syzbot


uvm_fault: proc_trampoline

Status: upstream: reported on 2024/04/07 08:09
Reported-by: syzbot+f5d26bc5df263ec47ec3@syzkaller.appspotmail.com
First crash: 77d, last: 32d

Sample crash report:
uvm_fault(0xfffffd807WeffA3R0N0I0N,G :0x 8S,P L0 N,O 1T) L -O>W EeR
EDk eOrNne lT:R ApP agEeX IfauTl ta  0t
raStopped at proc_trampoline+0xc7:   movl    $0,%gs:0x680
    TID    PID    UID     PRFLAGS     PFLAGS  CPU  COMMAND
*230826  21686  32767   0x8000010          0    0  syz-executor.0
 360709  27216  32767   0x8001010  0x4080000    1  syz-executor.2
proc_trampoline() at proc_trampoline+0xc7
end of kernel
end trace frame: 0x7b7877ec2b50, count: 14
https://www.openbsd.org/ddb.html describes the minimum info required in bug
reports.  Insufficient info makes it difficult to find and fix bugs.
ddb{0}> 
ddb{0}> set $lines = 0
ddb{0}> set $maxwidth = 0
ddb{0}> show panic
*cpu1: uvm_fault(0xfffffd807eff3000, 0x8, 0, 1) -> e
ddb{0}> trace
proc_trampoline() at proc_trampoline+0xc7
end of kernel
end trace frame: 0x7b7877ec2b50, count: -1
ddb{0}> show registers
rdi                                0
rsi                                0
rbp               0xffff80003478d630
rbx                                0
rdx                                0
rcx               0xffff8000ffff7c48
rax                             0x2a
r8                0xffff80003478d560
r9                                 0
r10               0xb591f038e712274a
r11               0x6118c5ea09562d74
r12                                0
r13                                0
r14                                0
r15                                0
rip               0xffffffff811a04c7    proc_trampoline+0xc7
cs                               0x8
rflags                         0x246
rsp               0xffff80003478d5b0
ss                                 0
proc_trampoline+0xc7:   movl    $0,%gs:0x680
ddb{0}> show proc
PROC (syz-executor.0) tid=230826 pid=21686 tcnt=1 stat=onproc
    flags process=8000010<SUGID> proc=0
    runpri=84, usrpri=84, slppri=17, nice=20
    wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0
    forw=0xffffffffffffffff, list=0xffff80002cef9c60,0xffffffff82e9cda0
    process=0xffff80003296d678 user=0xffff800034788000, vmspace=0xfffffd807eff36e0
    estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0
ddb{0}> ps
   PID     TID   PPID    UID  S       FLAGS  WAIT          COMMAND
*21686  230826  67294  32767  7   0x8000010                syz-executor.0
 27216  360709  89177  32767  7   0xc081010                syz-executor.2
 27216  273884  89177  32767  3   0xc003010  suspend       syz-executor.2
 51371  101031  40305  32767  3   0x8000090  nanoslp       syz-executor.7
 51371   66551  40305  32767  3   0xc000090  ttyout        syz-executor.7
 51371  144845  40305  32767  3   0xc000090  fsleep        syz-executor.7
 87341  461447  89438  32767  3   0x8000090  nanoslp       syz-executor.3
 87341  280681  89438  32767  3   0xc000090  fifor         syz-executor.3
 87341  396177  89438  32767  3   0xc000090  fifor         syz-executor.3
 87341  377455  89438  32767  3   0xc000090  fifor         syz-executor.3
 87341  225419  89438  32767  3   0xc000090  fsleep        syz-executor.3
 17620  245037  76209  32767  3   0x8000090  piperd        syz-executor.6
 76209  384980  78858      0  3   0x8000082  wait          syz-executor.6
 40305  365601  30617  32767  3   0x8000090  nanoslp       syz-executor.7
 30617  232565  78858      0  3   0x8000082  wait          syz-executor.7
 67294  346837  48949  32767  3   0x8000090  nanoslp       syz-executor.0
 48949  267153  78858      0  3   0x8000082  wait          syz-executor.0
 77506  400069  76726  32767  2   0x8000010                syz-executor.1
 76726   35656  78858      0  3   0x8000082  wait          syz-executor.1
 34778   76459  94005  32767  2   0x8000010                syz-executor.5
 94005   45900  78858      0  3   0x8000082  wait          syz-executor.5
 89177  125510  37602  32767  3   0x8000090  nanoslp       syz-executor.2
 37602  385431  78858      0  3   0x8000082  wait          syz-executor.2
 62727  154593      0      0  3     0x14200  bored         sosplice
 89438  254968      1  32767  3   0x8000090  nanoslp       syz-executor.3
 55866  260719      1  32767  3   0x8000090  piperd        syz-executor.4
 78858  368287  97804      0  3  0x1a000082  thrsleep      syz-fuzzer
 78858   29860  97804      0  3  0x1e000082  nanoslp       syz-fuzzer
 78858   99366  97804      0  3  0x1e000082  wait          syz-fuzzer
 78858  121964  97804      0  3  0x1e000082  thrsleep      syz-fuzzer
 78858  226686  97804      0  3  0x1e000082  wait          syz-fuzzer
 78858   88641  97804      0  3  0x1e000082  wait          syz-fuzzer
 78858  433184  97804      0  3  0x1e000082  wait          syz-fuzzer
 78858  108886  97804      0  3  0x1e000082  kqread        syz-fuzzer
 78858   17293  97804      0  3  0x1e000082  wait          syz-fuzzer
 78858  182563  97804      0  3  0x1e000082  wait          syz-fuzzer
 78858  443562  97804      0  3  0x1e000082  thrsleep      syz-fuzzer
 78858  383790  97804      0  3  0x1e000082  thrsleep      syz-fuzzer
 78858    9678  97804      0  3  0x1e000082  thrsleep      syz-fuzzer
 78858  365666  97804      0  3  0x1e000082  thrsleep      syz-fuzzer
 78858  425315  97804      0  3  0x1e000082  thrsleep      syz-fuzzer
 97804  382836  20241      0  3   0x810008a  sigsusp       ksh
 20241  227021  21467      0  3  0x1800009a  kqread        sshd
 98662  501253      1      0  3  0x18100083  ttyin         getty
 21467  285646      1      0  3  0x18000088  kqread        sshd
  6534   68172  11026     73  3  0x19100090  kqread        syslogd
 11026  495049      1      0  3  0x18100082  sbwait        syslogd
 34085   41994      1      0  3  0x18100080  kqread        resolvd
 18188  143262  70934     77  3  0x18100092  kqread        dhcpleased
 90278  291212  70934     77  3  0x18100092  kqread        dhcpleased
 70934  156675      1      0  3  0x18000080  kqread        dhcpleased
 19492  389803      0      0  3     0x14200  bored         smr
 16951  297220      0      0  3     0x14200  pgzero        zerothread
 76416  389905      0      0  3     0x14200  aiodoned      aiodoned
 59845  313156      0      0  3     0x14200  syncer        update
 73362  125738      0      0  3     0x14200  cleaner       cleaner
 70508  154148      0      0  2     0x14200                reaper
 34804    1324      0      0  3     0x14200  pgdaemon      pagedaemon
 76628  411169      0      0  3     0x14200  bored         viomb
 98610  282623      0      0  3  0x40014200  acpi0         acpi0
 42316  212234      0      0  3  0x40014200                idle1
 64370  179000      0      0  3     0x14200  bored         softnet3
 67704  454685      0      0  3     0x14200  bored         softnet2
 39018  497485      0      0  3     0x14200  bored         softnet1
 78054  372657      0      0  3     0x14200  bored         softnet0
 49213  463676      0      0  3     0x14200  bored         systqmp
 36478  303178      0      0  3     0x14200  bored         systq
 95018  114459      0      0  3     0x14200  tmoslp        softclockmp
 50365  300026      0      0  3  0x40014200  tmoslp        softclock
 26181  164471      0      0  3  0x40014200                idle0
     1  151330      0      0  3   0x8000082  wait          init
     0       0     -1      0  3     0x10200  scheduler     swapper
ddb{0}> show all locks
CPU 0:
exclusive mutex &pmap->pm_mtx r = 0 (0xfffffd806aa9dbb0)
#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  pmap_enter+0x1c6 rcr3 machine/cpufunc.h:139 [inline]
#3  pmap_enter+0x1c6 pmap_map_ptes sys/arch/amd64/amd64/pmap.c:425 [inline]
#3  pmap_enter+0x1c6 sys/arch/amd64/amd64/pmap.c:2716
#4  uvm_fault_lower_lookup+0x29b sys/uvm/uvm_fault.c:1192
#5  uvm_fault_lower+0x62 sys/uvm/uvm_fault.c:1227
#6  uvm_fault+0x255 sys/uvm/uvm_fault.c:637
#7  upageflttrap+0x8e sys/arch/amd64/amd64/trap.c:188
#8  usertrap+0x22a sys/arch/amd64/amd64/trap.c:436
#9  recall_trap+0x8
Process 21686 (syz-executor.0) thread 0xffff8000ffff7c48 (230826)
exclusive rwlock uobjlk r = 0 (0xfffffd806d67b1d8)
#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 (0xfffffd807eff37d0)
#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 &pmap->pm_mtx r = 0 (0xfffffd806aa9dbb0)
#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  pmap_enter+0x1c6 rcr3 machine/cpufunc.h:139 [inline]
#3  pmap_enter+0x1c6 pmap_map_ptes sys/arch/amd64/amd64/pmap.c:425 [inline]
#3  pmap_enter+0x1c6 sys/arch/amd64/amd64/pmap.c:2716
#4  uvm_fault_lower_lookup+0x29b sys/uvm/uvm_fault.c:1192
#5  uvm_fault_lower+0x62 sys/uvm/uvm_fault.c:1227
#6  uvm_fault+0x255 sys/uvm/uvm_fault.c:637
#7  upageflttrap+0x8e sys/arch/amd64/amd64/trap.c:188
#8  usertrap+0x22a sys/arch/amd64/amd64/trap.c:436
#9  recall_trap+0x8
Process 27216 (syz-executor.2) thread 0xffff80002cef82c0 (360709)
exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82dc3838)
#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  VOP_BWRITE+0x4e sys/kern/vfs_vops.c:646
#7  ufs_direnter+0x60e sys/ufs/ufs/ufs_lookup.c:833
#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:1810
#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 (0xfffffd806ac4ef78)
#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:1810
#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 77506 (syz-executor.1) thread 0xffff80002a2047d0 (400069)
exclusive rrwlock inode r = 0 (0xfffffd806ac4e4d8)
#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:1856
#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 (0xfffffd80636950a8)
#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:1856
#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 34778 (syz-executor.5) thread 0xffff8000ffff79b8 (76459)
exclusive rrwlock inode r = 0 (0xfffffd806ac4e3c8)
#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:3104
#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 (0xfffffd806e479a30)
#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:3089
#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
ddb{0}> show malloc
           Type InUse  MemUse  HighUse   Limit  Requests Type Lim
         devbuf 10203   6411K    6419K 166960K     11321        0
            pcb    17     12K      12K 166960K        17        0
         rtable   246      7K       7K 166960K       882        0
             pf    29      8K       8K 166960K        55        0
         ifaddr    44     15K      15K 166960K       100        0
        ifgroup    50      2K       2K 166960K       102        0
         sysctl     4      1K       1K 166960K         4        0
       counters    64     36K      36K 166960K        90        0
       ioctlops     0      0K       2K 166960K        77        0
            iov     0      0K      16K 166960K       114        0
          mount     1      1K       1K 166960K         1        0
            log     0      0K       0K 166960K         4        0
         vnodes  1377     87K      87K 166960K      1700        0
      UFS quota     1     32K      32K 166960K         1        0
      UFS mount     5     36K      36K 166960K         5        0
            shm     2      1K       5K 166960K        48        0
         VM map     2      1K       1K 166960K         2        0
            sem    12      0K       1K 166960K       220        0
        dirhash    12      2K       3K 166960K       102        0
           ACPI  1697    195K     286K 166960K     12548        0
      file desc    20     73K     117K 166960K      1907        0
          sigio     0      0K       0K 166960K        42        0
           proc    56     78K     115K 166960K       978        0
        subproc   104      6K       7K 166960K       273        0
    NFS srvsock     1      0K       0K 166960K         1        0
     NFS daemon     1     16K      16K 166960K         1        0
    ip_moptions     0      0K       0K 166960K       549        0
       in_multi    99      7K       7K 166960K       342        0
    ether_multi     1      0K       0K 166960K        13        0
            mrt     2      0K       0K 166960K         2        0
    ISOFS mount     1     32K      32K 166960K         1        0
  MSDOSFS mount     1     16K      16K 166960K         1        0
           ttys   217    970K     970K 166960K       217        0
           exec     0      0K       1K 166960K       676        0
            tdb     3      0K       0K 166960K         3        0
        VM swap     8     62K      64K 166960K        10        0
       UVM amap   282     75K      94K 166960K     18872        0
       UVM aobj    91      5K       7K 166960K       103        0
     pinsyscall    40     80K     106K 166960K      3383        0
        memdesc     1      4K       4K 166960K         1        0
    crypto data     1      1K       1K 166960K         1        0
    ip6_options     0      0K       0K 166960K       133        0
            NDP    13      0K       1K 166960K        66        0
           temp    75   6820K    6948K 166960K      9531        0
         kqueue    13     20K      26K 166960K       312        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      308    0      305     1     0     1     1     0     8    0
rtentry    112      289    0      173     4     0     4     4     0     8    0
unpcb      144     1573    0     1558     3     2     1     2     0     8    0
syncache   336       22    0       22    11    11     0     1     0     8    0
sackhl      24        3    0        3     3     3     0     1     0     8    0
tcpqe       32       60    0       60     3     3     0     1     0     8    0
tcpcb      808     1120    0     1113    25    23     2     8     0     8    1
arp        120       47    0       29     1     0     1     1     0     8    0
ipq         40       11    0        9     1     0     1     1     0     8    0
ipqe        40       20    0       18     1     0     1     1     0     8    0
inpcb      384     2507    0     2495    27    24     3     9     0     8    1
nd6        136       95    0       65     2     0     2     2     0     8    0
kcovpl      48       21    0       13     1     0     1     1     0     8    0
art_heap8  4096       1    0        0     1     0     1     1     0     8    0
art_heap4  256     1274    0      792    40     9    31    32     0     8    0
art_table   32     1275    0      792     5     0     5     5     0     8    0
art_node    16      288    0      182     1     0     1     1     0     8    0
sysvmsgpl   40       24    0       13     1     0     1     1     0     8    0
semupl     112        2    0        2     2     2     0     1     0     8    0
semapl     112      215    0      205     1     0     1     1     0     8    0
shmpl      112      100    0       12     3     0     3     3     0     8    0
dirhash    1024      77    0       60     3     0     3     3     0     8    0
dino2pl    256     4168    0     2637    97     0    97    97     0     8    0
ffsino     272     4168    0     2637   103     0   103   103     0     8    0
nchpl      144     6887    0     5161    66     0    66    66     0     8    0
uvmvnodes   80     4450    0        0    91     0    91    91     0     8    0
vnodes     216     4450    0        0   248     0   248   248     0     8    0
namei      1024   24556    0    24554     8     6     2     2     0     8    0
percpumem   16       59    0       13     1     0     1     1     0     8    0
kstatmem   264       48    0       26     2     0     2     2     0     8    0
scxspl     216    65560    0    65560    30    27     3     8     1     8    3
plimitpl   152      522    0      499     6     5     1     2     0     8    0
sigapl     424     2179    0     2129     7     0     7     7     0     8    0
futexpl     64    29398    0    29396     8     7     1     1     0     8    0
knotepl    120      889    0        0    18     0    18    18     0     8    0
kqueuepl   216      602    0      592     2     1     1     2     0     8    0
pipepl     320      475    0      446     9     6     3     8     0     8    0
fdescpl    496     2160    0     2129     7     2     5     6     0     8    0
filepl     152    13810    0    13558    23    12    11    15     0     8    0
lockfpl    104      443    0      441     1     0     1     1     0     8    0
lockfspl    48      175    0      173     1     0     1     1     0     8    0
sessionpl  144       36    0       20     1     0     1     1     0     8    0
pgrppl      48       82    0       66     1     0     1     1     0     8    0
ucredpl    104     2673    0     2655     1     0     1     1     0     8    0
zombiepl   144     2130    0     2129     1     0     1     1     0     8    0
processpl  1144    2179    0     2129     5     0     5     5     0     8    0
procpl     656     4255    0     4182    10     2     8     8     0     8    1
sosppl     168       22    0       22     9     8     1     1     0     8    1
sockpl     664     4442    0     4412    38    33     5     9     0     8    1
mcl64k     65536     11    0        0     2     0     2     2     0     8    0
mcl16k     16384      3    0        0     1     0     1     1     0     8    0
mcl12k     12288      3    0        0     1     0     1     1     0     8    0
mcl9k      9216       2    0        0     1     0     1     1     0     8    0
mcl8k      8192       6    0        0     1     0     1     1     0     8    0
mcl4k      4096       2    0        0     1     0     1     1     0     8    0
mcl2k2     2112       1    0        0     1     0     1     1     0     8    0
mcl2k      2048     376    0        0    41     2    39    41     0     8    0
mtagpl      96        4    0        0     1     0     1     1     0     8    0
mbufpl     256     1326    0        0    66     0    66    66     0     8    0
bufpl      280    12005    0     3257   625     0   625   625     0     8    0
anonpl      24   475284    0   469170   140    60    80    91     0   186   11
amapchunkpl 152   68150    0    67468    84    38    46    51     0   158   11
amappl16   200     9839    0     9706    80    63    17    24     0     8    7
amappl15   192       11    0       11     2     2     0     1     0     8    0
amappl14   184      196    0      185     2     1     1     2     0     8    0
amappl13   176       84    0       83     1     0     1     1     0     8    0
amappl12   168     3001    0     2968     2     0     2     2     0     8    0
amappl11   160       81    0       71     1     0     1     1     0     8    0
amappl10   152       96    0       83     1     0     1     1     0     8    0
amappl9    144      189    0      188     1     0     1     1     0     8    0
amappl8    136      193    0      157     2     0     2     2     0     8    0
amappl7    128       53    0       39     1     0     1     1     0     8    0
amappl6    120      509    0      495     2     1     1     2     0     8    0
amappl5    112      213    0      201     1     0     1     1     0     8    0
amappl4    104      621    0      589     2     1     1     2     0     8    0
amappl3     96    12075    0    11996     3     0     3     3     0     8    0
amappl2     88     2609    0     2537     4     2     2     4     0     8    0
amappl1     80    15782    0    15281    24    12    12    22     0     8    0
amappl      88    17986    0    17786     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      102    0       12     2     0     2     2     0     8    0
uaddrrnd    24     2160    0     2129     1     0     1     1     0     8    0
uaddrbest   32        2    0        0     1     0     1     1     0     8    0
uaddr       24     2160    0     2129     1     0     1     1     0     8    0
vmmpekpl   168    19056    0    18995     4     0     4     4     0     8    0
vmmpepl    168   149893    0   147947   177    73   104   116     0   357   10
vmsppl     440     2159    0     2129     5     1     4     5     0     8    0
rwobjpl     56    46368    0    40759    93    13    80    80     0     8    0
pdppl      4096    4327    0     4258   182   103    79    91     0     8   10
pvpl        32    46954    0        0   380     1   379   379     0   265    0
pmappl     248     2159    0     2129     4     1     3     3     0     8    0
extentpl    40       56    0       38     1     0     1     1     0     8    0
phpool     112      585    0      156    13     0    13    13     0     8    0
ddb{0}> machine ddbcpu 0
Invalid cpu 0
ddb{0}> trace
proc_trampoline() at proc_trampoline+0xc7
end of kernel
end trace frame: 0x7b7877ec2b50, count: -1
ddb{0}> machine ddbcpu 1
Stopped at      x86_ipi_db+0x1e:        addq    $0x8,%rsp
x86_ipi_db(ffff800029cebff0) 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_write_1(3f8,0,61) at x86_bus_space_io_write_1+0x37 sys/arch/amd64/amd64/bus_space.c:774
comcnputc(800,61) at comcnputc+0x12a bus_space_barrier machine/bus.h:481 [inline]
comcnputc(800,61) at comcnputc+0x12a sys/dev/ic/com.c:1263
cnputc(61) at cnputc+0x4f sys/dev/cons.c:218
db_putchar(61) at db_putchar+0x3eb sys/ddb/db_output.c:155
kprintf() at kprintf+0x69a
db_printf(ffffffff8292c911) at db_printf+0x89 sys/kern/subr_prf.c:498
db_ktrap(6,0,ffff80002a25a500) at db_ktrap+0x12c sys/arch/amd64/amd64/db_interface.c:128
kerntrap(ffff80002a25a500) at kerntrap+0x142 sys/arch/amd64/amd64/trap.c:323
alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b
fifo_write(ffff80002a25a5f0) at fifo_write+0x4f sys/miscfs/fifofs/fifo_vnops.c:273
VOP_WRITE(fffffd8053bb4648,ffff80002a25a688,8,fffffd807f7d34e0) at VOP_WRITE+0xc3 sys/kern/vfs_vops.c:245
end trace frame: 0xffff80002a25a720, count: 0
ddb{1}> trace
x86_ipi_db(ffff800029cebff0) 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_write_1(3f8,0,61) at x86_bus_space_io_write_1+0x37 sys/arch/amd64/amd64/bus_space.c:774
comcnputc(800,61) at comcnputc+0x12a bus_space_barrier machine/bus.h:481 [inline]
comcnputc(800,61) at comcnputc+0x12a sys/dev/ic/com.c:1263
cnputc(61) at cnputc+0x4f sys/dev/cons.c:218
db_putchar(61) at db_putchar+0x3eb sys/ddb/db_output.c:155
kprintf() at kprintf+0x69a
db_printf(ffffffff8292c911) at db_printf+0x89 sys/kern/subr_prf.c:498
db_ktrap(6,0,ffff80002a25a500) at db_ktrap+0x12c sys/arch/amd64/amd64/db_interface.c:128
kerntrap(ffff80002a25a500) at kerntrap+0x142 sys/arch/amd64/amd64/trap.c:323
alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b
fifo_write(ffff80002a25a5f0) at fifo_write+0x4f sys/miscfs/fifofs/fifo_vnops.c:273
VOP_WRITE(fffffd8053bb4648,ffff80002a25a688,8,fffffd807f7d34e0) at VOP_WRITE+0xc3 sys/kern/vfs_vops.c:245
vn_rdwr(1,fffffd8053bb4648,ffff80002a156000,fe,0,1,e786e0e6d56f5ae4,ffff80002a25a7b0,fffffd8053bb4648,78) at vn_rdwr+0xee sys/kern/vfs_vnops.c:324
ufs_symlink(ffff80002a25a7b0) at ufs_symlink+0x175 sys/ufs/ufs/ufs_vnops.c:1309
VOP_SYMLINK(fffffd8053bb4570,ffff80002a25a930,ffff80002a25a960,ffff80002a25a860,ffff80002a156000) at VOP_SYMLINK+0xd7 sys/kern/vfs_vops.c:432
dosymlinkat(ffff80002cef82c0,20000800,8,200002c0) at dosymlinkat+0x158 sys/kern/vfs_syscalls.c:1810
syscall(ffff80002a25aae0) at syscall+0x854 mi_syscall sys/sys/syscall_mi.h:180 [inline]
syscall(ffff80002a25aae0) at syscall+0x854 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xc1d5ef5a5f0, count: -20

Crashes (3):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/05/22 11:58 openbsd 6859a790d2a4 4d098039 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-setuid uvm_fault: proc_trampoline
2024/04/18 19:28 openbsd 3ed32226cff5 af24b050 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: proc_trampoline
2024/04/07 08:08 openbsd 85fbf21ae5ae ca620dd8 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: proc_trampoline
* Struck through repros no longer work on HEAD.