syzbot


uvm_fault: x86_ipi_db (9)

Status: upstream: reported on 2025/02/14 23:55
Reported-by: syzbot+a157c6e0d81b4f6b71a4@syzkaller.appspotmail.com
First crash: 489d, last: 17m
Similar bugs (8)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
openbsd uvm_fault: x86_ipi_db (3) -1 4 1941d 1958d 0/3 auto-closed as invalid on 2021/05/25 04:20
openbsd uvm_fault: x86_ipi_db (6) -1 1 1757d 1757d 0/3 closed as invalid on 2021/08/26 17:38
openbsd uvm_fault: x86_ipi_db (2) -1 1 1991d 1991d 0/3 closed as invalid on 2021/01/29 06:54
openbsd uvm_fault: x86_ipi_db (8) -1 330 596d 1581d 0/3 auto-obsoleted due to no activity on 2024/12/19 15:21
openbsd uvm_fault: x86_ipi_db (5) -1 1 1762d 1762d 0/3 closed as invalid on 2021/08/23 05:23
openbsd uvm_fault: x86_ipi_db (7) -1 4 1632d 1632d 3/3 fixed on 2021/12/30 22:14
openbsd uvm_fault: x86_ipi_db -1 1 1994d 1994d 0/3 closed as invalid on 2021/01/03 08:45
openbsd uvm_fault: x86_ipi_db (4) -1 1 1776d 1776d 0/3 closed as invalid on 2021/08/08 05:33

Sample crash report:
*cpu0: uvm_fault(0xfffff3006c6a6b88, 0x98, 0, 1) -> e
ddb{1}> trace
savectx() at savectx+0xae
end of kernel
end trace frame: 0x79a995b81c90, count: -1
ddb{1}> show registers
rdi                                0
rsi                                0
rbp               0xffff80002eb84c90
rbx                                0
rdx                                0
rcx               0xffff8000fffe9ca8
rax                             0x3b
r8                0xffff80002eb84bc0
r9                                 0
r10               0x73ab463dac2e2fcc
r11               0x5bd7c6ede308b347
r12                                0
r13                                0
r14               0xffff8000fffe9ca8
r15                                0
rip               0xffffffff81f903ee    savectx+0xae
cs                               0x8
rflags                          0x46
rsp               0xffff80002eb84c10
ss                              0x10
savectx+0xae:   movl    $0,%gs:0x688
ddb{1}> show proc
PROC (syz-executor) tid=285201 pid=22917 tcnt=2 stat=onproc
    flags process=0 proc=0
    runpri=50, usrpri=50, slppri=17, nice=20
    wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0
    forw=0xffffffffffffffff, list=0xffff800034f99cb0,0xffff8000fffe8fc0
    process=0xffff8000fffef038 user=0xffff80002eb7f000, vmspace=0xfffff3006c6a65d0
    estcpu=36, cpticks=3, pctcpu=0.0, user=0, sys=3, intr=0
ddb{1}> ps
   PID     TID   PPID    UID  S       FLAGS  WAIT          COMMAND
*22917  285201  37382      0  7           0                syz-executor
 22917  395645  37382      0  3   0x4000080  fsleep        syz-executor
 45949  150520  23566      0  2           0                syz-executor
 45949  276835  23566      0  7   0x4000000                syz-executor
 86959  279865  98849      0  2           0                syz-executor
 86959  436108  98849      0  3   0x4000080  lockf         syz-executor
 86959  426334  98849      0  3   0x4000080  lockf         syz-executor
 72182  216023  88777      0  2           0                syz-executor
 72182  228811  88777      0  3   0x4000080  sbwait        syz-executor
 72182    6301  88777      0  3   0x4000000  sbufrcv       syz-executor
 67543  215168  63793      0  2           0                syz-executor
 67543  318571  63793      0  3   0x4000080  fsleep        syz-executor
 73789  366776  32931      0  2           0                syz-executor
 73789  148581  32931      0  3   0x4000080  fsleep        syz-executor
 73789  427891  32931      0  3   0x4000080  fsleep        syz-executor
 73789  357106  32931      0  3   0x4000080  fsleep        syz-executor
 72499  411744  38000      0  3        0x80  nanoslp       syz-executor
 72499  429541  38000      0  3   0x4000080  sbwait        syz-executor
 72499  414126  38000      0  3   0x4000080  sbwait        syz-executor
 72499   85653  38000      0  3   0x4000080  fsleep        syz-executor
 98849  423439  92883      0  3        0x82  nanoslp       syz-executor
 37382  125959  92883      0  2       0xc82                syz-executor
 84147  252261  92883      0  2         0x2                syz-executor
 88777  258672  92883      0  3        0x82  nanoslp       syz-executor
 32931  300937  92883      0  3        0x82  nanoslp       syz-executor
 38000   36289  92883      0  3        0x82  nanoslp       syz-executor
 23566  292564  92883      0  2       0xc82                syz-executor
 63793   20963  92883      0  3        0x82  nanoslp       syz-executor
 92883   11618  87114      0  3        0x82  kqread        syz-executor
 87114  241052  13431      0  3    0x10008a  sigsusp       ksh
 13431  480787  27860      0  3        0x98  kqread        sshd-session
 27860   72250  58028      0  3        0x92  kqread        sshd-session
  7417  273533      1      0  3    0x100083  ttyin         getty
 58028  452085      1      0  3        0x88  kqread        sshd
 85816  218846  57595     74  3   0x1100092  bpf           pflogd
 57595   61564      1      0  3        0x80  sbwait        pflogd
 42075  369493  30933     73  3   0x1100090  kqread        syslogd
 30933  150776      1      0  3    0x100082  sbwait        syslogd
 35614  256044      1      0  3    0x100080  kqread        resolvd
 66208  231396  49289     77  3    0x100092  kqread        dhcpleased
  1753  282900  49289     77  3    0x100092  kqread        dhcpleased
 49289  491460      1      0  3        0x80  kqread        dhcpleased
 46295  400381      0      0  3     0x14200  bored         smr
 59060  255816      0      0  2     0x14200                zerothread
 74655  202609      0      0  3     0x14200  aiodoned      aiodoned
 56258  262378      0      0  3     0x14200  syncer        update
 20109   82031      0      0  3     0x14200  cleaner       cleaner
 20131  375928      0      0  3     0x14200  reaper        reaper
 60252  496719      0      0  3     0x14200  pgdaemon      pagedaemon
 22943  127469      0      0  3     0x14200  bored         viomb
 98864   59714      0      0  3  0x40014200  acpi0         acpi0
 56710  170290      0      0  3  0x40014200                idle1
  4058  230134      0      0  3     0x14200  bored         softnet1
 14917  431736      0      0  3     0x14200  bored         softnet0
  8784  277078      0      0  3     0x14200  bored         systqmp
 60166   40133      0      0  3     0x14200  bored         systq
 73015   33560      0      0  3     0x14200  tmoslp        softclockmp
 35446  334244      0      0  3  0x40014200  tmoslp        softclock
 47106  399599      0      0  3  0x40014200                idle0
     1  326797      0      0  3        0x82  wait          init
     0       0     -1      0  3     0x10200  scheduler     swapper
ddb{1}> show all locks
CPU 1:
exclusive mutex &pmap->pm_mtx r = 0 (0xfffff3006c4acf10)
#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  pmap_write_protect+0x80 rcr3 sys/arch/amd64/compile/SYZKALLER/obj/machine/cpufunc.h:139 [inline]
#2  pmap_write_protect+0x80 pmap_map_ptes sys/arch/amd64/amd64/pmap.c:441 [inline]
#2  pmap_write_protect+0x80 sys/arch/amd64/amd64/pmap.c:2173
#3  uvm_map_protect+0xb95 pmap_protect sys/arch/amd64/compile/SYZKALLER/obj/machine/pmap.h:481 [inline]
#3  uvm_map_protect+0xb95 sys/uvm/uvm_map.c:3202
#4  sys_mprotect+0x351 sys/uvm/uvm_mmap.c:590
#5  syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#5  syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783
#6  Xsyscall+0x128
Process 22917 (syz-executor) thread 0xffff8000fffe9ca8 (285201)
exclusive rwlock uobjlk r = 0 (0xfffff3006c5f5610)
#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  uvm_map_protect+0xb36 sys/uvm/uvm_map.c:3202
#3  sys_mprotect+0x351 sys/uvm/uvm_mmap.c:590
#4  syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#4  syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783
#5  Xsyscall+0x128
exclusive rwlock vmmaplk r = 0 (0xfffff3006c6a66d0)
#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  vm_map_lock_ln+0x12e sys/uvm/uvm_map.c:5171
#3  uvm_map_protect+0xe0 sys/uvm/uvm_map.c:3075
#4  sys_mprotect+0x351 sys/uvm/uvm_mmap.c:590
#5  syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#5  syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783
#6  Xsyscall+0x128
exclusive mutex &pmap->pm_mtx r = 0 (0xfffff3006c4acf10)
#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  pmap_write_protect+0x80 rcr3 sys/arch/amd64/compile/SYZKALLER/obj/machine/cpufunc.h:139 [inline]
#2  pmap_write_protect+0x80 pmap_map_ptes sys/arch/amd64/amd64/pmap.c:441 [inline]
#2  pmap_write_protect+0x80 sys/arch/amd64/amd64/pmap.c:2173
#3  uvm_map_protect+0xb95 pmap_protect sys/arch/amd64/compile/SYZKALLER/obj/machine/pmap.h:481 [inline]
#3  uvm_map_protect+0xb95 sys/uvm/uvm_map.c:3202
#4  sys_mprotect+0x351 sys/uvm/uvm_mmap.c:590
#5  syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#5  syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783
#6  Xsyscall+0x128
Process 45949 (syz-executor) thread 0xffff800034f98028 (276835)
exclusive kernel_lock &kernel_lock r = 0 (0xffffffff83a2ff00)
#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 72182 (syz-executor) thread 0xffff8000fffe8550 (228811)
exclusive rwlock sbufrcv r = 0 (0xffff800001652470)
#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  sblock+0xb6 sys/kern/uipc_socket2.c:536
#3  soreceive+0x27d sys/kern/uipc_socket.c:890
#4  recvit+0x40b sys/kern/uipc_syscalls.c:1078
#5  sys_recvmmsg+0x410 sys/kern/uipc_syscalls.c:969
#6  syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#6  syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783
#7  Xsyscall+0x128
Process 84147 (syz-executor) thread 0xffff80002a2414d8 (252261)
exclusive rrwlock inode r = 0 (0xfffff3006c26fc58)
#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+0x963 sys/kern/vfs_lookup.c:580
#11 namei+0x7c5 sys/kern/vfs_lookup.c:250
#12 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1806
#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 (0xfffff3006d1c41e0)
#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+0x12b sys/kern/vfs_lookup.c:431
#6  namei+0x7c5 sys/kern/vfs_lookup.c:250
#7  dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1806
#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 11076  12213K   12350K 166960K     12460        0
            pcb    17     14K      15K 166960K        65        0
         rtable   213      8K       9K 166960K       385        0
             pf    38     18K      18K 166960K        60        0
         ifaddr    38      6K       7K 166960K        52        0
        ifgroup    55      2K       2K 166960K        70        0
         sysctl     3      1K       9K 166960K         7        0
       counters    70     37K      37K 166960K        82        0
       ioctlops     0      0K       4K 166960K      1516        0
            iov     1      4K      12K 166960K        12        0
          mount     1      1K       1K 166960K         1        0
            log     0      0K       0K 166960K         4        0
         vnodes  1358     85K      86K 166960K      1600        0
      UFS quota     1     32K      32K 166960K         1        0
      UFS mount     5     36K      36K 166960K         5        0
            shm     3      5K       9K 166960K         7        0
         VM map     2      1K       1K 166960K         2        0
            sem    12      0K       1K 166960K        19        0
        dirhash    12      2K       2K 166960K        12        0
           ACPI  1692    195K     286K 166960K     12470        0
      file desc    17     61K      97K 166960K       327        0
          sigio     0      0K       0K 166960K         2        0
           proc    72    115K     164K 166960K       577        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        19        0
       in_multi    81      5K       7K 166960K       107        0
    ether_multi     1      0K       0K 166960K         3        0
            mrt     0      0K       0K 166960K         8        0
    ISOFS mount     1     32K      32K 166960K         1        0
  MSDOSFS mount     1     16K      16K 166960K         1        0
           ttys    73    334K     334K 166960K        73        0
           exec     0      0K       1K 166960K       458        0
   fusefs mount     1     32K      32K 166960K         1        0
     pfkey data     0      0K       0K 166960K         1        0
            tdb     3      0K       0K 166960K         3        0
        VM swap     8     62K      64K 166960K        10        0
       UVM amap   246    168K     177K 166960K      4731        0
       UVM aobj     9      2K       3K 166960K        10        0
     pinsyscall    42     84K     107K 166960K      1486        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    12      0K       1K 166960K        33        0
           temp    37   9118K    9126K 166960K      7487        0
         kqueue    14     22K      30K 166960K        57        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       76    0       73     2     0     2     2     0     8    1
rtentry    176      117    0       24     5     0     5     5     0     8    0
unpcb      144      471    0      448     6     0     6     6     0     8    5
syncache   336        4    0        4     1     1     0     1     0     8    0
tcpcb      736       77    0       73     4     0     4     4     0     8    3
arp        136       18    0        4     1     0     1     1     0     8    0
ipq         40        1    0        0     1     0     1     1     0     8    0
ipqe        40        1    0        0     1     0     1     1     0     8    0
inpcb      328      375    0      367     7     0     7     7     0     8    6
nd6        152       29    0        7     1     0     1     1     0     8    0
pkpcb       40        1    0        1     1     0     1     1     0     8    1
kcovpl      48        8    0        0     1     0     1     1     0     8    0
ppxss      1192       3    0        3     1     1     0     1     0     8    0
pfstscr     40        6    0        4     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
pfsrclim   320        1    0        1     1     0     1     1     0     8    1
pftag       88        1    0        0     1     0     1     1     0     8    0
pfqueue    320        1    0        0     1     0     1     1     0     8    0
pfstitem    24       25    0        0     1     0     1     1     0     8    0
pfstkey    128       29    0        4     1     0     1     1     0     8    0
pfstate    448       26    0        2     3     0     3     3     0     8    0
pfrule     1360      22    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      510    0       99    29     0    29    29     0     8    2
art_table   40      511    0       99     5     0     5     5     0     8    0
art_node    32      117    0       33     1     0     1     1     0     8    0
semapl      72       15    0        5     1     0     1     1     0     8    0
shmpl      112        7    0        1     1     0     1     1     0     8    0
dirhash    1024      17    0        0     3     0     3     3     0     8    0
dino2pl    256     1879    0      412    93     0    93    93     0     8    0
ffsino     296     1879    0      412   114     0   114   114     0     8    0
nchpl      144     2356    0      653    64     0    64    64     0     8    0
rtmask      32        2    0        2     1     1     0     1     0     8    0
vnodes     216     2144    0        0   120     0   120   120     0     8    0
namei      1024    7575    0     7575     1     0     1     1     0     8    1
percpumem   16       56    0        6     1     0     1     1     0     8    0
kstatmem   264       37    0        8     3     0     3     3     0     8    0
scsiplug    72        1    0        1     1     0     1     1     0     8    1
scxspl     216     7521    0     7521     4     3     1     3     1     8    1
plimitpl   152       48    0       30     1     0     1     1     0     8    0
sigapl     424      645    0      598     7     1     6     7     0     8    0
knotepl    120      638    0        0    20     0    20    20     0     8    0
kqueuepl   224       67    0       57     1     0     1     1     0     8    0
pipepl     344      137    0      110     3     0     3     3     0     8    0
fdescpl    528      629    0      598     3     0     3     3     0     8    0
filepl     160     3330    0     3104    15     0    15    15     0     8    4
lockfpl    104      113    0      107     1     0     1     1     0     8    0
lockfspl    48       50    0       46     1     0     1     1     0     8    0
sessionpl  144       59    0       50     1     0     1     1     0     8    0
pgrppl      48       67    0       50     1     0     1     1     0     8    0
ucredpl    104      339    0      326     1     0     1     1     0     8    0
zombiepl   144      598    0      598     1     0     1     1     0     8    1
processpl  1232     645    0      598     5     1     4     5     0     8    0
procpl     664      986    0      926     6     0     6     6     0     8    0
sockpl     752      926    0      892    19     2    17    17     0     8   12
mcl64k     65536      4    0        0     1     0     1     1     0     8    0
mcl16k     16384      3    0        0     1     0     1     1     0     8    0
mcl8k      8192       5    0        0     1     0     1     1     0     8    0
mcl4k      4096     119    0        0    15     0    15    15     0     8    0
mcl2k      2048      21    0        0     3     0     3     3     0     8    0
mtagpl      96        4    0        0     1     0     1     1     0     8    0
mbufpl     256      322    0        0    21     0    21    21     0     8    0
bufpl      272     2554    0      106   164     0   164   164     0     8    0
anonpl      32     7560    0        0    61     0    61    61     0   246    0
amapchunkpl 152   14112    0    13470    27     1    26    26     0   158    0
amappl16   200     2104    0     2076    22     7    15    15     0     8   12
amappl15   192        6    0        6     1     1     0     1     0     8    0
amappl14   184      430    0      429     1     0     1     1     0     8    0
amappl13   176      124    0      112     1     0     1     1     0     8    0
amappl12   168      875    0      845     2     0     2     2     0     8    0
amappl11   160       20    0       20     2     2     0     1     0     8    0
amappl10   152       65    0       51     1     0     1     1     0     8    0
amappl9    144      293    0      293     1     1     0     1     0     8    0
amappl8    136      111    0      109     1     0     1     1     0     8    0
amappl7    128      148    0      134     1     0     1     1     0     8    0
amappl6    120      161    0      160     1     0     1     1     0     8    0
amappl5    112       96    0       85     1     0     1     1     0     8    0
amappl4    104      298    0      279     1     0     1     1     0     8    0
amappl3     96     2800    0     2678     4     0     4     4     0     8    0
amappl2     88      538    0      478     2     0     2     2     0     8    0
amappl1     80    11285    0    10683    14     0    14    14     0     8    1
amappl      88     3977    0     3804     5     0     5     5     0    92    0
uvmvnodes   80      106    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      254    0      254     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        9    0        1     1     0     1     1     0     8    0
uaddrrnd    24      629    0      598     1     0     1     1     0     8    0
uaddrbest   32        2    0        0     1     0     1     1     0     8    0
uaddr       24      629    0      598     1     0     1     1     0     8    0
vmmpekpl   168     7058    0     7028     2     0     2     2     0     8    0
vmmpepl    168    48525    0    46593    97     0    97    97     0   357   10
vmsppl     488      628    0      598     5     0     5     5     0     8    1
rwobjpl     80    16891    0    15837    27     0    27    27     0     8    2
pdppl      4096    1265    0     1196    99    28    71    87     0     8    2
pvpl        32    14902    0        0   121     0   121   121     0   265    0
pmappl     256      628    0      598     3     0     3     3     0     8    0
extentpl    40       45    0       27     1     0     1     1     0     8    0
phpool     112      448    0       32    12     0    12    12     0     8    0
ddb{1}> machine ddbcpu 0
Stopped at      x86_ipi_db+0x27:        addq    $0x8,%rsp
x86_ipi_db(ffffffff838f1ff0) 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
x86_bus_space_io_read_1(3f8,5) at x86_bus_space_io_read_1+0x37 sys/arch/amd64/amd64/bus_space.c:670
comcnputc(800,6c) at comcnputc+0x250 comcn_read_reg sys/dev/ic/com.c:1671 [inline]
comcnputc(800,6c) at comcnputc+0x250 sys/dev/ic/com.c:1274
cnputc(6c) at cnputc+0x67 sys/dev/cons.c:218
db_putchar(6c) at db_putchar+0x36d sys/ddb/db_output.c:155
kprintf() at kprintf+0x29c5 sys/kern/subr_prf.c:-1
db_printf(ffffffff834ae33d) at db_printf+0x9b sys/kern/subr_prf.c:-1
db_ktrap(6,0,ffff80003c402470) at db_ktrap+0x1b6 db_printtrap sys/arch/amd64/amd64/db_interface.c:103 [inline]
db_ktrap(6,0,ffff80003c402470) at db_ktrap+0x1b6 sys/arch/amd64/amd64/db_interface.c:128
kerntrap(ffff80003c402470) at kerntrap+0x243 sys/arch/amd64/amd64/trap.c:519
alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b
dovutimens(ffff800034f98028,fffff3006b862d90,ffff80003c402650) at dovutimens+0x368 sys/kern/vfs_syscalls.c:2690
sys_futimes(ffff800034f98028,ffff80003c4027a0,ffff80003c4026f0) at sys_futimes+0x208 sys/kern/vfs_syscalls.c:2732
end trace frame: 0xffff80003c402790, count: 0
ddb{0}> trace
x86_ipi_db(ffffffff838f1ff0) 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
x86_bus_space_io_read_1(3f8,5) at x86_bus_space_io_read_1+0x37 sys/arch/amd64/amd64/bus_space.c:670
comcnputc(800,6c) at comcnputc+0x250 comcn_read_reg sys/dev/ic/com.c:1671 [inline]
comcnputc(800,6c) at comcnputc+0x250 sys/dev/ic/com.c:1274
cnputc(6c) at cnputc+0x67 sys/dev/cons.c:218
db_putchar(6c) at db_putchar+0x36d sys/ddb/db_output.c:155
kprintf() at kprintf+0x29c5 sys/kern/subr_prf.c:-1
db_printf(ffffffff834ae33d) at db_printf+0x9b sys/kern/subr_prf.c:-1
db_ktrap(6,0,ffff80003c402470) at db_ktrap+0x1b6 db_printtrap sys/arch/amd64/amd64/db_interface.c:103 [inline]
db_ktrap(6,0,ffff80003c402470) at db_ktrap+0x1b6 sys/arch/amd64/amd64/db_interface.c:128
kerntrap(ffff80003c402470) at kerntrap+0x243 sys/arch/amd64/amd64/trap.c:519
alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b
dovutimens(ffff800034f98028,fffff3006b862d90,ffff80003c402650) at dovutimens+0x368 sys/kern/vfs_syscalls.c:2690
sys_futimes(ffff800034f98028,ffff80003c4027a0,ffff80003c4026f0) at sys_futimes+0x208 sys/kern/vfs_syscalls.c:2732
syscall(ffff80003c4027a0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80003c4027a0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x908226a6800, count: -16
ddb{0}> machine ddbcpu 1
Stopped at      savectx+0xae:   movl    $0,%gs:0x688
savectx() at savectx+0xae
end of kernel
end trace frame: 0x79a995b81c90, count: 14
ddb{1}> trace
savectx() at savectx+0xae
end of kernel
end trace frame: 0x79a995b81c90, count: -1

Crashes (5727):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/06/19 10:28 openbsd e607e174aea6 62cc6db3 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: x86_ipi_db
2026/06/19 09:09 openbsd e607e174aea6 62cc6db3 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: x86_ipi_db
2026/06/19 08:03 openbsd e607e174aea6 62cc6db3 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: x86_ipi_db
2026/06/19 07:47 openbsd e607e174aea6 62cc6db3 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: x86_ipi_db
2026/06/19 05:53 openbsd e607e174aea6 62cc6db3 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: x86_ipi_db
2026/06/19 04:51 openbsd e607e174aea6 62cc6db3 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: x86_ipi_db
2026/06/19 02:58 openbsd aad3118e28ac 62cc6db3 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: x86_ipi_db
2026/06/19 01:35 openbsd aad3118e28ac 62cc6db3 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: x86_ipi_db
2026/06/19 00:23 openbsd aad3118e28ac 62cc6db3 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: x86_ipi_db
2026/06/18 23:46 openbsd aad3118e28ac 62cc6db3 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: x86_ipi_db
2026/06/18 22:38 openbsd aad3118e28ac 62cc6db3 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: x86_ipi_db
2026/06/18 20:14 openbsd aad3118e28ac 62cc6db3 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: x86_ipi_db
2026/06/18 19:00 openbsd aad3118e28ac 62cc6db3 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: x86_ipi_db
2026/06/18 17:56 openbsd aad3118e28ac 62cc6db3 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: x86_ipi_db
2026/06/18 16:55 openbsd aad3118e28ac 62cc6db3 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: x86_ipi_db
2026/06/18 15:51 openbsd aad3118e28ac 62cc6db3 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: x86_ipi_db
2026/06/18 13:41 openbsd 135881df8fe2 62cc6db3 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: x86_ipi_db
2026/06/18 12:41 openbsd 135881df8fe2 62cc6db3 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: x86_ipi_db
2026/06/18 12:16 openbsd 135881df8fe2 62cc6db3 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: x86_ipi_db
2026/06/18 11:15 openbsd 135881df8fe2 62cc6db3 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: x86_ipi_db
2026/06/18 10:00 openbsd 135881df8fe2 62cc6db3 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: x86_ipi_db
2026/06/18 08:07 openbsd 135881df8fe2 62cc6db3 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: x86_ipi_db
2026/06/18 06:52 openbsd 135881df8fe2 62cc6db3 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: x86_ipi_db
2026/06/18 05:48 openbsd 135881df8fe2 62cc6db3 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: x86_ipi_db
2026/06/18 04:44 openbsd 135881df8fe2 62cc6db3 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: x86_ipi_db
2026/06/18 03:38 openbsd 135881df8fe2 62cc6db3 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: x86_ipi_db
2026/06/18 02:25 openbsd 135881df8fe2 62cc6db3 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: x86_ipi_db
2026/06/18 01:04 openbsd abb34060f546 62cc6db3 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: x86_ipi_db
2026/06/17 23:50 openbsd abb34060f546 62cc6db3 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: x86_ipi_db
2026/06/17 22:37 openbsd abb34060f546 62cc6db3 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: x86_ipi_db
2026/06/17 20:39 openbsd abb34060f546 62cc6db3 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: x86_ipi_db
2026/06/17 19:20 openbsd abb34060f546 62cc6db3 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: x86_ipi_db
2026/06/17 18:03 openbsd abb34060f546 62cc6db3 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: x86_ipi_db
2026/06/17 16:54 openbsd abb34060f546 62cc6db3 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: x86_ipi_db
2026/06/17 15:23 openbsd abb34060f546 62cc6db3 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: x86_ipi_db
2026/06/17 14:11 openbsd abb34060f546 62cc6db3 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: x86_ipi_db
2026/06/17 13:03 openbsd abb34060f546 62cc6db3 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: x86_ipi_db
2026/06/17 11:29 openbsd 2f229140c828 62cc6db3 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: x86_ipi_db
2026/06/17 10:52 openbsd 2f229140c828 62cc6db3 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: x86_ipi_db
2026/06/17 09:47 openbsd 2f229140c828 62cc6db3 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: x86_ipi_db
2026/06/17 08:28 openbsd 2f229140c828 62cc6db3 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: x86_ipi_db
2026/06/17 06:34 openbsd 2f229140c828 62cc6db3 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: x86_ipi_db
2026/06/17 05:10 openbsd 2f229140c828 62cc6db3 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: x86_ipi_db
2026/06/17 04:02 openbsd 2f229140c828 62cc6db3 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: x86_ipi_db
2025/12/25 21:20 openbsd b1d076877106 5dc09de1 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-setuid uvm_fault: x86_ipi_db
2025/02/14 23:54 openbsd 8d2464095911 40a34ec9 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: x86_ipi_db
* Struck through repros no longer work on HEAD.