panic: sleeping without a lock

panic: sleeping without a lock
Status: fixed on 2020/12/04 16:55
Reported-by: syzbot+e625d92c1dd74e402c81@syzkaller.appspotmail.com
Fix commit: ccc7c37f kern: soclose: don't sleep on SO_LINGER w/ timeout=0
First crash: 209d, last: 43d

Sample crash report:
login: panic: sleeping without a lock
cpuid = 1
time = 1593795045
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x47/frame 0xfffffe0025585680
vpanic() at vpanic+0x1c7/frame 0xfffffe00255856e0
panic() at panic+0x43/frame 0xfffffe0025585740
_sleep() at _sleep+0x5fe/frame 0xfffffe00255857f0
soclose() at soclose+0x1da/frame 0xfffffe0025585870
_fdrop() at _fdrop+0x38/frame 0xfffffe00255858a0
closef() at closef+0x28b/frame 0xfffffe0025585930
fdescfree_fds() at fdescfree_fds+0xb4/frame 0xfffffe0025585980
fdescfree() at fdescfree+0x582/frame 0xfffffe0025585a40
exit1() at exit1+0x6c5/frame 0xfffffe0025585ab0
sys_sys_exit() at sys_sys_exit+0xd/frame 0xfffffe0025585ac0
amd64_syscall() at amd64_syscall+0x262/frame 0xfffffe0025585bf0
fast_syscall_common() at fast_syscall_common+0x101/frame 0xfffffe0025585bf0
--- syscall (1, FreeBSD ELF64, sys_sys_exit), rip = 0x29122a, rsp = 0x7fffffffea08, rbp = 0x7fffffffea20 ---
KDB: enter: panic
[ thread pid 796 tid 100092 ]
Stopped at      kdb_enter+0x67: movq    $0,0x14a3736(%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                        0x28  ll+0x7
rax                       0x12
rcx                       0x80  ll+0x5f
rdx         0xffffffff81904f01
rbx                          0
rsp         0xfffffe0025585660
rbp         0xfffffe0025585680
rsi                        0x1
rdi                          0
r8                           0
r9                  0xffffffff
r10                        0x1
r11         0xfffffe001cfd5a10
r12         0xffffffff82068f70  ddb_dbbe
r13                          0
r14         0xffffffff819a96a1
r15         0xffffffff819a96a1
rip         0xffffffff810b64f7  kdb_enter+0x67
rflags                    0x86  ll+0x65
kdb_enter+0x67: movq    $0,0x14a3736(%rip)
db> show proc
Process 796 (syz-executor0959781) at 0xfffff800103b8a40:
 state: NORMAL
 uid: 0  gids: 0, 0, 5
 parent: pid 773 at 0xfffff80010436000
 ABI: FreeBSD ELF64
 arguments: ./syz-executor095978184
 reaper: 0xfffff80003310000 reapsubtree: 1
 sigparent: 20
 vmspace: 0xfffffe0023bbb3d0
   (map 0xfffffe0023bbb3d0)
   (map.pmap 0xfffffe0023bbb490)
   (pmap 0xfffffe0023bbb4f0)
 threads: 1
100092                   Run     CPU 1                       syz-executor0959781
db> ps
  pid  ppid  pgrp   uid  state   wmesg   wchan               cmd
  796   773   771     0  RE      CPU 1                       syz-executor0959781
  773   771   771     0  S       nanslp  0xffffffff8252f240  syz-executor0959781
  771   769   771     0  Ss      pause   0xfffff80003310ae8  csh
  769   682   769     0  Ss      select  0xfffff80003d49a40  sshd
  748     1   748     0  Ss+     ttyin   0xfffff80003806cb0  getty
  747     1   747     0  Ss+     ttyin   0xfffff80003b06cb0  getty
  746     1   746     0  Ss+     ttyin   0xfffff80003b090b0  getty
  745     1   745     0  Ss+     ttyin   0xfffff80003b094b0  getty
  744     1   744     0  Ss+     ttyin   0xfffff80003b098b0  getty
  743     1   743     0  Ss+     ttyin   0xfffff80003b09cb0  getty
  742     1   742     0  Ss+     ttyin   0xfffff80003b080b0  getty
  741     1   741     0  Ss+     ttyin   0xfffff80003b084b0  getty
  740     1   740     0  Ss+     ttyin   0xfffff80003b088b0  getty
  738     1    24     0  S+      piperd  0xfffff80003cbbbe0  logger
  737   736    24     0  S+      nanslp  0xffffffff8252f241  sleep
  736     1    24     0  S+      wait    0xfffff80003d31a40  sh
  686     1   686     0  Ss      nanslp  0xffffffff8252f240  cron
  682     1   682     0  Ss      select  0xfffff80003bf4340  sshd
  495     1   495     0  Ss      select  0xfffff80003d49cc0  syslogd
  424     1   424     0  Ss      select  0xfffff80003d49e40  devd
  423     1   423    65  Ss      select  0xfffff80003d49ec0  dhclient
  338     1   338     0  Ss      select  0xfffff80003c45440  dhclient
  335     1   335     0  Ss      select  0xfffff80003c454c0  dhclient
   23     0     0     0  DL      syncer  0xffffffff8261a498  [syncer]
   22     0     0     0  DL      vlruwt  0xfffff800033eca40  [vnlru]
   21     0     0     0  DL      (threaded)                  [bufdaemon]
100069                   D       qsleep  0xffffffff826197e0  [bufdaemon]
100076                   D       -       0xffffffff8200aa00  [bufspacedaemon-0]
100087                   D       sdflush 0xfffff8000342c4e8  [/ worker]
   20     0     0     0  DL      psleep  0xffffffff82640708  [vmdaemon]
   19     0     0     0  DL      (threaded)                  [pagedaemon]
100067                   D       psleep  0xffffffff82634b98  [dom0]
100074                   D       launds  0xffffffff82634ba4  [laundry: dom0]
100075                   D       umarcl  0xffffffff8154f350  [uma]
   18     0     0     0  RL      CPU 0                       [rand_harvestq]
   17     0     0     0  DL      pftm    0xffffffff82c583a0  [pf purge]
   16     0     0     0  DL      waiting 0xffffffff8261cc10  [sctp_iterator]
   15     0     0     0  DL      -       0xffffffff82618dec  [soaiod4]
    9     0     0     0  DL      -       0xffffffff82618dec  [soaiod3]
    8     0     0     0  DL      -       0xffffffff82618dec  [soaiod2]
    7     0     0     0  DL      -       0xffffffff82618dec  [soaiod1]
    6     0     0     0  DL      (threaded)                  [cam]
100033                   D       -       0xffffffff8223abc0  [doneq0]
100066                   D       -       0xffffffff8223aa90  [scanner]
    5     0     0     0  DL      crypto_ 0xfffff80003212d90  [crypto returns 1]
    4     0     0     0  DL      crypto_ 0xfffff80003212d30  [crypto returns 0]
    3     0     0     0  DL      crypto_ 0xffffffff82632440  [crypto]
   14     0     0     0  DL      seqstat 0xfffff800030d5488  [sequencer 00]
   13     0     0     0  DL      (threaded)                  [geom]
100024                   D       -       0xffffffff8250e1c0  [g_event]
100025                   D       -       0xffffffff8250e1c8  [g_up]
100026                   D       -       0xffffffff8250e1d0  [g_down]
    2     0     0     0  DL      (threaded)                  [KTLS]
100017                   D       -       0xfffff80003093700  [thr_0]
100018                   D       -       0xfffff80003093740  [thr_1]
   12     0     0     0  WL      (threaded)                  [intr]
100012                   I                                   [swi6: task queue]
100013                   I                                   [swi6: Giant taskq]
100016                   I                                   [swi5: fast taskq]
100019                   I                                   [swi3: vm]
100020                   I                                   [swi1: netisr 0]
100021                   I                                   [swi4: clock (0)]
100022                   I                                   [swi4: clock (1)]
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                   I                                   [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    0xfffff80003310000  [init]
   10     0     0     0  DL      audit_w 0xffffffff82632858  [audit]
    0     0     0     0  DLs     (threaded)                  [kernel]
100000                   D       swapin  0xffffffff8250e750  [swapper]
100005                   D       -       0xfffff80003356100  [softirq_0]
100006                   D       -       0xfffff80003356000  [softirq_1]
100007                   D       -       0xfffff80003357e00  [if_io_tqg_0]
100008                   D       -       0xfffff80003357d00  [if_io_tqg_1]
100009                   D       -       0xfffff80003357c00  [if_config_tqg_0]
100010                   D       -       0xfffff80003351800  [kqueue_ctx taskq]
100011                   D       -       0xfffff80003351700  [aiod_kick taskq]
100014                   D       -       0xfffff80003351200  [in6m_free taskq]
100015                   D       -       0xfffff80003351100  [thread taskq]
100023                   D       -       0xfffff8000334e900  [firmware taskq]
100028                   D       -       0xfffff8000334e800  [crypto_0]
100029                   D       -       0xfffff8000334e800  [crypto_1]
100043                   D       -       0xfffff8000334e200  [vtnet0 rxq 0]
100044                   D       -       0xfffff8000334e100  [vtnet0 txq 0]
100045                   D       -       0xfffff8000334e000  [vtnet0 rxq 1]
100046                   D       -       0xfffff8000334fe00  [vtnet0 txq 1]
100048                   D       vtbslp  0xfffff800034f3580  [virtio_balloon]
100052                   D       -       0xfffff8000334f700  [mca taskq]
100057                   D       -       0xffffffff81d4ed81  [deadlkres]
100061                   D       -       0xfffff80003b66200  [acpi_task_0]
100062                   D       -       0xfffff80003b66200  [acpi_task_1]
100063                   D       -       0xfffff80003b66200  [acpi_task_2]
100065                   D       -       0xfffff8000334e700  [CAM taskq]
db> show all locks
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        27951         1631K        28015
              kobj          334         1336K          493
            newblk          541         1159K          560
          vfscache            4         1025K            4
               pcb           23          539K          121
          inodedep           48          536K           71
         ufs_quota            1          512K            1
          vfs_hash            1          512K            1
           callout            2          512K            2
              intr            4          472K            4
           subproc          114          222K          864
            acpica         1674          185K        55859
         vnet_data            1          168K            1
           pagedep           14          132K           18
        tfo_ccache            1          128K            1
               sem            4          106K            4
            DEVFS1          101          101K          110
            linker          239           96K          268
               bus          972           79K         3360
          mtx_pool            2           72K            2
          syncache            1           68K            1
          acpitask            1           64K            1
       ddb_capture            1           64K            1
            module          501           63K          501
              temp           18           33K         1536
         hostcache            1           32K            1
               shm            1           32K            1
               msg            4           30K            4
            DEVFS3          120           30K          130
              umtx          234           30K          234
           kdtrace          148           29K         1648
        DEVFS_RULE           56           27K           56
        gtaskqueue           18           26K           18
              vmem            3           22K            4
            kbdmux            6           22K            6
               BPF           10           18K           10
         ufs_mount            5           17K            6
              proc            3           17K            3
               tty           16           16K           16
           tidhash            1           16K            1
           ithread           98           16K           98
            bus-sc           30           14K         1439
            ifaddr           32           13K           32
            KTRACE          100           13K          100
              kenv           92           12K           92
      eventhandler          132           12K          132
         pfs_nodes           20           10K           20
              GEOM           60           10K          488
              rman           82           10K          423
         bmsafemap            2            9K           38
              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
           CAM DEV            3            6K          510
                vt           11            6K           11
              cred           21            6K          234
            sglist            5            6K            5
         CAM queue            5            6K         1528
         taskqueue           45            5K           45
       ufs_dirhash           24            5K           24
            dirrem           17            5K           28
         sctp_timw           17            5K           17
            plimit           17            5K          322
             ifnet            3            5K            3
               UMA          249            5K          249
           memdesc            1            4K            1
               MCA           32            4K           32
             evdev            4            4K            4
          filedesc            1            4K            1
           lltable           11            4K           11
          routetbl           14            4K           14
             hhook           13            4K           13
       ether_multi           40            4K           45
            diradd           25            4K           36
          pf_ifnet            5            3K            6
         in6_multi           25            3K           25
            kqueue           47            3K          799
           acpisem           22            3K           22
          terminal           11            3K           11
           session           20            3K           31
              pgrp           20            3K           31
           uidinfo            3            3K            8
        local_apic            1            2K            1
           io_apic            1            2K            1
         ipsec-saq            2            2K            2
         proc-args           39            2K          472
            select           13            2K           13
           CAM XPT           22            2K          543
             lockf           15            2K           22
         sctp_atcl            3            2K           69
            Unitno           25            2K           37
           acpidev           20            2K           20
               msi            9            2K            9
           softdep            1            1K            1
       ipsecpolicy            1            1K            1
            sahead            1            1K            1
          secasvar            1            1K            1
         sctp_stro            1            1K           23
             clone            8            1K            8
       vnodemarker            2            1K            8
      NFSD session            1            1K            1
        CAM periph            4            1K          271
          indirdep            3            1K            3
             nhops            6            1K            6
         toponodes            6            1K            6
            isadev            6            1K            6
             mount           16            1K           86
          pci_link           10            1K           10
            ip6ndp            4            1K            5
          sctp_ifa            5            1K            5
            crypto            3            1K            3
         newdirblk            4            1K            8
             mkdir            4            1K           16
         sctp_stri            1            1K           46
          in_multi            2            1K            3
              pfil            4            1K            4
    chacha20random            1            1K            1
           CAM SIM            2            1K            2
             epoch            4            1K            4
              cdev            2            1K            2
 encap_export_host            8            1K            8
               osd            3            1K            9
               mld            2            1K            2
          sctp_ifn            2            1K            2
              igmp            2            1K            2
            vnodes            1            1K            1
      NFSD lckfile            1            1K            1
     NFSD V4client            1            1K            1
             DEVFS            9            1K           10
            feeder            7            1K            7
       inpcbpolicy            6            1K          131
         sctp_atky            4            1K          115
        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
            DEVFSP            2            1K            2
            soname            4            1K         5834
          filecaps            4            1K           66
               tun            3            1K            3
          nexusdev            5            1K            5
           entropy            2            1K           35
          freework            1            1K           26
          sctp_vrf            1            1K            1
              vnet            1            1K            1
          acpiintr            1            1K            1
               pmc            1            1K            1
         sctp_athm            3            1K           92
              cpus            2            1K            2
          sctp_map            2            1K           46
    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
            vtfont            0            0K            0
        madt_table            0            0K            2
           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
            pvscsi            0            0K            0
          smartpqi            0            0K            0
            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
              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
        ice-resmgr            0            0K            0
         ice-osdep            0            0K            0
               ice            0            0K            0
       fpukern_ctx            0            0K            0
       tcp_log_dev            0            0K            0
          xen_intr            0            0K            0
      midi buffers            0            0K            0
             mixer            0            0K            0
           xen_hvm            0            0K            0
         legacydrv            0            0K            0
            qpidrv            0            0K            0
              ac97            0            0K            0
      dmar_idpgtbl            0            0K            0
          dmar_dom            0            0K            0
          dmar_ctx            0            0K            0
       dmar_dmamap            0            0K            0
             hdacc            0            0K            0
              hdac            0            0K            0
              hdaa            0            0K            0
              isci            0            0K            0
     hyperv_socket            0            0K            0
           bxe_ilt            0            0K            0
            xenbus            0            0K            0
         acpi_perf            0            0K            0
         acpicmbat            0            0K            0
       SIIS driver            0            0K            0
     vm_fictitious            0            0K            0
           CAM CCB            0            0K         1812
               PUC            0            0K            0
          ppbusdev            0            0K            0
agtiapi_MemAlloc malloc            0            0K            0
    osti_cacheable            0            0K            0
          tempbuff            0            0K            0
           UMAHash            0            0K            0
          tempbuff            0            0K            0
ag_tgt_map_t malloc            0            0K            0
         vm_pgdata            0            0K            0
           jblocks            0            0K            0
          savedino            0            0K           12
          sentinel            0            0K            0
            jfsync            0            0K            0
            jtrunc            0            0K            0
             sbdep            0            0K            3
           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
          freefile            0            0K            9
          freeblks            0            0K           25
          freefrag            0            0K            7
        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
ag_slr_map_t malloc            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            3
       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            3
         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            3
         sctp_aadr            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          195
       export_host            0            0K            0
        cl_savebuf            0            0K            3
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           25
              accf            0            0K            0
               pts            0            0K            0
               iov            0            0K        13084
          ioctlops            0            0K           86
           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          574
            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
db> show uma
              Zone   Size    Used    Free    Requests  Sleeps  Bucket  Total Mem    XFree
      mbuf_cluster   2048    9780     126        9780       0     254   20287488        0
       mbuf_packet    256    8192    1460       25346       0     254    2470912        0
               512    512    4138      38        4140       0      30    2138112        0
          BUF TRIE    144     168   13328         524       0      62    1943424        0
              4096   4096     336       2         946       0       2    1384448        0
               128    128    9711     147       10223       0     126    1261824        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    6605      13        6605       0     126     741216        0
         sctp_asoc   2288       1     254          23       0     254     583440        0
             tcpcb   1040       3     514           7       0     254     537680        0
            socket    904      15     498        1186       0     254     463752        0
           sctp_ep   1280       1     254          23       0     254     326400        0
        RADIX NODE    144    2060     177       19725       0      62     322128        0
        256 Bucket   2048     130       8         483       0       8     282624        0
             VNODE    488     528      48         539       0      30     281088        0
             65536  65536       4       0           4       0       1     262144        0
         VM OBJECT    264     899      61       12608       0      30     253440        0
             ripcb    488       1     511           4       0     254     249856        0
         tcp_inpcb    488       3     509           7       0     254     249856        0
         udp_inpcb    488       2     510         120       0     254     249856        0
            THREAD   1792     108       9         108       0       8     209664        0
              mbuf    256     386     387        2753       0     254     197888        0
                64     64    2806     281        2830       0     254     197568        0
             65536  65536       1       2          46       0       1     196608        0
              4096   4096      47       1         797       0       2     196608        0
        sctp_raddr    736       1     263          23       0     254     194304        0
                16     16   11760     240       11860       0     254     192000        0
               128    128    1155     240       25364       0     126     178560        0
         UMA Zones    768     223       3         223       0      16     173568        0
               256    256     567      63         762       0      62     161280        0
                32     32    4639     275        4734       0     254     157248        0
       FFS2 dinode    256     499      71         508       0      62     145920        0
             65536  65536       2       0           2       0       1     131072        0
             65536  65536       1       1           9       0       1     131072        0
              1024   1024     113      15         124       0      16     131072        0
             unpcb    256       7     503        1015       0     254     130560        0
         MAP ENTRY     96     847     413       37450       0     126     120960        0
          ksiginfo    112      39    1005          55       0     126     116928        0
         vmem btag     56    1838     237        1838       0     254     116200        0
              2048   2048       0      56        1844       0       8     114688        0
              4096   4096      24       2          35       0       2     106496        0
             g_bio    408       0     240        4899       0      30      97920        0
       S VFS Cache    108     584     316        1110       0     126      97200        0
         FFS inode    160     499      76         508       0      62      92000        0
              PROC   1312      46      20         796       0       8      86592        0
        128 Bucket   1024      42      41         211       0      16      84992        0
           VMSPACE   2536      24       9         775       0       4      83688        0
          UMA Kegs    384     209       6         209       0      30      82560        0
        sctp_chunk    152       1     519          24       0     254      79040        0
         filedesc0   1088      47      23         797       0       8      76160        0
              1024   1024       5      63         298       0      16      69632        0
                64     64     520     551        1589       0     254      68544        0
               128    128     323     204         543       0     126      67456        0
             65536  65536       1       0           1       0       1      65536        0
             65536  65536       0       1         112       0       1      65536        0
             16384  16384       4       0           4       0       1      65536        0
              8192   8192       6       2          34       0       1      65536        0
              2048   2048       8      24         516       0       8      65536        0
               256    256     139     116         475       0      62      65280        0
               512    512      72      48          78       0      30      61440        0
                64     64     453     366         729       0     254      52416        0
               128    128     281     122         294       0     126      51584        0
               128    128     205     198         560       0     126      51584        0
               256    256      80     115         642       0      62      49920        0
               256    256     138      57        1209       0      62      49920        0
         32 Bucket    256      41     154         382       0      62      49920        0
           DIRHASH   1024      34      14          34       0      16      49152        0
             NAMEI   1024       0      48       11460       0      16      49152        0
               512    512      50      46         581       0      30      49152        0
               512    512      53      43          73       0      30      49152        0
          syncache    168       0     264           5       0     254      44352        0
          4 Bucket     48      10     914       13227       0     254      44352        0
            clpbuf    832       0      48         130       0      16      39936        0
         64 Bucket    512      53      19         405       0      30      36864        0
             selfd     64      32     535        4831       0     254      36288        0
                64     64      14     553          47       0     254      36288        0
                64     64     220     347       12931       0     254      36288        0
                64     64      56     511         830       0     254      36288        0
                64     64       2     565          37       0     254      36288        0
                64     64     104     463        1150       0     254      36288        0
               128    128      26     253          72       0     126      35712        0
               128    128      20     259        5670       0     126      35712        0
               128    128      96     183         165       0     126      35712        0
     routing nhops    256       8     127          18       0      62      34560        0
           ttyoutq    256      72      63         160       0      62      34560        0
               256    256      73      62         116       0      62      34560        0
               256    256      32     103         765       0      62      34560        0
               256    256      29     106          87       0      62      34560        0
               256    256      18     117         919       0      62      34560        0
             32768  32768       1       0           1       0       1      32768        0
             32768  32768       1       0           1       0       1      32768        0
             32768  32768       0       1         112       0       1      32768        0
             32768  32768       1       0           1       0       1      32768        0
             16384  16384       2       0           3       0       1      32768        0
              8192   8192       3       1          86       0       1      32768        0
              8192   8192       4       0           4       0       1      32768        0
              2048   2048       9       7           9       0       8      32768        0
              2048   2048       1      15           2       0       8      32768        0
              2048   2048       5      11           5       0       8      32768        0
              2048   2048       2      14         449       0       8      32768        0
              1024   1024      16      16          16       0      16      32768        0
              1024   1024       3      29         877       0      16      32768        0
              1024   1024      17      15          17       0      16      32768        0
               512    512      21      43         139       0      30      32768        0
               512    512      13      51          79       0      30      32768        0
               512    512      11      53          12       0      30      32768        0
     mt_stats_zone     64     443      69         443       0     254      32768        0
           64 pcpu      8    3405     691        3407       0     254      32768        0
            ttyinq    160     135      65         300       0      62      32000        0
            cpuset    104       7     272           7       0     126      29016        0
         hostcache     96       1     293           1       0     254      28224        0
        KMAP ENTRY     96      12     279          12       0     126      27936        0
           rtentry    208      14     119          18       0      62      27664        0
              pipe    760       7      28         280       0      16      26600        0
         TURNSTILE    136     118      71         118       0      62      25704        0
              4096   4096       4       2           5       0       2      24576        0
          rl_entry     40      31     575          31       0     254      24240        0
             Files     80      70     230        6327       0     126      24000        0
          8 Bucket     80      55     245        3007       0     126      24000        0
        SLEEPQUEUE     88     118     138         118       0     126      22528        0
             udpcb     32       2     628         120       0     254      20160        0
               PWD     32      10     620          98       0     254      20160        0
                32     32      27     603         110       0     254      20160        0
                32     32      67     563         826       0     254      20160        0
                32     32     107     523         922       0     254      20160        0
                32     32       8     622          27       0     254      20160        0
                32     32      59     571         372       0     254      20160        0
                32     32      46     584        3790       0     254      20160        0
         16 Bucket    144      41      99         147       0      62      20160        0
          procdesc    136       1     144           6       0      62      19720        0
 epoch_record pcpu    256       4      60           4       0      62      16384        0
             16384  16384       1       0           1       0       1      16384        0
             16384  16384       0       1         136       0       1      16384        0
             16384  16384       1       0           1       0       1      16384        0
              8192   8192       2       0           2       0       1      16384        0
              8192   8192       2       0           2       0       1      16384        0
              8192   8192       2       0           2       0       1      16384        0
              4096   4096       1       3           7       0       2      16384        0
              4096   4096       3       1           3       0       2      16384        0
              4096   4096       1       3         196       0       2      16384        0
              2048   2048       1       7          13       0       8      16384        0
              2048   2048       2       6          24       0       8      16384        0
              1024   1024       2      14          42       0      16      16384        0
              1024   1024       6      10           6       0      16      16384        0
              1024   1024       1      15           1       0      16      16384        0
               512    512       3      29         369       0      30      16384        0
        sctp_laddr     48       0     336           4       0     254      16128        0
      vtnet_tx_hdr     24       0     668        1229       0     254      16032        0
           mt_zone     24     443     225         443       0     254      16032        0
              kenv    258       3      57        1109       0      30      15480        0
               MAP    216       2      69           2       0      62      15336        0
     FPU_save_area    832       1      17           1       0      16      14976        0
              vmem   1856       1       7           1       0       8      14848        0
                32     32      12     366         103       0     254      12096        0
          2 Bucket     32      44     334        8800       0     254      12096        0
             KNOTE    160       0      75           8       0      62      12000        0
                16     16      18     732          93       0     254      12000        0
                16     16      14     736         235       0     254      12000        0
                16     16      28     722         325       0     254      12000        0
                16     16     200     550        1372       0     254      12000        0
                16     16       4     746           5       0     254      12000        0
                16     16     247     503         345       0     254      12000        0
                16     16      22     728       25390       0     254      12000        0
       Mountpoints   2816       2       2           2       0       4      11264        0
              8192   8192       1       0           1       0       1       8192        0
           SMR CPU     32       2     253           2       0     254       8160        0
        SMR SHARED     24       2     253           2       0     254       6120        0
       UMA Slabs 1    176       8      14           8       0      62       3872        0
          int pcpu      4      18     494          18       0     254       2048        0
       FFS1 dinode    128       0       0           0       0     126          0        0
             swblk    136       0       0           0       0      62          0        0
          swpctrie    144       0       0           0       0      62          0        0
   pf state scrubs     40       0       0           0       0     254          0        0
   pf frag entries     40       0       0           0       0     254          0        0
          pf frags    248       0       0           0       0      62          0        0
  pf table entries    160       0       0           0       0      62          0        0
pf table entry counters     64       0       0           0       0     254          0        0
   pf source nodes    136       0       0           0       0     254          0        0
     pf state keys     88       0       0           0       0     126          0        0
         pf states    296       0       0           0       0     254          0        0
           pf tags    104       0       0           0       0     126          0        0
          pf mtags     48       0       0           0       0     254          0        0
       tcp_bbr_pcb    832       0       0           0       0      16          0        0
       tcp_bbr_map    128       0       0           0       0     126          0        0
    IPsec SA lft_c     16       0       0           0       0     254          0        0
     udplite_inpcb    488       0       0           0       0     254          0        0
   sctp_asconf_ack     48       0       0           0       0     254          0        0
       sctp_asconf     40       0       0           0       0     254          0        0
sctp_stream_msg_out    112       0       0           0       0     254          0        0
        sctp_readq    152       0       0           0       0     254          0        0
      tcp_log_node    120       0       0           0       0     126          0        0
    tcp_log_bucket    176       0       0           0       0      62          0        0
           tcp_log    416       0       0           0       0     254          0        0
          tcpreass     48       0       0           0       0     254          0        0
tfo_ccache_entries     80       0       0           0       0     126          0        0
               tfo      4       0       0           0       0     254          0        0
          sackhole     32       0       0           0       0     254          0        0
             tcptw     88       0       0           0       0     254          0        0
               ipq     56       0       0           0       0     254          0        0
            itimer    352       0       0           0       0      30          0        0
            AIOLIO    280       0       0           0       0      30          0        0
             AIOCB    752       0       0           0       0      16          0        0
              AIOP     32       0       0           0       0     254          0        0
               AIO    208       0       0           0       0      62          0        0
           NCLNODE    592       0       0           0       0      16          0        0
     LTS VFS Cache    368       0       0           0       0      30          0        0
       L VFS Cache    328       0       0           0       0      30          0        0
     STS VFS Cache    148       0       0           0       0      62          0        0
             rentr     24       0       0           0       0     254          0        0
         VNODEPOLL    120       0       0           0       0     126          0        0
    crypto_session     72       0       0           0       0     126          0        0
           cryptop    280       0       0           0       0      30          0        0
      nvme_request    128       0       0           0       0     126          0        0
    DMAR_MAP_ENTRY    120       0       0           0       0     126          0        0
      ktls_session    192       0       0           0       0      62          0        0
    mbuf_jumbo_16k  16384       0       0           0       0     254          0        0
     mbuf_jumbo_9k   9216       0       0           0       0     254          0        0
      audit_record   1280       0       0           0       0       8          0        0
         domainset     40       0       0           0       0     254          0        0
        MAC labels     40       0       0           0       0     254          0        0
            vnpbuf    832       0       0           0       0      62          0        0
            mdpbuf    832       0       0           0       0       4          0        0
           nfspbuf    832       0       0           0       0      16          0        0
            swwbuf    832       0       0           0       0       8          0        0
            swrbuf    832       0       0           0       0      16          0        0
          umtx_shm     88       0       0           0       0     126          0        0
           umtx pi     96       0       0           0       0     126          0        0
rangeset pctrie nodes    144       0       0           0       0      62          0        0
             65536  65536       0       0           0       0       1          0        0
             65536  65536       0       0           0       0       1          0        0
             32768  32768       0       0           0       0       1          0        0
             32768  32768       0       0           0       0       1          0        0
             32768  32768       0       0           0       0       1          0        0
             32768  32768       0       0           0       0       1          0        0
             16384  16384       0       0           0       0       1          0        0
             16384  16384       0       0           0       0       1          0        0
             16384  16384       0       0           0       0       1          0        0
              8192   8192       0       0           0       0       1          0        0
              4096   4096       0       0           0       0       2          0        0
            fakepg    104       0       0           0       0     126          0        0
          UMA Hash    256       0       0           0       0      62          0        0
Crashes (29):
Manager	Time	Kernel	Commit	Syzkaller	Log	Report	Syz repro	C repro
ci-freebsd-main	2020/07/03 16:52	freebsd	d8ef5641	695ef2dd	log	report	syz	C
ci-freebsd-i386	2020/07/03 17:13	freebsd	d8ef5641	695ef2dd	log	report	syz	C
ci-freebsd-main	2020/12/03 10:48	freebsd	12b36b24	8c9190ef	log	report
ci-freebsd-main	2020/11/30 15:16	freebsd	89befc5c	76831598	log	report
ci-freebsd-main	2020/11/24 19:23	freebsd	03250e13	bed14cd9	log	report
ci-freebsd-main	2020/11/21 20:08	freebsd	89258e06	2f4d85f4	log	report
ci-freebsd-main	2020/11/21 09:44	freebsd	dd05efc4	68068804	log	report
ci-freebsd-main	2020/11/19 18:59	freebsd	9c3205de	0767f13f	log	report
ci-freebsd-main	2020/11/17 03:02	freebsd	b7923586	1bf9a662	log	report
ci-freebsd-main	2020/11/01 06:22	freebsd	ebf6d80b	8bc4594f	log	report
ci-freebsd-main	2020/10/15 18:31	freebsd	8349de39	63869021	log	report
ci-freebsd-main	2020/10/14 09:54	freebsd	d0fb57d2	fc7735a2	log	report
ci-freebsd-main	2020/10/11 08:02	freebsd	88ab3e83	4a77ae0b	log	report
ci-freebsd-main	2020/10/02 22:21	freebsd	80c44090	062c9832	log	report
ci-freebsd-main	2020/09/27 23:24	freebsd	f7a34c99	5dd8aee8	log	report
ci-freebsd-main	2020/09/27 10:21	freebsd	00ca7875	5dd8aee8	log	report
ci-freebsd-main	2020/09/25 12:04	freebsd	71e02448	54289b08	log	report
ci-freebsd-main	2020/09/24 22:04	freebsd	bba7c438	54289b08	log	report
ci-freebsd-main	2020/09/24 20:52	freebsd	bba7c438	54289b08	log	report
ci-freebsd-main	2020/09/13 23:59	freebsd	55dd3b08	21d289c2	log	report
ci-freebsd-main	2020/09/13 10:47	freebsd	d8899d1d	21d289c2	log	report
ci-freebsd-main	2020/09/04 21:43	freebsd	21571b1d	abf9ba4f	log	report
ci-freebsd-main	2020/08/19 07:11	freebsd	23e6deb0	e1c29030	log	report
ci-freebsd-main	2020/07/06 20:01	freebsd	6daf1491	695ef2dd	log	report
ci-freebsd-main	2020/07/03 16:36	freebsd	d8ef5641	695ef2dd	log	report
ci-freebsd-main	2020/06/20 06:59	freebsd	6328f172	c655ec77	log	report
ci-freebsd-i386	2020/11/24 14:46	freebsd	ec9da780	bed14cd9	log	report
ci-freebsd-i386	2020/09/27 03:34	freebsd	00ca7875	5dd8aee8	log	report
ci-freebsd-i386	2020/09/13 01:30	freebsd	d8899d1d	21d289c2	log	report