syzbot


assert "!_kernel_lock_held()" failed in uvm_map.c (2)

Status: fixed on 2023/10/30 23:05
Reported-by: syzbot+169110a0815838ab5940@syzkaller.appspotmail.com
Fix commit: 6d6c8141fa4d Adjust KERNEL_ASSERT_UNLOCKED() to not assert during a panic.
First crash: 402d, last: 184d
Similar bugs (1)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
openbsd assert "!_kernel_lock_held()" failed in uvm_map.c 6 492d 653d 0/3 auto-obsoleted due to no activity on 2023/02/20 01:52

Sample crash report:
ppanic: kernel diagnostic assertion "!_kernel_lock_held()" failed: file "/syzkaller/managers/setuid/kernel/sys/uvm/uvm_map.c", line 2526
Stopped at      db_enter+0x1c:  addq    $0x8,%rsp
    TID    PID    UID     PRFLAGS     PFLAGS  CPU  COMMAND
 322375  30423  32767        0x10          0    0  syz-executor.4
* 61795  96354      0     0x14000      0x200    1  reaper
db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff8279fd90) at panic+0x17b sys/kern/subr_prf.c:198
__assert(ffffffff8281fcb3,ffffffff8284a55d,9de,ffffffff827d8a93) at __assert+0x29 sys/kern/subr_prf.c:157
uvm_map_teardown(fffffd80687f73c8) at uvm_map_teardown+0x348 sys/uvm/uvm_map.c:2528
uvmspace_free(fffffd80687f73c8) at uvmspace_free+0xa6 sys/uvm/uvm_map.c:3503
reaper(ffff8000211a3a98) at reaper+0x19a sys/kern/kern_exit.c:458
end trace frame: 0x0, count: 9
https://www.openbsd.org/ddb.html describes the minimum info required in bug
reports.  Insufficient info makes it difficult to find and fix bugs.
ddb{1}> 
ddb{1}> set $lines = 0
ddb{1}> set $maxwidth = 0
ddb{1}> show panic
*cpu0: vop_generic_badop
 cpu1: kernel diagnostic assertion "!_kernel_lock_held()" failed: file "/syzkaller/managers/setuid/kernel/sys/uvm/uvm_map.c", line 2526
ddb{1}> trace
db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff8279fd90) at panic+0x17b sys/kern/subr_prf.c:198
__assert(ffffffff8281fcb3,ffffffff8284a55d,9de,ffffffff827d8a93) at __assert+0x29 sys/kern/subr_prf.c:157
uvm_map_teardown(fffffd80687f73c8) at uvm_map_teardown+0x348 sys/uvm/uvm_map.c:2528
uvmspace_free(fffffd80687f73c8) at uvmspace_free+0xa6 sys/uvm/uvm_map.c:3503
reaper(ffff8000211a3a98) at reaper+0x19a sys/kern/kern_exit.c:458
end trace frame: 0x0, count: -6
ddb{1}> show registers
rdi                                0
rsi                              0x1
rbp               0xffff8000211a9760
rbx               0xffff800020d49ba7
rdx                                0
rcx               0xffff8000211a3a98
rax               0xffff800020d48ff0
r8                 0x101010101010101
r9                0x8080808080808080
r10               0xc52b75a34d3c016c
r11               0x3c309c42d969142f
r12               0xffff800020d499a8
r13                                0
r14               0xffffffff82bc59a8    cpu_info_full_primary+0x29a8
r15                              0x1
rip               0xffffffff81bc81ec    db_enter+0x1c
cs                               0x8
rflags                         0x246
rsp               0xffff8000211a9750
ss                              0x10
db_enter+0x1c:  addq    $0x8,%rsp
ddb{1}> show proc
PROC (reaper) tid=61795 pid=96354 tcnt=1 stat=onproc
    flags process=14000<NOZOMBIE,SYSTEM> proc=200<SYSTEM>
    runpri=4, usrpri=53, slppri=4, nice=20
    wchan=0x0, wmesg=, ps_single=0x0
    forw=0xffffffffffffffff, list=0xffff8000211a3d40,0xffff8000211a3800
    process=0xffff8000ffffee10 user=0xffff8000211a4000, vmspace=0xffffffff82cc3bf0
    estcpu=3, cpticks=3, pctcpu=0.75, user=0, sys=1, intr=0
ddb{1}> ps
   PID     TID   PPID    UID  S       FLAGS  WAIT          COMMAND
 26792  142854  51691  32767  2        0x10                syz-executor.1
 26792  254711  51691  32767  3   0x4000090  fsleep        syz-executor.1
 80204  325352   5569  32767  2        0x10                syz-executor.7
 80204  436735   5569  32767  3   0x4000090  fsleep        syz-executor.7
 31454  249091   3441  32767  2        0x10                syz-executor.2
 31454  421144   3441  32767  2   0x4000010                syz-executor.2
 31454   33757   3441  32767  3   0x4000090  fsleep        syz-executor.2
  3510  388465  33364  32767  2        0x10                syz-executor.0
  3510  231134  33364  32767  3   0x4000090  fsleep        syz-executor.0
 51691  348419  86251  32767  3        0x90  nanoslp       syz-executor.1
 86251  335437  93324      0  3        0x82  wait          syz-executor.1
 56399   20305  85761  32767  3        0x90  nanoslp       syz-executor.5
 85761   37067  93324      0  3        0x82  wait          syz-executor.5
 96838  118100  44485  32767  3        0x10  biowait       syz-executor.6
 44485  305587  93324      0  3        0x82  wait          syz-executor.6
  5569  384438  12658  32767  3        0x90  nanoslp       syz-executor.7
 12658  332343  93324      0  3        0x82  wait          syz-executor.7
 75909  393296      0      0  3     0x14200  bored         sosplice
 49275  375881  47025  32767  3        0x10  biowait       syz-executor.3
  3441  392348  83335  32767  3        0x90  nanoslp       syz-executor.2
 30423  322375  38133  32767  7        0x10                syz-executor.4
 38133  122710  93324      0  3        0x82  wait          syz-executor.4
 47025  154022  93324      0  3        0x82  wait          syz-executor.3
 83335   96501  93324      0  3        0x82  wait          syz-executor.2
 33364   73359  41685  32767  3        0x90  nanoslp       syz-executor.0
 41685  257716  93324      0  3        0x82  wait          syz-executor.0
 93324  310094  16831      0  3   0x2000082  thrsleep      syz-fuzzer
 93324   83617  16831      0  3   0x6000082  thrsleep      syz-fuzzer
 93324  300532  16831      0  3   0x6000082  thrsleep      syz-fuzzer
 93324  184226  16831      0  3   0x6000082  thrsleep      syz-fuzzer
 93324  165793  16831      0  3   0x6000082  wait          syz-fuzzer
 93324  403243  16831      0  3   0x6000082  wait          syz-fuzzer
 93324  294479  16831      0  3   0x6000082  wait          syz-fuzzer
 93324  343291  16831      0  3   0x6000082  wait          syz-fuzzer
 93324  506319  16831      0  3   0x6000082  wait          syz-fuzzer
 93324  503892  16831      0  3   0x6000082  thrsleep      syz-fuzzer
 93324  324452  16831      0  3   0x6000082  thrsleep      syz-fuzzer
 93324  376540  16831      0  3   0x6000082  wait          syz-fuzzer
 93324  158097  16831      0  3   0x6000082  thrsleep      syz-fuzzer
 93324  458596  16831      0  3   0x6000082  wait          syz-fuzzer
 93324  346711  16831      0  3   0x6000082  wait          syz-fuzzer
 93324  346086  16831      0  3   0x6000082  kqread        syz-fuzzer
 16831  102131  31910      0  3    0x10008a  sigsusp       ksh
 31910  447238  11566      0  3        0x9a  kqread        sshd
 89697  467036      1      0  3    0x100083  ttyin         getty
 11566  130778      1      0  3        0x88  kqread        sshd
 31874  284761  38653     73  3   0x1100090  kqread        syslogd
 38653   98843      1      0  3    0x100082  netio         syslogd
 90990  401779      1      0  3    0x100080  kqread        resolvd
 86141  463644  66591     77  3    0x100092  kqread        dhcpleased
 16872  187407  66591     77  3    0x100092  kqread        dhcpleased
 66591    8155      1      0  3        0x80  kqread        dhcpleased
 18561   79053      0      0  3     0x14200  bored         smr
 31498  102932      0      0  2     0x14200                zerothread
 66223  378516      0      0  3     0x14200  aiodoned      aiodoned
 81608  408687      0      0  3     0x14200  syncer        update
 43443  379394      0      0  3     0x14200  cleaner       cleaner
*96354   61795      0      0  7     0x14200                reaper
  1104   99693      0      0  3     0x14200  pgdaemon      pagedaemon
 13479   91535      0      0  3     0x14200  bored         viomb
 72537  170801      0      0  3  0x40014200  acpi0         acpi0
 58323  349195      0      0  3  0x40014200                idle1
 11906  304530      0      0  3     0x14200  bored         softnet3
  3358  150907      0      0  3     0x14200  bored         softnet2
 25342  481222      0      0  3     0x14200  bored         softnet1
 39049  358722      0      0  3     0x14200  bored         softnet0
 73481  137119      0      0  3     0x14200  bored         systqmp
 78424  377660      0      0  3     0x14200  bored         systq
   149  297174      0      0  3  0x40014200  bored         softclock
 41783  385543      0      0  3  0x40014200                idle0
     1  289022      0      0  3        0x82  wait          init
     0       0     -1      0  3     0x10200  scheduler     swapper
ddb{1}> show all locks
CPU 1:
exclusive sched_lock &sched_lock r = 0 (0xffffffff82cafcb0)
#0  witness_lock+0x447
#1  wakeup_n+0x37 sys/kern/kern_synch.c:541
#2  sched_idle+0x232 sys/kern/kern_sched.c:179
#3  proc_trampoline+0x1c
Process 96838 (syz-executor.6) thread 0xffff8000211e4ab8 (118100)
exclusive rrwlock inode r = 0 (0xfffffd807cbd6e70)
#0  witness_lock+0x447
#1  rw_enter+0x3c8 sys/kern/kern_rwlock.c:309
#2  rrw_enter+0x8c sys/kern/kern_rwlock.c:464
#3  VOP_LOCK+0x8b sys/kern/vfs_vops.c:518
#4  vn_lock+0x84 sys/kern/vfs_vnops.c:564
#5  vget+0x200 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:1314
#8  ufs_lookup+0x13ba sys/ufs/ufs/ufs_lookup.c:487
#9  VOP_LOOKUP+0x5c sys/kern/vfs_vops.c:85
#10 vfs_lookup+0x6e2 sys/kern/vfs_lookup.c:566
#11 namei+0x55a sys/kern/vfs_lookup.c:250
#12 dounlinkat+0x9d sys/kern/vfs_syscalls.c:1847
#13 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
#13 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623
#14 Xsyscall+0x128
exclusive rrwlock inode r = 0 (0xfffffd8066355818)
#0  witness_lock+0x447
#1  rw_enter+0x3c8 sys/kern/kern_rwlock.c:309
#2  rrw_enter+0x8c sys/kern/kern_rwlock.c:464
#3  VOP_LOCK+0x8b sys/kern/vfs_vops.c:518
#4  vn_lock+0x84 sys/kern/vfs_vnops.c:564
#5  vfs_lookup+0xd5 sys/kern/vfs_lookup.c:418
#6  namei+0x55a sys/kern/vfs_lookup.c:250
#7  dounlinkat+0x9d sys/kern/vfs_syscalls.c:1847
#8  syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
#8  syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623
#9  Xsyscall+0x128
Process 49275 (syz-executor.3) thread 0xffff8000211e5aa8 (375881)
exclusive rrwlock inode r = 0 (0xfffffd807cbd61b0)
#0  witness_lock+0x447
#1  rw_enter+0x3c8 sys/kern/kern_rwlock.c:309
#2  rrw_enter+0x8c sys/kern/kern_rwlock.c:464
#3  VOP_LOCK+0x8b sys/kern/vfs_vops.c:518
#4  ufs_ihashins+0x46 sys/ufs/ufs/ufs_ihash.c:140
#5  ffs_vget+0x141 sys/ufs/ffs/ffs_vfsops.c:1343
#6  ffs_inode_alloc+0x1c2 sys/ufs/ffs/ffs_alloc.c:394
#7  ufs_mkdir+0xf8 sys/ufs/ufs/ufs_vnops.c:1149
#8  VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388
#9  domkdirat+0x125 sys/kern/vfs_syscalls.c:3073
#10 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
#10 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623
#11 Xsyscall+0x128
exclusive rrwlock inode r = 0 (0xfffffd807d2d74e0)
#0  witness_lock+0x447
#1  rw_enter+0x3c8 sys/kern/kern_rwlock.c:309
#2  rrw_enter+0x8c sys/kern/kern_rwlock.c:464
#3  VOP_LOCK+0x8b sys/kern/vfs_vops.c:518
#4  vn_lock+0x84 sys/kern/vfs_vnops.c:564
#5  vfs_lookup+0xd5 sys/kern/vfs_lookup.c:418
#6  namei+0x55a sys/kern/vfs_lookup.c:250
#7  domkdirat+0x79 sys/kern/vfs_syscalls.c:3058
#8  syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
#8  syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623
#9  Xsyscall+0x128
Process 30423 (syz-executor.4) thread 0xffff80002120b2b8 (322375)
exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82c6c140)
#0  witness_lock+0x447
#1  __mp_acquire_count+0x48 sys/kern/kern_lock.c:227
#2  mi_switch+0x46b sys/kern/sched_bsd.c:470
#3  sleep_finish+0x19b sys/kern/kern_synch.c:414
#4  biowait+0x91 sys/kern/vfs_bio.c:1278
#5  bwrite+0x21c sys/kern/vfs_bio.c:769
#6  ffs_update+0x281 sys/ufs/ffs/ffs_inode.c:113
#7  ufs_mkdir+0x672 sys/ufs/ufs/ufs_vnops.c:1219
#8  VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388
#9  domkdirat+0x125 sys/kern/vfs_syscalls.c:3073
#10 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
#10 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623
#11 Xsyscall+0x128
exclusive rrwlock inode r = 0 (0xfffffd807cbd6700)
#0  witness_lock+0x447
#1  rw_enter+0x3c8 sys/kern/kern_rwlock.c:309
#2  rrw_enter+0x8c sys/kern/kern_rwlock.c:464
#3  VOP_LOCK+0x8b sys/kern/vfs_vops.c:518
#4  vn_lock+0x84 sys/kern/vfs_vnops.c:564
#5  vget+0x200 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:1314
#8  ffs_inode_alloc+0x1c2 sys/ufs/ffs/ffs_alloc.c:394
#9  ufs_mkdir+0xf8 sys/ufs/ufs/ufs_vnops.c:1149
#10 VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388
#11 domkdirat+0x125 sys/kern/vfs_syscalls.c:3073
#12 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
#12 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623
#13 Xsyscall+0x128
exclusive rrwlock inode r = 0 (0xfffffd807d2d70a0)
#0  witness_lock+0x447
#1  rw_enter+0x3c8 sys/kern/kern_rwlock.c:309
#2  rrw_enter+0x8c sys/kern/kern_rwlock.c:464
#3  VOP_LOCK+0x8b sys/kern/vfs_vops.c:518
#4  vn_lock+0x84 sys/kern/vfs_vnops.c:564
#5  vfs_lookup+0xd5 sys/kern/vfs_lookup.c:418
#6  namei+0x55a sys/kern/vfs_lookup.c:250
#7  domkdirat+0x79 sys/kern/vfs_syscalls.c:3058
#8  syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
#8  syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623
#9  Xsyscall+0x128
ddb{1}> show malloc
           Type InUse  MemUse  HighUse   Limit  Requests Type Lim
         devbuf 10208   6411K    6420K  78643K     11308        0
            pcb    13     16K      18K  78643K        19        0
         rtable   238      6K       7K  78643K      1022        0
             pf    29      8K       8K  78643K        43        0
         ifaddr    44     15K      15K  78643K        76        0
        ifgroup    50      2K       2K  78643K        78        0
         sysctl     3      1K       1K  78643K         3        0
       counters    60     35K      35K  78643K        74        0
       ioctlops     0      0K       2K  78643K       325        0
            iov     0      0K      16K  78643K       407        0
          mount     1      1K       1K  78643K         1        0
            log     0      0K       0K  78643K         4        0
         vnodes  1279     80K      80K  78643K      2333        0
      UFS quota     1     32K      32K  78643K         1        0
      UFS mount     5     36K      36K  78643K         5        0
            shm     2      1K       9K  78643K       732        0
         VM map     2      1K       1K  78643K         2        0
            sem    12      1K       1K  78643K        13        0
        dirhash    12      2K       2K  78643K        12        0
           ACPI  1697    195K     286K  78643K     12548        0
      file desc    22     81K     121K  78643K      7415        0
          sigio     0      0K       0K  78643K      1088        0
           proc    56     78K     115K  78643K      1127        0
        subproc   104      6K       6K  78643K       195        0
    NFS srvsock     1      0K       0K  78643K         1        0
     NFS daemon     1     16K      16K  78643K         1        0
    ip_moptions     0      0K       0K  78643K      2245        0
       in_multi    99      7K       7K  78643K       294        0
    ether_multi     1      0K       0K  78643K         3        0
    ISOFS mount     1     32K      32K  78643K         1        0
  MSDOSFS mount     1     16K      16K  78643K         1        0
           ttys   187    837K     837K  78643K       187        0
           exec     0      0K       1K  78643K      1077        0
            tdb     3      0K       0K  78643K         3        0
        pagedep     1      8K       8K  78643K         1        0
       inodedep     1     32K      32K  78643K         1        0
         newblk     1      0K       0K  78643K         1        0
        VM swap     8     62K      64K  78643K        10        0
       UVM amap   412     92K     103K  78643K     74430        0
       UVM aobj   131      6K       6K  78643K       137        0
        memdesc     1      4K       4K  78643K         1        0
    crypto data     1      1K       1K  78643K         1        0
    ip6_options     0      0K       0K  78643K       150        0
            NDP    13      0K       2K  78643K        48        0
           temp    74   5920K    6000K  78643K     25554        0
         kqueue    12     18K      30K  78643K       521        0
      SYN cache     2     16K      16K  78643K         2        0
ddb{1}> show all pools
Name      Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
plcache    128       22    0        0     1     0     1     1     0     8    0
rtpcb      120      335    0      332     5     4     1     3     0     8    0
rtentry    112      204    0       92     4     0     4     4     0     8    0
unpcb      144     7060    0     7047    55    49     6     7     0     8    5
syncache   304       90    0       90    14    13     1     1     0     8    1
sackhl      24        1    0        1     1     1     0     1     0     8    0
tcpqe       32      295    0      295    12    11     1     1     0     8    1
tcpcb      808     4419    0     4381    89    78    11    16     0     8    6
arp        120       33    0       15     1     0     1     1     0     8    0
ipq         40       49    0       49     6     6     0     1     0     8    0
ipqe        40      250    0      250     6     6     0     1     0     8    0
inpcb      368     8293    0     8252   113   103    10    20     0     8    5
nd6        136       60    0       34     1     0     1     1     0     8    0
kcovpl      48       15    0        7     1     0     1     1     0     8    0
art_heap8  4096       1    0        0     1     0     1     1     0     8    0
art_heap4  256      863    0      392    31     1    30    31     0     8    0
art_table   32      864    0      392     4     0     4     4     0     8    0
art_node    16      203    0      101     1     0     1     1     0     8    0
sysvmsgpl   40        3    0        3     1     1     0     1     0     8    0
semupl     112       40    0       40     1     1     0     1     0     8    0
semapl     112       11    0        1     1     0     1     1     0     8    0
shmpl      112      134    0        6     4     0     4     4     0     8    0
dirhash    1024      17    0        0     3     0     3     3     0     8    0
dino2pl    256    10681    0     9231    91     0    91    91     0     8    0
ffsino     272    10681    0     9231    98     0    98    98     0     8    0
nchpl      144    21588    0    19945    63     0    63    63     0     8    0
uvmvnodes   80     5926    0        0   121     0   121   121     0     8    0
vnodes     216     5926    0        0   330     0   330   330     0     8    0
namei      1024   70928    0    70926     3     2     1     2     0     8    0
percpumem   16       50    0        7     1     0     1     1     0     8    0
kstatmem   264       36    0       14     2     0     2     2     0     8    0
scxspl     216    60920    0    60918    22    21     1     8     1     8    0
plimitpl   152     1288    0     1264    12    11     1     2     0     8    0
sigapl     424     7696    0     7644     7     0     7     7     0     8    0
futexpl     64    73228    0    73224     1     0     1     1     0     8    0
knotepl    120      588    0        0    18     1    17    18     0     8    0
kqueuepl   216     1285    0     1277    29    28     1     5     0     8    0
pipepl     320     1604    0     1576    47    43     4    13     0     8    1
fdescpl    496     7678    0     7645     7     2     5     6     0     8    0
filepl     152    52801    0    52564   106    89    17    20     0     8    7
lockfpl    104     1847    0     1844     2     1     1     2     0     8    0
lockfspl    48      314    0      311     1     0     1     1     0     8    0
sessionpl  144       30    0       14     1     0     1     1     0     8    0
pgrppl      48       65    0       49     1     0     1     1     0     8    0
ucredpl    104     5577    0     5559     1     0     1     1     0     8    0
zombiepl   144     7645    0     7644     1     0     1     1     0     8    0
processpl  1072    7696    0     7644     5     1     4     5     0     8    0
procpl     680    20605    0    20533    21    13     8     8     0     8    1
sosppl     168      149    0      149     8     7     1     1     0     8    1
sockpl     488    15990    0    15933   308   292    16    32     0     8    8
mcl64k     65536     17    0        0     3     1     2     3     0     8    0
mcl16k     16384     18    0        0     3     1     2     3     0     8    0
mcl12k     12288     22    0        0     2     0     2     2     0     8    0
mcl9k      9216      12    0        0     1     0     1     1     0     8    0
mcl8k      8192      29    0        0     4     1     3     3     0     8    0
mcl4k      4096      41    0        0     3     0     3     3     0     8    0
mcl2k2     2112       8    0        0     1     0     1     1     0     8    0
mcl2k      2048     320    0        0    35     9    26    35     0     8    0
mtagpl      96        8    0        0     1     0     1     1     0     8    0
mbufpl     256     1139    0        0    61     0    61    61     0     8    0
bufpl      288    15599    0     9274   453     0   453   453     0     8    0
anonpl      24   811544    0   800889   121    44    77    95     0   186    0
amapchunkpl 152  234550    0   233672    48     8    40    44     0   158    0
amappl16   200    17045    0    16759    58    42    16    29     0     8    0
amappl15   192       17    0       17     1     1     0     1     0     8    0
amappl14   184      176    0      161     2     1     1     2     0     8    0
amappl13   176       17    0       17     1     1     0     1     0     8    0
amappl12   168     8429    0     8384     3     0     3     3     0     8    1
amappl11   160       61    0       51     1     0     1     1     0     8    0
amappl10   152       44    0       31     1     0     1     1     0     8    0
amappl9    144      245    0      245    15    14     1     1     0     8    1
amappl8    136      560    0      425     5     0     5     5     0     8    0
amappl7    128      106    0       92     2     0     2     2     0     8    0
amappl6    120      361    0      332     2     1     1     2     0     8    0
amappl5    112      331    0      322     1     0     1     1     0     8    0
amappl4    104      768    0      721     3     1     2     3     0     8    0
amappl3     96    46492    0    46403     4     1     3     3     0     8    0
amappl2     88     8266    0     8183     3     1     2     3     0     8    0
amappl1     80    35473    0    34942    22    10    12    22     0     8    0
amappl      88    73564    0    73314     7     0     7     7     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      136    0        6     3     0     3     3     0     8    0
uaddrrnd    24     7678    0     7644     1     0     1     1     0     8    0
uaddrbest   32        2    0        0     1     0     1     1     0     8    0
uaddr       24     7678    0     7644     1     0     1     1     0     8    0
vmmpekpl   168    60592    0    60537     3     0     3     3     0     8    0
vmmpepl    168   453701    0   451285   181    59   122   122     0   357    9
vmsppl     464     7677    0     7644     7     2     5     6     0     8    0
rwobjpl     56   120636    0   113195   116     9   107   109     0     8    0
pdppl      4096   15364    0    15288   310   228    82    94     0     8    6
pvpl        32  2196220    0  2179543   400   248   152   355     0   265    0
pmappl     248     7677    0     7644     4     1     3     3     0     8    0
extentpl    40       56    0       38     1     0     1     1     0     8    0
phpool     112     1325    0      439    26     0    26    26     0     8    0
ddb{1}> machine ddbcpu 0
Stopped at      x86_ipi_db+0x1e:        addq    $0x8,%rsp
x86_ipi_db(ffffffff82bc4ff0) 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
__sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x29 kd_curproc sys/dev/kcov.c:589 [inline]
__sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x29 sys/dev/kcov.c:158
__mp_lock(ffffffff82c6bf38) at __mp_lock+0x133 __mp_lock_spin sys/kern/kern_lock.c:116 [inline]
__mp_lock(ffffffff82c6bf38) at __mp_lock+0x133 sys/kern/kern_lock.c:147
intr_handler(ffff800025526640,ffff80000007bd80) at intr_handler+0x62 sys/arch/amd64/amd64/intr.c:532
Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f
Xspllower() at Xspllower+0x1d
cnputc(70) at cnputc+0x4f sys/dev/cons.c:218
db_putchar(70) at db_putchar+0x3fc sys/ddb/db_output.c:155
kprintf() at kprintf+0x6bc sys/kern/subr_prf.c:724
db_printf(ffffffff828226bb) at db_printf+0x89 sys/kern/subr_prf.c:498
panic(ffffffff827946c1) at panic+0xdb sys/kern/subr_prf.c:216
vop_generic_badop(ffff800025526a68) at vop_generic_badop+0x1f sys/kern/vfs_default.c:133
end trace frame: 0xffff800025526ab0, count: 0
ddb{0}> trace
x86_ipi_db(ffffffff82bc4ff0) 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
__sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x29 kd_curproc sys/dev/kcov.c:589 [inline]
__sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x29 sys/dev/kcov.c:158
__mp_lock(ffffffff82c6bf38) at __mp_lock+0x133 __mp_lock_spin sys/kern/kern_lock.c:116 [inline]
__mp_lock(ffffffff82c6bf38) at __mp_lock+0x133 sys/kern/kern_lock.c:147
intr_handler(ffff800025526640,ffff80000007bd80) at intr_handler+0x62 sys/arch/amd64/amd64/intr.c:532
Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f
Xspllower() at Xspllower+0x1d
cnputc(70) at cnputc+0x4f sys/dev/cons.c:218
db_putchar(70) at db_putchar+0x3fc sys/ddb/db_output.c:155
kprintf() at kprintf+0x6bc sys/kern/subr_prf.c:724
db_printf(ffffffff828226bb) at db_printf+0x89 sys/kern/subr_prf.c:498
panic(ffffffff827946c1) at panic+0xdb sys/kern/subr_prf.c:216
vop_generic_badop(ffff800025526a68) at vop_generic_badop+0x1f sys/kern/vfs_default.c:133
VOP_STRATEGY(fffffd806bc08200,fffffd8067bad010) at VOP_STRATEGY+0x9f sys/kern/vfs_vops.c:628
bwrite(fffffd8067bad010) at bwrite+0x1f1 sys/kern/vfs_bio.c:760
VOP_BWRITE(fffffd8067bad010) at VOP_BWRITE+0x4e sys/kern/vfs_vops.c:640
ufs_mkdir(ffff800025526d00) at ufs_mkdir+0x6c4 sys/ufs/ufs/ufs_vnops.c:1235
VOP_MKDIR(fffffd8068079968,ffff800025526e60,ffff800025526e90,ffff800025526d90) at VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388
domkdirat(ffff80002120b2b8,ffffff9c,78b882e9ff20,1ff) at domkdirat+0x125 sys/kern/vfs_syscalls.c:3073
syscall(ffff800025527010) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
syscall(ffff800025527010) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x78b882e9ff90, count: -22
ddb{0}> machine ddbcpu 1
Stopped at      db_enter+0x1c:  addq    $0x8,%rsp
db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff8279fd90) at panic+0x17b sys/kern/subr_prf.c:198
__assert(ffffffff8281fcb3,ffffffff8284a55d,9de,ffffffff827d8a93) at __assert+0x29 sys/kern/subr_prf.c:157
uvm_map_teardown(fffffd80687f73c8) at uvm_map_teardown+0x348 sys/uvm/uvm_map.c:2528
uvmspace_free(fffffd80687f73c8) at uvmspace_free+0xa6 sys/uvm/uvm_map.c:3503
reaper(ffff8000211a3a98) at reaper+0x19a sys/kern/kern_exit.c:458
end trace frame: 0x0, count: 9
ddb{1}> trace
db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff8279fd90) at panic+0x17b sys/kern/subr_prf.c:198
__assert(ffffffff8281fcb3,ffffffff8284a55d,9de,ffffffff827d8a93) at __assert+0x29 sys/kern/subr_prf.c:157
uvm_map_teardown(fffffd80687f73c8) at uvm_map_teardown+0x348 sys/uvm/uvm_map.c:2528
uvmspace_free(fffffd80687f73c8) at uvmspace_free+0xa6 sys/uvm/uvm_map.c:3503
reaper(ffff8000211a3a98) at reaper+0x19a sys/kern/kern_exit.c:458
end trace frame: 0x0, count: -6

Crashes (13):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2023/09/25 18:50 openbsd 97b6e1d64afc 0b6a67ac .config console log report ci-openbsd-setuid assert "!_kernel_lock_held()" failed in uvm_map.c
2023/08/23 02:41 openbsd 5b707e820d80 b81ca3f6 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-setuid assert "!_kernel_lock_held()" failed in uvm_map.c
2023/08/21 10:35 openbsd 1e7b266a5f3a d216d8a0 .config console log report ci-openbsd-setuid assert "!_kernel_lock_held()" failed in uvm_map.c
2023/08/15 05:17 openbsd 30c27baa1961 39990d51 .config console log report ci-openbsd-setuid assert "!_kernel_lock_held()" failed in uvm_map.c
2023/08/07 18:59 openbsd 358357352a57 0ef3dfda .config console log report ci-openbsd-setuid assert "!_kernel_lock_held()" failed in uvm_map.c
2023/07/27 03:49 openbsd 35ad8a26bc6b 41fe1bae .config console log report ci-openbsd-multicore assert "!_kernel_lock_held()" failed in uvm_map.c
2023/07/16 00:31 openbsd 4d951e9375c9 35d9ecc5 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-setuid assert "!_kernel_lock_held()" failed in uvm_map.c
2023/06/11 03:38 openbsd ff0e7be1ebbc 49519f06 .config console log report ci-openbsd-setuid assert "!_kernel_lock_held()" failed in uvm_map.c
2023/05/31 08:36 openbsd 08ac1330e795 09898419 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-setuid assert "!_kernel_lock_held()" failed in uvm_map.c
2023/05/21 09:49 openbsd 12be23f54c2a 4bce1a3e .config console log report ci-openbsd-setuid assert "!_kernel_lock_held()" failed in uvm_map.c
2023/03/21 08:01 openbsd 1e5b016c5082 7939252e .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore assert "!_kernel_lock_held()" failed in uvm_map.c
2023/03/09 12:07 openbsd 1e5b016c5082 f08b59ac .config console log report ci-openbsd-multicore assert "!_kernel_lock_held()" failed in uvm_map.c
2023/02/20 09:03 openbsd 1e5b016c5082 bcdf85f8 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore assert "!_kernel_lock_held()" failed in uvm_map.c
* Struck through repros no longer work on HEAD.