syzbot


uvm_fault: softclock (5)

Status: upstream: reported on 2024/09/02 02:13
Reported-by: syzbot+0b66145125cc9fd44e27@syzkaller.appspotmail.com
First crash: 63d, last: 63d
Similar bugs (4)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
openbsd uvm_fault: softclock (3) 1 437d 437d 0/3 auto-obsoleted due to no activity on 2023/11/22 14:27
openbsd uvm_fault: softclock 1 747d 747d 0/3 auto-obsoleted due to no activity on 2023/01/17 03:44
openbsd uvm_fault: softclock (4) 9 212d 243d 0/3 auto-obsoleted due to no activity on 2024/07/04 14:38
openbsd uvm_fault: softclock (2) 2 606d 619d 0/3 auto-obsoleted due to no activity on 2023/06/06 21:13

Sample crash report:
uvm_fault(0xffffffff835d6048, 0xffffffff81b5ec21, 0, 2) -> e
kernel: page fault trap, code=3
Stopped at      softclock+0xf7: movq    %rcx,0x8(%rax)
    TID    PID    UID     PRFLAGS     PFLAGS  CPU  COMMAND
*168745  97026     73   0x1100010          0    0  syslogd
 243889  71475      0     0x14000      0x200    1K update
softclock(0) at softclock+0xf7 sys/kern/kern_timeout.c:748
softintr_dispatch(0) at softintr_dispatch+0xf6 sys/arch/amd64/amd64/softintr.c:90
Xsoftclock() at Xsoftclock+0x27
__sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x33 kd_curproc sys/dev/kcov.c:590 [inline]
__sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x33 sys/dev/kcov.c:158
__mp_lock(ffffffff835d9258) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:113 [inline]
__mp_lock(ffffffff835d9258) at __mp_lock+0x1a3 sys/kern/kern_lock.c:144
syscall(ffff80002a06acc0) at syscall+0xa11 mi_syscall_return sys/sys/syscall_mi.h:207 [inline]
syscall(ffff80002a06acc0) at syscall+0xa11 sys/arch/amd64/amd64/trap.c:598
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7b77aba334c0, count: 8
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{0}> 
ddb{0}> set $lines = 0
ddb{0}> set $maxwidth = 0
ddb{0}> show panic
*cpu0: uvm_fault(0xffffffff835d6048, 0xffffffff81b5ec21, 0, 2) -> e
ddb{0}> trace
softclock(0) at softclock+0xf7 sys/kern/kern_timeout.c:748
softintr_dispatch(0) at softintr_dispatch+0xf6 sys/arch/amd64/amd64/softintr.c:90
Xsoftclock() at Xsoftclock+0x27
__sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x33 kd_curproc sys/dev/kcov.c:590 [inline]
__sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x33 sys/dev/kcov.c:158
__mp_lock(ffffffff835d9258) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:113 [inline]
__mp_lock(ffffffff835d9258) at __mp_lock+0x1a3 sys/kern/kern_lock.c:144
syscall(ffff80002a06acc0) at syscall+0xa11 mi_syscall_return sys/sys/syscall_mi.h:207 [inline]
syscall(ffff80002a06acc0) at syscall+0xa11 sys/arch/amd64/amd64/trap.c:598
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7b77aba334c0, count: -7
ddb{0}> show registers
rdi                                0
rsi                              0x1
rbp               0xffff80002a06aa80
rbx               0xffffffff835279e0    timeout_todo
rdx                                0
rcx               0xffffffff835279e0    timeout_todo
rax               0xffffffff81b5ec19    splassert_check+0x99
r8                                 0
r9                                 0
r10               0xa28dea20097e88cd
r11               0x45772791d809cbeb
r12                       0xffffffff
r13               0xffffffff83531e10    rdrand_tmo
r14                                0
r15               0xfffffd80669d1f00
rip               0xffffffff81f030c7    softclock+0xf7
cs                               0x8
rflags                       0x10246    __ALIGN_SIZE+0xf246
rsp               0xffff80002a06aa40
ss                              0x10
softclock+0xf7: movq    %rcx,0x8(%rax)
ddb{0}> show proc
PROC (syslogd) tid=168745 pid=97026 tcnt=1 stat=onproc
    flags process=1100010<SUGID,PLEDGE,CHROOT> proc=0
    runpri=17, usrpri=56, slppri=17, nice=20
    wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0
    forw=0xffffffffffffffff, list=0xffff8000ffffcf40,0xffff8000ffffd6e8
    process=0xffff8000ffffa8d8 user=0xffff80002a065000, vmspace=0xfffffd806ed0aa58
    estcpu=6, cpticks=0, pctcpu=12.26, user=40, sys=11901, intr=4014
ddb{0}> ps
   PID     TID   PPID    UID  S       FLAGS  WAIT          COMMAND
 78807  292809  33719      0  3        0x82  wait          syz-executor
 63147  138028  33719      0  3        0x82  wait          syz-executor
 21356  302657  33719      0  3        0x82  wait          syz-executor
 79247  323551  33719      0  3        0x82  wait          syz-executor
 19543  499409  33719      0  3        0x82  wait          syz-executor
  9066  291828  33719      0  3        0x82  wait          syz-executor
 26505  335725  33719      0  3        0x82  wait          syz-executor
 14576  401263      0      0  3     0x14200  acct          acct
 49294  507652      1      0  3    0x100083  ttyin         getty
 17173  314599      0      0  3     0x14200  bored         sosplice
 33719   89105  38908      0  3        0x82  wait          syz-executor
 38908  392216  87260      0  3    0x10008a  sigsusp       ksh
 87260   16448  74364      0  3        0x98  kqread        sshd-session
 74364   85755  43850      0  3        0x92  kqread        sshd-session
 43850  207556      1      0  3        0x88  kqread        sshd
 17205  475901  61614     74  3   0x1100092  bpf           pflogd
 61614   84748      1      0  3        0x80  sbwait        pflogd
*97026  168745  77078     73  7   0x1100010                syslogd
 77078  189489      1      0  3    0x100082  sbwait        syslogd
 11750  378457      1      0  3    0x100080  kqread        resolvd
 50071  416724  42452     77  3    0x100092  kqread        dhcpleased
  2185  312895  42452     77  3    0x100092  kqread        dhcpleased
 42452   46673      1      0  3        0x80  kqread        dhcpleased
 98125  456976      0      0  2     0x14200                smr
 59557  173039      0      0  3     0x14200  pgzero        zerothread
 59761   76232      0      0  3     0x14200  aiodoned      aiodoned
 71475  243889      0      0  7     0x14200                update
 92792  440657      0      0  3     0x14200  cleaner       cleaner
 21027  296293      0      0  2     0x14200                reaper
 88559  126868      0      0  3     0x14200  pgdaemon      pagedaemon
 56386  207324      0      0  3     0x14200  bored         viomb
 43429  223517      0      0  3  0x40014200  acpi0         acpi0
 42797  493165      0      0  3  0x40014200                idle1
  9442   36204      0      0  3     0x14200  bored         softnet3
 13338  231468      0      0  3     0x14200  bored         softnet2
 19392  398591      0      0  3     0x14200  bored         softnet1
 59085   16441      0      0  3     0x14200  bored         softnet0
 29662  456182      0      0  2     0x14200                systqmp
 83323  377087      0      0  3     0x14200  bored         systq
 52377  514834      0      0  3     0x14200  tmoslp        softclockmp
 10434  180540      0      0  3  0x40014200  tmoslp        softclock
 32259  159476      0      0  3  0x40014200                idle0
     1  450243      0      0  3        0x82  wait          init
     0       0     -1      0  3     0x10200  scheduler     swapper
ddb{0}> show all locks
CPU 0:
exclusive mutex /syzkaller/managers/multicore/kernel/sys/kern/kern_timeout.c:57 r = 0 (0xffffffff83486170)
#0  witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0  witness_lock+0x5b8 sys/kern/subr_witness.c:1151
#1  mtx_enter_try+0x178
#2  mtx_enter+0x60 sys/kern/kern_lock.c:239
#3  softclock_process_tick_timeout+0x224 sys/kern/kern_timeout.c:720
#4  softclock+0x16b sys/kern/kern_timeout.c:752
#5  softintr_dispatch+0xf6 sys/arch/amd64/amd64/softintr.c:90
#6  Xsoftclock+0x27
#7  __sanitizer_cov_trace_pc+0x33 kd_curproc sys/dev/kcov.c:590 [inline]
#7  __sanitizer_cov_trace_pc+0x33 sys/dev/kcov.c:158
#8  __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:113 [inline]
#8  __mp_lock+0x1a3 sys/kern/kern_lock.c:144
#9  syscall+0xa11 mi_syscall_return sys/sys/syscall_mi.h:207 [inline]
#9  syscall+0xa11 sys/arch/amd64/amd64/trap.c:598
#10 Xsyscall+0x128
CPU 1:
exclusive mutex &(curpg)->mdpage.pv_mtx r = 0 (0xfffffd8007463638)
#0  witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0  witness_lock+0x5b8 sys/kern/subr_witness.c:1151
#1  mtx_enter_try+0x178
#2  mtx_enter+0x60 sys/kern/kern_lock.c:239
#3  pmap_remove_ptes+0x297 sys/arch/amd64/amd64/pmap.c:1706
#4  pmap_do_remove+0x533 sys/arch/amd64/amd64/pmap.c:1915
#5  uvm_unmap_kill_entry_withlock+0x274 sys/uvm/uvm_map.c:1865
#6  uvm_map_teardown+0x1c7 sys/uvm/uvm_map.c:2498
#7  uvmspace_free+0xcd sys/uvm/uvm_map.c:3422
#8  reaper+0x246 sys/kern/kern_exit.c:481
#9  proc_trampoline+0x10
exclusive mutex &pmap->pm_mtx r = 0 (0xfffffd806be8bac8)
#0  witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0  witness_lock+0x5b8 sys/kern/subr_witness.c:1151
#1  mtx_enter_try+0x178
#2  mtx_enter+0x60 sys/kern/kern_lock.c:239
#3  pmap_do_remove+0xa9 rcr3 machine/cpufunc.h:139 [inline]
#3  pmap_do_remove+0xa9 pmap_map_ptes sys/arch/amd64/amd64/pmap.c:432 [inline]
#3  pmap_do_remove+0xa9 sys/arch/amd64/amd64/pmap.c:1819
#4  uvm_unmap_kill_entry_withlock+0x274 sys/uvm/uvm_map.c:1865
#5  uvm_map_teardown+0x1c7 sys/uvm/uvm_map.c:2498
#6  uvmspace_free+0xcd sys/uvm/uvm_map.c:3422
#7  reaper+0x246 sys/kern/kern_exit.c:481
#8  proc_trampoline+0x10
Process 97026 (syslogd) thread 0xffff8000ffffd450 (168745)
Process 21027 (reaper) thread 0xffff800029fd91c0 (296293)
ddb{0}> show malloc
           Type InUse  MemUse  HighUse   Limit  Requests Type Lim
         devbuf 10235  10145K   10748K 166960K     15617        0
            pcb    17     22K      26K 166960K       636        0
         rtable   229     18K      19K 166960K      7356        0
             pf    45     19K      26K 166960K       801        0
         ifaddr    47      9K       9K 166960K       953        0
        ifgroup    68      2K       2K 166960K      1005        0
         sysctl     4      1K       1K 166960K        10        0
       counters    70     37K      37K 166960K       550        0
       ioctlops     0      0K       4K 166960K      2280        0
            iov     0      0K      32K 166960K       238        0
          mount     1      1K       1K 166960K         1        0
            log     0      0K       0K 166960K         4        0
         vnodes  1626    102K     102K 166960K      7316        0
      UFS quota     1     32K      32K 166960K         1        0
      UFS mount     5     36K      36K 166960K         5        0
            shm     2      1K       9K 166960K        53        0
         VM map     2      1K       1K 166960K         2        0
            sem    16     11K      11K 166960K        92        0
        dirhash    18      3K       3K 166960K        66        0
           ACPI  1697    195K     286K 166960K     12548        0
      file desc    10     33K      89K 166960K      6410        0
          sigio     0      0K       0K 166960K        85        0
           proc    71     91K     128K 166960K      6837        0
        subproc   104      6K       7K 166960K      2927        0
    NFS srvsock     1      0K       0K 166960K         1        0
     NFS daemon     1     16K      16K 166960K         1        0
    ip_moptions     0      0K       0K 166960K       571        0
       in_multi    90      6K       7K 166960K      2530        0
    ether_multi     1      0K       0K 166960K        23        0
            mrt     1      0K       0K 166960K         5        0
    ISOFS mount     1     32K      32K 166960K         1        0
  MSDOSFS mount     1     16K      16K 166960K         1        0
           ttys   241   1076K    1076K 166960K       241        0
           exec     0      0K       1K 166960K      3818        0
     pfkey data     0      0K       0K 166960K         5        0
            tdb     3      0K       0K 166960K         3        0
        VM swap     8     62K      64K 166960K        10        0
       UVM amap   258     91K     109K 166960K     47986        0
       UVM aobj   121      7K       7K 166960K       133        0
     pinsyscall    35     70K     103K 166960K     13147        0
        memdesc     1      4K       4K 166960K         1        0
    crypto data     1      1K       1K 166960K         1        0
    ip6_options     0      0K       0K 166960K       208        0
            NDP    15      0K       1K 166960K       704        0
           temp    75   6824K    6952K 166960K    199650        0
         kqueue    13     20K      32K 166960K       477        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       24    0        0     1     0     1     1     0     8    0
rtpcb      120      827    0      824     5     4     1     3     0     8    0
rtentry    112     2598    0     2504     5     2     3     4     0     8    0
unpcb      144     3887    0     3870    46    45     1     7     0     8    0
syncache   336        3    0        3     1     1     0     1     0     8    0
tcpcb      808     1721    0     1717    62    61     1     8     0     8    0
arp        120      477    0      459     1     0     1     1     0     8    0
inpcb      336     5550    0     5541   110   108     2    18     0     8    0
nd6        136      702    0      678     1     0     1     1     0     8    0
pkpcb       40       23    0       23    12    12     0     1     0     8    0
kcovpl      48      225    0      217     1     0     1     1     0     8    0
ppxss      1168      15    0       15    12    12     0     1     0     8    0
pfstscr     40        9    0        7     1     0     1     1     0     8    0
pffrag     232       63    0       60     5     4     1     1     0   482    0
pffrnode    88       26    0       23     5     4     1     1     0     8    0
pffrent     40      202    0      199     5     4     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
pfrktable  1344      18    0       11     1     0     1     1     0     8    0
pfanchor   1288       7    0        1     1     0     1     1     0     8    0
pftag       88        4    0        2     1     0     1     1     0     8    0
pfstitem    24      491    0      449     1     0     1     1     0     8    0
pfstkey    128      510    0      464     3     0     3     3     0     8    0
pfstate    376      494    0      457    12     6     6     7     0     8    0
pfrule     1344      87    0       74     3     1     2     2     0     8    0
rttmr      136        1    0        1     1     1     0     1     0     8    0
art_heap8  4096       2    0        0     2     0     2     2     0     8    0
art_heap4  256    10196    0     9808    53    28    25    29     0     8    0
art_table   32    10198    0     9808     6     2     4     4     0     8    0
art_node    16     2587    0     2503     1     0     1     1     0     8    0
sysvmsgpl   40       14    0        9     3     2     1     1     0     8    0
semupl     112        2    0        2     2     2     0     1     0     8    0
semapl     112       88    0       74     1     0     1     1     0     8    0
shmpl      112      130    0       12     4     0     4     4     0     8    0
dirhash    1024      54    0       32     4     0     4     4     0     8    0
dino2pl    256     7688    0     5734   123     0   123   123     0     8    0
ffsino     272     7688    0     5734   131     0   131   131     0     8    0
nchpl      144    12510    0    11654    74    41    33    69     0     8    0
uvmvnodes   80     9676    0        0   198     0   198   198     0     8    0
vnodes     216     9676    0        0   538     0   538   538     0     8    0
namei      1024   64174    0    64174    19    19     0     1     0     8    0
percpumem   16      289    0      240     1     0     1     1     0     8    0
pfiaddrpl  120       70    0       68     2     1     1     1     0     8    0
kstatmem   264      510    0      480     6     3     3     3     0     8    0
scsiplug    72        9    0        9     8     8     0     1     0     8    0
scxspl     216   151185    0   151170    22    21     1     8     1     8    0
plimitpl   152     1053    0     1034     1     0     1     1     0     8    0
sigapl     424     6294    0     6242    15     8     7     7     0     8    0
futexpl     64    50820    0    50820    22    21     1     1     0     8    1
knotepl    120      947    0        0    20     2    18    19     0     8    0
kqueuepl   216     1239    0     1230    22    21     1     5     0     8    0
pipepl     320     1095    0     1068     8     5     3     6     0     8    0
fdescpl    496     6271    0     6247    17    12     5     5     0     8    0
filepl     152    34963    0    34725   108    97    11    19     0     8    0
lockfpl    104     1538    0     1536     4     3     1     2     0     8    0
lockfspl    48      516    0      514     1     0     1     1     0     8    0
sessionpl  144      241    0      232     1     0     1     1     0     8    0
pgrppl      48      507    0      490     1     0     1     1     0     8    0
ucredpl    104     5169    0     5154     1     0     1     1     0     8    0
zombiepl   144     6251    0     6242     2     1     1     1     0     8    0
processpl  1160    6294    0     6242     5     1     4     5     0     8    0
procpl     648    11525    0    11463     8     2     6     7     0     8    0
srpgc       96       37    0       37    13    13     0     1     0     8    0
sosppl     168       17    0       17     8     8     0     1     0     8    0
sockpl     664    10331    0    10302   141   137     4    23     0     8    0
mcl64k     65536      3    0        0     1     0     1     1     0     8    0
mcl16k     16384      3    0        0     1     0     1     1     0     8    0
mcl12k     12288      1    0        0     1     0     1     1     0     8    0
mcl9k      9216       2    0        0     1     0     1     1     0     8    0
mcl8k      8192      11    0        0     2     0     2     2     0     8    0
mcl4k      4096       4    0        0     1     0     1     1     0     8    0
mcl2k2     2112       2    0        0     1     0     1     1     0     8    0
mcl2k      2048     386    0        0    31     2    29    31     0     8    0
mtagpl      96        7    0        0     1     0     1     1     0     8    0
mbufpl     256     4708    0        0   280     0   280   280     0     8    0
bufpl      280    19868    0     9536   739     0   739   739     0     8    0
anonpl      24   754085    0   746252   261   207    54    83     0   185    0
amapchunkpl 152  152579    0   151811   142   110    32    43     0   158    0
amappl16   200     8482    0     8458   143   130    13    18     0     8    2
amappl15   192        3    0        3     1     1     0     1     0     8    0
amappl14   184      582    0      570     1     0     1     1     0     8    0
amappl13   176        6    0        6     2     2     0     1     0     8    0
amappl12   168    10350    0    10319     3     1     2     2     0     8    0
amappl11   160       51    0       37     1     0     1     1     0     8    0
amappl10   152        5    0        4     2     1     1     1     0     8    0
amappl9    144      230    0      230     2     2     0     1     0     8    0
amappl8    136       19    0       15     1     0     1     1     0     8    0
amappl7    128      537    0      525     1     0     1     1     0     8    0
amappl6    120     2328    0     2326     1     0     1     1     0     8    0
amappl5    112      999    0      987     1     0     1     1     0     8    0
amappl4    104      977    0      955     1     0     1     1     0     8    0
amappl3     96    26161    0    26049     6     2     4     4     0     8    0
amappl2     88     6937    0     6856     2     0     2     2     0     8    0
amappl1     80    39835    0    39247    17     4    13    14     0     8    0
amappl      88    45830    0    45635     5     0     5     5     0    92    0
dma4096    4096       2    0        2     2     2     0     1     0     8    0
dma2048    2048       1    0        1     1     1     0     1     0     8    0
dma1024    1024       1    0        0     1     0     1     1     0     8    0
dma512     512        1    0        1     1     1     0     1     0     8    0
dma256     256        6    0        6     1     1     0     1     0     8    0
dma128     128      256    0      256     4     4     0     1     0     8    0
dma64       64        7    0        7     2     2     0     1     0     8    0
dma32       32        8    0        8     2     2     0     1     0     8    0
dma16       16       20    0       19     1     0     1     1     0     8    0
aobjpl      72      132    0       12     3     0     3     3     0     8    0
uaddrrnd    24     6271    0     6240     1     0     1     1     0     8    0
uaddrbest   32        2    0        0     1     0     1     1     0     8    0
uaddr       24     6271    0     6240     1     0     1     1     0     8    0
vmmpekpl   168    50949    0    50899     3     0     3     3     0     8    0
vmmpepl    168   376121    0   374152   198   101    97    99     0   357    0
vmsppl     440     6270    0     6239     6     2     4     5     0     8    0
rwobjpl     56   105837    0    95062   166    11   155   155     0     8    0
pdppl      4096   12549    0    12478   399   327    72    83     0     8    1
pvpl        32    45879    0        0   368     3   365   365     0   265    0
pmappl     248     6270    0     6239     3     0     3     3     0     8    0
extentpl    40       56    0       38     1     0     1     1     0     8    0
phpool     112     1238    0      563    20     0    20    20     0     8    0
ddb{0}> machine ddbcpu 0
Invalid cpu 0
ddb{0}> trace
softclock(0) at softclock+0xf7 sys/kern/kern_timeout.c:748
softintr_dispatch(0) at softintr_dispatch+0xf6 sys/arch/amd64/amd64/softintr.c:90
Xsoftclock() at Xsoftclock+0x27
__sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x33 kd_curproc sys/dev/kcov.c:590 [inline]
__sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x33 sys/dev/kcov.c:158
__mp_lock(ffffffff835d9258) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:113 [inline]
__mp_lock(ffffffff835d9258) at __mp_lock+0x1a3 sys/kern/kern_lock.c:144
syscall(ffff80002a06acc0) at syscall+0xa11 mi_syscall_return sys/sys/syscall_mi.h:207 [inline]
syscall(ffff80002a06acc0) at syscall+0xa11 sys/arch/amd64/amd64/trap.c:598
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7b77aba334c0, count: -7
ddb{0}> machine ddbcpu 1
Stopped at      x86_ipi_db+0x27:        addq    $0x8,%rsp
x86_ipi_db(ffff800029b7bff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:393
x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27
__sanitizer_cov_trace_cmp8(1fa620,1fa4e0) at __sanitizer_cov_trace_cmp8+0x3a sys/dev/kcov.c:218
buf_rb_bufs_RBT_COMPARE(ffff800029ff6d20,fffffd806f88a358) at buf_rb_bufs_RBT_COMPARE+0x5d rb_buf_compare sys/kern/vfs_subr.c:136 [inline]
buf_rb_bufs_RBT_COMPARE(ffff800029ff6d20,fffffd806f88a358) at buf_rb_bufs_RBT_COMPARE+0x5d sys/kern/vfs_subr.c:131
_rb_find(ffffffff83308e58,fffffd807ec293c8,ffff800029ff6d20) at _rb_find+0x68 sys/kern/subr_tree.c:450
getblk(fffffd807ec29360,1fa620,4000,0,ffffffffffffffff) at getblk+0xa7
bread(fffffd807ec29360,1fa620,4000,ffff800029ff6f48) at bread+0x47 bio_doread sys/kern/vfs_bio.c:430 [inline]
bread(fffffd807ec29360,1fa620,4000,ffff800029ff6f48) at bread+0x47 sys/kern/vfs_bio.c:475
ffs_update(fffffd806bbcc000,0) at ffs_update+0x198 sys/ufs/ffs/ffs_inode.c:91
VOP_FSYNC(fffffd80741af298,fffffd807f7d3dd0,3,ffff800029fd8518) at VOP_FSYNC+0x108 sys/kern/vfs_vops.c:311
syncer_thread(ffff800029fd8518) at syncer_thread+0x27c sys/kern/vfs_sync.c:161
end trace frame: 0x0, count: 4
ddb{1}> trace
x86_ipi_db(ffff800029b7bff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:393
x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27
__sanitizer_cov_trace_cmp8(1fa620,1fa4e0) at __sanitizer_cov_trace_cmp8+0x3a sys/dev/kcov.c:218
buf_rb_bufs_RBT_COMPARE(ffff800029ff6d20,fffffd806f88a358) at buf_rb_bufs_RBT_COMPARE+0x5d rb_buf_compare sys/kern/vfs_subr.c:136 [inline]
buf_rb_bufs_RBT_COMPARE(ffff800029ff6d20,fffffd806f88a358) at buf_rb_bufs_RBT_COMPARE+0x5d sys/kern/vfs_subr.c:131
_rb_find(ffffffff83308e58,fffffd807ec293c8,ffff800029ff6d20) at _rb_find+0x68 sys/kern/subr_tree.c:450
getblk(fffffd807ec29360,1fa620,4000,0,ffffffffffffffff) at getblk+0xa7
bread(fffffd807ec29360,1fa620,4000,ffff800029ff6f48) at bread+0x47 bio_doread sys/kern/vfs_bio.c:430 [inline]
bread(fffffd807ec29360,1fa620,4000,ffff800029ff6f48) at bread+0x47 sys/kern/vfs_bio.c:475
ffs_update(fffffd806bbcc000,0) at ffs_update+0x198 sys/ufs/ffs/ffs_inode.c:91
VOP_FSYNC(fffffd80741af298,fffffd807f7d3dd0,3,ffff800029fd8518) at VOP_FSYNC+0x108 sys/kern/vfs_vops.c:311
syncer_thread(ffff800029fd8518) at syncer_thread+0x27c sys/kern/vfs_sync.c:161
end trace frame: 0x0, count: -11

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/09/02 02:12 openbsd 24056440d1d6 1eda0d14 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: softclock
* Struck through repros no longer work on HEAD.