syzbot


uvm_fault: dt_ioctl_record_stop (2)

Status: upstream: reported on 2025/08/01 00:51
Reported-by: syzbot+1ee7b3d649b3fd543300@syzkaller.appspotmail.com
First crash: 142d, last: 24m
Similar bugs (1)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
openbsd uvm_fault: dt_ioctl_record_stop -1 1306 142d 259d 3/3 fixed on 2025/08/01 00:18

Sample crash report:
uvm_fault(0xfffffd806caf2018, 0x0, 0, 1) -> e
kernel: page fault trap, code=0
Stopped at      dt_ioctl_record_stop+0x108:     movq    0(%r14),%r14
    TID    PID    UID     PRFLAGS     PFLAGS  CPU  COMMAND
dt_ioctl_record_stop(ffff80000149e000) at dt_ioctl_record_stop+0x108 sys/dev/dt/dt_dev.c:593
dtclose(11e5f,81,2000,ffff8000fffee2b0) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline]
dtclose(11e5f,81,2000,ffff8000fffee2b0) at dtclose+0x109 sys/dev/dt/dt_dev.c:239
spec_close(ffff80003c3fdee0) at spec_close+0x466 sys/kern/spec_vnops.c:-1
VOP_CLOSE(fffffd806841b6c8,81,fffffd80097fd5b0,ffff8000fffee2b0) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156
vn_closefile(fffffd8066d0ec60,ffff8000fffee2b0) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline]
vn_closefile(fffffd8066d0ec60,ffff8000fffee2b0) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615
fdrop(fffffd8066d0ec60,ffff8000fffee2b0) at fdrop+0x121 sys/kern/kern_descrip.c:1280
closef(fffffd8066d0ec60,ffff8000fffee2b0) at closef+0x192 sys/kern/kern_descrip.c:1264
fdfree(ffff8000fffee2b0) at fdfree+0x116 sys/kern/kern_descrip.c:1195
exit1(ffff8000fffee2b0,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215
sys_exit(ffff8000fffee2b0,ffff80003c3fe250,ffff80003c3fe1a0) at sys_exit+0x1a sys/kern/kern_exit.c:-1
syscall(ffff80003c3fe250) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80003c3fe250) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x77350a693a50, count: 3
https://www.openbsd.org/ddb.html describes the minimum info required in bug
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ddb{0}> 
ddb{0}> set $lines = 0
ddb{0}> set $maxwidth = 0
ddb{0}> show panic
*cpu0: uvm_fault(0xfffffd806caf2018, 0x0, 0, 1) -> e
ddb{0}> trace
dt_ioctl_record_stop(ffff80000149e000) at dt_ioctl_record_stop+0x108 sys/dev/dt/dt_dev.c:593
dtclose(11e5f,81,2000,ffff8000fffee2b0) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline]
dtclose(11e5f,81,2000,ffff8000fffee2b0) at dtclose+0x109 sys/dev/dt/dt_dev.c:239
spec_close(ffff80003c3fdee0) at spec_close+0x466 sys/kern/spec_vnops.c:-1
VOP_CLOSE(fffffd806841b6c8,81,fffffd80097fd5b0,ffff8000fffee2b0) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156
vn_closefile(fffffd8066d0ec60,ffff8000fffee2b0) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline]
vn_closefile(fffffd8066d0ec60,ffff8000fffee2b0) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615
fdrop(fffffd8066d0ec60,ffff8000fffee2b0) at fdrop+0x121 sys/kern/kern_descrip.c:1280
closef(fffffd8066d0ec60,ffff8000fffee2b0) at closef+0x192 sys/kern/kern_descrip.c:1264
fdfree(ffff8000fffee2b0) at fdfree+0x116 sys/kern/kern_descrip.c:1195
exit1(ffff8000fffee2b0,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215
sys_exit(ffff8000fffee2b0,ffff80003c3fe250,ffff80003c3fe1a0) at sys_exit+0x1a sys/kern/kern_exit.c:-1
syscall(ffff80003c3fe250) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80003c3fe250) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x77350a693a50, count: -12
ddb{0}> show registers
rdi                                0
rsi                                0
rbp               0xffff80003c3fde10
rbx                              0x1
rdx                                0
rcx               0xffff8000fffee2b0
rax               0xffffffff837fdef8    dt_prov_syscall
r8                                 0
r9                                 0
r10               0x380e59aa4331fb9d
r11               0xcb5da2330fe7481f
r12                                0
r13                                0
r14                                0
r15               0xffff8000014a1600
rip               0xffffffff8272c008    dt_ioctl_record_stop+0x108
cs                               0x8
rflags                       0x10207    __ALIGN_SIZE+0xf207
rsp               0xffff80003c3fdde0
ss                              0x10
dt_ioctl_record_stop+0x108:     movq    0(%r14),%r14
ddb{0}> show proc
PROC (syz-executor) tid=148049 pid=42363 tcnt=0 stat=onproc
    flags process=1008<EXITING,SINGLEEXIT> proc=2000<WEXIT>
    runpri=32, usrpri=86, slppri=32, nice=20
    wchan=0x0, wmesg=, ps_single=0xffff8000fffee2b0 scnt=-1 ecnt=1
    forw=0xffffffffffffffff, list=0xffff8000fffe62b8,0xffff8000fffee028
    process=0xffff80003c40e6a0 user=0xffff80003c3f9000, vmspace=0xfffffd806caf2018
    estcpu=36, cpticks=3, pctcpu=0.0, user=0, sys=1, intr=0
ddb{0}> ps
   PID     TID   PPID    UID  S       FLAGS  WAIT          COMMAND
 33577  196413  92332      0  2           0                syz-executor
 33577   13303  92332      0  3   0x4000080  fsleep        syz-executor
 34769  308009  72458      0  2           0                syz-executor
 34769   98366  72458      0  3   0x4000080  nanoslp       syz-executor
 34769  259063  72458      0  3   0x4000080  fsleep        syz-executor
 21661  298383  56716      0  3        0x82  nanoslp       syz-executor
 97171  454655  56716      0  3        0x82  piperd        syz-executor
 16932  352054  56716      0  3        0x82  wait          syz-executor
 67656  195976  56716      0  3        0x82  nanoslp       syz-executor
 59178  319111  56716      0  3        0x82  nanoslp       syz-executor
 72458  230867  56716      0  2         0x2                syz-executor
 92332  344244  56716      0  3        0x82  nanoslp       syz-executor
 31664  420090  56716      0  2         0x2                syz-executor
 56716   25153  84405      0  2        0x82                syz-executor
 84405  123231  83900      0  3    0x10008a  sigsusp       ksh
 83900  140428  72741      0  3        0x98  kqread        sshd-session
 72741   58935  75791      0  3        0x92  kqread        sshd-session
 16835  106736      1      0  3    0x100083  ttyopn        getty
 75791  461439      1      0  3        0x88  kqread        sshd
 78323   82799  93294     74  3   0x1100092  bpf           pflogd
 93294   43255      1      0  3        0x80  sbwait        pflogd
 12707  368690  16681     73  3   0x1100090  kqread        syslogd
 16681   40289      1      0  3    0x100082  sbwait        syslogd
 14437  195618      1      0  3    0x100080  kqread        resolvd
 96553  421995  38313     77  3    0x100092  kqread        dhcpleased
 42439  477996  38313     77  3    0x100092  kqread        dhcpleased
 38313  400475      1      0  3        0x80  kqread        dhcpleased
 36909   98876      0      0  3     0x14200  bored         smr
  7239  183761      0      0  2     0x14200                zerothread
 91598   87071      0      0  3     0x14200  aiodoned      aiodoned
 31300  182464      0      0  3     0x14200  syncer        update
 95966   93465      0      0  3     0x14200  cleaner       cleaner
 36838  124883      0      0  3     0x14200  reaper        reaper
 63731  351447      0      0  3     0x14200  pgdaemon      pagedaemon
  4520  211280      0      0  3     0x14200  bored         viomb
 91626    8541      0      0  3  0x40014200  acpi0         acpi0
 98244  467859      0      0  3  0x40014200                idle1
 27213  167950      0      0  3     0x14200  bored         softnet1
 80967  318638      0      0  3     0x14200  bored         softnet0
 27558  362064      0      0  3     0x14200  bored         systqmp
   574  272874      0      0  3     0x14200  bored         systq
 79523   68094      0      0  3     0x14200  tmoslp        softclockmp
 87204  244221      0      0  3  0x40014200  tmoslp        softclock
 91929  515175      0      0  3  0x40014200                idle0
     1  130636      0      0  3        0x82  wait          init
     0       0     -1      0  3     0x10200  scheduler     swapper
ddb{0}> show all locks
CPU 1:
exclusive mutex &uvm.fpageqlock r = 0 (0xffffffff838c61c0)
#0  witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0  witness_lock+0x5f1 sys/kern/subr_witness.c:1160
#1  mtx_enter+0x4b4 sys/kern/kern_lock.c:487
#2  uvm_pmr_freepages+0x1a8 sys/uvm/uvm_pmemrange.c:-1
#3  uvm_anfree+0xe9 sys/uvm/uvm_anon.c:112
#4  amap_wipeout+0x246 sys/uvm/uvm_amap.c:-1
#5  uvm_unmap_detach+0x8a sys/uvm/uvm_map.c:1353
#6  uvm_map_teardown+0x360 sys/uvm/uvm_map.c:2525
#7  exit1+0x6fc sys/kern/kern_exit.c:260
#8  sys_exit+0x1a sys/kern/kern_exit.c:-1
#9  syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#9  syscall+0xb17 sys/arch/amd64/amd64/trap.c:775
#10 Xsyscall+0x128
ddb{0}> show malloc
           Type InUse  MemUse  HighUse   Limit  Requests Type Lim
         devbuf 10219  11190K   11304K 166960K     11634        0
            pcb    17     12K      12K 166960K        44        0
         rtable   219      6K       7K 166960K       375        0
             pf    36     18K      18K 166960K        64        0
         ifaddr    41      7K       7K 166960K        55        0
        ifgroup    56      2K       2K 166960K        76        0
         sysctl     3      1K       9K 166960K         8        0
       counters    72     37K      37K 166960K        90        0
       ioctlops     0      0K       4K 166960K      1513        0
            iov     0      0K      16K 166960K        16        0
          mount     1      1K       1K 166960K         1        0
            log     0      0K       0K 166960K         4        0
         vnodes  1373     86K      86K 166960K      1565        0
      UFS quota     1     32K      32K 166960K         1        0
      UFS mount     5     36K      36K 166960K         5        0
            shm     2      1K       5K 166960K         6        0
         VM map     2      1K       1K 166960K         2        0
            sem     7      0K       0K 166960K         9        0
        dirhash    12      2K       2K 166960K        15        0
           ACPI  1692    195K     286K 166960K     12470        0
      file desc    16     57K      89K 166960K       316        0
          sigio     0      0K       0K 166960K         4        0
           proc    71    115K     180K 166960K       540        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        23        0
       in_multi    88      6K       7K 166960K       114        0
    ether_multi     1      0K       0K 166960K         4        0
            mrt     1      0K       0K 166960K         2        0
    ISOFS mount     1     32K      32K 166960K         1        0
  MSDOSFS mount     1     16K      16K 166960K         1        0
           ttys    91    413K     413K 166960K        91        0
           exec     0      0K       1K 166960K       406        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   247    171K     180K 166960K      4783        0
       UVM aobj    14      4K       4K 166960K        15        0
     pinsyscall    41     82K     102K 166960K      1478        0
        memdesc     1      4K       4K 166960K         1        0
    crypto data     1      1K       1K 166960K         1        0
    ip6_options     1      0K       0K 166960K        13        0
            NDP    12      0K       2K 166960K        34        0
           temp    43   8672K    8736K 166960K      5163        0
         kqueue    15     22K      30K 166960K        57        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       42    0       39     1     0     1     1     0     8    0
rtentry    176      119    0       19     6     0     6     6     0     8    0
unpcb      144      241    0      218     6     0     6     6     0     8    5
syncache   336        4    0        4     1     0     1     1     0     8    1
tcpcb      736       80    0       76     4     0     4     4     0     8    3
arp        136       20    0        3     1     0     1     1     0     8    0
inpcb      328      335    0      325     7     0     7     7     0     8    5
nd6        152       25    0        3     1     0     1     1     0     8    0
kcovpl      48        8    0        0     1     0     1     1     0     8    0
ppxss      1192       7    0        6     1     0     1     1     0     8    0
pppxif     1504       4    0        3     1     0     1     1     0     8    0
pffrag     232        2    0        0     1     0     1     1     0   482    0
pffrnode    88        2    0        0     1     0     1     1     0     8    0
pffrent     40        2    0        0     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       35    0        0     1     0     1     1     0     8    0
pfstkey    128       36    0        1     2     0     2     2     0     8    0
pfstate    448       36    0        1     4     0     4     4     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      481    0       63    30     0    30    30     0     8    3
art_table   40      482    0       63     5     0     5     5     0     8    0
art_node    32      119    0       29     1     0     1     1     0     8    0
sysvmsgpl   40        5    0        5     1     0     1     1     0     8    1
semapl     112        7    0        2     1     0     1     1     0     8    0
shmpl      112       11    0        1     1     0     1     1     0     8    0
dirhash    1024      19    0        2     3     0     3     3     0     8    0
dino2pl    256     1928    0      421    95     0    95    95     0     8    0
ffsino     296     1928    0      421   117     0   117   117     0     8    0
nchpl      144     2358    0      658    64     0    64    64     0     8    0
vnodes     216     2135    0        0   119     0   119   119     0     8    0
namei      1024    7424    0     7424     2     0     2     2     0     8    2
percpumem   16       60    0        9     1     0     1     1     0     8    0
vcpupl     3968       1    0        0     1     0     1     1     0     8    0
vmpool     848        1    0        0     1     0     1     1     0     8    0
kstatmem   264       38    0       12     3     0     3     3     0     8    1
scsiplug    72        2    0        2     1     0     1     1     0     8    1
scxspl     216     7783    0     7783    10     2     8     8     1     8    8
plimitpl   152       53    0       35     1     0     1     1     0     8    0
sigapl     424      635    0      588     7     0     7     7     0     8    1
knotepl    120      317    0        0    10     0    10    10     0     8    0
kqueuepl   224       86    0       74     2     0     2     2     0     8    1
pipepl     344      144    0      116     3     0     3     3     0     8    0
fdescpl    528      619    0      589     3     0     3     3     0     8    0
filepl     160     2910    0     2669    18     1    17    17     0     8    6
lockfpl    104      141    0      138     2     0     2     2     0     8    1
lockfspl    48       33    0       30     1     0     1     1     0     8    0
sessionpl  144       23    0       14     1     0     1     1     0     8    0
pgrppl      48       33    0       16     1     0     1     1     0     8    0
ucredpl    104      263    0      250     1     0     1     1     0     8    0
zombiepl   144      593    0      588     1     0     1     1     0     8    0
processpl  1232     635    0      588     5     0     5     5     0     8    0
procpl     664      951    0      901     6     0     6     6     0     8    1
sockpl     752      689    0      653    19     7    12    19     0     8    8
mcl64k     65536      3    0        0     1     0     1     1     0     8    0
mcl8k      8192       3    0        0     1     0     1     1     0     8    0
mcl4k      4096     137    0        0    18     0    18    18     0     8    0
mcl2k      2048      31    0        0     4     0     4     4     0     8    0
mtagpl      96        5    0        0     1     0     1     1     0     8    0
mbufpl     256      181    0        0    12     0    12    12     0     8    0
bufpl      280     2609    0      129   178     0   178   178     0     8    0
anonpl      32     7567    0        0    61     0    61    61     0   246    0
amapchunkpl 152   13918    0    13425    26     0    26    26     0   158    4
amappl16   200     1968    0     1941    18     3    15    15     0     8   12
amappl15   192        5    0        5     1     1     0     1     0     8    0
amappl14   184        6    0        6     1     1     0     1     0     8    0
amappl13   176      431    0      430     1     0     1     1     0     8    0
amappl12   168      989    0      947     3     0     3     3     0     8    0
amappl11   160        3    0        3     1     1     0     1     0     8    0
amappl10   152       50    0       36     1     0     1     1     0     8    0
amappl9    144      256    0      255     1     0     1     1     0     8    0
amappl8    136       25    0       23     1     0     1     1     0     8    0
amappl7    128       82    0       81     1     0     1     1     0     8    0
amappl6    120      291    0      278     1     0     1     1     0     8    0
amappl5    112       73    0       63     1     0     1     1     0     8    0
amappl4    104      445    0      416     1     0     1     1     0     8    0
amappl3     96     2510    0     2403     4     1     3     3     0     8    0
amappl2     88      557    0      494     2     0     2     2     0     8    0
amappl1     80    10267    0     9680    15     0    15    15     0     8    1
amappl      88     4004    0     3836     5     0     5     5     0    92    0
uvmvnodes   80      104    0        0     3     0     3     3     0     8    0
dma32768   32768      1    0        1     1     0     1     1     0     8    1
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      255    0      255     2     1     1     1     0     8    1
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       14    0        1     1     0     1     1     0     8    0
uaddrrnd    24      619    0      589     1     0     1     1     0     8    0
uaddrbest   32        2    0        0     1     0     1     1     0     8    0
uaddr       24      619    0      589     1     0     1     1     0     8    0
vmmpekpl   168     6919    0     6880     2     0     2     2     0     8    0
vmmpepl    168    46641    0    44767    97     0    97    97     0   357    5
vmsppl     488      618    0      588     5     0     5     5     0     8    1
rwobjpl     80    15746    0    14704    27     0    27    27     0     8    2
pdppl      4096    1248    0     1177   106    33    73    86     0     8    2
pvpl        32    15730    0        0   127     0   127   127     0   265    0
pmappl     256      619    0      588     3     0     3     3     0     8    0
extentpl    40       45    0       27     1     0     1     1     0     8    0
phpool     112      289    0       35     8     0     8     8     0     8    0
ddb{0}> machine ddbcpu 0
Invalid cpu 0
ddb{0}> trace
dt_ioctl_record_stop(ffff80000149e000) at dt_ioctl_record_stop+0x108 sys/dev/dt/dt_dev.c:593
dtclose(11e5f,81,2000,ffff8000fffee2b0) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline]
dtclose(11e5f,81,2000,ffff8000fffee2b0) at dtclose+0x109 sys/dev/dt/dt_dev.c:239
spec_close(ffff80003c3fdee0) at spec_close+0x466 sys/kern/spec_vnops.c:-1
VOP_CLOSE(fffffd806841b6c8,81,fffffd80097fd5b0,ffff8000fffee2b0) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156
vn_closefile(fffffd8066d0ec60,ffff8000fffee2b0) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline]
vn_closefile(fffffd8066d0ec60,ffff8000fffee2b0) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615
fdrop(fffffd8066d0ec60,ffff8000fffee2b0) at fdrop+0x121 sys/kern/kern_descrip.c:1280
closef(fffffd8066d0ec60,ffff8000fffee2b0) at closef+0x192 sys/kern/kern_descrip.c:1264
fdfree(ffff8000fffee2b0) at fdfree+0x116 sys/kern/kern_descrip.c:1195
exit1(ffff8000fffee2b0,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215
sys_exit(ffff8000fffee2b0,ffff80003c3fe250,ffff80003c3fe1a0) at sys_exit+0x1a sys/kern/kern_exit.c:-1
syscall(ffff80003c3fe250) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80003c3fe250) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x77350a693a50, count: -12
ddb{0}> machine ddbcpu 1
Stopped at      x86_ipi_db+0x27:        addq    $0x8,%rsp
x86_ipi_db(ffff8000299ddff0) 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(ffffffff8399cac0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline]
__mp_lock(ffffffff8399cac0) at __mp_lock+0x192 sys/kern/kern_lock.c:173
exit1(ffff8000fffe67e8,0,0,1) at exit1+0x701 sys/kern/kern_exit.c:260
sys_exit(ffff8000fffe67e8,ffff8000347cead0,ffff8000347cea20) at sys_exit+0x1a sys/kern/kern_exit.c:-1
syscall(ffff8000347cead0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff8000347cead0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x73c025851a00, count: 7
ddb{1}> trace
x86_ipi_db(ffff8000299ddff0) 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(ffffffff8399cac0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline]
__mp_lock(ffffffff8399cac0) at __mp_lock+0x192 sys/kern/kern_lock.c:173
exit1(ffff8000fffe67e8,0,0,1) at exit1+0x701 sys/kern/kern_exit.c:260
sys_exit(ffff8000fffe67e8,ffff8000347cead0,ffff8000347cea20) at sys_exit+0x1a sys/kern/kern_exit.c:-1
syscall(ffff8000347cead0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff8000347cead0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x73c025851a00, count: -8

Crashes (2792):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/12/21 12:25 openbsd 668f1f05e71c e14dbeb9 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: dt_ioctl_record_stop
2025/12/21 11:00 openbsd 668f1f05e71c e14dbeb9 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: dt_ioctl_record_stop
2025/12/21 09:53 openbsd 668f1f05e71c e14dbeb9 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: dt_ioctl_record_stop
2025/12/21 08:52 openbsd 668f1f05e71c e14dbeb9 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: dt_ioctl_record_stop
2025/12/21 07:07 openbsd 668f1f05e71c e14dbeb9 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main uvm_fault: dt_ioctl_record_stop
2025/12/21 06:29 openbsd 668f1f05e71c e14dbeb9 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main uvm_fault: dt_ioctl_record_stop
2025/12/21 05:09 openbsd 668f1f05e71c e14dbeb9 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: dt_ioctl_record_stop
2025/12/21 03:17 openbsd 668f1f05e71c e14dbeb9 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: dt_ioctl_record_stop
2025/12/21 01:34 openbsd df8f251ef5f9 e14dbeb9 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: dt_ioctl_record_stop
2025/12/21 00:32 openbsd df8f251ef5f9 e14dbeb9 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: dt_ioctl_record_stop
2025/12/20 21:29 openbsd df8f251ef5f9 e14dbeb9 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: dt_ioctl_record_stop
2025/12/20 19:57 openbsd df8f251ef5f9 e14dbeb9 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main uvm_fault: dt_ioctl_record_stop
2025/12/20 18:27 openbsd df8f251ef5f9 e14dbeb9 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: dt_ioctl_record_stop
2025/12/20 17:00 openbsd df8f251ef5f9 e14dbeb9 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main uvm_fault: dt_ioctl_record_stop
2025/12/20 16:22 openbsd df8f251ef5f9 e14dbeb9 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main uvm_fault: dt_ioctl_record_stop
2025/12/20 15:21 openbsd df8f251ef5f9 e14dbeb9 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main uvm_fault: dt_ioctl_record_stop
2025/12/20 12:19 openbsd ddef1afac53e e14dbeb9 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: dt_ioctl_record_stop
2025/12/20 11:07 openbsd ddef1afac53e e14dbeb9 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main uvm_fault: dt_ioctl_record_stop
2025/12/20 10:00 openbsd ddef1afac53e e14dbeb9 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main uvm_fault: dt_ioctl_record_stop
2025/12/20 08:54 openbsd ddef1afac53e e14dbeb9 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main uvm_fault: dt_ioctl_record_stop
2025/12/20 07:32 openbsd ddef1afac53e e14dbeb9 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: dt_ioctl_record_stop
2025/12/20 04:22 openbsd ddef1afac53e e14dbeb9 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main uvm_fault: dt_ioctl_record_stop
2025/12/20 04:04 openbsd ddef1afac53e e14dbeb9 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main uvm_fault: dt_ioctl_record_stop
2025/12/20 00:48 openbsd ddef1afac53e e14dbeb9 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main uvm_fault: dt_ioctl_record_stop
2025/12/19 23:25 openbsd d11ef3f2eb06 e14dbeb9 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main uvm_fault: dt_ioctl_record_stop
2025/12/19 22:22 openbsd d11ef3f2eb06 e14dbeb9 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: dt_ioctl_record_stop
2025/12/19 20:51 openbsd d11ef3f2eb06 e14dbeb9 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main uvm_fault: dt_ioctl_record_stop
2025/12/19 19:45 openbsd d11ef3f2eb06 e14dbeb9 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: dt_ioctl_record_stop
2025/12/19 17:14 openbsd d11ef3f2eb06 e14dbeb9 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: dt_ioctl_record_stop
2025/12/19 15:33 openbsd d11ef3f2eb06 e14dbeb9 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main uvm_fault: dt_ioctl_record_stop
2025/12/19 14:45 openbsd d11ef3f2eb06 e14dbeb9 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: dt_ioctl_record_stop
2025/12/19 13:19 openbsd d11ef3f2eb06 e14dbeb9 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: dt_ioctl_record_stop
2025/12/19 08:41 openbsd 3f23c8878a83 e14dbeb9 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: dt_ioctl_record_stop
2025/12/19 06:53 openbsd 3f23c8878a83 e14dbeb9 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: dt_ioctl_record_stop
2025/12/19 05:48 openbsd 3f23c8878a83 e14dbeb9 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main uvm_fault: dt_ioctl_record_stop
2025/12/19 04:19 openbsd 3f23c8878a83 e14dbeb9 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: dt_ioctl_record_stop
2025/12/19 03:08 openbsd 3f23c8878a83 e14dbeb9 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main uvm_fault: dt_ioctl_record_stop
2025/12/19 02:34 openbsd 3f23c8878a83 e14dbeb9 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main uvm_fault: dt_ioctl_record_stop
2025/12/19 00:44 openbsd 3f23c8878a83 e14dbeb9 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: dt_ioctl_record_stop
2025/12/18 22:43 openbsd 3f23c8878a83 e14dbeb9 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: dt_ioctl_record_stop
2025/12/18 20:27 openbsd 10e7775f0707 d6d0fdea .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: dt_ioctl_record_stop
2025/12/18 17:50 openbsd 10e7775f0707 d6d0fdea .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main uvm_fault: dt_ioctl_record_stop
2025/12/18 15:32 openbsd 10e7775f0707 d6d0fdea .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: dt_ioctl_record_stop
2025/08/01 00:50 openbsd 3b565b651350 3cda49cf .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: dt_ioctl_record_stop
* Struck through repros no longer work on HEAD.