syzbot


assert "uvm_page_owner_locked_p(pg)" failed in uvm_page.c

Status: upstream: reported on 2021/12/27 07:34
Reported-by: syzbot+78e55b3fe74e144f033b@syzkaller.appspotmail.com
First crash: 812d, last: 5h30m

Sample crash report:
panic: kernel diagnostic assertion "uvm_page_owner_locked_p(pg)" failed: file "/syzkaller/managers/multicore/kernel/sys/uvm/uvm_page.c", line 1256
Stopped at      db_enter+0x1c:  addq    $0x8,%rsp
    TID    PID    UID     PRFLAGS     PFLAGS  CPU  COMMAND
 286792  82758      0           0          0    1  syz-executor.7
*126683  83528      0     0x14000      0x200    0K reaper
db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff8294bad2) at panic+0x17b sys/kern/subr_prf.c:198
__assert(ffffffff82902c71,ffffffff828a53db,4e8,ffffffff82953413) at __assert+0x29 sys/kern/subr_prf.c:157
uvm_pageunwire(fffffd80077a2980) at uvm_pageunwire+0x16b sys/uvm/uvm_page.c:1256
uvm_fault_unwire_locked(fffffd807d592568,207549f8000,20754bf7000) at uvm_fault_unwire_locked+0x242 sys/uvm/uvm_fault.c:1695
uvm_unmap_kill_entry_withlock(fffffd807d592568,fffffd806b8c7ae8,0) at uvm_unmap_kill_entry_withlock+0x6b sys/uvm/uvm_map.c:1925
uvm_map_teardown(fffffd807d592568) at uvm_map_teardown+0x1c7 uvm_map_addr_RBT_LEFT sys/uvm/uvm_map.h:176 [inline]
uvm_map_teardown(fffffd807d592568) at uvm_map_teardown+0x1c7 sys/uvm/uvm_map.c:2565
uvmspace_free(fffffd807d592568) at uvmspace_free+0xa6 sys/uvm/uvm_map.c:3497
reaper(ffff80002a145ff8) at reaper+0x19a sys/kern/kern_exit.c:463
end trace frame: 0x0, count: 6
https://www.openbsd.org/ddb.html describes the minimum info required in bug
reports.  Insufficient info makes it difficult to find and fix bugs.
ddb{0}> 
ddb{0}> set $lines = 0
ddb{0}> set $maxwidth = 0
ddb{0}> show panic
*cpu0: kernel diagnostic assertion "uvm_page_owner_locked_p(pg)" failed: file "/syzkaller/managers/multicore/kernel/sys/uvm/uvm_page.c", line 1256
ddb{0}> trace
db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff8294bad2) at panic+0x17b sys/kern/subr_prf.c:198
__assert(ffffffff82902c71,ffffffff828a53db,4e8,ffffffff82953413) at __assert+0x29 sys/kern/subr_prf.c:157
uvm_pageunwire(fffffd80077a2980) at uvm_pageunwire+0x16b sys/uvm/uvm_page.c:1256
uvm_fault_unwire_locked(fffffd807d592568,207549f8000,20754bf7000) at uvm_fault_unwire_locked+0x242 sys/uvm/uvm_fault.c:1695
uvm_unmap_kill_entry_withlock(fffffd807d592568,fffffd806b8c7ae8,0) at uvm_unmap_kill_entry_withlock+0x6b sys/uvm/uvm_map.c:1925
uvm_map_teardown(fffffd807d592568) at uvm_map_teardown+0x1c7 uvm_map_addr_RBT_LEFT sys/uvm/uvm_map.h:176 [inline]
uvm_map_teardown(fffffd807d592568) at uvm_map_teardown+0x1c7 sys/uvm/uvm_map.c:2565
uvmspace_free(fffffd807d592568) at uvmspace_free+0xa6 sys/uvm/uvm_map.c:3497
reaper(ffff80002a145ff8) at reaper+0x19a sys/kern/kern_exit.c:463
end trace frame: 0x0, count: -9
ddb{0}> show registers
rdi                                0
rsi                              0x1
rbp               0xffff80002a152710
rbx               0xffffffff82c73cb7    cpu_info_full_primary+0x2cb7
rdx                                0
rcx               0xffff80002a145ff8
rax               0xffffffff82c72ff0    cpu_info_full_primary+0x1ff0
r8                 0x101010101010101
r9                0x8080808080808080
r10               0x7d4fbfb3b52eb67a
r11               0x4bd3723e1b80728e
r12               0xffffffff82c73ab8    cpu_info_full_primary+0x2ab8
r13                                0
r14                                0
r15                              0x1
rip               0xffffffff81fb9cac    db_enter+0x1c
cs                               0x8
rflags                         0x246
rsp               0xffff80002a152700
ss                              0x10
db_enter+0x1c:  addq    $0x8,%rsp
ddb{0}> show proc
PROC (reaper) tid=126683 pid=83528 tcnt=1 stat=onproc
    flags process=14000<NOZOMBIE,SYSTEM> proc=200<SYSTEM>
    runpri=86, usrpri=86, slppri=4, nice=20
    wchan=0x0, wmesg=, ps_single=0x0
    forw=0xffffffffffffffff, list=0xffff80002a1467f0,0xffff80002a145568
    process=0xffff8000ffff9f18 user=0xffff80002a14d000, vmspace=0xffffffff82d83748
    estcpu=36, cpticks=37, pctcpu=22.31, user=0, sys=247, intr=4
ddb{0}> ps
   PID     TID   PPID    UID  S       FLAGS  WAIT          COMMAND
 82758  286792  10105      0  7           0                syz-executor.7
 82758   11767  10105      0  3   0x4000080  fsleep        syz-executor.7
 91079   74822      1      0  3  0x18100083  ttyin         getty
  2377  241543      0      0  3     0x14280  nfsidl        nfsio
 98246  175537      0      0  3     0x14280  nfsidl        nfsio
 99643  257300      0      0  3     0x14280  nfsidl        nfsio
 49574  292869      0      0  3     0x14280  nfsidl        nfsio
  8453  126376      0      0  3     0x14280  nfsidl        nfsio
 38045  236289      0      0  3     0x14280  nfsidl        nfsio
 92077  488515      0      0  3     0x14280  nfsidl        nfsio
 51392  176043      0      0  3     0x14280  nfsidl        nfsio
 66900  101819      0      0  3     0x14280  nfsidl        nfsio
 51776  289949      0      0  3     0x14280  nfsidl        nfsio
 13542   88282      0      0  3     0x14280  nfsidl        nfsio
 34199  188984      0      0  3     0x14280  nfsidl        nfsio
 27888  214491      0      0  3     0x14280  nfsidl        nfsio
 11770  222487      0      0  3     0x14280  nfsidl        nfsio
 29505  444315      0      0  3     0x14280  nfsidl        nfsio
 88017  152293      0      0  3     0x14280  nfsidl        nfsio
 24441  214445      0      0  3     0x14280  nfsidl        nfsio
 99644  250616      0      0  3     0x14280  nfsidl        nfsio
 97044  343236      0      0  3     0x14280  nfsidl        nfsio
 62655  477677      0      0  3     0x14280  nfsidl        nfsio
 48527  456936      0      0  3     0x14200  acct          acct
 10105  136332  51046      0  2       0x482                syz-executor.7
 23777  407643  51046      0  2         0x2                syz-executor.3
 25218  159025      0      0  3     0x14200  bored         sosplice
 25072  275086  51046      0  2         0x2                syz-executor.6
 81805  406845  51046      0  2         0x2                syz-executor.1
 51046  387065    295      0  3  0x1a000082  wait          syz-fuzzer
 51046  455496    295      0  2  0x1e000482                syz-fuzzer
 51046   65758    295      0  3  0x1e000082  wait          syz-fuzzer
 51046  151545    295      0  3  0x1e000082  wait          syz-fuzzer
 51046  331889    295      0  3  0x1e000082  thrsleep      syz-fuzzer
 51046  412355    295      0  3  0x1e000082  thrsleep      syz-fuzzer
 51046  122112    295      0  3  0x1e000082  wait          syz-fuzzer
 51046  368586    295      0  3  0x1e000082  wait          syz-fuzzer
 51046  268739    295      0  3  0x1e000082  thrsleep      syz-fuzzer
 51046  189727    295      0  3  0x1e000082  wait          syz-fuzzer
 51046    6251    295      0  3  0x1e000082  thrsleep      syz-fuzzer
 51046  466284    295      0  3  0x1e000082  wait          syz-fuzzer
 51046  157358    295      0  3  0x1e000082  thrsleep      syz-fuzzer
 51046  142836    295      0  2  0x1e000082                syz-fuzzer
 51046  337808    295      0  3  0x1e000082  wait          syz-fuzzer
 51046  235841    295      0  2  0x1e000082                syz-fuzzer
   295  474215  17761      0  3   0x810008a  sigsusp       ksh
 17761  307353  75681      0  3  0x1800009a  kqread        sshd
 75681  110240      1      0  3  0x18000088  kqread        sshd
 80252  153067  17533     74  3  0x19100092  bpf           pflogd
 17533  123110      1      0  3  0x18000080  netio         pflogd
 29512  429810  13409     73  2  0x19100010                syslogd
 13409  477700      1      0  3  0x18100082  netio         syslogd
 79689  346640      1      0  3  0x18100080  kqread        resolvd
  6833  482624  87015     77  3  0x18100092  kqread        dhcpleased
 79259  267912  87015     77  3  0x18100092  kqread        dhcpleased
 87015  470638      1      0  3  0x18000080  kqread        dhcpleased
 87722  235981      0      0  2     0x14200                smr
 27805  245542      0      0  2     0x14200                zerothread
  3177  324185      0      0  3     0x14200  aiodoned      aiodoned
 23613   14774      0      0  2     0x14600                update
 69151   54573      0      0  3     0x14200  cleaner       cleaner
*83528  126683      0      0  7     0x14200                reaper
 61767   15265      0      0  3     0x14200  pgdaemon      pagedaemon
 31861  251191      0      0  3     0x14200  bored         viomb
 60653  150097      0      0  3  0x40014200  acpi0         acpi0
 70479   82592      0      0  3  0x40014200                idle1
 36007  189445      0      0  3     0x14200  bored         softnet3
 59155  482740      0      0  3     0x14200  bored         softnet2
 80382  373133      0      0  3     0x14200  bored         softnet1
 77378   56635      0      0  3     0x14200  bored         softnet0
 47131   76319      0      0  2     0x14200                systqmp
 67362  394602      0      0  3     0x14200  bored         systq
 75691  508165      0      0  3     0x14200  tmoslp        softclockmp
 63143    2823      0      0  2  0x40014200                softclock
 41353  295212      0      0  3  0x40014200                idle0
     1  435035      0      0  3   0x8000082  wait          init
     0       0     -1      0  3     0x10200  scheduler     swapper
ddb{0}> show all locks
CPU 0:
exclusive mutex &uvm.pageqlock r = 0 (0xffffffff82d5b888)
#0  witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0  witness_lock+0x446 sys/kern/subr_witness.c:1187
#1  mtx_enter_try+0x103
#2  mtx_enter+0x4e sys/kern/kern_lock.c:266
#3  uvm_fault_unwire_locked+0x23a sys/uvm/uvm_fault.c:1694
#4  uvm_unmap_kill_entry_withlock+0x6b sys/uvm/uvm_map.c:1925
#5  uvm_map_teardown+0x1c7 uvm_map_addr_RBT_LEFT sys/uvm/uvm_map.h:176 [inline]
#5  uvm_map_teardown+0x1c7 sys/uvm/uvm_map.c:2565
#6  uvmspace_free+0xa6 sys/uvm/uvm_map.c:3497
#7  reaper+0x19a sys/kern/kern_exit.c:463
#8  proc_trampoline+0x10
Process 23777 (syz-executor.3) thread 0xffff80002a1cc7e8 (407643)
exclusive rrwlock inode r = 0 (0xfffffd8078e591b0)
#0  witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0  witness_lock+0x446 sys/kern/subr_witness.c:1187
#1  rw_enter+0x32a sys/kern/kern_rwlock.c:309
#2  rrw_enter+0x8e sys/kern/kern_rwlock.c:464
#3  VOP_LOCK+0x8b sys/kern/vfs_vops.c:518
#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:1127
#8  VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388
#9  domkdirat+0x125 sys/kern/vfs_syscalls.c:3069
#10 syscall+0x53b mi_syscall sys/sys/syscall_mi.h:183 [inline]
#10 syscall+0x53b sys/arch/amd64/amd64/trap.c:577
#11 Xsyscall+0x128
exclusive rrwlock inode r = 0 (0xfffffd80693ff4d8)
#0  witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0  witness_lock+0x446 sys/kern/subr_witness.c:1187
#1  rw_enter+0x32a sys/kern/kern_rwlock.c:309
#2  rrw_enter+0x8e sys/kern/kern_rwlock.c:464
#3  VOP_LOCK+0x8b sys/kern/vfs_vops.c:518
#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:3054
#8  syscall+0x53b mi_syscall sys/sys/syscall_mi.h:183 [inline]
#8  syscall+0x53b sys/arch/amd64/amd64/trap.c:577
#9  Xsyscall+0x128
Process 25072 (syz-executor.6) thread 0xffff80002a1bb570 (275086)
exclusive rrwlock inode r = 0 (0xfffffd80721d8f80)
#0  witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0  witness_lock+0x446 sys/kern/subr_witness.c:1187
#1  rw_enter+0x32a sys/kern/kern_rwlock.c:309
#2  rrw_enter+0x8e sys/kern/kern_rwlock.c:464
#3  VOP_LOCK+0x8b sys/kern/vfs_vops.c:518
#4  vn_lock+0x85 sys/kern/vfs_vnops.c:564
#5  vn_closefile+0xc9 vn_close sys/kern/vfs_vnops.c:292 [inline]
#5  vn_closefile+0xc9 sys/kern/vfs_vnops.c:609
#6  fdrop+0xd5 sys/kern/kern_descrip.c:1274
#7  closef+0x120 sys/kern/kern_descrip.c:1258
#8  syscall+0x5b5 mi_syscall sys/sys/syscall_mi.h:183 [inline]
#8  syscall+0x5b5 sys/arch/amd64/amd64/trap.c:577
#9  Xsyscall+0x128
Process 81805 (syz-executor.1) thread 0xffff80002a1bb818 (406845)
exclusive rrwlock inode r = 0 (0xfffffd806eb8d5e8)
#0  witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0  witness_lock+0x446 sys/kern/subr_witness.c:1187
#1  rw_enter+0x32a sys/kern/kern_rwlock.c:309
#2  rrw_enter+0x8e sys/kern/kern_rwlock.c:464
#3  VOP_LOCK+0x8b sys/kern/vfs_vops.c:518
#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:1127
#8  VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388
#9  domkdirat+0x125 sys/kern/vfs_syscalls.c:3069
#10 syscall+0x53b mi_syscall sys/sys/syscall_mi.h:183 [inline]
#10 syscall+0x53b sys/arch/amd64/amd64/trap.c:577
#11 Xsyscall+0x128
exclusive rrwlock inode r = 0 (0xfffffd80721d85f0)
#0  witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0  witness_lock+0x446 sys/kern/subr_witness.c:1187
#1  rw_enter+0x32a sys/kern/kern_rwlock.c:309
#2  rrw_enter+0x8e sys/kern/kern_rwlock.c:464
#3  VOP_LOCK+0x8b sys/kern/vfs_vops.c:518
#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:3054
#8  syscall+0x53b mi_syscall sys/sys/syscall_mi.h:183 [inline]
#8  syscall+0x53b sys/arch/amd64/amd64/trap.c:577
#9  Xsyscall+0x128
Process 29512 (syslogd) thread 0xffff80002a18e550 (429810)
exclusive rrwlock inode r = 0 (0xfffffd806e790700)
#0  witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0  witness_lock+0x446 sys/kern/subr_witness.c:1187
#1  rw_enter+0x32a sys/kern/kern_rwlock.c:309
#2  rrw_enter+0x8e sys/kern/kern_rwlock.c:464
#3  VOP_LOCK+0x8b sys/kern/vfs_vops.c:518
#4  vn_lock+0x85 sys/kern/vfs_vnops.c:564
#5  sys_fsync+0xf1 sys/kern/vfs_syscalls.c:2896
#6  syscall+0x53b mi_syscall sys/sys/syscall_mi.h:183 [inline]
#6  syscall+0x53b sys/arch/amd64/amd64/trap.c:577
#7  Xsyscall+0x128
Process 83528 (reaper) thread 0xffff80002a145ff8 (126683)
exclusive rwlock uobjlk r = 0 (0xfffffd806cb2f980)
#0  witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0  witness_lock+0x446 sys/kern/subr_witness.c:1187
#1  rw_enter+0x32a sys/kern/kern_rwlock.c:309
#2  uvm_fault_unwire_locked+0x1da sys/uvm/uvm_fault.c:1682
#3  uvm_unmap_kill_entry_withlock+0x6b sys/uvm/uvm_map.c:1925
#4  uvm_map_teardown+0x1c7 uvm_map_addr_RBT_LEFT sys/uvm/uvm_map.h:176 [inline]
#4  uvm_map_teardown+0x1c7 sys/uvm/uvm_map.c:2565
#5  uvmspace_free+0xa6 sys/uvm/uvm_map.c:3497
#6  reaper+0x19a sys/kern/kern_exit.c:463
#7  proc_trampoline+0x10
exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82e5b550)
#0  witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0  witness_lock+0x446 sys/kern/subr_witness.c:1187
#1  uvm_unmap_kill_entry_withlock+0x50 sys/uvm/uvm_map.c:1923
#2  uvm_map_teardown+0x1c7 uvm_map_addr_RBT_LEFT sys/uvm/uvm_map.h:176 [inline]
#2  uvm_map_teardown+0x1c7 sys/uvm/uvm_map.c:2565
#3  uvmspace_free+0xa6 sys/uvm/uvm_map.c:3497
#4  reaper+0x19a sys/kern/kern_exit.c:463
#5  proc_trampoline+0x10
exclusive rwlock vmmaplk r = 0 (0xfffffd807d592660)
#0  witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0  witness_lock+0x446 sys/kern/subr_witness.c:1187
#1  rw_enter+0x32a sys/kern/kern_rwlock.c:309
#2  vm_map_lock_ln+0xfa sys/uvm/uvm_map.c:5372
#3  uvm_map_teardown+0xb3 sys/uvm/uvm_map.c:2533
#4  uvmspace_free+0xa6 sys/uvm/uvm_map.c:3497
#5  reaper+0x19a sys/kern/kern_exit.c:463
#6  proc_trampoline+0x10
exclusive mutex &uvm.pageqlock r = 0 (0xffffffff82d5b888)
#0  witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0  witness_lock+0x446 sys/kern/subr_witness.c:1187
#1  mtx_enter_try+0x103
#2  mtx_enter+0x4e sys/kern/kern_lock.c:266
#3  uvm_fault_unwire_locked+0x23a sys/uvm/uvm_fault.c:1694
#4  uvm_unmap_kill_entry_withlock+0x6b sys/uvm/uvm_map.c:1925
#5  uvm_map_teardown+0x1c7 uvm_map_addr_RBT_LEFT sys/uvm/uvm_map.h:176 [inline]
#5  uvm_map_teardown+0x1c7 sys/uvm/uvm_map.c:2565
#6  uvmspace_free+0xa6 sys/uvm/uvm_map.c:3497
#7  reaper+0x19a sys/kern/kern_exit.c:463
#8  proc_trampoline+0x10
ddb{0}> show malloc
           Type InUse  MemUse  HighUse   Limit  Requests Type Lim
         devbuf 10190   6478K    6863K 166960K     13712        0
            pcb    15     12K      14K 166960K       210        0
         rtable   130      4K       6K 166960K       621        0
             pf    25      8K      10K 166960K        73        0
         ifaddr    26     11K      15K 166960K        73        0
        ifgroup    40      2K       2K 166960K       101        0
         sysctl     3      1K       1K 166960K         3        0
       counters    56     35K      36K 166960K        88        0
       ioctlops     0      0K       4K 166960K      1588        0
            iov     0      0K      16K 166960K       247        0
          mount     1      1K       1K 166960K         1        0
            log     0      0K       0K 166960K         4        0
         vnodes  1378     87K      87K 166960K      3084        0
      UFS quota     1     32K      32K 166960K         1        0
      UFS mount     5     36K      36K 166960K         5        0
            shm     2      1K      17K 166960K        50        0
         VM map     2      1K       1K 166960K         2        0
            sem     9      0K       0K 166960K         9        0
        dirhash    12      2K       3K 166960K        54        0
           ACPI  1697    195K     286K 166960K     12548        0
      file desc     8     25K      85K 166960K      5518        0
          sigio     0      0K       0K 166960K        53        0
           proc    72     91K     128K 166960K       989        0
        subproc    65      4K       6K 166960K       160        0
    NFS srvsock     1      0K       0K 166960K         1        0
     NFS daemon     1     16K      16K 166960K         1        0
    ip_moptions     0      0K       0K 166960K       462        0
       in_multi    44      3K       7K 166960K       299        0
    ether_multi     1      0K       0K 166960K         5        0
            mrt     1      0K       0K 166960K         9        0
    ISOFS mount     1     32K      32K 166960K         1        0
  MSDOSFS mount     1     16K      16K 166960K         1        0
           ttys   127    572K     572K 166960K       127        0
           exec     0      0K       1K 166960K       718        0
            tdb     3      0K       0K 166960K         3        0
        VM swap     8     62K      64K 166960K        10        0
       UVM amap   401    412K     415K 166960K     49834        0
       UVM aobj    76      7K       7K 166960K       105        0
     pinsyscall    26     52K     108K 166960K      1415        0
        memdesc     1      4K       4K 166960K         1        0
    crypto data     1      1K       1K 166960K         1        0
    ip6_options     0      0K       1K 166960K       292        0
            NDP     8      0K       2K 166960K        48        0
           temp    74   6812K    6944K 166960K     30621        0
         kqueue    12     18K      34K 166960K       506        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      186    0      183     1     0     1     1     0     8    0
rtentry    112      162    0      107     5     3     2     4     0     8    0
unpcb      144     2064    0     2049     5     4     1     2     0     8    0
syncache   336      167    0      167     4     4     0     1     0     8    0
tcpqe       32      292    0      292     6     6     0     1     0     8    0
tcpcb      808     1067    0     1036    14     9     5    11     0     8    0
arp        120       27    0       19     1     0     1     1     0     8    0
inpcb      392     2595    0     2561    11     4     7    11     0     8    0
nd6        136       36    0       27     2     1     1     1     0     8    0
pkpcb       40       18    0       18     3     3     0     1     0     8    0
kcovpl      48       12    0        7     1     0     1     1     0     8    0
ppxss      1168       4    0        4     1     1     0     1     0     8    0
pfosfp      40     1428    0     1005     5     0     5     5     0     8    0
pfosfpen   112     1428    0      714    21     0    21    21     0     8    0
pfstitem    24      106    0      101     1     0     1     1     0     8    0
pfstkey    128      106    0      101     2     0     2     2     0     8    0
pfstate    376      106    0      101     6     4     2     6     0     8    0
pfrule     1344      21    0       16     2     1     1     2     0     8    0
art_heap8  4096       1    0        0     1     0     1     1     0     8    0
art_heap4  256      645    0      411    38    23    15    29     0     8    0
art_table   32      646    0      411     5     3     2     4     0     8    0
art_node    16      157    0      107     1     0     1     1     0     8    0
sysvmsgpl   40       40    0        0     1     0     1     1     0     8    0
semupl     112       13    0       13     2     2     0     1     0     8    0
semapl     112        7    0        0     1     0     1     1     0     8    0
shmpl      112      102    0       29     3     0     3     3     0     8    0
dirhash    1024      45    0       28     3     0     3     3     0     8    0
dino2pl    256     9086    0     7557    96     0    96    96     0     8    0
ffsino     272     9086    0     7557   103     0   103   103     0     8    0
nchpl      144    16038    0    14304    67     0    67    67     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   42471    0    42469     3     2     1     2     0     8    0
percpumem   16       58    0       16     1     0     1     1     0     8    0
vcpupl     2048      28    0        0     4     0     4     4     0     8    0
vmpool     696       32    0        4     4     1     3     3     0     8    0
kstatmem   264       48    0       32     4     2     2     2     0     8    0
scxspl     216    48321    0    48321    16    15     1     8     1     8    1
plimitpl   152      373    0      356     1     0     1     1     0     8    0
sigapl     424     5859    0     5791    10     1     9     9     0     8    0
futexpl     64    36168    0    36167     3     2     1     1     0     8    0
knotepl    120      138    0        0     4     0     4     4     0     8    0
kqueuepl   216      535    0      527     1     0     1     1     0     8    0
pipepl     320      382    0      358     3     0     3     3     0     8    0
fdescpl    496     5819    0     5798     7     2     5     5     0     8    0
filepl     152    19898    0    19714    15     5    10    13     0     8    0
lockfpl    104      989    0      987     1     0     1     1     0     8    0
lockfspl    48      314    0      312     1     0     1     1     0     8    0
sessionpl  144       31    0       14     1     0     1     1     0     8    0
pgrppl      48       67    0       50     1     0     1     1     0     8    0
ucredpl    104     4405    0     4392     1     0     1     1     0     8    0
zombiepl   144     5799    0     5791     1     0     1     1     0     8    0
processpl  1136    5859    0     5791     6     0     6     6     0     8    0
procpl     680    12120    0    12031    11     2     9     9     0     8    0
srpgc       96       16    0       16     2     2     0     1     0     8    0
sosppl     168      148    0      148     3     3     0     2     0     8    0
sockpl     584     4863    0     4811    10     2     8    10     0     8    0
mcl64k     65536     17    0        0     3     0     3     3     0     8    0
mcl16k     16384     14    0        0     2     0     2     2     0     8    0
mcl12k     12288      9    0        0     1     0     1     1     0     8    0
mcl9k      9216       5    0        0     1     0     1     1     0     8    0
mcl8k      8192      17    0        0     3     0     3     3     0     8    0
mcl4k      4096      17    0        0     3     0     3     3     0     8    0
mcl2k2     2112       4    0        0     1     0     1     1     0     8    0
mcl2k      2048     263    0        0    32     2    30    32     0     8    0
mtagpl      96       56    0        0     2     0     2     2     0     8    0
mbufpl     256     1913    0        0   117     0   117   117     0     8    0
bufpl      280    14138    0     7869   448     0   448   448     0     8    0
anonpl      24   645596    0   633349   159    56   103   105     0   186    6
amapchunkpl 152  157558    0   156596    59     9    50    53     0   158    1
amappl16   200    14032    0    13848    52    41    11    33     0     8    0
amappl15   192       40    0       38     1     0     1     1     0     8    0
amappl14   184      200    0      184     2     1     1     2     0     8    0
amappl13   176        9    0        9     1     1     0     1     0     8    0
amappl12   168     6547    0     6516     3     1     2     2     0     8    0
amappl11   160       56    0       42     1     0     1     1     0     8    0
amappl10   152       53    0       38     1     0     1     1     0     8    0
amappl9    144      186    0      186     2     2     0     1     0     8    0
amappl8    136      444    0      317     5     0     5     5     0     8    0
amappl7    128       82    0       66     1     0     1     1     0     8    0
amappl6    120      429    0      409     2     1     1     2     0     8    0
amappl5    112      257    0      242     1     0     1     1     0     8    0
amappl4    104      620    0      576     3     1     2     3     0     8    0
amappl3     96    31618    0    31538     3     0     3     3     0     8    0
amappl2     88     6410    0     6330     4     2     2     4     0     8    0
amappl1     80    27847    0    27303    25    12    13    23     0     8    0
amappl      88    49068    0    48846     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      104    0       29     2     0     2     2     0     8    0
uaddrrnd    24     5851    0     5796     1     0     1     1     0     8    0
uaddrbest   32        2    0        0     1     0     1     1     0     8    0
uaddr       24     5851    0     5796     1     0     1     1     0     8    0
vmmpekpl   168    37862    0    37798     4     0     4     4     0     8    0
vmmpepl    168   341597    0   339464   168    66   102   121     0   357    0
vmsppl     448     5850    0     5795     7     0     7     7     0     8    0
rwobjpl     56    85228    0    77894   109     5   104   108     0     8    0
pdppl      4096   11709    0    11618   189    93    96    97     0     8    5
pvpl        32    48740    0        0   397     3   394   395     0   265    0
pmappl     248     5850    0     5795     5     1     4     4     0     8    0
extentpl    40       56    0       38     1     0     1     1     0     8    0
phpool     112      647    0      140    15     0    15    15     0     8    0
ddb{0}> machine ddbcpu 0
Invalid cpu 0
ddb{0}> trace
db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff8294bad2) at panic+0x17b sys/kern/subr_prf.c:198
__assert(ffffffff82902c71,ffffffff828a53db,4e8,ffffffff82953413) at __assert+0x29 sys/kern/subr_prf.c:157
uvm_pageunwire(fffffd80077a2980) at uvm_pageunwire+0x16b sys/uvm/uvm_page.c:1256
uvm_fault_unwire_locked(fffffd807d592568,207549f8000,20754bf7000) at uvm_fault_unwire_locked+0x242 sys/uvm/uvm_fault.c:1695
uvm_unmap_kill_entry_withlock(fffffd807d592568,fffffd806b8c7ae8,0) at uvm_unmap_kill_entry_withlock+0x6b sys/uvm/uvm_map.c:1925
uvm_map_teardown(fffffd807d592568) at uvm_map_teardown+0x1c7 uvm_map_addr_RBT_LEFT sys/uvm/uvm_map.h:176 [inline]
uvm_map_teardown(fffffd807d592568) at uvm_map_teardown+0x1c7 sys/uvm/uvm_map.c:2565
uvmspace_free(fffffd807d592568) at uvmspace_free+0xa6 sys/uvm/uvm_map.c:3497
reaper(ffff80002a145ff8) at reaper+0x19a sys/kern/kern_exit.c:463
end trace frame: 0x0, count: -9
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
__mp_lock(ffffffff82e5b348) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline]
__mp_lock(ffffffff82e5b348) at __mp_lock+0x122 sys/kern/kern_lock.c:147
syscall(ffff80002a20c790) at syscall+0x522 mi_syscall sys/sys/syscall_mi.h:183 [inline]
syscall(ffff80002a20c790) at syscall+0x522 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x79c8a9f1d180, count: 9
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
__mp_lock(ffffffff82e5b348) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline]
__mp_lock(ffffffff82e5b348) at __mp_lock+0x122 sys/kern/kern_lock.c:147
syscall(ffff80002a20c790) at syscall+0x522 mi_syscall sys/sys/syscall_mi.h:183 [inline]
syscall(ffff80002a20c790) at syscall+0x522 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x79c8a9f1d180, count: -6

Crashes (144):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/03/19 01:27 openbsd a69db6767cfd 6ee49f2e .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore assert "uvm_page_owner_locked_p(pg)" failed in uvm_page.c
2024/03/17 14:39 openbsd d108608d837e 6ee49f2e .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore assert "uvm_page_owner_locked_p(pg)" failed in uvm_page.c
2024/03/15 15:13 openbsd 5807f0156439 6ee49f2e .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main assert "uvm_page_owner_locked_p(pg)" failed in uvm_page.c
2024/03/15 13:54 openbsd 4bf41e636617 6ee49f2e .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main assert "uvm_page_owner_locked_p(pg)" failed in uvm_page.c
2024/03/09 00:57 openbsd 0ef4c01d20d2 6ee49f2e .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main assert "uvm_page_owner_locked_p(pg)" failed in uvm_page.c
2024/03/07 02:08 openbsd 17449d5ce459 f39a7eed .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main assert "uvm_page_owner_locked_p(pg)" failed in uvm_page.c
2024/03/04 10:51 openbsd a782303f51d4 0f110c12 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main assert "uvm_page_owner_locked_p(pg)" failed in uvm_page.c
2024/03/03 02:28 openbsd 6a91963006cc 25905f5d .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main assert "uvm_page_owner_locked_p(pg)" failed in uvm_page.c
2024/02/26 02:15 openbsd c737cf90c555 8d446f15 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore assert "uvm_page_owner_locked_p(pg)" failed in uvm_page.c
2024/02/21 15:46 openbsd 8a1eddeadba3 9e510875 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore assert "uvm_page_owner_locked_p(pg)" failed in uvm_page.c
2024/02/19 10:56 openbsd 50c1ea79ce0c 578f7538 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore assert "uvm_page_owner_locked_p(pg)" failed in uvm_page.c
2024/02/19 08:14 openbsd 50c1ea79ce0c 578f7538 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main assert "uvm_page_owner_locked_p(pg)" failed in uvm_page.c
2024/02/18 20:38 openbsd 357c6b751ff9 578f7538 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore assert "uvm_page_owner_locked_p(pg)" failed in uvm_page.c
2024/02/05 17:58 openbsd 889f10797414 e23e8c20 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main assert "uvm_page_owner_locked_p(pg)" failed in uvm_page.c
2024/02/05 02:19 openbsd ea15225f4d09 a67b2c42 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore assert "uvm_page_owner_locked_p(pg)" failed in uvm_page.c
2024/02/04 02:02 openbsd 51dce3f82dc5 a67b2c42 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main assert "uvm_page_owner_locked_p(pg)" failed in uvm_page.c
2024/01/31 14:18 openbsd 1039ba604aa3 373b66cd .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore assert "uvm_page_owner_locked_p(pg)" failed in uvm_page.c
2024/01/21 06:56 openbsd 1b9db5f20e8d 9bd8dcda .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main assert "uvm_page_owner_locked_p(pg)" failed in uvm_page.c
2024/01/20 22:44 openbsd e7a417afe28e 9bd8dcda .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main assert "uvm_page_owner_locked_p(pg)" failed in uvm_page.c
2024/01/19 14:55 openbsd 59674edd175d 9bd8dcda .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore assert "uvm_page_owner_locked_p(pg)" failed in uvm_page.c
2024/01/19 03:48 openbsd cca106ce4b38 21772ce4 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main assert "uvm_page_owner_locked_p(pg)" failed in uvm_page.c
2024/01/14 05:47 openbsd b51570b5eca2 551587c1 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main assert "uvm_page_owner_locked_p(pg)" failed in uvm_page.c
2024/01/10 13:03 openbsd 5b7944c191c0 04815ef1 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main assert "uvm_page_owner_locked_p(pg)" failed in uvm_page.c
2024/01/10 00:52 openbsd 29ae6bbdbe85 b438bd66 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main assert "uvm_page_owner_locked_p(pg)" failed in uvm_page.c
2023/12/23 03:49 openbsd 29ea0b8ea69a fb427a07 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main assert "uvm_page_owner_locked_p(pg)" failed in uvm_page.c
2023/12/16 23:07 openbsd 362346d46a77 3222d10c .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main assert "uvm_page_owner_locked_p(pg)" failed in uvm_page.c
2023/12/12 15:36 openbsd bb79c4302255 ebcad15c .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore assert "uvm_page_owner_locked_p(pg)" failed in uvm_page.c
2023/12/06 12:56 openbsd 39fe8e223e62 95293603 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore assert "uvm_page_owner_locked_p(pg)" failed in uvm_page.c
2023/11/26 16:37 openbsd 4359fbd8d6ec 5b429f39 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main assert "uvm_page_owner_locked_p(pg)" failed in uvm_page.c
2023/11/21 14:49 openbsd 4ca0067f0867 cb976f63 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore assert "uvm_page_owner_locked_p(pg)" failed in uvm_page.c
2023/09/14 22:25 openbsd f50a451da581 0b6a67ac .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore assert "uvm_page_owner_locked_p(pg)" failed in uvm_page.c
2023/09/11 23:54 openbsd 425ecdb789c9 59da8366 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore assert "uvm_page_owner_locked_p(pg)" failed in uvm_page.c
2023/08/21 01:16 openbsd 7927db41a2d7 d216d8a0 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore assert "uvm_page_owner_locked_p(pg)" failed in uvm_page.c
2023/08/19 09:15 openbsd 02d561d09200 d216d8a0 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main assert "uvm_page_owner_locked_p(pg)" failed in uvm_page.c
2023/08/13 22:22 openbsd 6201e9b13c6e 39990d51 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main assert "uvm_page_owner_locked_p(pg)" failed in uvm_page.c
2023/07/30 16:01 openbsd d0c03c4f4dd4 2a0d0f29 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore assert "uvm_page_owner_locked_p(pg)" failed in uvm_page.c
2023/07/29 04:55 openbsd af69e4fc35eb 92476829 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore assert "uvm_page_owner_locked_p(pg)" failed in uvm_page.c
2023/07/21 13:27 openbsd de626851fd0e abdf9bae .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore assert "uvm_page_owner_locked_p(pg)" failed in uvm_page.c
2023/07/19 13:42 openbsd f6f278519334 022df2bb .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main assert "uvm_page_owner_locked_p(pg)" failed in uvm_page.c
2023/07/10 08:55 openbsd 55fdb5fa9e71 668cb1fa .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main assert "uvm_page_owner_locked_p(pg)" failed in uvm_page.c
2023/07/03 09:14 openbsd fb769bc01050 49fef1e5 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main assert "uvm_page_owner_locked_p(pg)" failed in uvm_page.c
2023/06/28 22:05 openbsd 40542d6faa80 ca69c785 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main assert "uvm_page_owner_locked_p(pg)" failed in uvm_page.c
2023/06/26 02:31 openbsd a1b63ed3f3de 79782afc .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main assert "uvm_page_owner_locked_p(pg)" failed in uvm_page.c
2023/06/25 18:00 openbsd 55a13683696a 79782afc .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main assert "uvm_page_owner_locked_p(pg)" failed in uvm_page.c
2023/06/23 09:35 openbsd 6405be196b8a 79782afc .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore assert "uvm_page_owner_locked_p(pg)" failed in uvm_page.c
2023/06/22 17:17 openbsd 616e5b7b85b4 79782afc .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main assert "uvm_page_owner_locked_p(pg)" failed in uvm_page.c
2021/12/27 07:33 openbsd b5f6de732cb5 e4f103c4 .config console log report ci-openbsd-multicore assert "uvm_page_owner_locked_p(pg)" failed in uvm_page.c
* Struck through repros no longer work on HEAD.