syzbot


uvm_fault: proc_trampoline (2)

Status: upstream: reported on 2025/02/06 12:48
Reported-by: syzbot+6d88abc44e13bdeba3d5@syzkaller.appspotmail.com
First crash: 462d, last: 49m
Similar bugs (1)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
openbsd uvm_fault: proc_trampoline -1 6 595d 767d 0/3 auto-obsoleted due to no activity on 2024/12/25 08:30

Sample crash report:
uvm_fault(0xfffffd806c64e020, 0x98, 0, 1) -> e
fatal page fault in supervisor mode
trap type 6 code 0 rip ffffffff82587568 cs 8 rflags 10246 cr2 98 cpl 0 rsp ffff80002a38a220
gsbase 0xffff8000299adff0  kgsbase 0x0
panic: trap type 6, code=0, pc=ffffffff82587568
Starting stack trace...
panic(ffffffff83481399) at panic+0x1d0 sys/kern/subr_prf.c:229
kerntrap(ffff80002a38a170) at kerntrap+0x30b
alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b
dovutimens(ffff800039bba800,fffffd806bc112c8,ffff80002a38a330) at dovutimens+0x368 sys/kern/vfs_syscalls.c:2771
sys_futimens(ffff800039bba800,ffff80002a38a480,ffff80002a38a3d0) at sys_futimens+0xb3 sys/kern/vfs_syscalls.c:2847
syscall(ffff80002a38a480) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80002a38a480) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x9919f1d59e0, count: 250
End of stack trace.
W
ARNING: SPL NOT LOWERED ON TRAP EXIT 4 0
Stopped at      proc_trampoline+0xc7:   movl    $0,%gs:0x688
    TID    PID    UID     PRFLAGS     PFLAGS  CPU  COMMAND
*185506    441      0           0          0    1  syz-executor
 206150  76802      0         0x2          0    0  syz-executor
proc_trampoline() at proc_trampoline+0xc7
end of kernel
end trace frame: 0x766fd91cf4f0, count: 14
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}> set $lines = 0
ddb{1}> set $maxwidth = 0
ddb{1}> show panic
*cpu1: uvm_fault(0xfffffd806c64e020, 0x98, 0, 1) -> e
ddb{1}> trace
proc_trampoline() at proc_trampoline+0xc7
end of kernel
end trace frame: 0x766fd91cf4f0, count: -1
ddb{1}> show registers
rdi                                0
rsi                                0
rbp               0xffff8000333a7010
rbx                                0
rdx                                0
rcx               0xffff8000fffeed10
rax                             0x2a
r8                0xffff8000333a6f40
r9                               0x1
r10               0x5225c05eb331fc4c
r11               0x72e77babc9e28e6a
r12                                0
r13               0xffffffff82802f88    Xdoreti+0x18
r14                                0
r15                                0
rip               0xffffffff828624c7    proc_trampoline+0xc7
cs                               0x8
rflags                         0x246
rsp               0xffff8000333a6f90
ss                              0x10
proc_trampoline+0xc7:   movl    $0,%gs:0x688
ddb{1}> show proc
PROC (syz-executor) tid=185506 pid=441 tcnt=2 stat=onproc
    flags process=0 proc=0
    runpri=77, usrpri=77, slppri=32, nice=20
    wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0
    forw=0xffffffffffffffff, list=0xffff8000fffef4d8,0xffff80002f390d28
    process=0xffff80002a38f038 user=0xffff8000333a2000, vmspace=0xfffffd806c64e3f0
    estcpu=27, cpticks=5, pctcpu=0.0, user=4, sys=1, intr=0
ddb{1}> ps
   PID     TID   PPID    UID  S       FLAGS  WAIT          COMMAND
 24699   42436  58804      0  2           0                syz-executor
 24699  169187  58804      0  3   0x4000080  fsleep        syz-executor
 43594  190782  32269      0  2       0xc80                syz-executor
 43594   41088  32269      0  2   0x4000000                syz-executor
 43594   80838  32269      0  3   0x4000080  fsleep        syz-executor
 43594  419187  32269      0  3   0x4000080  fsleep        syz-executor
*  441  185506  69467      0  7           0                syz-executor
   441  364913  69467      0  2   0x4000000                syz-executor
 78198   47041  23720      0  2           0                syz-executor
 78198  423617  23720      0  3   0x4000000  sbar          syz-executor
 78198  455034  23720      0  3   0x4000080  fsleep        syz-executor
 53372   72748   6638      0  2         0x2                syz-executor
 27274  189080      0      0  3     0x14280  nfsidl        nfsio
 21004  300083      0      0  3     0x14280  nfsidl        nfsio
 40402  278194      0      0  3     0x14280  nfsidl        nfsio
 31950   59516      0      0  3     0x14280  nfsidl        nfsio
 92387  435532      0      0  3     0x14280  nfsidl        nfsio
 49141  108106      0      0  3     0x14280  nfsidl        nfsio
 46410  278319      0      0  3     0x14280  nfsidl        nfsio
  7999   80047      0      0  3     0x14280  nfsidl        nfsio
 41386  493109      0      0  3     0x14280  nfsidl        nfsio
 18613  281260      0      0  3     0x14280  nfsidl        nfsio
 47813  347006      0      0  3     0x14280  nfsidl        nfsio
 37124    3522      0      0  3     0x14280  nfsidl        nfsio
 12759  238702      0      0  3     0x14280  nfsidl        nfsio
  4947  334471      0      0  3     0x14280  nfsidl        nfsio
 82275   72300      0      0  3     0x14280  nfsidl        nfsio
 14629  198122      0      0  3     0x14280  nfsidl        nfsio
 55757  512966      0      0  3     0x14280  nfsidl        nfsio
 98384  179500      0      0  3     0x14280  nfsidl        nfsio
 13171  177703      0      0  3     0x14280  nfsidl        nfsio
 24939  115709      0      0  3     0x14280  nfsidl        nfsio
 79364  256916   6638      0  2         0x2                syz-executor
 58804  272288   6638      0  2         0x2                syz-executor
 32269  463929   6638      0  2       0xc82                syz-executor
 69467  442336   6638      0  2       0xc82                syz-executor
 11644  414545   6638      0  2         0x2                syz-executor
 23720  216109   6638      0  2       0xc82                syz-executor
 76802  206150   6638      0  7         0x2                syz-executor
  6638  125330  91373      0  3        0x82  kqread        syz-executor
 91373   94067   6361      0  3    0x10008a  sigsusp       ksh
  6361  100338  97916      0  3        0x98  kqread        sshd-session
 97916  321824  11798      0  3        0x92  kqread        sshd-session
 88799  188721      1      0  2    0x100083                getty
 11798  208398      1      0  3        0x88  kqread        sshd
 61113   58779  40389     74  3   0x1100092  bpf           pflogd
 40389  149917      1      0  3        0x80  sbwait        pflogd
 34873   55778  42051     73  3   0x1100090  kqread        syslogd
 42051  496532      1      0  3    0x100082  sbwait        syslogd
 92049   68112      1      0  3    0x100080  kqread        resolvd
 26222  366401  15713     77  3    0x100092  kqread        dhcpleased
 92247  453934  15713     77  3    0x100092  kqread        dhcpleased
 15713   58411      1      0  3        0x80  kqread        dhcpleased
 49884  132451      0      0  3     0x14200  bored         smr
 20582  467099      0      0  2     0x14200                zerothread
 69196  242841      0      0  3     0x14200  aiodoned      aiodoned
 58200  191492      0      0  3     0x14200  syncer        update
 49770  135120      0      0  3     0x14200  cleaner       cleaner
 21570  448341      0      0  3     0x14200  reaper        reaper
 62494  463114      0      0  3     0x14200  pgdaemon      pagedaemon
  8243  171430      0      0  3     0x14200  bored         viomb
 99336   44222      0      0  3  0x40014200  acpi0         acpi0
 66152  314774      0      0  3  0x40014200                idle1
 82914  442654      0      0  3     0x14200  bored         softnet1
 36254   34585      0      0  2     0x14200                softnet0
 89487    2465      0      0  2     0x14200                systqmp
 91848  288509      0      0  3     0x14200  bored         systq
 91430  249765      0      0  3     0x14200  tmoslp        softclockmp
 59125  284260      0      0  3  0x40014200  tmoslp        softclock
 71806   21387      0      0  3  0x40014200                idle0
     1  355796      0      0  3        0x82  wait          init
     0       0     -1      0  3     0x10200  scheduler     swapper
ddb{1}> show all locks
Process 78198 (syz-executor) thread 0xffff800039bba800 (423617)
exclusive kernel_lock &kernel_lock r = 0 (0xffffffff83a38200)
#0  witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0  witness_lock+0x5f1 sys/kern/subr_witness.c:1160
#1  syscall+0xaf4 mi_syscall sys/sys/syscall_mi.h:175 [inline]
#1  syscall+0xaf4 sys/arch/amd64/amd64/trap.c:783
#2  Xsyscall+0x128
Process 79364 (syz-executor) thread 0xffff8000fffef240 (256916)
exclusive rrwlock inode r = 0 (0xfffffd806c15dc60)
#0  witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0  witness_lock+0x5f1 sys/kern/subr_witness.c:1160
#1  rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320
#2  rrw_enter+0xc6 sys/kern/kern_rwlock.c:621
#3  VOP_LOCK+0xbd sys/kern/vfs_vops.c:527
#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:1232
#6  ffs_inode_alloc+0x279 sys/ufs/ffs/ffs_alloc.c:393
#7  ufs_mkdir+0xfc sys/ufs/ufs/ufs_vnops.c:1112
#8  VOP_MKDIR+0x101 sys/kern/vfs_vops.c:394
#9  domkdirat+0x179 sys/kern/vfs_syscalls.c:3143
#10 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#10 syscall+0xb17 sys/arch/amd64/amd64/trap.c:783
#11 Xsyscall+0x128
exclusive rrwlock inode r = 0 (0xfffffd806ca839f8)
#0  witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0  witness_lock+0x5f1 sys/kern/subr_witness.c:1160
#1  rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320
#2  rrw_enter+0xc6 sys/kern/kern_rwlock.c:621
#3  VOP_LOCK+0xbd sys/kern/vfs_vops.c:527
#4  vn_lock+0xa4 sys/kern/vfs_vnops.c:576
#5  vfs_lookup+0x11c sys/kern/vfs_lookup.c:-1
#6  namei+0x7ca sys/kern/vfs_lookup.c:250
#7  domkdirat+0x8b sys/kern/vfs_syscalls.c:3128
#8  syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#8  syscall+0xb17 sys/arch/amd64/amd64/trap.c:783
#9  Xsyscall+0x128
Process 76802 (syz-executor) thread 0xffff8000ffffd230 (206150)
exclusive rrwlock inode r = 0 (0xfffffd806c15dd88)
#0  witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0  witness_lock+0x5f1 sys/kern/subr_witness.c:1160
#1  rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320
#2  rrw_enter+0xc6 sys/kern/kern_rwlock.c:621
#3  VOP_LOCK+0xbd sys/kern/vfs_vops.c:527
#4  vn_lock+0xa4 sys/kern/vfs_vnops.c:576
#5  vget+0x2a2 sys/kern/vfs_subr.c:686
#6  ufs_ihashget+0x185 sys/ufs/ufs/ufs_ihash.c:98
#7  ffs_vget+0x8c sys/ufs/ffs/ffs_vfsops.c:1203
#8  ufs_lookup+0x1a36 sys/ufs/ufs/ufs_lookup.c:478
#9  VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85
#10 vfs_lookup+0x98a sys/kern/vfs_lookup.c:567
#11 namei+0x7ca sys/kern/vfs_lookup.c:250
#12 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1887
#13 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#13 syscall+0xb17 sys/arch/amd64/amd64/trap.c:783
#14 Xsyscall+0x128
exclusive rrwlock inode r = 0 (0xfffffd806d508550)
#0  witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0  witness_lock+0x5f1 sys/kern/subr_witness.c:1160
#1  rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320
#2  rrw_enter+0xc6 sys/kern/kern_rwlock.c:621
#3  VOP_LOCK+0xbd sys/kern/vfs_vops.c:527
#4  vn_lock+0xa4 sys/kern/vfs_vnops.c:576
#5  vfs_lookup+0x11c sys/kern/vfs_lookup.c:-1
#6  namei+0x7ca sys/kern/vfs_lookup.c:250
#7  dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1887
#8  syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#8  syscall+0xb17 sys/arch/amd64/amd64/trap.c:783
#9  Xsyscall+0x128
ddb{1}> show malloc
           Type InUse  MemUse  HighUse   Limit  Requests Type Lim
         devbuf 11085  12095K   12418K 166960K     12517        0
            pcb    17     12K      12K 166960K        63        0
         rtable   219      6K       8K 166960K       506        0
             pf    34     17K      21K 166960K        92        0
         ifaddr    39      6K       8K 166960K        75        0
        ifgroup    51      2K       2K 166960K       105        0
         sysctl     4      1K       9K 166960K        10        0
       counters    68     36K      37K 166960K       102        0
       ioctlops     0      0K       6K 166960K      1631        0
            iov     0      0K      17K 166960K        15        0
          mount     1      1K       1K 166960K         1        0
            log     0      0K       0K 166960K         4        0
         vnodes  1389     87K      88K 166960K      1766        0
      UFS quota     1     32K      32K 166960K         1        0
      UFS mount     5     36K      36K 166960K         5        0
            shm     2     20K      24K 166960K         9        0
         VM map     2      1K       1K 166960K         2        0
            sem    12      0K       0K 166960K        23        0
        dirhash    12      2K       2K 166960K        15        0
           ACPI  1692    195K     286K 166960K     12470        0
      file desc    14     49K      93K 166960K       481        0
          sigio     0      0K       0K 166960K         3        0
           proc    72    115K     164K 166960K       686        0
        subproc    67      4K       4K 166960K       112        0
    NFS srvsock     1      0K       0K 166960K         1        0
     NFS daemon     1     16K      16K 166960K         1        0
    ip_moptions     0      0K       0K 166960K        24        0
       in_multi    88      6K       7K 166960K       160        0
    ether_multi     1      0K       0K 166960K         2        0
            mrt     2      0K       0K 166960K        16        0
    ISOFS mount     1     32K      32K 166960K         1        0
  MSDOSFS mount     1     16K      16K 166960K         1        0
           ttys   223    996K     996K 166960K       223        0
           exec     0      0K       1K 166960K       469        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   208    158K     177K 166960K      6046        0
       UVM aobj     8      2K       2K 166960K        10        0
     pinsyscall    39     78K     104K 166960K      1762        0
        memdesc     1      4K       4K 166960K         1        0
    crypto data     1      1K       1K 166960K         1        0
    ip6_options     0      0K       0K 166960K         6        0
            NDP    11      0K       2K 166960K        48        0
           temp    54   9078K    9154K 166960K     26110        0
         kqueue    13     20K      26K 166960K        79        0
      SYN cache     2     16K      16K 166960K         2        0
ddb{1}> 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       63    0       59     1     0     1     1     0     8    0
rtentry    176      166    0       67     6     1     5     6     0     8    0
unpcb      144      304    0      285     4     3     1     4     0     8    0
syncache   336        9    0        9     1     1     0     1     0     8    0
tcpcb      736       74    0       70     2     1     1     2     0     8    0
arp        136       27    0       11     1     0     1     1     0     8    0
inpcb      328      263    0      254     2     1     1     2     0     8    0
nd6        152       39    0       18     2     1     1     2     0     8    0
pkpcb       40        4    0        4     1     1     0     1     0     8    0
kcovpl      48       12    0        5     1     0     1     1     0     8    0
ppxss      1192       6    0        6     1     1     0     1     0     8    0
pppxif     1576       3    0        3     1     1     0     1     0     8    0
pfstscr     40        1    0        1     1     1     0     1     0     8    0
pffrag     232        3    0        1     2     1     1     1     0   482    0
pffrnode    88        3    0        1     2     1     1     1     0     8    0
pffrent     40        4    0        2     2     1     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
pfsrclim   320        1    0        1     1     1     0     1     0     8    0
pftag       88        1    0        0     1     0     1     1     0     8    0
pfstitem    24       51    0        0     1     0     1     1     0     8    0
pfstkey    128       55    0        4     2     0     2     2     0     8    0
pfstate    448       51    0        2     6     0     6     6     0     8    0
pfrule     1360      29    0       24     2     1     1     2     0     8    0
art_heap8  4096       1    0        0     1     0     1     1     0     8    0
art_heap4  256      687    0      276    31     3    28    31     0     8    0
art_table   40      688    0      276     5     0     5     5     0     8    0
art_node    32      165    0       75     1     0     1     1     0     8    0
sysvmsgpl   40       14    0        3     1     0     1     1     0     8    0
semupl     112        2    0        2     1     1     0     1     0     8    0
semapl     112       20    0       10     1     0     1     1     0     8    0
shmpl      112        7    0        2     1     0     1     1     0     8    0
dirhash    1024      19    0        2     3     0     3     3     0     8    0
dino2pl    256     2142    0      663    93     0    93    93     0     8    0
ffsino     296     2142    0      663   115     0   115   115     0     8    0
nchpl      144     2741    0     1030    64     0    64    64     0     8    0
rtmask      32        1    0        1     1     1     0     1     0     8    0
vnodes     216     2499    0        0   139     0   139   139     0     8    0
namei      1024    9363    0     9362     3     2     1     2     0     8    0
percpumem   16       66    0       17     1     0     1     1     0     8    0
kstatmem   264       51    0       26     3     1     2     3     0     8    0
scsiplug    72        1    0        1     1     1     0     1     0     8    0
scxspl     216     9353    0     9353    10     9     1     8     1     8    1
plimitpl   152      126    0      109     1     0     1     1     0     8    0
sigapl     424      811    0      747     8     0     8     8     0     8    0
knotepl    120      522    0        0    16     0    16    16     0     8    0
kqueuepl   224       99    0       90     1     0     1     1     0     8    0
pipepl     344      161    0      134     3     0     3     3     0     8    0
fdescpl    528      775    0      747     3     0     3     3     0     8    0
filepl     160     3750    0     3536    13     3    10    13     0     8    0
lockfpl    104       97    0       95     1     0     1     1     0     8    0
lockfspl    48       42    0       40     1     0     1     1     0     8    0
sessionpl  144       36    0       27     1     0     1     1     0     8    0
pgrppl      48       50    0       33     1     0     1     1     0     8    0
ucredpl    104      673    0      660     1     0     1     1     0     8    0
zombiepl   144      747    0      747     2     1     1     1     0     8    1
processpl  1232     811    0      747     6     0     6     6     0     8    0
procpl     664     1315    0     1244     8     1     7     8     0     8    0
sosppl     176        1    0        1     1     1     0     1     0     8    0
sockpl     752      643    0      611    12     8     4    12     0     8    0
mcl64k     65536      4    0        0     1     0     1     1     0     8    0
mcl12k     12288      1    0        0     1     0     1     1     0     8    0
mcl8k      8192       2    0        0     1     0     1     1     0     8    0
mcl4k      4096     119    0        0    15     0    15    15     0     8    0
mcl2k      2048      19    0        0     3     0     3     3     0     8    0
mtagpl      96        4    0        0     1     0     1     1     0     8    0
mbufpl     256      173    0        0    11     0    11    11     0     8    0
bufpl      280     3112    0      111   215     0   215   215     0     8    0
anonpl      32     7675    0        0    62     0    62    62     0   246    0
amapchunkpl 152   19648    0    19242    36    18    18    36     0   158    0
amappl16   200     2288    0     2261     5     2     3     5     0     8    0
amappl15   192        2    0        2     1     1     0     1     0     8    0
amappl14   184      481    0      479     1     0     1     1     0     8    0
amappl13   176      140    0      128     1     0     1     1     0     8    0
amappl12   168     1046    0     1019     2     0     2     2     0     8    0
amappl11   160       20    0       20     1     1     0     1     0     8    0
amappl10   152       83    0       69     1     0     1     1     0     8    0
amappl9    144      280    0      280     1     1     0     1     0     8    0
amappl8    136      117    0      114     1     0     1     1     0     8    0
amappl7    128      179    0      166     1     0     1     1     0     8    0
amappl6    120      200    0      198     1     0     1     1     0     8    0
amappl5    112      112    0      100     1     0     1     1     0     8    0
amappl4    104      329    0      307     1     0     1     1     0     8    0
amappl3     96     3579    0     3484     4     1     3     4     0     8    0
amappl2     88      616    0      551     2     0     2     2     0     8    0
amappl1     80    13075    0    12485    17     3    14    17     0     8    0
amappl      88     5154    0     5016     5     1     4     5     0    92    0
uvmvnodes   80      113    0        0     3     0     3     3     0     8    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        9    0        2     1     0     1     1     0     8    0
uaddrrnd    24      775    0      747     1     0     1     1     0     8    0
uaddrbest   32        2    0        0     1     0     1     1     0     8    0
uaddr       24      775    0      747     1     0     1     1     0     8    0
vmmpekpl   168     8655    0     8606     3     0     3     3     0     8    0
vmmpepl    168    59526    0    57772    98    12    86    98     0   357    0
vmsppl     488      774    0      747     5     1     4     5     0     8    0
rwobjpl     80    19845    0    18818    26     2    24    26     0     8    0
pdppl      4096    1557    0     1494   117    50    67    87     0     8    4
pvpl        32    16824    0        0   137     1   136   137     0   265    0
pmappl     256      774    0      747     3     1     2     3     0     8    0
extentpl    40       45    0       27     1     0     1     1     0     8    0
phpool     112      296    0       61     8     0     8     8     0     8    0
ddb{1}> machine ddbcpu 0
Stopped at      x86_ipi_db+0x27:        addq    $0x8,%rsp
x86_ipi_db(ffffffff8388eff0) 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(ffffffff83a37a00) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline]
__mp_lock(ffffffff83a37a00) at __mp_lock+0x192 sys/kern/kern_lock.c:173
softintr_dispatch(0) at softintr_dispatch+0x125 sys/kern/kern_softintr.c:83
dosoftint(0) at dosoftint+0x54 sys/arch/amd64/amd64/intr.c:862
Xsoftclock() at Xsoftclock+0x27
__mp_lock(ffffffff83a37a00) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline]
__mp_lock(ffffffff83a37a00) at __mp_lock+0x192 sys/kern/kern_lock.c:173
__mp_acquire_count(ffffffff83a37a00,1) at __mp_acquire_count+0x58 sys/kern/kern_lock.c:-1
sleep_finish(ffffffffffffffff,1) at sleep_finish+0x2d8 sys/kern/kern_synch.c:369
biowait(fffffd806fe385a8) at biowait+0xc6 sys/kern/vfs_bio.c:1242
bwrite(fffffd806fe385a8) at bwrite+0x2e7 sys/kern/vfs_bio.c:754
ffs_update(fffffd806c15dce8,1) at ffs_update+0x2fe sys/ufs/ffs/ffs_inode.c:111
ffs_truncate(fffffd806c15dce8,0,4,fffffd80097fd548) at ffs_truncate+0xc9b sys/ufs/ffs/ffs_inode.c:-1
end trace frame: 0xffff80002a2b8350, count: 0
ddb{0}> trace
x86_ipi_db(ffffffff8388eff0) 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(ffffffff83a37a00) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline]
__mp_lock(ffffffff83a37a00) at __mp_lock+0x192 sys/kern/kern_lock.c:173
softintr_dispatch(0) at softintr_dispatch+0x125 sys/kern/kern_softintr.c:83
dosoftint(0) at dosoftint+0x54 sys/arch/amd64/amd64/intr.c:862
Xsoftclock() at Xsoftclock+0x27
__mp_lock(ffffffff83a37a00) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline]
__mp_lock(ffffffff83a37a00) at __mp_lock+0x192 sys/kern/kern_lock.c:173
__mp_acquire_count(ffffffff83a37a00,1) at __mp_acquire_count+0x58 sys/kern/kern_lock.c:-1
sleep_finish(ffffffffffffffff,1) at sleep_finish+0x2d8 sys/kern/kern_synch.c:369
biowait(fffffd806fe385a8) at biowait+0xc6 sys/kern/vfs_bio.c:1242
bwrite(fffffd806fe385a8) at bwrite+0x2e7 sys/kern/vfs_bio.c:754
ffs_update(fffffd806c15dce8,1) at ffs_update+0x2fe sys/ufs/ffs/ffs_inode.c:111
ffs_truncate(fffffd806c15dce8,0,4,fffffd80097fd548) at ffs_truncate+0xc9b sys/ufs/ffs/ffs_inode.c:-1
ufs_rmdir(ffff80002a2b8360) at ufs_rmdir+0x2f1 sys/ufs/ufs/ufs_vnops.c:1265
VOP_RMDIR(fffffd807063e398,fffffd806409d980,ffff80002a2b8438) at VOP_RMDIR+0x192 sys/kern/vfs_vops.c:413
dounlinkat(ffff8000ffffd230,ffffff9c,72d2b30c3940,8) at dounlinkat+0x2e0 sys/kern/vfs_syscalls.c:1920
syscall(ffff80002a2b85b0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80002a2b85b0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x72d2b30c3930, count: -19
ddb{0}> machine ddbcpu 1
Stopped at      proc_trampoline+0xc7:   movl    $0,%gs:0x688
proc_trampoline() at proc_trampoline+0xc7
end of kernel
end trace frame: 0x766fd91cf4f0, count: 14
ddb{1}> trace
proc_trampoline() at proc_trampoline+0xc7
end of kernel
end trace frame: 0x766fd91cf4f0, count: -1

Crashes (1425):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/05/14 21:37 openbsd 9f6962b18ef0 340bcdf0 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: proc_trampoline
2026/05/14 20:08 openbsd 9f6962b18ef0 340bcdf0 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: proc_trampoline
2026/05/14 14:42 openbsd 86898828a45d 340bcdf0 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: proc_trampoline
2026/05/14 13:41 openbsd 86898828a45d 340bcdf0 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: proc_trampoline
2026/05/14 11:00 openbsd 86898828a45d 340bcdf0 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: proc_trampoline
2026/05/14 09:22 openbsd 86898828a45d 340bcdf0 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: proc_trampoline
2026/05/14 06:51 openbsd 86898828a45d 340bcdf0 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: proc_trampoline
2026/05/14 04:17 openbsd ed5454cb43ec 340bcdf0 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: proc_trampoline
2026/05/14 01:37 openbsd ed5454cb43ec 340bcdf0 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: proc_trampoline
2026/05/13 23:59 openbsd ed5454cb43ec 340bcdf0 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: proc_trampoline
2026/05/13 22:39 openbsd ed5454cb43ec 340bcdf0 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: proc_trampoline
2026/05/13 20:12 openbsd ed5454cb43ec 340bcdf0 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: proc_trampoline
2026/05/13 18:04 openbsd ed5454cb43ec 340bcdf0 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: proc_trampoline
2026/05/13 15:00 openbsd 104c674285fe 340bcdf0 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: proc_trampoline
2026/05/13 13:56 openbsd 104c674285fe 340bcdf0 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: proc_trampoline
2026/05/13 12:47 openbsd 104c674285fe 340bcdf0 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: proc_trampoline
2026/05/13 11:20 openbsd 104c674285fe 340bcdf0 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: proc_trampoline
2026/05/13 08:17 openbsd 104c674285fe 340bcdf0 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: proc_trampoline
2026/05/13 06:13 openbsd 104c674285fe 340bcdf0 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: proc_trampoline
2026/05/13 04:42 openbsd 104c674285fe 340bcdf0 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: proc_trampoline
2026/05/13 02:00 openbsd 5e6d4834f229 340bcdf0 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: proc_trampoline
2026/05/13 00:47 openbsd 5e6d4834f229 340bcdf0 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: proc_trampoline
2026/05/12 22:53 openbsd 5e6d4834f229 340bcdf0 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: proc_trampoline
2026/05/12 21:22 openbsd 5e6d4834f229 340bcdf0 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: proc_trampoline
2026/05/12 20:14 openbsd 5e6d4834f229 340bcdf0 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: proc_trampoline
2026/05/12 18:05 openbsd 5e6d4834f229 340bcdf0 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: proc_trampoline
2026/05/12 17:03 openbsd 5e6d4834f229 340bcdf0 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: proc_trampoline
2026/05/12 15:00 openbsd 5e6d4834f229 340bcdf0 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: proc_trampoline
2026/05/12 13:38 openbsd 369ac04692fe 340bcdf0 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: proc_trampoline
2026/05/12 12:22 openbsd 369ac04692fe 340bcdf0 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: proc_trampoline
2026/05/12 10:57 openbsd 369ac04692fe 340bcdf0 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: proc_trampoline
2026/05/12 09:42 openbsd 369ac04692fe 340bcdf0 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: proc_trampoline
2026/05/12 07:18 openbsd 369ac04692fe 340bcdf0 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: proc_trampoline
2026/05/12 04:44 openbsd 369ac04692fe 340bcdf0 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: proc_trampoline
2026/05/12 03:26 openbsd 369ac04692fe 340bcdf0 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: proc_trampoline
2026/05/11 20:55 openbsd 9c5367037e8c 340bcdf0 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: proc_trampoline
2026/05/11 19:43 openbsd 9c5367037e8c 340bcdf0 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: proc_trampoline
2026/05/11 18:39 openbsd 9c5367037e8c 340bcdf0 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: proc_trampoline
2026/05/11 17:54 openbsd 9c5367037e8c 340bcdf0 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: proc_trampoline
2026/05/11 16:45 openbsd 9c5367037e8c 340bcdf0 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: proc_trampoline
2026/05/11 14:27 openbsd 9c5367037e8c 340bcdf0 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: proc_trampoline
2026/05/11 13:21 openbsd 9c5367037e8c 340bcdf0 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: proc_trampoline
2026/05/11 12:20 openbsd 9c5367037e8c 340bcdf0 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: proc_trampoline
2026/05/11 08:25 openbsd bf258236f7c1 340bcdf0 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: proc_trampoline
2026/05/11 07:10 openbsd bf258236f7c1 340bcdf0 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: proc_trampoline
2025/12/21 11:01 openbsd 668f1f05e71c e14dbeb9 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-setuid uvm_fault: proc_trampoline
2025/02/06 12:47 openbsd 4a7e1005694f 1e1faf27 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: proc_trampoline
* Struck through repros no longer work on HEAD.