syzbot


witness: denied attempt to set clock forward to ADDR (2)

Status: upstream: reported on 2025/04/24 10:00
Reported-by: syzbot+592bc5488b4297005a9e@syzkaller.appspotmail.com
First crash: 14d, last: 14d
Similar bugs (1)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
openbsd witness: denied attempt to set clock forward to ADDR 1 300d 300d 0/3 auto-obsoleted due to no activity on 2024/10/09 20:43

Sample crash report:
witness: denied attempt to set clock forward to 13622315181289262
lock order reversal:
denied attempt to set clock forward to 13622315181289262
 1st 0xffff8000014a5e60 sbufsnd (&so->so_snd.sb_lock)
denied attempt to set clock forward to 13622315181289262
 2nd 0xfffffd806dd29410 inode (&ip->i_lock)
denied attempt to set clock forward to 13622315181289262
lock order [1] sbufsnd (&so->so_snd.sb_lock) -> [2] inode (&ip->i_lock)
lock order data 0xffffffff8341f248 -> 0xffffffff833bd23c is missing
lock order [2] inode (&ip->i_lock) -> [3] sbufrcv (&so->so_rcv.sb_lock)
#0  rw_do_enter_write+0xb7 sys/kern/kern_rwlock.c:233
#1  sblock+0xb7 sys/kern/uipc_socket2.c:536
#2  soreceive+0x28e sys/kern/uipc_socket.c:881
#3  fifo_read+0x11a sys/miscfs/fifofs/fifo_vnops.c:264
#4  VOP_READ+0x102 sys/kern/vfs_vops.c:227
#5  vn_rdwr+0x15b sys/kern/vfs_vnops.c:-1
#6  vndsetcred+0xa1 sys/dev/vnd.c:684
#7  vndioctl+0xe6c sys/dev/vnd.c:485
#8  VOP_IOCTL+0xac sys/kern/vfs_vops.c:264
#9  vn_ioctl+0xf8 sys/kern/vfs_vnops.c:531
#10 sys_ioctl+0x5c3 sys/kern/sys_generic.c:-1
#11 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#11 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577
#12 Xsyscall+0x128
lock order [3] sbufrcv (&so->so_rcv.sb_lock) -> [1] sbufsnd (&so->so_snd.sb_lock)
#0  rw_do_enter_write+0xb7 sys/kern/kern_rwlock.c:233
#1  sblock+0xb7 sys/kern/uipc_socket2.c:536
#2  sosplice+0x40d sys/kern/uipc_socket.c:1366
#3  sys_setsockopt+0x2ba sys/kern/uipc_syscalls.c:1221
#4  syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#4  syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577
#5  Xsyscall+0x128
Stopped at      db_enter+0x25:  addq    $0x8,%rsp
ddb{0}> 
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+0x25 sys/arch/amd64/amd64/db_interface.c:438
witness_checkorder(fffffd806dd29410,9,0) at witness_checkorder+0x10fb sys/kern/subr_witness.c:-1
rw_do_enter_write(fffffd806dd293f8,1) at rw_do_enter_write+0xb7 sys/kern/kern_rwlock.c:233
rrw_enter(fffffd806dd293f8,1) at rrw_enter+0xc6 sys/kern/kern_rwlock.c:616
VOP_LOCK(fffffd805dea3898,2001) at VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524
vn_lock(fffffd805dea3898,2001) at vn_lock+0xa4 sys/kern/vfs_vnops.c:570
vfs_lookup(ffff80003c416938) at vfs_lookup+0x109 sys/kern/vfs_lookup.c:418
namei(ffff80003c416938) at namei+0x7aa sys/kern/vfs_lookup.c:250
unp_connect(ffff8000014a5c88,fffffd806f197700,ffff8000fffea548) at unp_connect+0x27d sys/kern/uipc_usrreq.c:868
uipc_dgram_send(ffff8000014a5c88,fffffd805f411b00,fffffd806f197700,0) at uipc_dgram_send+0x131 sys/kern/uipc_usrreq.c:607
sosend(ffff8000014a5c88,fffffd806f197700,ffff80003c416bb8,0,0,8) at sosend+0x804 sys/kern/uipc_socket.c:-1
sendit(ffff8000fffea548,3,ffff80003c416d30,8,ffff80003c416df0) at sendit+0x721 sys/kern/uipc_syscalls.c:779
sys_sendmsg(ffff8000fffea548,ffff80003c416ea0,ffff80003c416df0) at sys_sendmsg+0x246 sys/kern/uipc_syscalls.c:597
syscall(ffff80003c416ea0) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80003c416ea0) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x4b15a59e9f0, count: -15
ddb{0}> show registers
rdi                                0
rsi                          0x80000    acpi_pdirpa+0x6be71
rbp               0xffff80003c4165b0
rbx               0xfffffd800472ce88
rdx               0xffff800001445a40
rcx               0xffff8000fffea548
rax                          0x7ffff    acpi_pdirpa+0x6be70
r8                0xffff80003c416490
r9                0x8080808080808080
r10               0x26e544c06cc35d12
r11               0x2acd98769e4153da
r12                                0
r13               0xfffffd8003f44f40
r14                              0x3
r15                       0xffffffff
rip               0xffffffff82428565    db_enter+0x25
cs                               0x8
rflags                         0x246
rsp               0xffff80003c4165a0
ss                              0x10
db_enter+0x25:  addq    $0x8,%rsp
ddb{0}> show proc
PROC (syz-executor) tid=427414 pid=83228 tcnt=2 stat=onproc
    flags process=0 proc=4000000<THREAD>
    runpri=32, usrpri=86, slppri=32, nice=20
    wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0
    forw=0xffffffffffffffff, list=0xffff8000fffeb738,0xffff8000fffeaa78
    process=0xffff8000fffe44c8 user=0xffff80003c411000, vmspace=0xfffffd806d10f790
    estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0
ddb{0}> ps
   PID     TID   PPID    UID  S       FLAGS  WAIT          COMMAND
 43903  213089   3653      0  7           0                syz-executor
 83228   63620  11085      0  2           0                syz-executor
*83228  427414  11085      0  7   0x4000000                syz-executor
 69234  190335  49579      0  2           0                syz-executor
 69234  246382  49579      0  3   0x4000080  fsleep        syz-executor
  7510  344021  15747      0  2           0                syz-executor
  7510  455737  15747      0  2   0x4000000                syz-executor
  7510  149395  15747      0  3   0x4000080  fsleep        syz-executor
 69092  108417  61168      0  3        0x80  nanoslp       syz-executor
 69092  448107  61168      0  3   0x4000080  netcon        syz-executor
 69092  275587  61168      0  3   0x4000080  fsleep        syz-executor
 50941  205237      0      0  3     0x14200  acct          acct
 74294  253647      1      0  3        0x80  nanoslp       init
  2180  111797      0      0  3     0x14200  bored         sosplice
  3653  302555  21110      0  3        0x82  nanoslp       syz-executor
 23011   85079  21110      0  3         0x2  biowait       syz-executor
 15747  509847  21110      0  3        0x82  nanoslp       syz-executor
 52693   11475  21110      0  3        0x82  nanoslp       syz-executor
 49579  514136  21110      0  3        0x82  nanoslp       syz-executor
 11085  157611  21110      0  3        0x82  nanoslp       syz-executor
 61168  515072  21110      0  3        0x82  nanoslp       syz-executor
 78396  106436  21110      0  3         0x2  biowait       syz-executor
 21110  429079  17702      0  3        0x82  kqread        syz-executor
 17702  200635  37240      0  3    0x10008a  sigsusp       ksh
 37240  419049  42504      0  3        0x98  kqread        sshd-session
 42504  274200  93566      0  3        0x92  kqread        sshd-session
 93566   38187      1      0  3        0x88  kqread        sshd
  9031  328397  53742     74  3   0x1100092  bpf           pflogd
 53742  272115      1      0  3        0x80  sbwait        pflogd
 20148  462666  12238     73  3   0x1100090  kqread        syslogd
 12238  278568      1      0  3    0x100082  sbwait        syslogd
 38014  296443      1      0  3    0x100080  kqread        resolvd
 22356   82306  91413     77  3    0x100092  kqread        dhcpleased
 14964   47975  91413     77  3    0x100092  kqread        dhcpleased
 91413  137856      1      0  3        0x80  kqread        dhcpleased
 80092    5632      0      0  3     0x14200  bored         smr
 68544  467718      0      0  3     0x14200  pgzero        zerothread
 11783   72113      0      0  3     0x14200  aiodoned      aiodoned
 31894  291735      0      0  3     0x14200  syncer        update
 92504  432030      0      0  3     0x14200  cleaner       cleaner
 52721  312650      0      0  3     0x14200  reaper        reaper
 49000  450562      0      0  3     0x14200  pgdaemon      pagedaemon
 73320  331505      0      0  3     0x14200  bored         viomb
 36814  297112      0      0  3  0x40014200  acpi0         acpi0
  4065  454501      0      0  3  0x40014200                idle1
 31063  167630      0      0  3     0x14200  bored         softnet3
 34156   13470      0      0  3     0x14200  bored         softnet2
 26836  317599      0      0  3     0x14200  bored         softnet1
 34069  253024      0      0  3     0x14200  bored         softnet0
 16822  395835      0      0  3     0x14200  bored         systqmp
 99724  417916      0      0  3     0x14200  bored         systq
  6948   33488      0      0  3     0x14200  tmoslp        softclockmp
 99085    3792      0      0  3  0x40014200  tmoslp        softclock
 94341  488440      0      0  3  0x40014200                idle0
     1  248389      0      0  3        0x82  wait          init
     0       0     -1      0  3  0x10010200  scheduler     swapper
ddb{0}> show all locks
Process 83228 (syz-executor) thread 0xffff8000fffea548 (427414)
exclusive kernel_lock &kernel_lock r = 0 (0xffffffff838c1ae0)
#0  witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0  witness_lock+0x5bb sys/kern/subr_witness.c:1160
#1  unp_connect+0x26c sys/kern/uipc_usrreq.c:868
#2  uipc_dgram_send+0x131 sys/kern/uipc_usrreq.c:607
#3  sosend+0x804 sys/kern/uipc_socket.c:-1
#4  sendit+0x721 sys/kern/uipc_syscalls.c:779
#5  sys_sendmsg+0x246 sys/kern/uipc_syscalls.c:597
#6  syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#6  syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577
#7  Xsyscall+0x128
exclusive rwlock sbufsnd r = 0 (0xffff8000014a5e60)
#0  witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0  witness_lock+0x5bb sys/kern/subr_witness.c:1160
#1  rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316
#2  sblock+0xb7 sys/kern/uipc_socket2.c:536
#3  sosend+0x2e2 sys/kern/uipc_socket.c:630
#4  sendit+0x721 sys/kern/uipc_syscalls.c:779
#5  sys_sendmsg+0x246 sys/kern/uipc_syscalls.c:597
#6  syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#6  syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577
#7  Xsyscall+0x128
Process 23011 (syz-executor) thread 0xffff8000ffff07d0 (85079)
exclusive rrwlock inode r = 0 (0xfffffd806dd7ec08)
#0  witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0  witness_lock+0x5bb sys/kern/subr_witness.c:1160
#1  rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316
#2  rrw_enter+0xc6 sys/kern/kern_rwlock.c:616
#3  VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524
#4  vn_lock+0xa4 sys/kern/vfs_vnops.c:570
#5  vget+0x2bd sys/kern/vfs_subr.c:694
#6  ufs_ihashget+0x185 sys/ufs/ufs/ufs_ihash.c:98
#7  ffs_vget+0x8c sys/ufs/ffs/ffs_vfsops.c:1201
#8  ufs_lookup+0x19f8 sys/ufs/ufs/ufs_lookup.c:478
#9  VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85
#10 vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566
#11 namei+0x7aa sys/kern/vfs_lookup.c:250
#12 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1866
#13 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#13 syscall+0xb08 sys/arch/amd64/amd64/trap.c:577
#14 Xsyscall+0x128
exclusive rrwlock inode r = 0 (0xfffffd806cb1a8b8)
#0  witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0  witness_lock+0x5bb sys/kern/subr_witness.c:1160
#1  rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316
#2  rrw_enter+0xc6 sys/kern/kern_rwlock.c:616
#3  VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524
#4  vn_lock+0xa4 sys/kern/vfs_vnops.c:570
#5  vfs_lookup+0x109 sys/kern/vfs_lookup.c:418
#6  namei+0x7aa sys/kern/vfs_lookup.c:250
#7  dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1866
#8  syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#8  syscall+0xb08 sys/arch/amd64/amd64/trap.c:577
#9  Xsyscall+0x128
Process 78396 (syz-executor) thread 0xffff8000ffff22a0 (106436)
exclusive rrwlock inode r = 0 (0xfffffd806be4be20)
#0  witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0  witness_lock+0x5bb sys/kern/subr_witness.c:1160
#1  rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316
#2  rrw_enter+0xc6 sys/kern/kern_rwlock.c:616
#3  VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524
#4  ufs_ihashins+0x4f ufs_ihash sys/ufs/ufs/ufs_ihash.c:-1 [inline]
#4  ufs_ihashins+0x4f sys/ufs/ufs/ufs_ihash.c:159
#5  ffs_vget+0x187 sys/ufs/ffs/ffs_vfsops.c:1230
#6  ffs_inode_alloc+0x283 sys/ufs/ffs/ffs_alloc.c:393
#7  ufs_mkdir+0x113 sys/ufs/ufs/ufs_vnops.c:1112
#8  VOP_MKDIR+0x102 sys/kern/vfs_vops.c:394
#9  domkdirat+0x179 sys/kern/vfs_syscalls.c:3117
#10 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#10 syscall+0xb08 sys/arch/amd64/amd64/trap.c:577
#11 Xsyscall+0x128
exclusive rrwlock inode r = 0 (0xfffffd807d907790)
#0  witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0  witness_lock+0x5bb sys/kern/subr_witness.c:1160
#1  rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316
#2  rrw_enter+0xc6 sys/kern/kern_rwlock.c:616
#3  VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524
#4  vn_lock+0xa4 sys/kern/vfs_vnops.c:570
#5  vfs_lookup+0x109 sys/kern/vfs_lookup.c:418
#6  namei+0x7aa sys/kern/vfs_lookup.c:250
#7  domkdirat+0x8b sys/kern/vfs_syscalls.c:3102
#8  syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#8  syscall+0xb08 sys/arch/amd64/amd64/trap.c:577
#9  Xsyscall+0x128
ddb{0}> show malloc
           Type InUse  MemUse  HighUse   Limit  Requests Type Lim
         devbuf 10243  11190K   11249K 166960K     11808        0
            pcb    17     12K      12K 166960K       101        0
         rtable   227      8K       8K 166960K       439        0
             pf    39     18K      19K 166960K        84        0
         ifaddr    42      7K       7K 166960K        67        0
        ifgroup    63      2K       3K 166960K       110        0
         sysctl     2      1K       3K 166960K         3        0
       counters    68     36K      37K 166960K       110        0
       ioctlops     0      0K       4K 166960K      1537        0
            iov     0      0K      12K 166960K        18        0
          mount     1      1K       1K 166960K         1        0
            log     0      0K       0K 166960K         4        0
         vnodes  1349     85K      85K 166960K      1744        0
      UFS quota     1     32K      32K 166960K         1        0
      UFS mount     5     36K      36K 166960K         5        0
            shm     2      1K       9K 166960K        18        0
         VM map     2      1K       1K 166960K         2        0
            sem    12      0K       0K 166960K        23        0
        dirhash    12      2K       2K 166960K        21        0
           ACPI  1692    195K     286K 166960K     12470        0
      file desc    16     57K      97K 166960K       583        0
          sigio     0      0K       0K 166960K         7        0
           proc    63     79K     140K 166960K       562        0
        subproc    72      4K       4K 166960K        72        0
    NFS srvsock     1      0K       0K 166960K         1        0
     NFS daemon     1     16K      16K 166960K         1        0
    ip_moptions     0      0K       0K 166960K       114        0
       in_multi    87      6K       7K 166960K       115        0
    ether_multi     1      0K       0K 166960K         2        0
            mrt     0      0K       0K 166960K         4        0
    ISOFS mount     1     32K      32K 166960K         1        0
  MSDOSFS mount     1     16K      16K 166960K         1        0
           ttys   235   1049K    1049K 166960K       235        0
           exec     0      0K       1K 166960K       410        0
   fusefs mount     1     32K      32K 166960K         1        0
            tdb     3      0K       0K 166960K         3        0
        VM swap     8     62K      64K 166960K        10        0
       UVM amap   227    164K     183K 166960K      7062        0
       UVM aobj    32      2K       2K 166960K        32        0
     pinsyscall    40     80K     106K 166960K      1704        0
        memdesc     1      4K       4K 166960K         1        0
    crypto data     1      1K       1K 166960K         1        0
    ip6_options     1      0K       0K 166960K        12        0
            NDP    14      0K       1K 166960K        42        0
           temp    54   8678K    8746K 166960K     15068        0
         kqueue    13     20K      34K 166960K        91        0
      SYN cache     2     16K      16K 166960K         2        0
ddb{0}> show all pools
Name      Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
plcache    128       26    0        0     1     0     1     1     0     8    0
rtpcb      120      166    0      163     3     0     3     3     0     8    2
rtentry    176      126    0       24     6     0     6     6     0     8    0
unpcb      144      462    0      444     4     3     1     4     0     8    0
syncache   336        4    0        4     1     1     0     1     0     8    0
tcpqe       32        1    0        1     1     1     0     1     0     8    0
tcpcb      808      110    0      102     2     1     1     2     0     8    0
arp        128       18    0        2     1     0     1     1     0     8    0
inpcb      384      438    0      427     5     0     5     5     0     8    3
nd6        144       29    0        3     1     0     1     1     0     8    0
pkpcb       40        3    0        3     1     1     0     1     0     8    0
kcovpl      48        8    0        0     1     0     1     1     0     8    0
mppekey    1024       1    0        1     1     1     0     1     0     8    0
ppxss      1192      13    0       13     2     1     1     1     0     8    1
pppxif     1504       7    0        7     2     1     1     1     0     8    1
pffrag     232        4    0        1     1     0     1     1     0   482    0
pffrnode    88        4    0        1     1     0     1     1     0     8    0
pffrent     40       38    0       35     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       51    0       12     1     0     1     1     0     8    0
pfstkey    128       51    0       12     2     0     2     2     0     8    0
pfstate    384       51    0       12     5     0     5     5     0     8    0
pfrule     1344      21    0       16     2     1     1     2     0     8    0
rttmr      136        1    0        1     1     1     0     1     0     8    0
art_heap8  4096       1    0        0     1     0     1     1     0     8    0
art_heap4  256      496    0       84    29     2    27    29     0     8    0
art_table   32      497    0       84     4     0     4     4     0     8    0
art_node    16      123    0       31     1     0     1     1     0     8    0
sysvmsgpl   40        5    0        3     1     0     1     1     0     8    0
semupl     112        1    0        1     1     1     0     1     0     8    0
semapl     112       18    0        8     1     0     1     1     0     8    0
shmpl      112       29    0        0     1     0     1     1     0     8    0
dirhash    1024      23    0        6     3     0     3     3     0     8    0
dino2pl    256     2425    0      915    95     0    95    95     0     8    0
ffsino     288     2425    0      915   109     0   109   109     0     8    0
nchpl      144     3240    0     1553    64     1    63    64     0     8    0
uvmvnodes   80     2679    0        0    55     0    55    55     0     8    0
vnodes     216     2679    0        0   149     0   149   149     0     8    0
namei      1024   10174    0    10172     3     1     2     2     0     8    1
percpumem   16       70    0       21     1     0     1     1     0     8    0
kstatmem   264       52    0       24     4     1     3     3     0     8    1
scsiplug    72        1    0        1     1     1     0     1     0     8    0
scxspl     216    10173    0    10170    11     3     8     8     1     8    7
plimitpl   152      172    0      156     1     0     1     1     0     8    0
sigapl     424      898    0      848     8     2     6     7     0     8    0
futexpl     64     6347    0     6344     1     0     1     1     0     8    0
knotepl    120      308    0        0    10     0    10    10     0     8    0
kqueuepl   224      220    0      211     5     2     3     3     0     8    2
pipepl     336      213    0      186     3     0     3     3     0     8    0
fdescpl    520      876    0      846     3     0     3     3     0     8    0
filepl     160     4547    0     4334    18     3    15    15     0     8    4
lockfpl    104      117    0      115     1     0     1     1     0     8    0
lockfspl    48       49    0       47     1     0     1     1     0     8    0
sessionpl  144       24    0       16     1     0     1     1     0     8    0
pgrppl      48       35    0       19     1     0     1     1     0     8    0
ucredpl    104      690    0      676     1     0     1     1     0     8    0
zombiepl   144      849    0      848     1     0     1     1     0     8    0
processpl  1192     898    0      848     5     0     5     5     0     8    0
procpl     656     1631    0     1575     8     2     6     7     0     8    0
srpgc       96        2    0        2     1     1     0     1     0     8    0
sosppl     168        1    0        0     1     0     1     1     0     8    0
sockpl     728     1076    0     1044    19     6    13    13     0     8    8
mcl64k     65536     16    0        0     2     0     2     2     0     8    0
mcl16k     16384     13    0        0     2     0     2     2     0     8    0
mcl12k     12288      3    0        0     1     0     1     1     0     8    0
mcl8k      8192      17    0        0     3     0     3     3     0     8    0
mcl4k      4096     113    0        0    15     0    15    15     0     8    0
mcl2k2     2112       3    0        0     1     0     1     1     0     8    0
mcl2k      2048      30    0        0     4     0     4     4     0     8    0
mtagpl      96       13    0        0     1     0     1     1     0     8    0
mbufpl     256      822    0        0    51     0    51    51     0     8    0
bufpl      280     4502    0      125   313     0   313   313     0     8    0
anonpl      32     9338    0        0    76     0    76    76     0   246    0
amapchunkpl 152   22516    0    22009    33     2    31    32     0   158    8
amappl16   200     2948    0     2890    18     7    11    16     0     8    5
amappl15   192       24    0       23     1     0     1     1     0     8    0
amappl14   184      118    0      107     1     0     1     1     0     8    0
amappl13   176        4    0        4     1     1     0     1     0     8    0
amappl12   168     1539    0     1511     4     2     2     3     0     8    0
amappl11   160       51    0       36     1     0     1     1     0     8    0
amappl10   152        5    0        5     1     1     0     1     0     8    0
amappl9    144      245    0      245     1     1     0     1     0     8    0
amappl8    136       29    0       25     1     0     1     1     0     8    0
amappl7    128      112    0      101     1     0     1     1     0     8    0
amappl6    120      187    0      184     1     0     1     1     0     8    0
amappl5    112      136    0      126     1     0     1     1     0     8    0
amappl4    104      333    0      313     1     0     1     1     0     8    0
amappl3     96     4324    0     4229     5     1     4     4     0     8    1
amappl2     88      653    0      592     2     0     2     2     0     8    0
amappl1     80    10302    0     9731    14     0    14    14     0     8    0
amappl      88     6268    0     6111     5     0     5     5     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       31    0        0     1     0     1     1     0     8    0
uaddrrnd    24      876    0      846     1     0     1     1     0     8    0
uaddrbest   32        2    0        0     1     0     1     1     0     8    0
uaddr       24      876    0      846     1     0     1     1     0     8    0
vmmpekpl   168     8879    0     8837     3     0     3     3     0     8    0
vmmpepl    168    60678    0    58778   100     3    97   100     0   357    6
vmsppl     480      875    0      846     5     1     4     5     0     8    0
rwobjpl     72    21105    0    17489    67     0    67    67     0     8    0
pdppl      4096    1760    0     1692   110    38    72    88     0     8    4
pvpl        32    15664    0        0   127     0   127   127     0   265    0
pmappl     256      875    0      846     3     0     3     3     0     8    0
extentpl    40       45    0       27     1     0     1     1     0     8    0
phpool     112      440    0       46    12     0    12    12     0     8    0
ddb{0}> machine ddbcpu 0
Invalid cpu 0
ddb{0}> trace
db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438
witness_checkorder(fffffd806dd29410,9,0) at witness_checkorder+0x10fb sys/kern/subr_witness.c:-1
rw_do_enter_write(fffffd806dd293f8,1) at rw_do_enter_write+0xb7 sys/kern/kern_rwlock.c:233
rrw_enter(fffffd806dd293f8,1) at rrw_enter+0xc6 sys/kern/kern_rwlock.c:616
VOP_LOCK(fffffd805dea3898,2001) at VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524
vn_lock(fffffd805dea3898,2001) at vn_lock+0xa4 sys/kern/vfs_vnops.c:570
vfs_lookup(ffff80003c416938) at vfs_lookup+0x109 sys/kern/vfs_lookup.c:418
namei(ffff80003c416938) at namei+0x7aa sys/kern/vfs_lookup.c:250
unp_connect(ffff8000014a5c88,fffffd806f197700,ffff8000fffea548) at unp_connect+0x27d sys/kern/uipc_usrreq.c:868
uipc_dgram_send(ffff8000014a5c88,fffffd805f411b00,fffffd806f197700,0) at uipc_dgram_send+0x131 sys/kern/uipc_usrreq.c:607
sosend(ffff8000014a5c88,fffffd806f197700,ffff80003c416bb8,0,0,8) at sosend+0x804 sys/kern/uipc_socket.c:-1
sendit(ffff8000fffea548,3,ffff80003c416d30,8,ffff80003c416df0) at sendit+0x721 sys/kern/uipc_syscalls.c:779
sys_sendmsg(ffff8000fffea548,ffff80003c416ea0,ffff80003c416df0) at sys_sendmsg+0x246 sys/kern/uipc_syscalls.c:597
syscall(ffff80003c416ea0) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80003c416ea0) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x4b15a59e9f0, count: -15
ddb{0}> machine ddbcpu 1
Stopped at      x86_ipi_db+0x27:        addq    $0x8,%rsp
ddb{1}> trace
x86_ipi_db(ffff8000299edff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394
x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27
__mp_lock(ffffffff838c18d8) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline]
__mp_lock(ffffffff838c18d8) at __mp_lock+0x192 sys/kern/kern_lock.c:144
sys_mmap(ffff8000fffeacf8,ffff8000387fee70,ffff8000387fedc0) at sys_mmap+0x62f sys/uvm/uvm_mmap.c:292
syscall(ffff8000387fee70) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff8000387fee70) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x71d9fcd1eab0, count: -7

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/04/24 09:59 openbsd 31338944480d 9c80ffa0 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore witness: denied attempt to set clock forward to ADDR
* Struck through repros no longer work on HEAD.