syzbot


uvm_fault: x86_ipi_db (8)

Status: upstream: reported on 2022/02/19 02:28
Reported-by: syzbot+8b6d073735f11e92c455@syzkaller.appspotmail.com
First crash: 819d, last: 1d21h
Similar bugs (7)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
openbsd uvm_fault: x86_ipi_db (3) 4 1179d 1196d 0/3 auto-closed as invalid on 2021/05/25 04:20
openbsd uvm_fault: x86_ipi_db (6) 1 995d 995d 0/3 closed as invalid on 2021/08/26 17:38
openbsd uvm_fault: x86_ipi_db (2) 1 1229d 1229d 0/3 closed as invalid on 2021/01/29 06:54
openbsd uvm_fault: x86_ipi_db (5) 1 1000d 1000d 0/3 closed as invalid on 2021/08/23 05:23
openbsd uvm_fault: x86_ipi_db (7) 4 869d 869d 3/3 fixed on 2021/12/30 22:14
openbsd uvm_fault: x86_ipi_db 1 1232d 1232d 0/3 closed as invalid on 2021/01/03 08:45
openbsd uvm_fault: x86_ipi_db (4) 1 1014d 1014d 0/3 closed as invalid on 2021/08/08 05:33

Sample crash report:
*cpu0: uvm_fault(0xfffffd8061bfb6f8, 0x8, 0, 1) -> e
ddb{1}> trace
proc_trampoline() at proc_trampoline+0xc7
end of kernel
end trace frame: 0x77492aab8ff0, count: -1
ddb{1}> show registers
rdi                                0
rsi                                0
rbp               0xffff800034fdd980
rbx                                0
rdx                                0
rcx               0xffff80002a20c5a0
rax                             0x2a
r8                0xffff800034fdd8b0
r9                               0x4
r10               0x195ed33a7a0416d7
r11                0xede62dcd8f03861
r12                                0
r13                                0
r14                                0
r15                                0
rip               0xffffffff826664c7    proc_trampoline+0xc7
cs                               0x8
rflags                         0x246
rsp               0xffff800034fdd900
ss                                 0
proc_trampoline+0xc7:   movl    $0,%gs:0x680
ddb{1}> show proc
PROC (syz-executor.1) tid=27828 pid=38651 tcnt=1 stat=onproc
    flags process=8000010<SUGID> proc=0
    runpri=84, usrpri=84, slppri=17, nice=20
    wchan=0x0, wmesg=, ps_single=0x0
    forw=0xffffffffffffffff, list=0xffff80002a20d790,0xffff80002a20c090
    process=0xffff800034fe5668 user=0xffff800034fd8000, vmspace=0xfffffd806ab48a60
    estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0
ddb{1}> ps
   PID     TID   PPID    UID  S       FLAGS  WAIT          COMMAND
*38651   27828   6984  32767  7   0x8000010                syz-executor.1
 44488   57750  84517  32767  2   0x8000010                syz-executor.0
 44488   59777  84517  32767  2   0xc000010                syz-executor.0
 47681  504432  32745  32767  2   0x8000010                syz-executor.2
 47681  160458  32745  32767  3   0xc000090  fsleep        syz-executor.2
 47681  294704  32745  32767  7   0xc000010                syz-executor.2
 20833  208691  12527  32767  3   0x8000090  nanoslp       syz-executor.5
 20833  436422  12527  32767  3   0xc000090  netio         syz-executor.5
 51493  150324  36548  32767  2   0x8000490                syz-executor.6
 51493  482033  36548  32767  3   0xc000090  kqread        syz-executor.6
 51493  482865  36548  32767  3   0xc000090  fsleep        syz-executor.6
 54168  281984  56665  32767  2   0x8000490                syz-executor.7
 54168  475529  56665  32767  3   0xc000090  kqsel         syz-executor.7
 54168   86849  56665  32767  3   0xc000090  fsleep        syz-executor.7
 95679  109513  21975  32767  2   0x8000010                syz-executor.4
 21975  218053  15090      0  3   0x8000082  wait          syz-executor.4
  6984  434768  19108  32767  3   0x8000090  nanoslp       syz-executor.1
 19108  199049  15090      0  3   0x8000082  wait          syz-executor.1
 12527  399375  65512  32767  2   0x8000490                syz-executor.5
 65512  256464  15090      0  3   0x8000082  wait          syz-executor.5
 56665  512199  24787  32767  3   0x8000090  nanoslp       syz-executor.7
 24787  158511  15090      0  3   0x8000082  wait          syz-executor.7
 84517  219564  14221  32767  2   0x8000490                syz-executor.0
 14221  351141  15090      0  3   0x8000082  wait          syz-executor.0
 36548  100683  98748  32767  2   0x8000490                syz-executor.6
 98748   88067  15090      0  3   0x8000082  wait          syz-executor.6
 32745  478656  36653  32767  3   0x8000090  nanoslp       syz-executor.2
 36653   95440  15090      0  3   0x8000082  wait          syz-executor.2
 42431  265783      0      0  3     0x14200  bored         sosplice
 15090   54869  28213      0  3  0x1a000082  thrsleep      syz-fuzzer
 15090  276274  28213      0  2  0x1e000482                syz-fuzzer
 15090  510536  28213      0  3  0x1e000082  thrsleep      syz-fuzzer
 15090  445786  28213      0  3  0x1e000082  wait          syz-fuzzer
 15090  210251  28213      0  3  0x1e000002  biowait       syz-fuzzer
 15090  192216  28213      0  3  0x1e000082  wait          syz-fuzzer
 15090  402833  28213      0  3  0x1e000082  wait          syz-fuzzer
 15090  413106  28213      0  3  0x1e000082  wait          syz-fuzzer
 15090  402190  28213      0  3  0x1e000082  thrsleep      syz-fuzzer
 15090  514627  28213      0  3  0x1e000082  wait          syz-fuzzer
 15090  321552  28213      0  3  0x1e000082  thrsleep      syz-fuzzer
 15090  286813  28213      0  3  0x1e000082  wait          syz-fuzzer
 15090  161815  28213      0  3  0x1e000082  wait          syz-fuzzer
 15090  483279  28213      0  3  0x1e000082  thrsleep      syz-fuzzer
 15090  186818  28213      0  3  0x1e000082  kqread        syz-fuzzer
 15090  342118  28213      0  3  0x1e000082  thrsleep      syz-fuzzer
 28213  116836  60043      0  3   0x810008a  sigsusp       ksh
 60043  130987  13539      0  3  0x1800009a  kqread        sshd
  5028  332644      1      0  3  0x18100083  ttyin         getty
 13539  236011      1      0  3  0x18000088  kqread        sshd
 79912  384871  39385     73  2  0x19100010                syslogd
 39385  471873      1      0  3  0x18100082  sbwait        syslogd
 37828  233526      1      0  3  0x18100080  kqread        resolvd
 19260  185341  43168     77  3  0x18100092  kqread        dhcpleased
 51003  264389  43168     77  3  0x18100092  kqread        dhcpleased
 43168  103466      1      0  3  0x18000080  kqread        dhcpleased
 66769   43215      0      0  3     0x14200  bored         smr
 17631   48658      0      0  2     0x14200                zerothread
 75431  164447      0      0  3     0x14200  aiodoned      aiodoned
 29965  411189      0      0  3     0x14200  syncer        update
 55159  412671      0      0  3     0x14200  cleaner       cleaner
 81742  140639      0      0  3     0x14200  reaper        reaper
 52066   74062      0      0  3     0x14200  pgdaemon      pagedaemon
 57542  234898      0      0  3     0x14200  bored         viomb
 70667  436744      0      0  3  0x40014200  acpi0         acpi0
 79987  216016      0      0  3  0x40014200                idle1
 76266  329160      0      0  3     0x14200  bored         softnet3
 30471   77302      0      0  3     0x14200  bored         softnet2
 47926  369709      0      0  3     0x14200  bored         softnet1
 81533  138696      0      0  3     0x14200  bored         softnet0
 69372   57874      0      0  3     0x14200  bored         systqmp
 83428   54343      0      0  3     0x14200  bored         systq
 29295  310529      0      0  3     0x14200  tmoslp        softclockmp
 19803   76047      0      0  2  0x40014200                softclock
 55987  270381      0      0  3  0x40014200                idle0
     1   43367      0      0  3   0x8000082  wait          init
     0       0     -1      0  3     0x10200  scheduler     swapper
ddb{1}> show all locks
CPU 1:
exclusive mutex &uvm.pageqlock r = 0 (0xffffffff82df0b68)
#0  witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0  witness_lock+0x446 sys/kern/subr_witness.c:1157
#1  mtx_enter_try+0x103
#2  mtx_enter+0x4e sys/kern/kern_lock.c:266
#3  uvm_fault_lower+0x7d6 sys/uvm/uvm_fault.c:1543
#4  uvm_fault+0x255 sys/uvm/uvm_fault.c:637
#5  upageflttrap+0x8e sys/arch/amd64/amd64/trap.c:188
#6  usertrap+0x22a sys/arch/amd64/amd64/trap.c:436
#7  recall_trap+0x8
Process 38651 (syz-executor.1) thread 0xffff80002a20c5a0 (27828)
exclusive rwlock uobjlk r = 0 (0xfffffd806d790e50)
#0  witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0  witness_lock+0x446 sys/kern/subr_witness.c:1157
#1  rw_enter+0x32d sys/kern/kern_rwlock.c:309
#2  uvm_fault_lower_lookup+0x4b sys/uvm/uvm_fault.c:1126
#3  uvm_fault_lower+0x62 sys/uvm/uvm_fault.c:1227
#4  uvm_fault+0x255 sys/uvm/uvm_fault.c:637
#5  upageflttrap+0x8e sys/arch/amd64/amd64/trap.c:188
#6  usertrap+0x22a sys/arch/amd64/amd64/trap.c:436
#7  recall_trap+0x8
shared rwlock vmmaplk r = 0 (0xfffffd806ab48b50)
#0  witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0  witness_lock+0x446 sys/kern/subr_witness.c:1157
#1  uvmfault_lookup+0xd9 sys/uvm/uvm_fault.c:1785
#2  uvm_fault_check+0x3e sys/uvm/uvm_fault.c:672
#3  uvm_fault+0xf2 sys/uvm/uvm_fault.c:600
#4  upageflttrap+0x8e sys/arch/amd64/amd64/trap.c:188
#5  usertrap+0x22a sys/arch/amd64/amd64/trap.c:436
#6  recall_trap+0x8
exclusive mutex &uvm.pageqlock r = 0 (0xffffffff82df0b68)
#0  witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0  witness_lock+0x446 sys/kern/subr_witness.c:1157
#1  mtx_enter_try+0x103
#2  mtx_enter+0x4e sys/kern/kern_lock.c:266
#3  uvm_fault_lower+0x7d6 sys/uvm/uvm_fault.c:1543
#4  uvm_fault+0x255 sys/uvm/uvm_fault.c:637
#5  upageflttrap+0x8e sys/arch/amd64/amd64/trap.c:188
#6  usertrap+0x22a sys/arch/amd64/amd64/trap.c:436
#7  recall_trap+0x8
Process 47681 (syz-executor.2) thread 0xffff80002a224028 (294704)
exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82e73988)
#0  witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0  witness_lock+0x446 sys/kern/subr_witness.c:1157
#1  __mp_acquire_count+0x48 sys/kern/kern_lock.c:227
#2  mi_switch+0x491 sys/kern/sched_bsd.c:470
#3  sleep_finish+0x19a sys/kern/kern_synch.c:417
#4  biowait+0x91 sys/kern/vfs_bio.c:1254
#5  bwrite+0x1fe sys/kern/vfs_bio.c:766
#6  ffs_update+0x27f sys/ufs/ffs/ffs_inode.c:111
#7  ufs_direnter+0x597 sys/ufs/ufs/ufs_lookup.c:726
#8  ufs_makeinode+0x3c2 sys/ufs/ufs/ufs_vnops.c:1764
#9  ufs_symlink+0x4b sys/ufs/ufs/ufs_vnops.c:1293
#10 VOP_SYMLINK+0xd7 sys/kern/vfs_vops.c:432
#11 dosymlinkat+0x158 sys/kern/vfs_syscalls.c:1809
#12 syscall+0x854 mi_syscall sys/sys/syscall_mi.h:180 [inline]
#12 syscall+0x854 sys/arch/amd64/amd64/trap.c:577
#13 Xsyscall+0x128
exclusive rrwlock inode r = 0 (0xfffffd806a48ee68)
#0  witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0  witness_lock+0x446 sys/kern/subr_witness.c:1157
#1  rw_enter+0x32d sys/kern/kern_rwlock.c:309
#2  rrw_enter+0x91 sys/kern/kern_rwlock.c:464
#3  VOP_LOCK+0x8b sys/kern/vfs_vops.c:524
#4  vn_lock+0x85 sys/kern/vfs_vnops.c:564
#5  vget+0x1fd sys/kern/vfs_subr.c:676
#6  ufs_ihashget+0x121 sys/ufs/ufs/ufs_ihash.c:119
#7  ffs_vget+0x7c sys/ufs/ffs/ffs_vfsops.c:1201
#8  ffs_inode_alloc+0x1e4 sys/ufs/ffs/ffs_alloc.c:393
#9  ufs_makeinode+0xb0 sys/ufs/ufs/ufs_vnops.c:1728
#10 ufs_symlink+0x4b sys/ufs/ufs/ufs_vnops.c:1293
#11 VOP_SYMLINK+0xd7 sys/kern/vfs_vops.c:432
#12 dosymlinkat+0x158 sys/kern/vfs_syscalls.c:1809
#13 syscall+0x854 mi_syscall sys/sys/syscall_mi.h:180 [inline]
#13 syscall+0x854 sys/arch/amd64/amd64/trap.c:577
#14 Xsyscall+0x128
Process 95679 (syz-executor.4) thread 0xffff80002a225c58 (109513)
exclusive rrwlock inode r = 0 (0xfffffd8064d471a8)
#0  witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0  witness_lock+0x446 sys/kern/subr_witness.c:1157
#1  rw_enter+0x32d sys/kern/kern_rwlock.c:309
#2  rrw_enter+0x91 sys/kern/kern_rwlock.c:464
#3  VOP_LOCK+0x8b sys/kern/vfs_vops.c:524
#4  ufs_ihashins+0x46
#5  ffs_vget+0x141 sys/ufs/ffs/ffs_vfsops.c:1230
#6  ffs_inode_alloc+0x1e4 sys/ufs/ffs/ffs_alloc.c:393
#7  ufs_mkdir+0xe6 sys/ufs/ufs/ufs_vnops.c:1112
#8  VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:394
#9  domkdirat+0x125 sys/kern/vfs_syscalls.c:3077
#10 syscall+0x854 mi_syscall sys/sys/syscall_mi.h:180 [inline]
#10 syscall+0x854 sys/arch/amd64/amd64/trap.c:577
#11 Xsyscall+0x128
exclusive rrwlock inode r = 0 (0xfffffd8068559a30)
#0  witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0  witness_lock+0x446 sys/kern/subr_witness.c:1157
#1  rw_enter+0x32d sys/kern/kern_rwlock.c:309
#2  rrw_enter+0x91 sys/kern/kern_rwlock.c:464
#3  VOP_LOCK+0x8b sys/kern/vfs_vops.c:524
#4  vn_lock+0x85 sys/kern/vfs_vnops.c:564
#5  vfs_lookup+0xd3 sys/kern/vfs_lookup.c:418
#6  namei+0x56a sys/kern/vfs_lookup.c:250
#7  domkdirat+0x79 sys/kern/vfs_syscalls.c:3062
#8  syscall+0x854 mi_syscall sys/sys/syscall_mi.h:180 [inline]
#8  syscall+0x854 sys/arch/amd64/amd64/trap.c:577
#9  Xsyscall+0x128
Process 15090 (syz-fuzzer) thread 0xffff80002a1491f8 (210251)
exclusive rrwlock inode r = 0 (0xfffffd806692cf88)
#0  witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0  witness_lock+0x446 sys/kern/subr_witness.c:1157
#1  rw_enter+0x32d sys/kern/kern_rwlock.c:309
#2  rrw_enter+0x91 sys/kern/kern_rwlock.c:464
#3  VOP_LOCK+0x8b sys/kern/vfs_vops.c:524
#4  vn_lock+0x85 sys/kern/vfs_vnops.c:564
#5  vget+0x1fd sys/kern/vfs_subr.c:676
#6  ufs_ihashget+0x121 sys/ufs/ufs/ufs_ihash.c:119
#7  ffs_vget+0x7c sys/ufs/ffs/ffs_vfsops.c:1201
#8  ufs_lookup+0x1373 sys/ufs/ufs/ufs_lookup.c:478
#9  VOP_LOOKUP+0x5c sys/kern/vfs_vops.c:85
#10 vfs_lookup+0x6f8 sys/kern/vfs_lookup.c:566
#11 namei+0x56a sys/kern/vfs_lookup.c:250
#12 dounlinkat+0x9d sys/kern/vfs_syscalls.c:1855
#13 syscall+0x854 mi_syscall sys/sys/syscall_mi.h:180 [inline]
#13 syscall+0x854 sys/arch/amd64/amd64/trap.c:577
#14 Xsyscall+0x128
exclusive rrwlock inode r = 0 (0xfffffd806692cd68)
#0  witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0  witness_lock+0x446 sys/kern/subr_witness.c:1157
#1  rw_enter+0x32d sys/kern/kern_rwlock.c:309
#2  rrw_enter+0x91 sys/kern/kern_rwlock.c:464
#3  VOP_LOCK+0x8b sys/kern/vfs_vops.c:524
#4  vn_lock+0x85 sys/kern/vfs_vnops.c:564
#5  vfs_lookup+0xd3 sys/kern/vfs_lookup.c:418
#6  namei+0x56a sys/kern/vfs_lookup.c:250
#7  dounlinkat+0x9d sys/kern/vfs_syscalls.c:1855
#8  syscall+0x854 mi_syscall sys/sys/syscall_mi.h:180 [inline]
#8  syscall+0x854 sys/arch/amd64/amd64/trap.c:577
#9  Xsyscall+0x128
Process 79912 (syslogd) thread 0xffff8000ffffdc40 (384871)
exclusive rrwlock inode r = 0 (0xfffffd806e6264e0)
#0  witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0  witness_lock+0x446 sys/kern/subr_witness.c:1157
#1  rw_enter+0x32d sys/kern/kern_rwlock.c:309
#2  rrw_enter+0x91 sys/kern/kern_rwlock.c:464
#3  VOP_LOCK+0x8b sys/kern/vfs_vops.c:524
#4  vn_lock+0x85 sys/kern/vfs_vnops.c:564
#5  sys_fsync+0xf1 sys/kern/vfs_syscalls.c:2904
#6  syscall+0x854 mi_syscall sys/sys/syscall_mi.h:180 [inline]
#6  syscall+0x854 sys/arch/amd64/amd64/trap.c:577
#7  Xsyscall+0x128
ddb{1}> show malloc
           Type InUse  MemUse  HighUse   Limit  Requests Type Lim
         devbuf 10195   6408K    6419K 166960K     11325        0
            pcb    17     12K      12K 166960K        17        0
         rtable   232      6K       7K 166960K      1116        0
             pf    27      8K       8K 166960K        61        0
         ifaddr    40     14K      15K 166960K       112        0
        ifgroup    46      2K       2K 166960K       114        0
         sysctl     4      1K       1K 166960K         4        0
       counters    62     36K      36K 166960K        96        0
       ioctlops     0      0K       2K 166960K        82        0
            iov     0      0K      32K 166960K       170        0
          mount     1      1K       1K 166960K         1        0
            log     0      0K       0K 166960K         4        0
         vnodes  1377     87K      87K 166960K      1778        0
      UFS quota     1     32K      32K 166960K         1        0
      UFS mount     5     36K      36K 166960K         5        0
            shm     2      1K      13K 166960K        72        0
         VM map     2      1K       1K 166960K         2        0
            sem    12      0K       1K 166960K       170        0
        dirhash    12      2K       3K 166960K       120        0
           ACPI  1697    195K     286K 166960K     12548        0
      file desc    22     81K     121K 166960K      2715        0
          sigio     0      0K       0K 166960K        66        0
           proc    59     91K     115K 166960K      1205        0
        subproc    91      5K       7K 166960K       312        0
    NFS srvsock     1      0K       0K 166960K         1        0
     NFS daemon     1     16K      16K 166960K         1        0
    ip_moptions     0      0K       0K 166960K       635        0
       in_multi    88      6K       7K 166960K       402        0
    ether_multi     1      0K       0K 166960K        11        0
            mrt     2      0K       0K 166960K         3        0
    ISOFS mount     1     32K      32K 166960K         1        0
  MSDOSFS mount     1     16K      16K 166960K         1        0
           ttys   205    917K     917K 166960K       205        0
           exec     0      0K       1K 166960K       847        0
            tdb     3      0K       0K 166960K         3        0
        VM swap     8     62K      64K 166960K        10        0
       UVM amap   299     68K     108K 166960K     25616        0
       UVM aobj   131      6K       7K 166960K       157        0
     pinsyscall    42     84K     109K 166960K      4239        0
        memdesc     1      4K       4K 166960K         1        0
    crypto data     1      1K       1K 166960K         1        0
    ip6_options     0      0K       0K 166960K       251        0
            NDP    10      0K       2K 166960K        75        0
           temp    70   6819K    6948K 166960K     11545        0
         kqueue    12     18K      28K 166960K       446        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       24    0        0     1     0     1     1     0     8    0
rtpcb      120      386    0      383     1     0     1     1     0     8    0
rtentry    112      333    0      224     4     0     4     4     0     8    0
unpcb      144     2535    0     2521    18    17     1     6     0     8    0
syncache   336       27    0       27    14    13     1     1     0     8    1
tcpqe       32       50    0       50     6     6     0     1     0     8    0
tcpcb      808     1552    0     1544    32    28     4     8     0     8    2
arp        120       53    0       36     1     0     1     1     0     8    0
ipq         40       11    0       10     4     3     1     1     0     8    0
ipqe        40      104    0      103     4     3     1     1     0     8    0
inpcb      384     3467    0     3452    47    42     5     9     0     8    3
nd6        136      114    0       85     2     0     2     2     0     8    0
kcovpl      48       24    0       17     1     0     1     1     0     8    0
rttmr      136        1    0        0     1     0     1     1     0     8    0
art_heap8  4096       1    0        0     1     0     1     1     0     8    0
art_heap4  256     1392    0      958    38     8    30    32     0     8    0
art_table   32     1393    0      958     5     1     4     5     0     8    0
art_node    16      332    0      232     1     0     1     1     0     8    0
sysvmsgpl   40       18    0       14     1     0     1     1     0     8    0
semupl     112        2    0        2     1     1     0     1     0     8    0
semapl     112      167    0      157     1     0     1     1     0     8    0
shmpl      112      154    0       26     4     0     4     4     0     8    0
dirhash    1024      89    0       72     3     0     3     3     0     8    0
dino2pl    256     5241    0     3714    96     0    96    96     0     8    0
ffsino     272     5241    0     3714   103     0   103   103     0     8    0
nchpl      144     9108    0     7370    66     0    66    66     0     8    0
uvmvnodes   80     5562    0        0   114     0   114   114     0     8    0
vnodes     216     5562    0        0   309     0   309   309     0     8    0
namei      1024   32576    0    32574     9     8     1     2     0     8    0
percpumem   16       62    0       17     1     0     1     1     0     8    0
kstatmem   264       54    0       34     2     0     2     2     0     8    0
scxspl     216    58335    0    58334    30    28     2     8     1     8    1
plimitpl   152      888    0      866     5     3     2     2     0     8    0
sigapl     424     2976    0     2924     7     0     7     7     0     8    0
futexpl     64    40507    0    40504    20    19     1     1     0     8    0
knotepl    120      750    0        0    12     1    11    11     0     8    0
kqueuepl   216      930    0      918     1     0     1     1     0     8    0
pipepl     320      602    0      575     8     5     3     6     0     8    0
fdescpl    496     2957    0     2924     7     2     5     6     0     8    0
filepl     152    19637    0    19402    31    20    11    15     0     8    0
lockfpl    104      815    0      813     1     0     1     1     0     8    0
lockfspl    48      284    0      282     1     0     1     1     0     8    0
sessionpl  144       39    0       24     1     0     1     1     0     8    0
pgrppl      48      104    0       89     1     0     1     1     0     8    0
ucredpl    104     4164    0     4147     1     0     1     1     0     8    0
zombiepl   144     2924    0     2924     1     0     1     1     0     8    1
processpl  1136    2976    0     2924     8     3     5     5     0     8    0
procpl     656     6011    0     5936    17     9     8     8     0     8    0
sosppl     168       50    0       50    19    18     1     1     0     8    1
sockpl     664     6464    0     6433    64    59     5    14     0     8    1
mcl64k     65536     18    0        0     3     0     3     3     0     8    0
mcl16k     16384      1    0        0     1     0     1     1     0     8    0
mcl12k     12288      2    0        0     1     0     1     1     0     8    0
mcl9k      9216       1    0        0     1     0     1     1     0     8    0
mcl8k      8192      13    0        0     2     0     2     2     0     8    0
mcl4k      4096       9    0        0     2     0     2     2     0     8    0
mcl2k2     2112       2    0        0     1     0     1     1     0     8    0
mcl2k      2048     582    0        0    42     9    33    42     0     8    0
mtagpl      96        5    0        0     1     0     1     1     0     8    0
mbufpl     256     1423    0        0    66     1    65    65     0     8    0
bufpl      280    12287    0     4290   572     0   572   572     0     8    0
anonpl      24   626651    0   616016   162    91    71    93     0   186    0
amapchunkpl 152   90826    0    90074    88    46    42    49     0   158    5
amappl16   200    12997    0    12614    75    54    21    22     0     8    0
amappl15   192       20    0       20     4     4     0     1     0     8    0
amappl14   184      197    0      186     2     1     1     2     0     8    0
amappl13   176       27    0       27     5     5     0     1     0     8    0
amappl12   168     3833    0     3798     3     0     3     3     0     8    0
amappl11   160       49    0       39     1     0     1     1     0     8    0
amappl10   152       62    0       53     2     1     1     1     0     8    0
amappl9    144      234    0      234     2     2     0     1     0     8    0
amappl8    136      228    0      190     2     0     2     2     0     8    0
amappl7    128       55    0       39     1     0     1     1     0     8    0
amappl6    120      538    0      524     2     1     1     2     0     8    0
amappl5    112      237    0      225     1     0     1     1     0     8    0
amappl4    104      643    0      610     2     0     2     2     0     8    0
amappl3     96    15988    0    15899     3     0     3     3     0     8    0
amappl2     88     3411    0     3335     4     2     2     4     0     8    0
amappl1     80    18205    0    17693    22    10    12    22     0     8    0
amappl      88    24660    0    24444     6     0     6     6     0    92    0
dma4096    4096       1    0        1     1     1     0     1     0     8    0
dma1024    1024       1    0        0     1     0     1     1     0     8    0
dma256     256        6    0        6     1     1     0     1     0     8    0
dma128     128      253    0      253     1     1     0     1     0     8    0
dma64       64        6    0        6     1     1     0     1     0     8    0
dma32       32        7    0        7     1     1     0     1     0     8    0
dma16       16       18    0       17     1     0     1     1     0     8    0
aobjpl      72      156    0       26     3     0     3     3     0     8    0
uaddrrnd    24     2957    0     2924     1     0     1     1     0     8    0
uaddrbest   32        2    0        0     1     0     1     1     0     8    0
uaddr       24     2957    0     2924     1     0     1     1     0     8    0
vmmpekpl   168    23237    0    23164     4     0     4     4     0     8    0
vmmpepl    168   194002    0   191703   202    96   106   116     0   357    4
vmsppl     440     2956    0     2924     8     3     5     5     0     8    0
rwobjpl     56    57598    0    50581   117    17   100   100     0     8    0
pdppl      4096    5921    0     5848   243   162    81    93     0     8    8
pvpl        32    48094    0        0   389     1   388   388     0   265    0
pmappl     248     2956    0     2924     4     1     3     3     0     8    0
extentpl    40       56    0       38     1     0     1     1     0     8    0
phpool     112      658    0      231    13     0    13    13     0     8    0
ddb{1}> machine ddbcpu 0
Stopped at      x86_ipi_db+0x1e:        addq    $0x8,%rsp
x86_ipi_db(ffffffff82d11ff0) at x86_ipi_db+0x1e sys/arch/amd64/amd64/db_interface.c:393
x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27
x86_bus_space_io_read_4(b008,0) at x86_bus_space_io_read_4+0x2e sys/arch/amd64/amd64/bus_space.c:666
acpitimer_delay(1) at acpitimer_delay+0x65 acpitimer_read sys/dev/acpi/acpitimer.c:142 [inline]
acpitimer_delay(1) at acpitimer_delay+0x65 sys/dev/acpi/acpitimer.c:120
comcnputc(800,a) at comcnputc+0x1d7 sys/dev/ic/com.c:1269
cnputc(a) at cnputc+0x4f sys/dev/cons.c:218
db_putchar(a) at db_putchar+0x4a8 sys/ddb/db_output.c:168
kprintf() at kprintf+0x69a
db_printf(ffffffff82906f7f) at db_printf+0x89 sys/kern/subr_prf.c:498
fault(ffffffff828b0260) at fault+0x95 sys/arch/amd64/amd64/trap.c:157
kpageflttrap(ffff80002f0e5630,8) at kpageflttrap+0x2b7 sys/arch/amd64/amd64/trap.c:290
kerntrap(ffff80002f0e5630) at kerntrap+0xf2 sys/arch/amd64/amd64/trap.c:332
alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b
end trace frame: 0xffff80002f0e5710, count: 0
ddb{0}> trace
x86_ipi_db(ffffffff82d11ff0) at x86_ipi_db+0x1e sys/arch/amd64/amd64/db_interface.c:393
x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27
x86_bus_space_io_read_4(b008,0) at x86_bus_space_io_read_4+0x2e sys/arch/amd64/amd64/bus_space.c:666
acpitimer_delay(1) at acpitimer_delay+0x65 acpitimer_read sys/dev/acpi/acpitimer.c:142 [inline]
acpitimer_delay(1) at acpitimer_delay+0x65 sys/dev/acpi/acpitimer.c:120
comcnputc(800,a) at comcnputc+0x1d7 sys/dev/ic/com.c:1269
cnputc(a) at cnputc+0x4f sys/dev/cons.c:218
db_putchar(a) at db_putchar+0x4a8 sys/ddb/db_output.c:168
kprintf() at kprintf+0x69a
db_printf(ffffffff82906f7f) at db_printf+0x89 sys/kern/subr_prf.c:498
fault(ffffffff828b0260) at fault+0x95 sys/arch/amd64/amd64/trap.c:157
kpageflttrap(ffff80002f0e5630,8) at kpageflttrap+0x2b7 sys/arch/amd64/amd64/trap.c:290
kerntrap(ffff80002f0e5630) at kerntrap+0xf2 sys/arch/amd64/amd64/trap.c:332
alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b
fifo_write(ffff80002f0e5720) at fifo_write+0x4f sys/miscfs/fifofs/fifo_vnops.c:273
VOP_WRITE(fffffd80698a7cf0,ffff80002f0e57b8,8,fffffd807f7d3548) at VOP_WRITE+0xc3 sys/kern/vfs_vops.c:245
vn_rdwr(1,fffffd80698a7cf0,ffff80002a156c00,100,0,1,afd494465c6fae26,ffff80002f0e58e0,fffffd80698a7cf0,78) at vn_rdwr+0xee sys/kern/vfs_vnops.c:324
ufs_symlink(ffff80002f0e58e0) at ufs_symlink+0x175 sys/ufs/ufs/ufs_vnops.c:1309
VOP_SYMLINK(fffffd80698a73a8,ffff80002f0e5a60,ffff80002f0e5a90,ffff80002f0e5990,ffff80002a156c00) at VOP_SYMLINK+0xd7 sys/kern/vfs_vops.c:432
dosymlinkat(ffff80002a224028,20000700,9,200004c0) at dosymlinkat+0x158 sys/kern/vfs_syscalls.c:1809
syscall(ffff80002f0e5c10) at syscall+0x854 mi_syscall sys/sys/syscall_mi.h:180 [inline]
syscall(ffff80002f0e5c10) at syscall+0x854 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xa7d3c661240, count: -22
ddb{0}> machine ddbcpu 1
Stopped at      proc_trampoline+0xc7:   movl    $0,%gs:0x680
proc_trampoline() at proc_trampoline+0xc7
end of kernel
end trace frame: 0x77492aab8ff0, count: 14
ddb{1}> trace
proc_trampoline() at proc_trampoline+0xc7
end of kernel
end trace frame: 0x77492aab8ff0, count: -1

Crashes (209):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/05/16 12:14 openbsd b20edd337af0 ef5d53ed .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-setuid uvm_fault: x86_ipi_db
2024/05/16 00:08 openbsd e298eee01736 ef5d53ed .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: x86_ipi_db
2024/05/15 16:43 openbsd f413dfa09d56 7e8e0c0f .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: x86_ipi_db
2024/05/15 09:27 openbsd f413dfa09d56 7e8e0c0f .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-setuid uvm_fault: x86_ipi_db
2024/05/14 16:38 openbsd 5dea098c4cfa fdb4c10c .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: x86_ipi_db
2024/05/14 15:16 openbsd 5dea098c4cfa fdb4c10c .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: x86_ipi_db
2024/05/14 08:51 openbsd 5dea098c4cfa fdb4c10c .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-setuid uvm_fault: x86_ipi_db
2024/05/13 13:23 openbsd 30293cdc5e30 9026e142 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-setuid uvm_fault: x86_ipi_db
2024/05/13 08:41 openbsd 30293cdc5e30 9026e142 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-setuid uvm_fault: x86_ipi_db
2024/05/13 05:57 openbsd 30293cdc5e30 9026e142 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-setuid uvm_fault: x86_ipi_db
2024/05/12 23:38 openbsd bae657104f70 9026e142 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-setuid uvm_fault: x86_ipi_db
2024/05/12 15:41 openbsd bae657104f70 9026e142 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-setuid uvm_fault: x86_ipi_db
2024/05/12 10:50 openbsd 73556a19205d 9026e142 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-setuid uvm_fault: x86_ipi_db
2024/05/11 17:48 openbsd 1b9599294b30 9026e142 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-setuid uvm_fault: x86_ipi_db
2024/05/10 16:00 openbsd 898e5d067977 375932ce .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: x86_ipi_db
2024/05/09 19:19 openbsd a7b9eedcb4c1 de979bc2 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-setuid uvm_fault: x86_ipi_db
2024/05/08 13:10 openbsd 8fad29a3d36d 9473be88 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-setuid uvm_fault: x86_ipi_db
2024/05/07 04:18 openbsd 21e142091427 fa7a5cf0 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-setuid uvm_fault: x86_ipi_db
2024/05/05 11:25 openbsd 5ec8126aae72 610f2a54 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-setuid uvm_fault: x86_ipi_db
2024/05/04 09:08 openbsd c604ab84837e 610f2a54 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: x86_ipi_db
2024/05/04 00:45 openbsd 22ee75e59c47 610f2a54 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-setuid uvm_fault: x86_ipi_db
2024/05/03 14:35 openbsd 5344938f422c ddfc15a1 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-setuid uvm_fault: x86_ipi_db
2024/05/01 05:08 openbsd ab0363c32c56 3ba885bc .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-setuid uvm_fault: x86_ipi_db
2024/04/30 05:43 openbsd db090b68861d f10afd69 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: x86_ipi_db
2024/04/29 08:56 openbsd b205d946bc4d 27e33c58 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: x86_ipi_db
2024/04/28 18:30 openbsd b98581f594cd 07b455f9 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-setuid uvm_fault: x86_ipi_db
2024/04/28 02:05 openbsd 4a1a463e112f 07b455f9 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-setuid uvm_fault: x86_ipi_db
2024/04/25 22:06 openbsd 8fa0fb927089 8bdc0f22 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-setuid uvm_fault: x86_ipi_db
2024/04/23 22:11 openbsd 8cc1b8fa16e2 21339d7b .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: x86_ipi_db
2024/04/23 05:26 openbsd 19e99d061340 21339d7b .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-setuid uvm_fault: x86_ipi_db
2024/04/21 03:41 openbsd a0c63bf7b3c7 af24b050 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-setuid uvm_fault: x86_ipi_db
2024/04/19 09:54 openbsd 78aef4a0e2ce af24b050 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-setuid uvm_fault: x86_ipi_db
2024/04/15 11:02 openbsd 7019ae976ad9 459f4b00 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-setuid uvm_fault: x86_ipi_db
2024/04/14 16:51 openbsd 56d65d052d3a c8349e48 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-setuid uvm_fault: x86_ipi_db
2024/04/13 03:51 openbsd 93536db294f5 c8349e48 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: x86_ipi_db
2024/04/09 22:59 openbsd 1e30b36946b4 171ec371 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-setuid uvm_fault: x86_ipi_db
2024/04/09 03:33 openbsd 7e284d508f03 f3234354 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-setuid uvm_fault: x86_ipi_db
2024/04/08 17:39 openbsd e16d075e3f83 7591ebb5 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-setuid uvm_fault: x86_ipi_db
2024/04/07 20:23 openbsd 424974cc1f1f ca620dd8 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-setuid uvm_fault: x86_ipi_db
2024/04/05 20:43 openbsd 3f7c134ffe9c ca620dd8 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-setuid uvm_fault: x86_ipi_db
2024/04/05 18:40 openbsd 3f7c134ffe9c ca620dd8 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-setuid uvm_fault: x86_ipi_db
2024/04/05 12:24 openbsd 2ee472d028ec 6ee49f2e .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-setuid uvm_fault: x86_ipi_db
2024/04/05 01:23 openbsd 2ee472d028ec 6ee49f2e .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-setuid uvm_fault: x86_ipi_db
2024/04/04 17:48 openbsd 2ee472d028ec 6ee49f2e .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-setuid uvm_fault: x86_ipi_db
2024/03/28 23:55 openbsd 2ee472d028ec 6ee49f2e .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-setuid uvm_fault: x86_ipi_db
2024/03/22 20:18 openbsd b98784e6f2e2 6ee49f2e .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-setuid uvm_fault: x86_ipi_db
2024/03/20 22:19 openbsd 110c1584e6f0 6ee49f2e .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: x86_ipi_db
2024/03/18 12:13 openbsd d1ea0a7c7de9 6ee49f2e .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: x86_ipi_db
2024/03/14 18:10 openbsd 81c0b8be580e 6ee49f2e .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-setuid uvm_fault: x86_ipi_db
2024/03/07 12:53 openbsd e9310faa4406 2b789849 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-setuid uvm_fault: x86_ipi_db
2024/02/29 08:58 openbsd e5d416df88ac 352ab904 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-setuid uvm_fault: x86_ipi_db
2022/02/19 02:28 openbsd 7831279e5843 3cd800e4 .config console log report ci-openbsd-setuid uvm_fault: x86_ipi_db
* Struck through repros no longer work on HEAD.