool.c:572
m_get(1,1) at m_get+0x4c sys/kern/uipc_mbuf.c:250
m_getuio(ffff8000230f3548,1,1000,ffff8000230f3610) at m_getuio+0xbe sys/kern/uipc_socket.c:592
sosend(fffffd8066789b08,0,ffff8000230f3610,0,0,2) at sosend+0x54e sys/kern/uipc_socket.c:542
sendit(ffff800020e374f8,8,ffff8000230f36f0,2,ffff8000230f37d0) at sendit+0x52b sys/kern/uipc_syscalls.c:657
sys_sendto(ffff800020e374f8,ffff8000230f3788,ffff8000230f37d0) at sys_sendto+0x80 sys/kern/uipc_syscalls.c:522
syscall(ffff8000230f3850) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline]
syscall(ffff8000230f3850) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x35aa18d92f0, count: -11

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2020/07/19 03:23 openbsd d711776be3d8 9c812472 .config console log report ci-openbsd-multicore
* Struck through repros no longer work on HEAD.