syzbot


witness: lock_object uninitialized: ADDR (2)

Status: auto-obsoleted due to no activity on 2023/01/17 13:32
Reported-by: syzbot+bac18ca5a6a220881902@syzkaller.appspotmail.com
First crash: 110d, last: 110d
similar bugs (1):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
openbsd witness: lock_object uninitialized: ADDR 71 267d 406d 0/3 auto-closed as invalid on 2022/08/14 06:12

Sample crash report:
witness: lock_object uninitialized: 0xffff800001012028
Starting stack trace...
witness_checkorder(ffff800001012028,9,0) at witness_checkorder+0x133 witness_debugger sys/kern/subr_witness.c:2502 [inline]
witness_checkorder(ffff800001012028,9,0) at witness_checkorder+0x133 sys/kern/subr_witness.c:772
rw_enter_write(ffff800001012018) at rw_enter_write+0x5b sys/kern/kern_rwlock.c:128
unveil_delete_names(ffff800001012000) at unveil_delete_names+0x30 unvname_rbt_RBT_MIN sys/kern/kern_unveil.c:92 [inline]
unveil_delete_names(ffff800001012000) at unveil_delete_names+0x30 sys/kern/kern_unveil.c:102
unveil_destroy(ffff80002129b618) at unveil_destroy+0xad sys/kern/kern_unveil.c:183
exit1(ffff800024beba48,0,0,1) at exit1+0x3d5 sys/kern/kern_exit.c:219
sys_exit(ffff800024beba48,ffff80002e58d350,ffff80002e58d3a0) at sys_exit+0x16 sys/kern/kern_exit.c:89
syscall(ffff80002e58d420) at syscall+0x435 mi_syscall sys/sys/syscall_mi.h:101 [inline]
syscall(ffff80002e58d420) at syscall+0x435 sys/arch/amd64/amd64/trap.c:585
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7fffffb7c0, count: 249
End of stack trace.
Stopped at      db_enter+0x18:  addq    $0x8,%rsp
ddb{0}> set $lines = 0
ddb{0}> set $maxwidth = 0
ddb{0}> show panic
the kernel did not panic
ddb{0}> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437
witness_checkorder(ffff800001012028,9,0) at witness_checkorder+0x138 witness_debugger sys/kern/subr_witness.c:2502 [inline]
witness_checkorder(ffff800001012028,9,0) at witness_checkorder+0x138 sys/kern/subr_witness.c:772
rw_enter_write(ffff800001012018) at rw_enter_write+0x5b sys/kern/kern_rwlock.c:128
unveil_delete_names(ffff800001012000) at unveil_delete_names+0x30 unvname_rbt_RBT_MIN sys/kern/kern_unveil.c:92 [inline]
unveil_delete_names(ffff800001012000) at unveil_delete_names+0x30 sys/kern/kern_unveil.c:102
unveil_destroy(ffff80002129b618) at unveil_destroy+0xad sys/kern/kern_unveil.c:183
exit1(ffff800024beba48,0,0,1) at exit1+0x3d5 sys/kern/kern_exit.c:219
sys_exit(ffff800024beba48,ffff80002e58d350,ffff80002e58d3a0) at sys_exit+0x16 sys/kern/kern_exit.c:89
syscall(ffff80002e58d420) at syscall+0x435 mi_syscall sys/sys/syscall_mi.h:101 [inline]
syscall(ffff80002e58d420) at syscall+0x435 sys/arch/amd64/amd64/trap.c:585
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7fffffb7c0, count: -9
ddb{0}> show registers
rdi                                0
rsi                                0
rbp               0xffff80002e58d0f0
rbx                              0x3
rdx                                0
rcx                                0
rax               0xffff800024beba48
r8                0xffff80002e58d090
r9                0x8080808080808080
r10               0x3eabca95a7abdcc5
r11               0xb568ebbf930b9c97
r12               0xffff800001012001
r13               0xffff800001012028
r14                                0
r15                                0
rip               0xffffffff81feffe8    db_enter+0x18
cs                               0x8
rflags                         0x246
rsp               0xffff80002e58d0e0
ss                              0x10
db_enter+0x18:  addq    $0x8,%rsp
ddb{0}> show proc
PROC (syz-executor.0) pid=126983 stat=onproc
    flags process=1008<EXITING,SINGLEEXIT> proc=2000<WEXIT>
    pri=32, usrpri=86, nice=20
    forw=0xffffffffffffffff, list=0xffff80002e53a550,0xffff800024beb278
    process=0xffff80002129b618 user=0xffff80002e588000, vmspace=0xfffffd805ad76478
    estcpu=36, cpticks=19, pctcpu=0.0
    user=0, sys=8, intr=0
ddb{0}> ps
   PID     TID   PPID    UID  S       FLAGS  WAIT          COMMAND
 25917  188903  43369      0  2           0                syz-executor.2
 34630  255192  68894      0  2           0                syz-executor.7
 56839  405855  17007      0  2       0x480                syz-executor.6
 56839  421912  17007      0  3   0x4000080  fsleep        syz-executor.6
 56839  254256  17007      0  2   0x4000000                syz-executor.6
 56839   27776  17007      0  3   0x4000080  fsleep        syz-executor.6
 68894  323000  17928      0  2       0x482                syz-executor.7
 71168  181369  17928      0  2       0x482                syz-executor.4
 68496  236978  17928      0  2       0x482                syz-executor.0
 43369  487876  17928      0  2       0x482                syz-executor.2
 17007  343196  17928      0  2       0x482                syz-executor.6
 62368  200780  17928      0  3        0x82  piperd        syz-executor.1
 54321  314285  17928      0  2         0x2                syz-executor.5
 23589  461413  17928      0  3        0x82  piperd        syz-executor.3
 37367   41655      0      0  3     0x14280  nfsidl        nfsio
 15584  140154      0      0  3     0x14280  nfsidl        nfsio
 55896   86599      0      0  3     0x14280  nfsidl        nfsio
 56029  340999      0      0  3     0x14280  nfsidl        nfsio
 40962  323612      0      0  3     0x14280  nfsidl        nfsio
 78132  295002      0      0  3     0x14280  nfsidl        nfsio
 21180  507270      0      0  3     0x14280  nfsidl        nfsio
 14013  140619      0      0  3     0x14280  nfsidl        nfsio
 19368  318590      0      0  3     0x14280  nfsidl        nfsio
 73350  321569      0      0  3     0x14280  nfsidl        nfsio
 43317  454411      0      0  3     0x14280  nfsidl        nfsio
 94129  128229      0      0  3     0x14280  nfsidl        nfsio
 79642  167690      0      0  3     0x14280  nfsidl        nfsio
 83908   15582      0      0  3     0x14280  nfsidl        nfsio
 94119    6694      0      0  3     0x14280  nfsidl        nfsio
 59010  299730      0      0  3     0x14280  nfsidl        nfsio
 55045  387244      0      0  3     0x14280  nfsidl        nfsio
 73865  129133      0      0  3     0x14280  nfsidl        nfsio
 20533  119387      0      0  3     0x14280  nfsidl        nfsio
 61099  212335      0      0  3     0x14280  nfsidl        nfsio
 60303  131846      1      0  2    0x100083                getty
 95667  494285      0      0  3     0x14200  bored         sosplice
 17928  317784  60605      0  3        0x82  wait          syz-fuzzer
 17928  379809  60605      0  3   0x4000082  thrsleep      syz-fuzzer
 17928  269681  60605      0  3   0x4000082  thrsleep      syz-fuzzer
 17928  214170  60605      0  3   0x4000082  wait          syz-fuzzer
 17928  329184  60605      0  3   0x4000082  thrsleep      syz-fuzzer
 17928  212365  60605      0  3   0x4000082  wait          syz-fuzzer
 17928  393387  60605      0  3   0x4000082  wait          syz-fuzzer
 17928  327339  60605      0  3   0x4000082  wait          syz-fuzzer
 17928    2432  60605      0  3   0x4000082  thrsleep      syz-fuzzer
 17928  227206  60605      0  3   0x4000082  kqread        syz-fuzzer
 17928  280114  60605      0  3   0x4000082  wait          syz-fuzzer
 17928  204161  60605      0  3   0x4000082  thrsleep      syz-fuzzer
 17928   27495  60605      0  3   0x4000082  wait          syz-fuzzer
 17928  431066  60605      0  3   0x4000082  thrsleep      syz-fuzzer
 17928  211200  60605      0  3   0x4000082  thrsleep      syz-fuzzer
 17928  135962  60605      0  3   0x4000082  wait          syz-fuzzer
 60605   87170  63473      0  3    0x10008a  sigsusp       ksh
 63473  355480  66092      0  3        0x9a  kqread        sshd
 66092  132270      1      0  3        0x88  kqread        sshd
  3896   72489  38762     74  3   0x1100092  bpf           pflogd
 38762  329351      1      0  3        0x80  netio         pflogd
 43176  100252  24585     73  2   0x1100090                syslogd
 24585  320708      1      0  3    0x100082  netio         syslogd
 72530  312034      1      0  3    0x100080  kqread        resolvd
 95225  179017  83813     77  3    0x100092  kqread        dhcpleased
 97340  487555  83813     77  3    0x100092  kqread        dhcpleased
 83813  243711      1      0  3        0x80  kqread        dhcpleased
 93469  119443      0      0  3     0x14200  bored         smr
 96573  489538      0      0  2     0x14200                zerothread
 68299   42065      0      0  3     0x14200  aiodoned      aiodoned
 57898  384934      0      0  3     0x14200  syncer        update
 27822  471518      0      0  3     0x14200  cleaner       cleaner
 56194  471103      0      0  2     0x14200                reaper
 48405  368049      0      0  3     0x14200  pgdaemon      pagedaemon
 51859  409580      0      0  3     0x14200  bored         viomb
 18273   74328      0      0  3  0x40014200  acpi0         acpi0
  4966  191677      0      0  7  0x40014200                idle1
 97740   65310      0      0  3     0x14200  bored         softnet
  6879  100567      0      0  3     0x14200  bored         softnet
 20555  144478      0      0  3     0x14200  bored         softnet
  9375   92579      0      0  3     0x14200  bored         softnet
 20139  208837      0      0  3     0x14200  bored         systqmp
 72867  339879      0      0  3     0x14200  bored         systq
 23547  392115      0      0  2  0x40014200                softclock
 79577   52276      0      0  3  0x40014200                idle0
     1  138743      0      0  3        0x82  wait          init
     0       0     -1      0  3     0x10200  scheduler     swapper
ddb{0}> show all locks
Process 25917 (syz-executor.2) thread 0xffff800024beb7a8 (188903)
exclusive rwlock vmmaplk r = 0 (0xfffffd805ad76040)
#0  witness_lock+0x44d
#1  rw_enter+0x3e1 sys/kern/kern_rwlock.c:310
#2  vm_map_lock_ln+0xda sys/uvm/uvm_map.c:5292
#3  uvmfault_lookup+0xb9 sys/uvm/uvm_fault.c:1766
#4  uvm_fault_check+0x660 uvmfault_amapcopy sys/uvm/uvm_fault.c:236 [inline]
#4  uvm_fault_check+0x660 sys/uvm/uvm_fault.c:711
#5  uvm_fault+0xf2 sys/uvm/uvm_fault.c:601
#6  upageflttrap+0x82 sys/arch/amd64/amd64/trap.c:181
#7  usertrap+0x1aa sys/arch/amd64/amd64/trap.c:403
#8  recall_trap+0x8
Process 34630 (syz-executor.7) thread 0xffff800024bead28 (255192)
exclusive rwlock vmmaplk r = 0 (0xfffffd805ad76770)
#0  witness_lock+0x44d
#1  rw_enter+0x3e1 sys/kern/kern_rwlock.c:310
#2  vm_map_lock_ln+0xda sys/uvm/uvm_map.c:5292
#3  uvmfault_lookup+0xb9 sys/uvm/uvm_fault.c:1766
#4  uvm_fault_check+0x660 uvmfault_amapcopy sys/uvm/uvm_fault.c:236 [inline]
#4  uvm_fault_check+0x660 sys/uvm/uvm_fault.c:711
#5  uvm_fault+0xf2 sys/uvm/uvm_fault.c:601
#6  upageflttrap+0x82 sys/arch/amd64/amd64/trap.c:181
#7  usertrap+0x1aa sys/arch/amd64/amd64/trap.c:403
#8  recall_trap+0x8
Process 54321 (syz-executor.5) thread 0xffff800024beaa88 (314285)
exclusive rwlock vmmaplk r = 0 (0xfffffd805ad76a50)
#0  witness_lock+0x44d
#1  rw_enter+0x3e1 sys/kern/kern_rwlock.c:310
#2  vm_map_lock_ln+0xda sys/uvm/uvm_map.c:5292
#3  uvmspace_fork+0x103 sys/uvm/uvm_map.c:3905
#4  process_new+0x304 sys/kern/kern_fork.c:260
#5  fork1+0x30b sys/kern/kern_fork.c:379
#6  syscall+0x435 mi_syscall sys/sys/syscall_mi.h:101 [inline]
#6  syscall+0x435 sys/arch/amd64/amd64/trap.c:585
#7  Xsyscall+0x128
exclusive rwlock vmmaplk r = 0 (0xfffffd807390ebc0)
#0  witness_lock+0x44d
#1  rw_enter+0x3e1 sys/kern/kern_rwlock.c:310
#2  vm_map_lock_ln+0xda sys/uvm/uvm_map.c:5292
#3  uvmspace_fork+0x37 sys/uvm/uvm_map.c:3896
#4  process_new+0x304 sys/kern/kern_fork.c:260
#5  fork1+0x30b sys/kern/kern_fork.c:379
#6  syscall+0x435 mi_syscall sys/sys/syscall_mi.h:101 [inline]
#6  syscall+0x435 sys/arch/amd64/amd64/trap.c:585
#7  Xsyscall+0x128
Process 56194 (reaper) thread 0xffff8000212337a8 (471103)
exclusive rwlock kmmaplk r = 0 (0xffffffff82a2dfe0)
#0  witness_lock+0x44d
#1  rw_enter+0x3e1 sys/kern/kern_rwlock.c:310
#2  vm_map_lock_ln+0xda sys/uvm/uvm_map.c:5292
#3  uvm_unmap+0x78 sys/uvm/uvm_map.c:1845
#4  uvm_uarea_free+0x35 sys/uvm/uvm_glue.c:288
#5  reaper+0x168 sys/kern/kern_exit.c:437
#6  proc_trampoline+0x1c
ddb{0}> show malloc
           Type InUse  MemUse  HighUse   Limit  Requests Type Lim
         devbuf 10249   6528K    7449K  78643K     54403        0
            pcb    24     26K      30K  78643K      4237        0
         rtable   232     21K      23K  78643K      7323        0
         ifaddr   169     47K      55K  78643K      3738        0
         sysctl     3      1K       1K  78643K        11        0
       counters    56     35K      36K  78643K      2104        0
       ioctlops     0      0K       6K  78643K      8093        0
            iov     0      0K      28K  78643K      4593        0
          mount     1      1K       1K  78643K         1        0
            log     0      0K       0K  78643K         4        0
         vnodes  1536     96K      96K  78643K     15178        0
      UFS quota     1     32K      32K  78643K         1        0
      UFS mount     5     36K      36K  78643K         5        0
            shm     2      1K       9K  78643K       272        0
         VM map     2      1K       1K  78643K         2        0
            sem    22     16K      32K  78643K       227        0
        dirhash    12      2K       2K  78643K        12        0
           ACPI  1697    195K     286K  78643K     12548        0
      file desc    14     49K      93K  78643K     27636        0
          sigio     1      0K       0K  78643K       539        0
           proc    72    115K     115K  78643K      4722        0
        subproc   104      6K       7K  78643K      1472        0
    NFS srvsock     1      0K       0K  78643K         1        0
     NFS daemon     1     16K      16K  78643K         1        0
    ip_moptions     0      0K       0K  78643K      1985        0
       in_multi    83      5K       6K  78643K      1918        0
    ether_multi     1      0K       0K  78643K       154        0
            mrt     1      0K       0K  78643K       162        0
    ISOFS mount     1     32K      32K  78643K         1        0
  MSDOSFS mount     1     16K      16K  78643K         1        0
           ttys   247   1102K    1102K  78643K       247        0
           exec     0      0K       2K  78643K      6782        0
     pfkey data     0      0K       0K  78643K         7        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   782   2102K    2103K  78643K    158632        0
       UVM aobj   131      8K       8K  78643K       142        0
        memdesc     1      4K       4K  78643K         1        0
    crypto data     1      1K       1K  78643K         1        0
    ip6_options     0      0K       0K  78643K      1107        0
            NDP    16      0K       2K  78643K       772        0
           temp   145   4734K   70270K  78643K    202442        0
         kqueue    12     18K      24K  78643K      1781        0
      SYN cache     2     16K      16K  78643K         2        0
ddb{0}> 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     1645    0     1642    21    20     1     3     0     8    0
rtentry    112     1892    0     1806     4     0     4     4     0     8    0
unpcb      144    26618    0    26603   230   224     6    10     0     8    5
syncache   296      179    0      179    43    43     0     1     0     8    0
tcpqe       32      151    0      151    15    15     0     1     0     8    0
tcpcb      768    52987    0    52977  1513  1504     9    48     0     8    7
arp        120      242    0      229     1     0     1     1     0     8    0
inpcb      368    68847    0    68829   925   916     9    29     0     8    7
ip6q        72        3    0        3     1     1     0     1     0     8    0
ip6af       40        6    0        6     1     1     0     1     0     8    0
nd6         48      393    0      372     1     0     1     1     0     8    0
pkpcb       40      100    0      100    15    15     0     1     0     8    0
kcovpl      48      112    0      104     1     0     1     1     0     8    0
ppxss      1256     669    0      669    50    49     1     1     0     8    1
pppxif     1704     387    0      387    38    38     0     1     0     8    0
pfstscr     40       98    0       98    10    10     0     1     0     8    0
pffrag     232      133    0      130     5     4     1     1     0   482    0
pffrnode    88      131    0      128     5     4     1     1     0     8    0
pffrent     40      396    0      393     5     4     1     1     0     8    0
pfosfp      40     1438    0     1012     5     0     5     5     0     8    0
pfosfpen   112     1438    0      719    21     0    21    21     0     8    0
pfrktable  1344     829    0      821    12    11     1     2     0     8    0
pfanchor   1280     733    0      300    40     3    37    37     0     8    0
pftag       88       13    0       11     4     3     1     1     0     8    0
pfqueue    264        6    0        6     2     2     0     1     0     8    0
pfstitem    24       30    0       28     1     0     1     1     0     8    0
pfstkey    120      216    0      214     1     0     1     1     0     8    0
pfstate    336      122    0      120     3     2     1     3     0     8    0
pfrule     1360     347    0      340     5     4     1     2     0     8    0
rttmr      136       43    0       43    13    13     0     1     0     8    0
art_heap8  4096      22    0       21    18    17     1     2     0     8    0
art_heap4  256     8031    0     7596    77    47    30    31     0     8    0
art_table   32     8053    0     7617     4     0     4     4     0     8    0
art_node    16     1878    0     1803     1     0     1     1     0     8    0
sysvmsgpl   40        4    0        2     1     0     1     1     0     8    0
semapl     112      205    0      185     1     0     1     1     0     8    0
shmpl      112      139    0       11     4     0     4     4     0     8    0
dirhash    1024      17    0        0     3     0     3     3     0     8    0
dino2pl    256    38186    0    36572   102     0   102   102     0     8    0
ffsino     272    38186    0    36572   109     0   109   109     0     8    0
nchpl      144    75581    0    75017    63    39    24    63     0     8    0
rtmask      32       21    0       21     8     8     0     1     0     8    0
uvmvnodes   80    18228    0        0   372     0   372   372     0     8    0
vnodes     216    18228    0        0  1013     0  1013  1013     0     8    0
namei      1024  264722    0   264722    12    11     1     3     0     8    1
percpumem   16     1064    0     1024     1     0     1     1     0     8    0
vcpupl     2048     377    0        0    48     0    48    48     0     8    0
vmpool     568      519    0      142    28     1    27    27     0     8    0
pfiaddrpl  120      328    0      324     5     4     1     1     0     8    0
kstatmem   264     1036    0     1004     7     4     3     3     0     8    0
scsiplug    72       34    0       34     9     9     0     1     0     8    0
scxspl     216   215968    0   215968    49    48     1     8     0     8    1
plimitpl   152     4084    0     4068     1     0     1     1     0     8    0
sigapl     424    27799    0    27732    12     4     8     8     0     8    0
futexpl     64   280792    0   280790     5     4     1     1     0     8    0
knotepl    120     1535    0        0    12     1    11    11     0     8    0
kqueuepl   216     4571    0     4563    81    80     1     5     0     8    0
pipepl     320     5972    0     5944   154   147     7     8     0     8    4
fdescpl    496    27717    0    27690     8     4     4     5     0     8    0
filepl     152   224137    0   223886   370   352    18    25     0     8    8
lockfpl    104     8862    0     8860    11    10     1     2     0     8    0
lockfspl    48     2699    0     2697     1     0     1     1     0     8    0
sessionpl  144      129    0      112     1     0     1     1     0     8    0
pgrppl      48      390    0      373     1     0     1     1     0     8    0
ucredpl    104    24043    0    24021     1     0     1     1     0     8    0
zombiepl   144    29900    0    29898     7     6     1     1     0     8    0
processpl  1064   27799    0    27732     5     0     5     5     0     8    0
procpl     672    74823    0    74737    47    38     9    10     0     8    0
srpgc       96      124    0      124    35    35     0     1     0     8    0
sosppl     168      204    0      204    32    32     0     1     0     8    0
sockpl     488    97251    0    97214  1998  1986    12    45     0     8    7
mcl64k     65536     17    0        0     3     0     3     3     0     8    0
mcl16k     16384     17    0        0     3     0     3     3     0     8    0
mcl12k     12288     33    0        0     2     0     2     2     0     8    0
mcl9k      9216      20    0        0     2     0     2     2     0     8    0
mcl8k      8192      34    0        0     3     0     3     3     0     8    0
mcl4k      4096      25    0        0     3     0     3     3     0     8    0
mcl2k2     2112       5    0        0     1     0     1     1     0     8    0
mcl2k      2048     531    0        0    47    22    25    47     0     8    0
mtagpl      96     1253    0        0    12     0    12    12     0     8    0
mbufpl     256     7796    0        0   420     0   420   420     0     8    0
bufpl      288    46210    0    38280   568     1   567   567     0     8    0
anonpl      24  5404588    0  5385867   295   163   132   147     0   186    0
amapchunkpl 152  468813    0   468077   171   138    33    46     0   158    0
amappl16   200    78535    0    77813   324   284    40    51     0     8    0
amappl15   192     3953    0     3938     2     1     1     2     0     8    0
amappl14   184     1632    0     1621     1     0     1     1     0     8    0
amappl13   176     3041    0     3039     1     0     1     1     0     8    0
amappl12   168     5096    0     5093     2     1     1     1     0     8    0
amappl11   160     4432    0     4412     2     1     1     2     0     8    0
amappl10   152     4653    0     4646     1     0     1     1     0     8    0
amappl9    144     1670    0     1662     2     1     1     1     0     8    0
amappl8    136     8191    0     8012     9     2     7     7     0     8    0
amappl7    128     5630    0     5607     1     0     1     1     0     8    0
amappl6    120     1641    0     1611     3     2     1     2     0     8    0
amappl5    112    23500    0    23484     1     0     1     1     0     8    0
amappl4    104    10523    0    10474     7     5     2     2     0     8    0
amappl3     96    87534    0    87481     3     1     2     2     0     8    0
amappl2     88    33647    0    33576     3     1     2     3     0     8    0
amappl1     80   652794    0   652062    24     6    18    22     0     8    0
amappl      88   155755    0   155423    11     2     9     9     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      141    0       11     3     0     3     3     0     8    0
uaddrrnd    24    28236    0    27831     3     0     3     3     0     8    0
uaddrbest   32        2    0        0     1     0     1     1     0     8    0
uaddr       24    28236    0    27831     3     0     3     3     0     8    0
vmmpekpl   168   199638    0   199534     6     0     6     6     0     8    0
vmmpepl    168  2721497    0  2717755   594   408   186   211     0   357    0
vmsppl     368    28235    0    27831    41     3    38    38     0     8    0
rwobjpl     56   667599    0   647080   329    38   291   291     0     8    0
pdppl      4096   56479    0    56039  1447  1001   446   446     0     8    6
pvpl        32 10563502    0 10538924   739   526   213   273     0   265    0
pmappl     248    28235    0    27831    29     3    26    26     0     8    0
extentpl    40       56    0       38     1     0     1     1     0     8    0
phpool     112     3890    0     2075    52     0    52    52     0     8    0
ddb{0}> machine ddbcpu 0
Invalid cpu 0
ddb{0}> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437
witness_checkorder(ffff800001012028,9,0) at witness_checkorder+0x138 witness_debugger sys/kern/subr_witness.c:2502 [inline]
witness_checkorder(ffff800001012028,9,0) at witness_checkorder+0x138 sys/kern/subr_witness.c:772
rw_enter_write(ffff800001012018) at rw_enter_write+0x5b sys/kern/kern_rwlock.c:128
unveil_delete_names(ffff800001012000) at unveil_delete_names+0x30 unvname_rbt_RBT_MIN sys/kern/kern_unveil.c:92 [inline]
unveil_delete_names(ffff800001012000) at unveil_delete_names+0x30 sys/kern/kern_unveil.c:102
unveil_destroy(ffff80002129b618) at unveil_destroy+0xad sys/kern/kern_unveil.c:183
exit1(ffff800024beba48,0,0,1) at exit1+0x3d5 sys/kern/kern_exit.c:219
sys_exit(ffff800024beba48,ffff80002e58d350,ffff80002e58d3a0) at sys_exit+0x16 sys/kern/kern_exit.c:89
syscall(ffff80002e58d420) at syscall+0x435 mi_syscall sys/sys/syscall_mi.h:101 [inline]
syscall(ffff80002e58d420) at syscall+0x435 sys/arch/amd64/amd64/trap.c:585
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7fffffb7c0, count: -9
ddb{0}> machine ddbcpu 1
Stopped at      x86_ipi_db+0x1a:        addq    $0x8,%rsp
ddb{1}> trace
x86_ipi_db(ffff800020dd8ff0) 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
acpicpu_idle() at acpicpu_idle+0x312 sys/dev/acpi/acpicpu.c:1206
sched_idle(ffff800020dd8ff0) at sched_idle+0x417 sys/kern/kern_sched.c:175
end trace frame: 0x0, count: -5

Crashes (1):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets Title
ci-openbsd-multicore 2022/10/19 13:31 openbsd a89e3c5aa499 b31320fc .config console log report [disk image] [bsd.gdb] [kernel image] witness: lock_object uninitialized: ADDR
* Struck through repros no longer work on HEAD.