syzbot


panic: witness_warn

Status: fixed on 2020/07/01 21:53
Reported-by: syzbot+df7899c55c4cc52f5447@syzkaller.appspotmail.com
Fix commit: e54b7cd007b5 Fix the cleanup handling in a error path for TCP BBR.
First crash: 966d, last: 966d
similar bugs (1):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
freebsd panic: witness_warn (2) 29 451d 452d 2/2 fixed on 2021/11/13 06:29

Sample crash report:
panic: witness_warn
cpuid = 1
time = 1592247917
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x47/frame 0xfffffe0025a1d8b0
vpanic() at vpanic+0x1c7/frame 0xfffffe0025a1d910
panic() at panic+0x43/frame 0xfffffe0025a1d970
witness_warn() at witness_warn+0x6ea/frame 0xfffffe0025a1da40
userret() at userret+0x4ac/frame 0xfffffe0025a1dab0
ia32_syscall() at ia32_syscall+0x416/frame 0xfffffe0025a1dbf0
int0x80_syscall_common() at int0x80_syscall_common+0x9c/frame 0xfbf78f78
KDB: enter: panic
[ thread pid 883 tid 100199 ]
Stopped at      kdb_enter+0x67: movq    $0,0x14a52d6(%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                       0x80  ll+0x5f
rdx         0xffffffff8195e8a8
rbx                          0
rsp         0xfffffe0025a1d890
rbp         0xfffffe0025a1d8b0
rsi                        0x1
rdi                          0
r8                           0
r9                  0xffffffff
r10                          0
r11         0xfffffe0025893d10
r12         0xffffffff82068f70  ddb_dbbe
r13                          0
r14         0xffffffff819a9130
r15         0xffffffff819a9130
rip         0xffffffff810b4917  kdb_enter+0x67
rflags                0x200086  kernphys+0x86
kdb_enter+0x67: movq    $0,0x14a52d6(%rip)
db> show proc
Process 883 (syz-executor.0) at 0xfffff8001677f520:
 state: NORMAL
 uid: 0  gids: 0, 0, 5
 parent: pid 781 at 0xfffff80016438520
 ABI: FreeBSD ELF32
 arguments: /root/syz-executor.0
 reaper: 0xfffff80003318000 reapsubtree: 1
 sigparent: 20
 vmspace: 0xfffffe002587c000
   (map 0xfffffe002587c000)
   (map.pmap 0xfffffe002587c0c0)
   (pmap 0xfffffe002587c120)
 threads: 6
100141                   Run     CPU 0                       syz-executor.0
100184                   S       connec  0xfffffe00239b0478  syz-executor.0
100189                   S       connec  0xfffffe00239b0b88  syz-executor.0
100196                   S       connec  0xfffffe00239b0b88  syz-executor.0
100198                   S       uwait   0xfffff800166fc880  syz-executor.0
100199                   Run     CPU 1                       syz-executor.0
db> ps
  pid  ppid  pgrp   uid  state   wmesg   wchan               cmd
  887   777   777     0  R       (threaded)                  syz-executor.3
100171                   RunQ                                syz-executor.3
100200                   S       connec  0xfffffe00239b00f0  syz-executor.3
  886   778   778     0  R       (threaded)                  syz-executor.2
100133                   RunQ                                syz-executor.2
100194                   S       connec  0xfffffe00239b2800  syz-executor.2
100195                   S       uwait   0xfffff80016810280  syz-executor.2
  885   775   775     0  R       (threaded)                  syz-executor.1
100117                   RunQ                                syz-executor.1
100190                   S       connec  0xfffffe00239afd30  syz-executor.1
100193                   S       uwait   0xfffff80016826c00  syz-executor.1
  883   781   781     0  R       (threaded)                  syz-executor.0
100141                   Run     CPU 0                       syz-executor.0
100184                   S       connec  0xfffffe00239b0478  syz-executor.0
100189                   S       connec  0xfffffe00239b0b88  syz-executor.0
100196                   S       connec  0xfffffe00239b0b88  syz-executor.0
100198                   S       uwait   0xfffff800166fc880  syz-executor.0
100199                   Run     CPU 1                       syz-executor.0
  870     1   870     0  Ss      select  0xfffff80003da34c0  rtsol
  869     1   869     0  Ss      select  0xfffff800164c7740  rtsol
  868     1   868     0  Ss      select  0xfffff80003da35c0  rtsol
  865   788   424     0  S       kqread  0xfffff80003345800  rtsol
  788   780   424     0  S       wait    0xfffff80003c5ea40  sh
  781   773   781     0  Rs                                  syz-executor.0
  780   424   424     0  S       wait    0xfffff80016437520  sh
  778   773   778     0  Rs                                  syz-executor.2
  777   773   777     0  Rs                                  syz-executor.3
  775   773   775     0  Rs                                  syz-executor.1
  773   771   771     0  S       (threaded)                  syz-execprog
100091                   S       kqread  0xfffff80003345500  syz-execprog
100107                   S       uwait   0xfffff800039f8600  syz-execprog
100108                   S       uwait   0xfffff800039f8700  syz-execprog
100109                   S       uwait   0xfffff800039f8800  syz-execprog
100110                   S       uwait   0xfffff800039f8900  syz-execprog
100111                   S       uwait   0xfffff800039f5680  syz-execprog
100112                   S       uwait   0xfffff800037c0880  syz-execprog
100114                   S       uwait   0xfffff800166fce80  syz-execprog
100119                   S       uwait   0xfffff800030f9500  syz-execprog
100121                   S       uwait   0xfffff800039f5380  syz-execprog
  771   769   771     0  Ss      pause   0xfffff80003c5e5c8  csh
  769   682   769     0  Ss      select  0xfffff800164c7ac0  sshd
  748     1   748     0  Ss+     ttyin   0xfffff800037b98b0  getty
  747     1   747     0  Ss+     ttyin   0xfffff80003b35cb0  getty
  746     1   746     0  Ss+     ttyin   0xfffff80003b384b0  getty
  745     1   745     0  Ss+     ttyin   0xfffff80003b38cb0  getty
  744     1   744     0  Ss+     ttyin   0xfffff800033c64b0  getty
  743     1   743     0  Ss+     ttyin   0xfffff800033c6cb0  getty
  742     1   742     0  Ss+     ttyin   0xfffff800033c54b0  getty
  741     1   741     0  Ss+     ttyin   0xfffff800033c5cb0  getty
  740     1   740     0  Ss+     ttyin   0xfffff800033c84b0  getty
  738     1    24     0  S+      piperd  0xfffff80003c6c000  logger
  737   736    24     0  S+      nanslp  0xffffffff8252f1f0  sleep
  736     1    24     0  S+      wait    0xfffff80003cee000  sh
  686     1   686     0  Ss      nanslp  0xffffffff8252f1f1  cron
  682     1   682     0  Ss      select  0xfffff800039e15c0  sshd
  495     1   495     0  Ss      select  0xfffff80003da3f40  syslogd
  424     1   424     0  Ss      wait    0xfffff80003cdfa40  devd
  423     1   423    65  Ss      select  0xfffff800039e1540  dhclient
  338     1   338     0  Ss      select  0xfffff800039e13c0  dhclient
  335     1   335     0  Ss      select  0xfffff80003dc0040  dhclient
   23     0     0     0  DL      vlruwt  0xfffff800033ef520  [vnlru]
   22     0     0     0  DL      syncer  0xffffffff8261a458  [syncer]
   21     0     0     0  DL      (threaded)                  [bufdaemon]
100069                   D       qsleep  0xffffffff826197a0  [bufdaemon]
100076                   D       -       0xffffffff8200aa00  [bufspacedaemon-0]
100087                   D       sdflush 0xfffff80003cedce8  [/ worker]
   20     0     0     0  DL      psleep  0xffffffff82640788  [vmdaemon]
   19     0     0     0  DL      (threaded)                  [pagedaemon]
100067                   D       psleep  0xffffffff82634c18  [dom0]
100074                   D       launds  0xffffffff82634c24  [laundry: dom0]
100075                   D       umarcl  0xffffffff8154f240  [uma]
   18     0     0     0  DL      -       0xffffffff82362e58  [rand_harvestq]
   17     0     0     0  DL      pftm    0xffffffff82bd63a0  [pf purge]
   16     0     0     0  DL      waiting 0xffffffff8261cbd0  [sctp_iterator]
   15     0     0     0  DL      -       0xffffffff82618dac  [soaiod4]
    9     0     0     0  DL      -       0xffffffff82618dac  [soaiod3]
    8     0     0     0  DL      -       0xffffffff82618dac  [soaiod2]
    7     0     0     0  DL      -       0xffffffff82618dac  [soaiod1]
    6     0     0     0  DL      (threaded)                  [cam]
100033                   D       -       0xffffffff8223abc0  [doneq0]
100066                   D       -       0xffffffff8223aa90  [scanner]
    5     0     0     0  DL      crypto_ 0xfffff80003347690  [crypto returns 1]
    4     0     0     0  DL      crypto_ 0xfffff80003347630  [crypto returns 0]
    3     0     0     0  DL      crypto_ 0xffffffff82632400  [crypto]
   14     0     0     0  DL      seqstat 0xfffff800030e0488  [sequencer 00]
   13     0     0     0  DL      (threaded)                  [geom]
100024                   D       -       0xffffffff8250e180  [g_event]
100025                   D       -       0xffffffff8250e188  [g_up]
100026                   D       -       0xffffffff8250e190  [g_down]
    2     0     0     0  DL      (threaded)                  [KTLS]
100017                   D       -       0xfffff800030f7c00  [thr_0]
100018                   D       -       0xfffff800030f7c40  [thr_1]
   12     0     0     0  LL      (threaded)                  [intr]
100010                   I                                   [swi5: fast taskq]
100013                   I                                   [swi6: task queue]
100014                   I                                   [swi6: Giant taskq]
100019                   I                                   [swi4: clock (0)]
100020                   I                                   [swi4: clock (1)]
100021                   I                                   [swi3: vm]
100022                   I                                   [swi1: netisr 0]
100034                   I                                   [irq24: virtio_pci0]
100035                   I                                   [irq25: virtio_pci0]
100036                   I                                   [irq26: virtio_pci0]
100037                   I                                   [irq27: virtio_pci0]
100038                   I                                   [irq28: virtio_pci1]
100039                   I                                   [irq29: virtio_pci1]
100040                   I                                   [irq30: virtio_pci1]
100041                   I                                   [irq31: virtio_pci1]
100042                   I                                   [irq32: virtio_pci1]
100047                   I                                   [irq10: virtio_pci2]
100049                   I                                   [irq1: atkbd0]
100050                   I                                   [irq12: psm0]
100051                   I                                   [swi0: uart uart++]
100060                   I                                   [swi1: pf send]
100072                   L      *so_snd  0xfffff800039f3c00  [swi1: hpts]
100073                   I                                   [swi1: hpts]
   11     0     0     0  RL      (threaded)                  [idle]
100003                   CanRun                              [idle: cpu0]
100004                   CanRun                              [idle: cpu1]
    1     0     1     0  SLs     wait    0xfffff80003318000  [init]
   10     0     0     0  DL      audit_w 0xffffffff826328d8  [audit]
    0     0     0     0  DLs     (threaded)                  [kernel]
100000                   D       swapin  0xffffffff8250e710  [swapper]
100005                   D       -       0xfffff80003215e00  [if_config_tqg_0]
100006                   D       -       0xfffff80003215d00  [softirq_0]
100007                   D       -       0xfffff80003215c00  [softirq_1]
100008                   D       -       0xfffff80003215b00  [if_io_tqg_0]
100009                   D       -       0xfffff80003215a00  [if_io_tqg_1]
100011                   D       -       0xfffff8000334a000  [kqueue_ctx taskq]
100012                   D       -       0xfffff80003347e00  [aiod_kick taskq]
100015                   D       -       0xfffff80003347b00  [in6m_free taskq]
100016                   D       -       0xfffff80003347a00  [thread taskq]
100023                   D       -       0xfffff80003347900  [firmware taskq]
100028                   D       -       0xfffff80003347700  [crypto_0]
100029                   D       -       0xfffff80003347700  [crypto_1]
100043                   D       -       0xfffff80003347400  [vtnet0 rxq 0]
100044                   D       -       0xfffff80003347300  [vtnet0 txq 0]
100045                   D       -       0xfffff80003347200  [vtnet0 rxq 1]
100046                   D       -       0xfffff80003347100  [vtnet0 txq 1]
100048                   D       vtbslp  0xfffff8000351a580  [virtio_balloon]
100052                   D       -       0xfffff80003347000  [mca taskq]
100057                   D       -       0xffffffff81d4e800  [deadlkres]
100061                   D       -       0xfffff80003b26300  [acpi_task_0]
100062                   D       -       0xfffff80003b26300  [acpi_task_1]
100063                   D       -       0xfffff80003b26300  [acpi_task_2]
100065                   D       -       0xfffff80003347500  [CAM taskq]
db> show all locks
Process 883 (syz-executor.0) thread 0xfffffe0025899500 (100199)
exclusive sleep mutex so_snd (so_snd) r = 0 (0xfffffe00239b0cf0) locked @ /syzkaller/managers/i386/kernel/sys/modules/tcp/bbr/../../../netinet/tcp_stacks/bbr.c:12523
Process 12 (intr) thread 0xfffffe0004b96700 (100072)
exclusive rw tcpinp (tcpinp) r = 0 (0xfffff800162c4d78) locked @ /syzkaller/managers/i386/kernel/sys/netinet/tcp_hpts.c:1272
db> show malloc
              Type        InUse        MemUse     Requests
           pf_hash            5        11524K            5
            devbuf         4212         4850K         4237
          tcp_hpts            5         3201K            5
             vtbuf           24         1968K           46
         sysctloid        27849         1625K        27913
              kobj          334         1336K          493
            newblk          369         1116K          426
          vfscache            4         1025K            4
          inodedep           86          555K          109
               pcb           30          537K          126
         ufs_quota            1          512K            1
          vfs_hash            1          512K            1
           callout            2          512K            2
              intr            4          472K            4
           subproc          142          281K          970
            acpica         1674          185K        55859
         vnet_data            1          168K            1
          filedesc           21          149K          103
           pagedep           26          135K           47
        tfo_ccache            1          128K            1
               sem            4          106K            4
            DEVFS1          105          105K          122
            linker          239           96K          280
               bus         1000           80K         3392
          mtx_pool            2           72K            2
          syncache            1           68K            1
          acpitask            1           64K            1
       ddb_capture            1           64K            1
            module          501           63K          501
              umtx          324           41K          324
           kdtrace          193           37K         1909
              temp           35           33K         1836
         hostcache            1           32K            1
               shm            1           32K            1
            DEVFS3          124           31K          134
               msg            4           30K            4
        DEVFS_RULE           56           27K           56
        gtaskqueue           18           26K           18
            ifaddr           72           24K           72
              vmem            3           22K            4
            kbdmux            6           22K            6
               BPF           14           19K           14
           lltable           47           18K           47
         ufs_mount            4           17K            5
              proc            3           17K            3
               tty           16           16K           16
           tidhash            1           16K            1
           ithread           98           16K           98
       ether_multi          172           14K          177
            bus-sc           30           14K         1439
            KTRACE          100           13K          100
             ifnet            7           13K            7
              kenv           95           12K           99
      eventhandler          132           12K          132
         in6_multi           89           11K           89
         pfs_nodes           20           10K           20
              GEOM           60           10K          487
              rman           82           10K          423
            dirrem           34            9K           45
         bmsafemap            3            9K           79
            kqueue           64            9K          894
              UART           12            9K           12
           devstat            4            9K            4
               rpc            2            8K            2
             shmfd            1            8K            1
       pfs_vncache            1            8K            1
     audit_evclass          233            8K          291
            diradd           49            7K           77
           CAM DEV            3            6K          510
                vt           11            6K           11
              cred           22            6K          235
            plimit           21            6K          350
            sglist            5            6K            5
         CAM queue            5            6K         1528
         taskqueue           45            5K           45
       ufs_dirhash           24            5K           24
          pf_ifnet           10            5K           19
           memdesc            1            4K            1
               MCA           32            4K           32
               UMA          248            4K          248
             evdev            4            4K            4
          routetbl           23            4K           23
             mkdir           27            4K           74
           session           27            4K           38
              pgrp           27            4K           38
             hhook           13            4K           13
           acpisem           22            3K           22
          terminal           11            3K           11
         proc-args           49            3K          546
          indirdep           10            3K           10
           uidinfo            3            3K            8
          freefile           17            3K           26
          sctp_ifa           17            3K           17
            select           17            3K           17
        local_apic            1            2K            1
           io_apic            1            2K            1
         newdirblk           16            2K           37
         ipsec-saq            2            2K            2
            ip6ndp           12            2K           21
            Unitno           29            2K           45
           CAM XPT           22            2K          543
             lockf           15            2K           22
          in_multi            6            2K            7
           acpidev           20            2K           20
               msi            9            2K            9
               tun            7            2K            7
           softdep            1            1K            1
       ipsecpolicy            1            1K            1
            sahead            1            1K            1
          secasvar            1            1K            1
             clone            8            1K            8
       vnodemarker            2            1K            6
      NFSD session            1            1K            1
        CAM periph            4            1K          271
               mld            6            1K            6
          sctp_ifn            6            1K            6
              igmp            6            1K            6
             nhops            6            1K            6
         toponodes            6            1K            6
            isadev            6            1K            6
             mount           16            1K           86
          pci_link           10            1K           10
            crypto            3            1K            3
              pfil            4            1K            4
    chacha20random            1            1K            1
           CAM SIM            2            1K            2
             epoch            4            1K            4
              cdev            2            1K            2
       inpcbpolicy           14            1K          220
 encap_export_host            8            1K            8
            DEVFSP            6            1K            6
               osd            3            1K            9
            vnodes            1            1K            1
      NFSD lckfile            1            1K            1
     NFSD V4client            1            1K            1
             DEVFS            9            1K           10
            feeder            7            1K            7
            soname           10            1K         5951
        loginclass            3            1K            7
     CAM dev queue            2            1K            2
 CAM I/O Scheduler            1            1K            1
            apmdev            1            1K            1
          atkbddev            2            1K            2
          CAM path            4            1K         1034
           tcpfunc            2            1K            2
              ktls            1            1K            1
          pmchooks            1            1K            1
            prison            4            1K            4
          filecaps            4            1K           78
          nexusdev            5            1K            5
           entropy            2            1K           41
          freework            1            1K           43
          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
          p1003.1b            1            1K            1
          pf_table            0            0K            0
           pf_rule            0            0K            0
           pf_altq            0            0K            0
           pf_osfp            0            0K            0
           pf_temp            0            0K            0
           ath_hal            0            0K            0
        madt_table            0            0K            2
            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
            pvscsi            0            0K            0
          smartpqi            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
              iavf            0            0K            0
               ixl            0            0K            0
           nvme_da            0            0K            0
           acpipwr            0            0K            0
            twsbuf            0            0K            0
      twe_commands            0            0K            0
      twa_commands            0            0K            0
       tcp_log_dev            0            0K            0
        ice-resmgr            0            0K            0
         ice-osdep            0            0K            0
               ice            0            0K            0
       fpukern_ctx            0            0K            0
      midi buffers            0            0K            0
          xen_intr            0            0K            0
             mixer            0            0K            0
           xen_hvm            0            0K            0
         legacydrv            0            0K            0
            qpidrv            0            0K            0
              ac97            0            0K            0
             hdacc            0            0K            0
      dmar_idpgtbl            0            0K            0
          dmar_dom            0            0K            0
          dmar_ctx            0            0K            0
       dmar_dmamap            0            0K            0
              hdac            0            0K            0
              hdaa            0            0K            0
         acpi_perf            0            0K            0
              isci            0            0K            0
     hyperv_socket            0            0K            0
           bxe_ilt            0            0K            0
            xenbus            0            0K            0
         acpicmbat            0            0K            0
       SIIS driver            0            0K            0
     vm_fictitious            0            0K            0
           CAM CCB            0            0K         1777
               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
           UMAHash            0            0K            0
ag_tgt_map_t malloc            0            0K            0
ag_slr_map_t malloc            0            0K            0
         vm_pgdata            0            0K            0
           jblocks            0            0K            0
          savedino            0            0K           13
          sentinel            0            0K            0
            jfsync            0            0K            0
            jtrunc            0            0K            0
             sbdep            0            0K            2
           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
          freeblks            0            0K           42
          freefrag            0            0K            5
        allocindir            0            0K            0
       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
    ipsec-spdcache            0            0K            0
         ipsec-reg            0            0K            0
        ipsec-misc            0            0K            0
      ipsecrequest            0            0K            0
            ip6opt            0            0K            4
       ip6_msource            0            0K            0
      ip6_moptions            0            0K            0
       in6_mfilter            0            0K            0
             frag6            0            0K            0
            tcplog            0            0K            0
lDevFlags * malloc            0            0K            0
               LRO            0            0K            0
        sctp_mcore            0            0K            0
        sctp_socko            0            0K            0
         sctp_iter            0            0K            7
         sctp_mvrf            0            0K            0
         sctp_timw            0            0K            0
         sctp_cpal            0            0K            0
         sctp_cmsg            0            0K            0
         sctp_stre            0            0K            0
         sctp_athi            0            0K            0
         sctp_athm            0            0K            0
         sctp_atky            0            0K            0
         sctp_atcl            0            0K            0
         sctp_a_it            0            0K            7
         sctp_aadr            0            0K            0
         sctp_stro            0            0K            0
         sctp_stri            0            0K            0
          sctp_map            0            0K            0
      newreno data            0            0K            0
        ip_msource            0            0K            0
       ip_moptions            0            0K            0
        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
tiDeviceHandle_t * malloc            0            0K            0
            statfs            0            0K          217
       export_host            0            0K            0
        cl_savebuf            0            0K            2
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
            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
     CAM ccb queue            0            0K            0
          mrsasbuf            0            0K            0
          mpt_user            0            0K            0
          mps_user            0            0K            0
            biobuf            0            0K            0
              aios            0            0K            0
               lio            0            0K            0
               acl            0            0K            0
            MPSSAS            0            0K            0
          mbuf_tag            0            0K          109
              accf            0            0K            0
               pts            0            0K            0
               iov            0            0K        13396
          ioctlops            0            0K           98
           Witness            0            0K            0
             stack            0            0K            0
               mps            0            0K            0
          mpr_user            0            0K            0
            MPRSAS            0            0K            0
               mpr            0            0K            0
            mfibuf            0            0K            0
        md_sectors            0            0K            0
              sbuf            0            0K          288
           md_disk            0            0K            0
          firmware            0            0K            0
        compressor            0            0K            0
           malodev            0            0K            0
              SWAP            0            0K            0
               LED            0            0K            0
         sysctltmp            0            0K          582
            sysctl            0            0K            1
              ekcd            0            0K            0
            dumper            0            0K            0
          sendfile            0            0K            0
              rctl            0            0K            0
          ix_sriov            0            0K            0
        aacraidcam            0            0K            0
                ix            0            0K            0
            ipsbuf            0            0K            0
            iirbuf            0            0K            0
             cache            0            0K            0
       aacraid_buf            0            0K            0
          kcovinfo            0            0K            0
      prison_racct            0            0K            0
       Fail Points            0            0K            0
             sigio            0            0K            1
filedesc_to_leader            0            0K            0
               pwd            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
        isofs_node            0            0K            0
       isofs_mount            0            0K            0
     tr_raid5_data            0            0K            0
    tr_raid1e_data            0            0K            0
     tr_raid1_data            0            0K            0
     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
           NFS FHA            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
        NFSCL open            0            0K            0
       NFSCL owner            0            0K            0
            NFS fh            0            0K            0
           NFS req            0            0K            0
     NFSD usrgroup            0            0K            0
       NFSD string            0            0K            0
       NFSD V4lock            0            0K            0
      NFSD V4state            0            0K            0
     NFSD srvcache            0            0K            0
       msdosfs_fat            0            0K            0
     msdosfs_mount            0            0K            0
      msdosfs_node            0            0K            0
            DEVFS4            0            0K            0
            DEVFS2            0            0K            0
            gntdev            0            0K            0
       privcmd_dev            0            0K            0
        evtchn_dev            0            0K            0
          xenstore            0            0K            0
         scsi_pass            0            0K            0
         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
db> show uma
              Zone   Size    Used    Free    Requests  Sleeps  Bucket  Total Mem    XFree
      mbuf_cluster   2048    9018     126        9018       0     254   18726912        0
       mbuf_packet    256    8192     698       22318       0     254    2275840        0
               512    512    4200      32        4201       0      30    2166784        0
          BUF TRIE    144     166   13330         436       0      62    1943424        0
              4096   4096     400       6        1836       0       2    1662976        0
               128    128    9258     197       14980       0     126    1210240        0
   mbuf_jumbo_page   4096       0     254          10       0     254    1040384        0
              pbuf    832       0     969           0       0       2     806208        0
       UMA Slabs 0    112    6243      15        6243       0     126     700896        0
             tcpcb   1040       8     509          46       0     254     537680        0
            socket    904      30     483        1296       0     254     463752        0
             65536  65536       6       0           6       0       1     393216        0
        RADIX NODE    144    2353     192       22562       0      62     366480        0
         VM OBJECT    264    1106      64       14334       0      30     308880        0
             VNODE    488     554      46         583       0      30     292800        0
            THREAD   1792     140      22         200       0       8     290304        0
        256 Bucket   2048     122      14         351       0       8     278528        0
              mbuf    256     471     554       46908       0     254     262400        0
             ripcb    488       4     508           7       0     254     249856        0
         tcp_inpcb    488       8     504          46       0     254     249856        0
         udp_inpcb    488       2     510         167       0     254     249856        0
             16384  16384      12       2          53       0       1     229376        0
                64     64    2766     321        3868       0     254     197568        0
             65536  65536       1       2          72       0       1     196608        0
               128    128    1298     221       25639       0     126     194432        0
                16     16   11712     288       12042       0     254     192000        0
         UMA Zones    768     222       4         222       0      16     173568        0
              1024   1024     133      27         151       0      16     163840        0
       FFS2 dinode    256     520     110         546       0      62     161280        0
                32     32    4432     482        4661       0     254     157248        0
       tcp_bbr_map    128     596     551        5483       0     126     146816        0
         MAP ENTRY     96    1210     302       42872       0     126     145152        0
             65536  65536       2       0           2       0       1     131072        0
             unpcb    256      14     496        1050       0     254     130560        0
               256    256     370     140         445       0      62     130560        0
           VMSPACE   2536      37      11         871       0       4     121728        0
          ksiginfo    112      52     992          71       0     126     116928        0
         vmem btag     56    1860     215        1860       0     254     116200        0
              2048   2048      11      45        2552       0       8     114688        0
              PROC   1312      59      22         887       0       8     106272        0
               128    128     585     190        1548       0     126      99200        0
               256    256     340      35        1298       0      62      96000        0
         FFS inode    160     520      55         547       0      62      92000        0
        128 Bucket   1024      44      39         254       0      16      84992        0
         filedesc0   1088      60      17         888       0       8      83776        0
               128    128     493     158         563       0     126      83328        0
          UMA Kegs    384     208       7         208       0      30      82560        0
       S VFS Cache    108     611     145        1169       0     126      81648        0
             g_bio    408       0     180        4759       0      30      73440        0
              1024   1024      10      58         281       0      16      69632        0
                64     64     619     452       14733       0     254      68544        0
               128    128     320     207         403       0     126      67456        0
             65536  65536       0       1         112       0       1      65536        0
             32768  32768       2       0           2       0       1      65536        0
             16384  16384       3       1           4       0       1      65536        0
              4096   4096      15       1          28       0       2      65536        0
               512    512      86      42         407       0      30      65536        0
               512    512     107      13         248       0      30      61440        0
              8192   8192       6       1           8       0       1      57344        0
              4096   4096      12       2          16       0       2      57344        0
                64     64     349     470        1241       0     254      52416        0
                64     64     459     360         695       0     254      52416        0
               256    256     109      86         259       0      62      49920        0
         32 Bucket    256      32     163         394       0      62      49920        0
           DIRHASH   1024      34      14          34       0      16      49152        0
             NAMEI   1024       0      48       12591       0      16      49152        0
          syncache    168       0     264           5       0     254      44352        0
              8192   8192       4       1          32       0       1      40960        0
            clpbuf    832       0      48          86       0      16      39936        0
         64 Bucket    512      59      13         453       0      30      36864        0
             selfd     64      36     531        4292       0     254      36288        0
                64     64      12     555          26       0     254      36288        0
                64     64      12     555          36       0     254      36288        0
                64     64      34     533          73       0     254      36288        0
                64     64      33     534         106       0     254      36288        0
               128    128      19     260          77       0     126      35712        0
               128    128      13     266          14       0     126      35712        0
               128    128      62     217          67       0     126      35712        0
     routing nhops    256      16     119          38       0      62      34560        0
           ttyoutq    256      72      63         160       0      62      34560        0
               256    256      34     101         421       0      62      34560        0
               256    256      26     109         701       0      62      34560        0
               256    256      64      71         156       0      62      34560        0
               256    256      21     114        1301       0      62      34560        0
               256    256      69      66         660       0      62      34560        0
             32768  32768       1       0           1       0       1      32768        0
             32768  32768       0       1         112       0       1      32768        0
              2048   2048       4      12          16       0       8      32768        0
              2048   2048       7       9           8       0       8      32768        0
              2048   2048       3      13         194       0       8      32768        0
              1024   1024       2      30          31       0      16      32768        0
              1024   1024       9      23        1017       0      16      32768        0
              1024   1024       4      28          23       0      16      32768        0
               512    512       1      63           8       0      30      32768        0
               512    512       4      60          34       0      30      32768        0
               512    512      35      29          36       0      30      32768        0
               512    512       2      62         510       0      30      32768        0
     mt_stats_zone     64     443      69         443       0     254      32768        0
           64 pcpu      8    3729     367        3731       0     254      32768        0
            ttyinq    160     135      65         300       0      62      32000        0
       tcp_bbr_pcb    832       5      31          39       0      16      29952        0
            cpuset    104       7     272           7       0     126      29016        0
        sctp_laddr     48       0     588          16       0     254      28224        0
         hostcache     96       1     293           1       0     254      28224        0
                32     32     313     569         375       0     254      28224        0
          4 Bucket     48      14     574        5504       0     254      28224        0
        KMAP ENTRY     96      12     279          12       0     126      27936        0
           rtentry    208      34      99          38       0      62      27664        0
              pipe    760      19      16         337       0      16      26600        0
         TURNSTILE    136     163      26         163       0      62      25704        0
              8192   8192       3       0           3       0       1      24576        0
              4096   4096       2       4         219       0       2      24576        0
          rl_entry     40      39     567          39       0     254      24240        0
          8 Bucket     80      33     267        4253       0     126      24000        0
       Mountpoints   2816       2       6           2       0       4      22528        0
        SLEEPQUEUE     88     163      93         163       0     126      22528        0
             udpcb     32       2     628         167       0     254      20160        0
               PWD     32      18     612         127       0     254      20160

Crashes (1):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets Title
ci-freebsd-i386 2020/06/15 19:17 freebsd ad49a04033c5 8e3ab941 console log report syz
* Struck through repros no longer work on HEAD.