syzbot


panic: Bad link elm ADDR next->prev != elm (2)

Status: auto-closed as invalid on 2020/04/22 16:29
Reported-by: syzbot+2b4eab66d748b01f26a0@syzkaller.appspotmail.com
First crash: 1764d, last: 1764d
Similar bugs (2)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
freebsd panic: Bad link elm ADDR next->prev != elm (3) C 97 1178d 1600d 0/2 closed as dup on 2021/09/07 22:53
freebsd panic: Bad link elm ADDR next->prev != elm 11 2012d 2029d 0/2 auto-closed as invalid on 2019/10/25 08:44

Sample crash report:
panic: Bad link elm 0xfffff8003ae78000 next->prev != elm
cpuid = 1
time = 1579796900
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x47/frame 0xfffffe00244a1650
vpanic() at vpanic+0x1ce/frame 0xfffffe00244a16c0
panic() at panic+0x43/frame 0xfffffe00244a1720
sctp_inpcb_free() at sctp_inpcb_free+0x1749/frame 0xfffffe00244a1790
sctp_close() at sctp_close+0x12f/frame 0xfffffe00244a17c0
soclose() at soclose+0x23e/frame 0xfffffe00244a1850
_fdrop() at _fdrop+0x38/frame 0xfffffe00244a1880
closef() at closef+0x2c6/frame 0xfffffe00244a1910
fdescfree_fds() at fdescfree_fds+0xa4/frame 0xfffffe00244a1960
fdescfree() at fdescfree+0x60f/frame 0xfffffe00244a1a30
exit1() at exit1+0x765/frame 0xfffffe00244a1aa0
sys_sys_exit() at sys_sys_exit+0xd/frame 0xfffffe00244a1ab0
ia32_syscall() at ia32_syscall+0x48c/frame 0xfffffe00244a1bf0
int0x80_syscall_common() at int0x80_syscall_common+0x9c
KDB: enter: panic
[ thread pid 2104 tid 100100 ]
Stopped at      kdb_enter+0x67: movq    $0,0x1466d26(%rip)
db> 
db> set $lines = 0
db> set $maxwidth = 0
db> show registers
cs                        0x20
ds                        0x3b  ll+0x1a
es                        0x3b  ll+0x1a
fs                        0x13
gs                        0x1b
ss                           0
rax                       0x12
rcx         0xffffffff810ba280  vprintf+0x140
rdx                        0x1
rbx                          0
rsp         0xfffffe00244a1630
rbp         0xfffffe00244a1650
rsi                          0
rdi         0xffffffff810ba2b6  vprintf+0x176
r8                           0
r9                  0xffffffff
r10                          0
r11         0xfffff8003ad334f0
r12         0xffffffff82068d90  ddb_dbbe
r13                          0
r14         0xffffffff8193773f
r15         0xffffffff8193773f
rip         0xffffffff810af377  kdb_enter+0x67
rflags                0x200086  kernphys+0x86
kdb_enter+0x67: movq    $0,0x1466d26(%rip)
db> show proc
Process 2104 (syz-executor.2) at 0xfffff8003a34ca60:
 state: NORMAL
 uid: 0  gids: 0, 0, 5
 parent: pid 778 at 0xfffff8003a5c4a60
 ABI: FreeBSD ELF32
 arguments: /root/syz-executor.2
 reaper: 0xfffff800032fa530 reapsubtree: 1
 sigparent: 20
 vmspace: 0xfffff8003a3fa000
   (map 0xfffff8003a3fa000)
   (map.pmap 0xfffff8003a3fa0c0)
   (pmap 0xfffff8003a3fa120)
 threads: 1
100100                   Run     CPU 1                       syz-executor.2
db> ps
  pid  ppid  pgrp   uid  state   wmesg   wchan               cmd
 2106   784   784     0  S       (threaded)                  syz-executor.3
100271                   S       nanslp  0xffffffff824feca0  syz-executor.3
100991                   S       connec  0xfffff80003e89800  syz-executor.3
100995                   S       connec  0xfffff80003e84800  syz-executor.3
100998                   S       connec  0xfffff80003e87478  syz-executor.3
100999                   S       uwait   0xfffff80003a5c980  syz-executor.3
 2105   768   768     0  S       (threaded)                  syz-executor.0
100455                   S       nanslp  0xffffffff824feca1  syz-executor.0
100992                   S       connec  0xfffff80003e840f0  syz-executor.0
100997                   S       uwait   0xfffff8003af03080  syz-executor.0
 2104   778   778     0  RE      CPU 1                       syz-executor.2
 1625  1618  1625     0  Ss      select  0xfffff8003a3a3140  dhclient
 1622     1  1622     0  Ss      select  0xfffff8003a3a3040  dhclient
 1618  1607   422    65  S       select  0xfffff80003f366c0  dhclient
 1607   422   422     0  S       wait    0xfffff8003600d000  sh
  784   766   784     0  Ss      nanslp  0xffffffff824feca1  syz-executor.3
  778   766   778     0  Ss      nanslp  0xffffffff824feca1  syz-executor.2
  769   766   769     0  Ss      piperd  0xfffff80003da68e8  syz-executor.1
  768   766   768     0  Ss      nanslp  0xffffffff824feca0  syz-executor.0
  766   764   764     0  S       (threaded)                  syz-fuzzer
100103                   S       uwait   0xfffff80003a5a180  syz-fuzzer
100104                   S       uwait   0xfffff80003ce4100  syz-fuzzer
100105                   S       uwait   0xfffff80003ce4200  syz-fuzzer
100106                   S       uwait   0xfffff80003ce4300  syz-fuzzer
100107                   S       uwait   0xfffff80003ce4400  syz-fuzzer
100108                   S       kqread  0xfffff80003b3d000  syz-fuzzer
100109                   S       uwait   0xfffff80003ce3b80  syz-fuzzer
100110                   S       uwait   0xfffff80003ce3c80  syz-fuzzer
100111                   S       uwait   0xfffff80003a5a280  syz-fuzzer
100113                   S       uwait   0xfffff80003ce3d80  syz-fuzzer
100114                   S       uwait   0xfffff80003ce3e80  syz-fuzzer
  764   762   764     0  Ss      pause   0xfffff8003a34c0a8  csh
  762   680   762     0  Ss      select  0xfffff8003a3a3dc0  sshd
  746     1   746     0  Ss+     ttyin   0xfffff800033f7cb0  getty
  745     1   745     0  Ss+     ttyin   0xfffff800033f8cb0  getty
  744     1   744     0  Ss+     ttyin   0xfffff80003ac20b0  getty
  743     1   743     0  Ss+     ttyin   0xfffff80003ac24b0  getty
  742     1   742     0  Ss+     ttyin   0xfffff80003ac28b0  getty
  741     1   741     0  Ss+     ttyin   0xfffff80003ac2cb0  getty
  740     1   740     0  Ss+     ttyin   0xfffff80003ac30b0  getty
  739     1   739     0  Ss+     ttyin   0xfffff80003ac34b0  getty
  738     1   738     0  Ss+     ttyin   0xfffff80003ac38b0  getty
  684     1   684     0  Ss      nanslp  0xffffffff824feca1  cron
  680     1   680     0  Ss      select  0xfffff8003a3700c0  sshd
  493     1   493     0  Ss      select  0xfffff8003a268ac0  syslogd
  422     1   422     0  Ss      wait    0xfffff80003e33a60  devd
  421     1   421    65  Ss      select  0xfffff8003a268b40  dhclient
  336     1   336     0  Ss      select  0xfffff8003a268c40  dhclient
  333     1   333     0  Ss      select  0xfffff8003a3701c0  dhclient
   21     0     0     0  DL      vlruwt  0xfffff80003b01a60  [vnlru]
   20     0     0     0  DL      syncer  0xffffffff825d5118  [syncer]
   19     0     0     0  DL      (threaded)                  [bufdaemon]
100065                   D       qsleep  0xffffffff825d4618  [bufdaemon]
100070                   D       -       0xffffffff8200a980  [bufspacedaemon-0]
100082                   D       sdflush 0xfffff80003d058e8  [/ worker]
   18     0     0     0  DL      psleep  0xffffffff825f0088  [vmdaemon]
   17     0     0     0  DL      (threaded)                  [pagedaemon]
100063                   D       psleep  0xffffffff8261cfd8  [dom0]
100068                   D       launds  0xffffffff8261cfe4  [laundry: dom0]
100069                   D       umarcl  0xffffffff8153d760  [uma]
   16     0     0     0  DL      -       0xffffffff82359530  [rand_harvestq]
   15     0     0     0  DL      waiting 0xffffffff826625a0  [sctp_iterator]
    9     0     0     0  DL      -       0xffffffff825d401c  [soaiod4]
    8     0     0     0  DL      -       0xffffffff825d401c  [soaiod3]
    7     0     0     0  DL      -       0xffffffff825d401c  [soaiod2]
    6     0     0     0  DL      -       0xffffffff825d401c  [soaiod1]
    5     0     0     0  DL      (threaded)                  [cam]
100031                   D       -       0xffffffff82234940  [doneq0]
100062                   D       -       0xffffffff82234808  [scanner]
    4     0     0     0  DL      crypto_ 0xfffff800031f8e90  [crypto returns 1]
    3     0     0     0  DL      crypto_ 0xfffff800031f8e30  [crypto returns 0]
    2     0     0     0  DL      crypto_ 0xffffffff825ea0f8  [crypto]
   14     0     0     0  DL      seqstat 0xfffff80003362888  [sequencer 00]
   13     0     0     0  DL      (threaded)                  [geom]
100022                   D       -       0xffffffff8261b608  [g_event]
100023                   D       -       0xffffffff8261b618  [g_up]
100024                   D       -       0xffffffff8261b610  [g_down]
   12     0     0     0  WL      (threaded)                  [intr]
100006                   I                                   [swi5: fast taskq]
100010                   I                                   [swi6: task queue]
100011                   I                                   [swi6: Giant taskq]
100017                   I                                   [swi3: vm]
100018                   I                                   [swi4: clock (0)]
100019                   I                                   [swi4: clock (1)]
100020                   I                                   [swi1: netisr 0]
100032                   I                                   [irq24: virtio_pci0]
100033                   I                                   [irq25: virtio_pci0]
100034                   I                                   [irq26: virtio_pci0]
100035                   I                                   [irq27: virtio_pci0]
100036                   I                                   [irq28: virtio_pci1]
100037                   I                                   [irq29: virtio_pci1]
100038                   I                                   [irq30: virtio_pci1]
100039                   I                                   [irq31: virtio_pci1]
100040                   I                                   [irq32: virtio_pci1]
100045                   I                                   [irq10: virtio_pci2]
100047                   I                                   [irq1: atkbd0]
100048                   I                                   [irq12: psm0]
100049                   I                                   [swi0: uart uart++]
   11     0     0     0  RL      (threaded)                  [idle]
100003                   Run     CPU 0                       [idle: cpu0]
100004                   CanRun                              [idle: cpu1]
    1     0     1     0  SLs     wait    0xfffff800032fa530  [init]
   10     0     0     0  DL      audit_w 0xffffffff82663230  [audit]
    0     0     0     0  DLs     (threaded)                  [kernel]
100000                   D       swapin  0xffffffff82609bf8  [swapper]
100005                   D       -       0xfffff8000333d000  [thread taskq]
100007                   D       -       0xfffff8000333cd00  [kqueue_ctx taskq]
100008                   D       -       0xfffff8000333cc00  [config_0]
100009                   D       -       0xfffff8000333cb00  [aiod_kick taskq]
100012                   D       -       0xfffff8000333c800  [if_config_tqg_0]
100013                   D       -       0xfffff8000333c700  [if_io_tqg_0]
100014                   D       -       0xfffff8000333c600  [if_io_tqg_1]
100015                   D       -       0xfffff8000333c500  [softirq_0]
100016                   D       -       0xfffff8000333c400  [softirq_1]
100021                   D       -       0xfffff8000333c300  [firmware taskq]
100026                   D       -       0xfffff8000333c200  [crypto_0]
100027                   D       -       0xfffff8000333c200  [crypto_1]
100041                   D       -       0xfffff8000333c000  [vtnet0 rxq 0]
100042                   D       -       0xfffff8000333be00  [vtnet0 txq 0]
100043                   D       -       0xfffff8000333bd00  [vtnet0 rxq 1]
100044                   D       -       0xfffff8000333bc00  [vtnet0 txq 1]
100046                   D       vtbslp  0xfffff800034d4400  [virtio_balloon]
100050                   D       -       0xfffff8000333bb00  [mca taskq]
100055                   D       -       0xffffffff81cdb260  [deadlkres]
100057                   D       -       0xfffff80003b3d100  [acpi_task_0]
100058                   D       -       0xfffff80003b3d100  [acpi_task_1]
100059                   D       -       0xfffff80003b3d100  [acpi_task_2]
100061                   D       -       0xfffff8000333c100  [CAM taskq]
db> show all locks
Process 2104 (syz-executor.2) thread 0xfffff80003f7d6e0 (100100)
exclusive sleep mutex sctp-inp (inp) r = 0 (0xfffff8003ae78468) locked @ /syzkaller/managers/i386/kernel/sys/netinet/sctp_pcb.c:3335
exclusive rw sctp-info (sctp-info) r = 0 (0xfffffe0004958b50) locked @ /syzkaller/managers/i386/kernel/sys/netinet/sctp_pcb.c:3333
exclusive sleep mutex sctp-create (inp_create) r = 0 (0xfffff8003ae78488) locked @ /syzkaller/managers/i386/kernel/sys/netinet/sctp_pcb.c:3332
db> show malloc
              Type        InUse        MemUse     Requests
            devbuf         4213         4851K         4241
             vtbuf           24         1968K           46
         sysctloid        26527         1553K        26591
              kobj          332         1328K          488
            newblk            9         1026K         1800
          vfscache            4         1025K            4
               pcb           49          566K         1772
          inodedep           31          527K         1308
         ufs_quota            1          512K            1
          vfs_hash            1          512K            1
           callout            2          512K            2
              intr            4          388K            4
           subproc          134          249K         2193
            acpica         1674          185K        49750
         vnet_data            1          168K            1
          filedesc           19          133K         2479
           pagedep           10          131K         1238
        tfo_ccache            1          128K            1
               sem            4          106K            4
            DEVFS1          105          105K          122
            linker          221           89K          252
               bus          988           79K         3332
          mtx_pool            2           72K            2
          syncache            1           68K            1
          acpitask            1           64K            1
       ddb_capture            1           64K            1
            module          494           62K          494
              umtx          340           43K          340
               BPF           22           36K           22
               shm            2           34K            8
        gtaskqueue           22           34K           22
           kdtrace          173           34K         6185
         hostcache            1           32K            1
            DEVFS3          124           31K          134
               msg            4           30K            4
        DEVFS_RULE           56           27K           56
            ifaddr           71           24K           73
            kbdmux            6           22K            6
              vmem            3           19K            4
           lltable           47           18K           56
              temp           34           17K         1949
         ufs_mount            3           17K            4
              proc            3           17K            3
               tty           16           16K           16
           tidhash            1           16K            1
         sctp_timw           57           15K           57
           ithread           89           15K           89
       ether_multi          172           14K          177
            bus-sc           30           14K         1394
         sctp_atcl           25           13K         1355
            KTRACE          100           13K          100
             ifnet            7           13K            7
         sctp_stro           12           12K          608
              kenv           95           12K           99
      eventhandler          123           11K          123
         in6_multi           89           11K           89
         pfs_nodes           20           10K           20
              GEOM           60           10K          487
              rman           82           10K          423
         bmsafemap            2            9K         1277
           devstat            4            9K            4
              UART           12            9K           12
               rpc            2            8K            2
             shmfd            1            8K            1
       pfs_vncache            1            8K            1
          routetbl           58            8K           62
     audit_evclass          231            8K          289
              cred           28            7K          230
           CAM DEV            3            6K          510
            kqueue           54            6K         2117
                vt           11            6K           11
            plimit           21            6K          351
            sglist            5            6K            5
         CAM queue            5            6K         1528
       ufs_dirhash           24            5K           24
            DEVFSP           72            5K           76
         taskqueue           42            5K           42
           memdesc            1            4K            1
               MCA           32            4K           32
             evdev            4            4K            4
          kcovinfo           64            4K           68
               UMA          234            4K          234
            select           28            4K           28
             hhook           13            4K           13
           session           25            4K           38
              pgrp           25            4K           40
           acpisem           22            3K           22
          freefile           22            3K         1236
          terminal           11            3K           11
            dirrem           21            3K         1238
         proc-args           44            3K          572
           uidinfo            4            3K            5
          sctp_ifa           17            3K           17
        local_apic            1            2K            1
           io_apic            1            2K            1
         ipsec-saq            2            2K            2
             lockf           19            2K           29
            ip6ndp           12            2K           21
            Unitno           28            2K         1787
           CAM XPT           22            2K          543
         sctp_atky           37            2K         1967
          in_multi            6            2K            7
           acpidev           20            2K           20
            crypto            2            2K            2
               msi            9            2K            9
               tun            7            2K            7
          freework            5            2K         1232
             mkdir            8            1K         2452
          freeblks            4            1K         1231
       ipsecpolicy            1            1K            1
            sahead            1            1K            1
          secasvar            1            1K            1
             clone            8            1K            8
       vnodemarker            2            1K           29
      NFSD session            1            1K            1
        CAM periph            4            1K          271
               mld            6            1K            6
          sctp_ifn            6            1K            6
              igmp            6            1K            6
         toponodes            6            1K            6
            isadev            6            1K            6
             mount           16            1K           86
          pci_link           10            1K           10
           CAM SIM            2            1K            2
           softdep            1            1K            1
            diradd            4            1K         1271
              pfil            4            1K            4
    chacha20random            1            1K            1
             epoch            4            1K            4
              cdev            2            1K            2
 encap_export_host            8            1K            8
         sctp_athm           25            1K         1358
          sctp_map           24            1K         1216
         newdirblk            5            1K         1226
               osd            3            1K            9
       inpcbpolicy            8            1K          477
            vnodes            1            1K            2
      NFSD lckfile            1            1K            1
     NFSD V4client            1            1K            1
             DEVFS            9            1K           10
            soname            8            1K         6702
            feeder            7            1K            7
        loginclass            3            1K            3
          CAM path            4            1K         1034
            apmdev            1            1K            1
          atkbddev            2            1K            2
          pmchooks            1            1K            1
            prison            4            1K            4
     CAM dev queue            2            1K            2
 CAM I/O Scheduler            1            1K            1
          nexusdev            5            1K            5
           entropy            2            1K           38
           tcpfunc            1            1K            1
          sctp_vrf            1            1K            1
              vnet            1            1K            1
          acpiintr            1            1K            1
               pmc            1            1K            1
              cpus            2            1K            2
    vnet_data_free            1            1K            1
           Per-cpu            1            1K            1
          filecaps            2            1K           92
          p1003.1b            1            1K            1
           CAM CCB            0            0K         2046
        madt_table            0            0K            2
               PUC            0            0K            0
          ppbusdev            0            0K            0
agtiapi_MemAlloc malloc            0            0K            0
    osti_cacheable            0            0K            0
          tempbuff            0            0K            0
          tempbuff            0            0K            0
            pvscsi            0            0K            0
          smartpqi            0            0K            0
ag_tgt_map_t malloc            0            0K            0
ag_slr_map_t malloc            0            0K            0
lDevFlags * malloc            0            0K            0
tiDeviceHandle_t * malloc            0            0K            0
ag_portal_data_t malloc            0            0K            0
ag_device_t malloc            0            0K            0
     STLock malloc            0            0K            0
          CCB List            0            0K            0
              iavf            0            0K            0
               ixl            0            0K            0
            sr_iov            0            0K            0
               OCS            0            0K            0
               OCS            0            0K            0
              nvme            0            0K            0
               nvd            0            0K            0
            netmap            0            0K            0
            mwldev            0            0K            0
        MVS driver            0            0K            0
       fpukern_ctx            0            0K            0
          xen_intr            0            0K            0
     CAM ccb queue            0            0K            0
           xen_hvm            0            0K            0
         legacydrv            0            0K            0
            qpidrv            0            0K            0
          mrsasbuf            0            0K            0
          mpt_user            0            0K            0
      dmar_idpgtbl            0            0K            0
          dmar_dom            0            0K            0
          dmar_ctx            0            0K            0
       dmar_dmamap            0            0K            0
          mps_user            0            0K            0
            MPSSAS            0            0K            0
              isci            0            0K            0
           bxe_ilt            0            0K            0
            xenbus            0            0K            0
     vm_fictitious            0            0K            0
               mps            0            0K            0
          mpr_user            0            0K            0
            MPRSAS            0            0K            0
           UMAHash            0            0K            0
         vm_pgdata            0            0K            0
           jblocks            0            0K            0
          savedino            0            0K          456
          sentinel            0            0K            0
            jfsync            0            0K            0
            jtrunc            0            0K            0
             sbdep            0            0K           10
           jsegdep            0            0K            0
              jseg            0            0K            0
         jfreefrag            0            0K            0
          jfreeblk            0            0K            0
           jnewblk            0            0K            0
            jmvref            0            0K            0
           jremref            0            0K            0
           jaddref            0            0K            0
           freedep            0            0K            0
          freefrag            0            0K            5
        allocindir            0            0K            0
          indirdep            0            0K           10
       allocdirect            0            0K            0
          ufs_trim            0            0K            0
           mactemp            0            0K            0
     audit_trigger            0            0K            0
 audit_pipe_presel            0            0K            0
     audit_pipeent            0            0K            0
        audit_pipe            0            0K            0
      audit_evname            0            0K            0
         audit_bsm            0            0K            0
      audit_gidset            0            0K            0
        audit_text            0            0K            0
        audit_path            0            0K            0
        audit_data            0            0K            0
        audit_cred            0            0K            0
             xform            0            0K            0
               NLM            0            0K            0
 nfsclient_nlminfo            0            0K            0
    nfsclient_lock            0            0K            0
           NFS FHA            0            0K            0
    ipsec-spdcache            0            0K            0
         ipsec-reg            0            0K            0
        ipsec-misc            0            0K            0
      ipsecrequest            0            0K            0
            ip6opt            0            0K           10
       ip6_msource            0            0K            0
      ip6_moptions            0            0K            0
       in6_mfilter            0            0K            0
             frag6            0            0K            0
            tcplog            0            0K            0
               LRO            0            0K            0
        sctp_mcore            0            0K            0
        sctp_socko            0            0K          510
         sctp_iter            0            0K            9
         sctp_mvrf            0            0K            0
         sctp_cpal            0            0K            0
         sctp_cmsg            0            0K            0
         sctp_stre            0            0K            0
         sctp_athi            0            0K            0
         sctp_a_it            0            0K            9
         sctp_aadr            0            0K            0
         sctp_stri            0            0K            0
      newreno data            0            0K            0
        ip_msource            0            0K            0
       ip_moptions            0            0K            6
        in_mfilter            0            0K            0
              ipid            0            0K            0
         80211scan            0            0K            0
      80211ratectl            0            0K            0
        80211power            0            0K            0
       80211nodeie            0            0K            0
         80211node            0            0K            0
      80211mesh_gt            0            0K            0
      80211mesh_rt            0            0K            0
         80211perr            0            0K            0
         80211prep            0            0K            0
         80211preq            0            0K            0
          80211dfs            0            0K            0
       80211crypto            0            0K            0
          80211vap            0            0K            0
             iflib            0            0K            0
              vlan            0            0K            0
               gif            0            0K            0
           ifdescr            0            0K            0
              zlib            0            0K            0
           fadvise            0            0K            0
               mpr            0            0K            0
            statfs            0            0K         1403
       export_host            0            0K            0
        cl_savebuf            0            0K            2
            biobuf            0            0K            0
              aios            0            0K            0
               lio            0            0K            0
               acl            0            0K            0
            mfibuf            0            0K            0
          mbuf_tag            0            0K          128
              accf            0            0K            0
               pts            0            0K            0
               iov            0            0K        14201
          ioctlops            0            0K          114
           Witness            0            0K            0
             stack            0            0K            0
        md_sectors            0            0K            0
              sbuf            0            0K          288
           md_disk            0            0K            0
        compressor            0            0K            0
           malodev            0            0K            0
              SWAP            0            0K            0
               LED            0            0K            0
         sysctltmp            0            0K          583
            sysctl            0            0K            1
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              rctl            0            0K            0
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                ix            0            0K            0
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            iirbuf            0            0K            0
             cache            0            0K            0
       aacraid_buf            0            0K            0
      prison_racct            0            0K            0
       Fail Points            0            0K            0
             sigio            0            0K            5
filedesc_to_leader            0            0K            0
       tty console            0            0K            0
            aaccam            0            0K            0
            aacbuf            0            0K            0
              zstd            0            0K            0
            nvlist            0            0K            0
          SCSI ENC            0            0K            0
           SCSI sa            0            0K            0
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     tr_raid5_data            0            0K            0
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     tr_raid0_data            0            0K            0
    tr_concat_data            0            0K            0
       md_sii_data            0            0K            0
   md_promise_data            0            0K            0
    md_nvidia_data            0            0K            0
   md_jmicron_data            0            0K            0
     md_intel_data            0            0K            0
       md_ddf_data            0            0K            0
         raid_data            0            0K           72
     geom_flashmap            0            0K            0
         newnfsmnt            0            0K            0
  newnfsclient_req            0            0K            0
   NFSCL layrecall            0            0K            0
     NFSCL session            0            0K            0
     NFSCL sockreq            0            0K            0
     NFSCL devinfo            0            0K            0
     NFSCL flayout            0            0K            0
      NFSCL layout            0            0K            0
     NFSD rollback            0            0K            0
NFSCL diroffdiroff            0            0K            0
       NEWdirectio            0            0K            0
        NEWNFSnode            0            0K            0
         NFSCL lck            0            0K            0
      NFSCL lckown            0            0K            0
      NFSCL client            0            0K            0
       NFSCL deleg            0            0K            0
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            NFS fh            0            0K            0
           NFS req            0            0K            0
     NFSD usrgroup            0            0K            0
       NFSD string            0            0K            0
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      NFSD V4state            0            0K            0
     NFSD srvcache            0            0K            0
       msdosfs_fat            0            0K            0
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            DEVFS4            0            0K            0
            DEVFS2            0            0K            0
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         ciss_data            0            0K            0
               xnb            0            0K            0
              xbbd            0            0K            0
               xbd            0            0K            0
           Balloon            0            0K            0
          sysmouse            0            0K            0
            vtfont            0            0K            0
           ath_hal            0            0K            0
            athdev            0            0K            0
           ata_pci            0            0K            0
           ata_dma            0            0K            0
       ata_generic            0            0K            0
               amr            0            0K            0
           scsi_da            0            0K           69
            ata_da            0            0K            0
           scsi_ch            0            0K            0
           scsi_cd            0            0K            0
            USBdev            0            0K            0
               USB            0            0K            0
       AHCI driver            0            0K            0
               agp            0            0K            0
           nvme_da            0            0K            0
           acpipwr            0            0K            0
            twsbuf            0            0K            0
      twe_commands            0            0K            0
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       tcp_log_dev            0            0K            0
      midi buffers            0            0K            0
             mixer            0            0K            0
              ac97            0            0K            0
             hdacc            0            0K            0
              hdac            0            0K            0
              hdaa            0            0K            0
         acpi_perf            0            0K            0
         acpicmbat            0            0K            0
       SIIS driver            0            0K            0
db> show ktr
No such command; use "help" to list available commands

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2020/01/23 16:28 freebsd 0c28589a816b 19066232 console log report ci-freebsd-i386
* Struck through repros no longer work on HEAD.