syzbot


panic: _mtx_lock_sleep: recursed on non-recursive mutex so_snd @ /syzkaller/managers/main/kernel/sys/kern/uipc_socket.c:

Status: auto-closed as invalid on 2020/08/19 21:01
Reported-by: syzbot+621ea1f68df673851e66@syzkaller.appspotmail.com
First crash: 1108d, last: 1108d

Sample crash report:
panic: _mtx_lock_sleep: recursed on non-recursive mutex so_snd @ /syzkaller/managers/main/kernel/sys/kern/uipc_socket.c:4035

cpuid = 0
time = 129
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x47/frame 0xfffffe00037fc790
vpanic() at vpanic+0x1c7/frame 0xfffffe00037fc7f0
panic() at panic+0x43/frame 0xfffffe00037fc850
__mtx_lock_sleep() at __mtx_lock_sleep+0x72e/frame 0xfffffe00037fc8f0
__mtx_lock_flags() at __mtx_lock_flags+0x150/frame 0xfffffe00037fc950
soisdisconnected() at soisdisconnected+0xb2/frame 0xfffffe00037fc980
tcp_close() at tcp_close+0x183/frame 0xfffffe00037fc9c0
tcp_hpts_thread() at tcp_hpts_thread+0x143d/frame 0xfffffe00037fcb10
ithread_loop() at ithread_loop+0x328/frame 0xfffffe00037fcbb0
fork_exit() at fork_exit+0xb3/frame 0xfffffe00037fcbf0
fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe00037fcbf0
--- trap 0, rip = 0, rsp = 0, rbp = 0 ---
KDB: enter: panic
[ thread pid 12 tid 100072 ]
Stopped at      kdb_enter+0x67: movq    $0,0x14ab366(%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         0xffffffff810b71c0  vprintf+0x140
rdx                        0x1
rbx                          0
rsp         0xfffffe00037fc770
rbp         0xfffffe00037fc790
rsi                          0
rdi         0xffffffff810b71f6  vprintf+0x176
r8                           0
r9                  0xffffffff
r10                          0
r11                 0xd49704b2
r12         0xffffffff82068e40  ddb_dbbe
r13                          0
r14         0xffffffff819472dc
r15         0xffffffff819472dc
rip         0xffffffff810ac507  kdb_enter+0x67
rflags                    0x82  ll+0x61
kdb_enter+0x67: movq    $0,0x14ab366(%rip)
db> show proc
Process 12 (intr) at 0xfffff80003308520:
 state: NORMAL
 uid: 0  gids: 0
 parent: pid 0 at 0xffffffff8250b710
 ABI: null
 reaper: 0xffffffff8250b710 reapsubtree: 12
 sigparent: 20
 vmspace: 0xffffffff8250c350
   (map 0xffffffff8250c350)
   (map.pmap 0xffffffff8250c410)
   (pmap 0xffffffff8250c470)
 threads: 23
100012                   I                                   [swi5: fast taskq]
100015                   I                                   [swi6: task queue]
100016                   I                                   [swi6: Giant taskq]
100019                   I                                   [swi4: clock (0)]
100020                   I                                   [swi4: clock (1)]
100021                   I                                   [swi1: netisr 0]
100022                   I                                   [swi3: vm]
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                   RunQ                                [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                   Run     CPU 0                       [swi1: hpts]
100073                   RunQ                                [swi1: hpts]
db> ps
  pid  ppid  pgrp   uid  state   wmesg   wchan               cmd
 7707  3034  3034     0  R       (threaded)                  syz-executor.3
100542                   RunQ                                syz-executor.3
100735                   S       sbwait  0xfffffe00239b90f4  syz-executor.3
100742                   S       connec  0xfffffe00239b20f0  syz-executor.3
100745                   S       uwait   0xfffff80068014680  syz-executor.3
 7706  3257  3257     0  R       (threaded)                  syz-executor.2
100575                   RunQ                                syz-executor.2
100734                   S       connec  0xfffffe00239b0f10  syz-executor.2
100740                   S       uwait   0xfffff80003ca2f00  syz-executor.2
 7704  3305  3305     0  R       (threaded)                  syz-executor.1
100703                   RunQ                                syz-executor.1
100723                   S       sbwait  0xfffffe00239b3a8c  syz-executor.1
100726                   S       sbwait  0xfffffe00239b3704  syz-executor.1
100729                   S       connec  0xfffffe00239b40f0  syz-executor.1
 7703  6041  6041     0  R       (threaded)                  syz-executor.0
101006                   RunQ                                syz-executor.0
100720                   S       connec  0xfffffe0023bfc9a8  syz-executor.0
100721                   Run     CPU 1                       syz-executor.0
100995                   S       connec  0xfffffe00239b59a8  syz-executor.0
101133                   S       connec  0xfffffe00239b59a8  syz-executor.0
 6473  6467  6473     0  Ss      select  0xfffff8000cf0cd40  dhclient
 6470     1  6470     0  Ss      select  0xfffff800680141c0  dhclient
 6467  6460   424    65  S       select  0xfffff800680147c0  dhclient
 6460   424   424     0  S       wait    0xfffff80003ce4520  sh
 6424     1  6424    65  Ss      select  0xfffff80068014240  dhclient
 6041   768  6041     0  Rs                                  syz-executor.0
 5793     1  5793     0  Ss      select  0xfffff80003dd5340  dhclient
 5790     1  5790     0  Ss      select  0xfffff8000c311dc0  dhclient
 4986     1  4986    65  Ss      select  0xfffff8000c541440  dhclient
 4165     1  4165     0  Ss      select  0xfffff8000cf0c040  dhclient
 4162     1  4162     0  Ss      select  0xfffff8000cf0d440  dhclient
 4151     1  4151    65  Ss      select  0xfffff80003d0d4c0  dhclient
 3305   768  3305     0  Rs                                  syz-executor.1
 3297     1  3297     0  Ss      select  0xfffff8000c311340  dhclient
 3294     1  3294     0  Ss      select  0xfffff8000cf0d240  dhclient
 3257   768  3257     0  Rs                                  syz-executor.2
 3034   768  3034     0  Rs                                  syz-executor.3
  768   766   766     0  S       (threaded)                  syz-fuzzer
100106                   S       kqread  0xfffff800031fc800  syz-fuzzer
100107                   S       uwait   0xfffff80003b87d00  syz-fuzzer
100108                   S       uwait   0xfffff80003b87d80  syz-fuzzer
100109                   S       uwait   0xfffff80003dd5700  syz-fuzzer
100110                   S       uwait   0xfffff80003dd5800  syz-fuzzer
100111                   S       uwait   0xfffff80003dd5900  syz-fuzzer
100112                   S       uwait   0xfffff80003dd5d00  syz-fuzzer
100113                   S       uwait   0xfffff80003dd5e00  syz-fuzzer
100114                   S       uwait   0xfffff80003ca2600  syz-fuzzer
100116                   S       uwait   0xfffff80003c9d680  syz-fuzzer
100118                   S       uwait   0xfffff8000c516300  syz-fuzzer
  766   764   766     0  Ss      pause   0xfffff8000c48d5c8  csh
  764   682   764     0  Ss      select  0xfffff80003dd53c0  sshd
  748     1   748     0  Ss+     ttyin   0xfffff8000383ecb0  getty
  747     1   747     0  Ss+     ttyin   0xfffff80003b334b0  getty
  746     1   746     0  Ss+     ttyin   0xfffff80003b338b0  getty
  745     1   745     0  Ss+     ttyin   0xfffff80003b33cb0  getty
  744     1   744     0  Ss+     ttyin   0xfffff80003b360b0  getty
  743     1   743     0  Ss+     ttyin   0xfffff80003b364b0  getty
  742     1   742     0  Ss+     ttyin   0xfffff80003b368b0  getty
  741     1   741     0  Ss+     ttyin   0xfffff80003b36cb0  getty
  740     1   740     0  Ss+     ttyin   0xfffff80003b350b0  getty
  686     1   686     0  Ss      nanslp  0xffffffff8252c1e0  cron
  682     1   682     0  Ss      select  0xfffff80003dd54c0  sshd
  495     1   495     0  Rs                                  syslogd
  424     1   424     0  Ss      wait    0xfffff8000c1f7520  devd
  423     1   423    65  Ss      select  0xfffff80003b87f40  dhclient
  338     1   338     0  Ss      select  0xfffff80003b87ec0  dhclient
  335     1   335     0  Ss      select  0xfffff80003b87e40  dhclient
   23     0     0     0  DL      syncer  0xffffffff82618118  [syncer]
   22     0     0     0  DL      vlruwt  0xfffff800033dca40  [vnlru]
   21     0     0     0  DL      (threaded)                  [bufdaemon]
100069                   D       qsleep  0xffffffff82617430  [bufdaemon]
100076                   D       -       0xffffffff8200aa00  [bufspacedaemon-0]
100085                   D       sdflush 0xfffff80003c6dce8  [/ worker]
   20     0     0     0  DL      psleep  0xffffffff8263e308  [vmdaemon]
   19     0     0     0  DL      (threaded)                  [pagedaemon]
100067                   D       psleep  0xffffffff826328d8  [dom0]
100074                   D       launds  0xffffffff826328e4  [laundry: dom0]
100075                   D       umarcl  0xffffffff81544300  [uma]
   18     0     0     0  DL      -       0xffffffff8235fe58  [rand_harvestq]
   17     0     0     0  DL      pftm    0xffffffff82bcc3a0  [pf purge]
   16     0     0     0  DL      waiting 0xffffffff8261a890  [sctp_iterator]
   15     0     0     0  DL      -       0xffffffff82616a2c  [soaiod4]
    9     0     0     0  DL      -       0xffffffff82616a2c  [soaiod3]
    8     0     0     0  DL      -       0xffffffff82616a2c  [soaiod2]
    7     0     0     0  DL      -       0xffffffff82616a2c  [soaiod1]
    6     0     0     0  DL      (threaded)                  [cam]
100033                   D       -       0xffffffff82237bc0  [doneq0]
100066                   D       -       0xffffffff82237a90  [scanner]
    5     0     0     0  DL      crypto_ 0xfffff80003206e90  [crypto returns 1]
    4     0     0     0  DL      crypto_ 0xfffff80003206e30  [crypto returns 0]
    3     0     0     0  DL      crypto_ 0xffffffff826300c0  [crypto]
   14     0     0     0  DL      seqstat 0xfffff8000335f488  [sequencer 00]
   13     0     0     0  DL      (threaded)                  [geom]
100024                   D       -       0xffffffff8250b180  [g_event]
100025                   D       -       0xffffffff8250b188  [g_up]
100026                   D       -       0xffffffff8250b190  [g_down]
    2     0     0     0  DL      (threaded)                  [KTLS]
100017                   D       -       0xfffff80003319600  [thr_0]
100018                   D       -       0xfffff80003319640  [thr_1]
   12     0     0     0  RL      (threaded)                  [intr]
100012                   I                                   [swi5: fast taskq]
100015                   I                                   [swi6: task queue]
100016                   I                                   [swi6: Giant taskq]
100019                   I                                   [swi4: clock (0)]
100020                   I                                   [swi4: clock (1)]
100021                   I                                   [swi1: netisr 0]
100022                   I                                   [swi3: vm]
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                   RunQ                                [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                   Run     CPU 0                       [swi1: hpts]
100073                   RunQ                                [swi1: hpts]
   11     0     0     0  RL      (threaded)                  [idle]
100003                   CanRun                              [idle: cpu0]
100004                   CanRun                              [idle: cpu1]
    1     0     1     0  SLs     wait    0xfffff80003307000  [init]
   10     0     0     0  DL      audit_w 0xffffffff82630598  [audit]
    0     0     0     0  DLs     (threaded)                  [kernel]
100000                   D       swapin  0xffffffff8250b710  [swapper]
100005                   D       -       0xfffff80003211b00  [softirq_0]
100006                   D       -       0xfffff80003211900  [softirq_1]
100007                   D       -       0xfffff80003211700  [if_io_tqg_0]
100008                   D       -       0xfffff80003211500  [if_io_tqg_1]
100009                   D       -       0xfffff80003211300  [if_config_tqg_0]
100010                   D       -       0xfffff800031fee00  [in6m_free taskq]
100011                   D       -       0xfffff800031fed00  [thread taskq]
100013                   D       -       0xfffff800031feb00  [kqueue_ctx taskq]
100014                   D       -       0xfffff800031fea00  [aiod_kick taskq]
100023                   D       -       0xfffff800031fe700  [firmware taskq]
100028                   D       -       0xfffff800031fe500  [crypto_0]
100029                   D       -       0xfffff800031fe500  [crypto_1]
100043                   D       -       0xfffff800031fe200  [vtnet0 rxq 0]
100044                   D       -       0xfffff800031fe100  [vtnet0 txq 0]
100045                   D       -       0xfffff800031fe000  [vtnet0 rxq 1]
100046                   D       -       0xfffff800031fde00  [vtnet0 txq 1]
100048                   D       vtbslp  0xfffff800034f0580  [virtio_balloon]
100052                   D       -       0xfffff800031fdc00  [mca taskq]
100057                   D       -       0xffffffff81ce8e00  [deadlkres]
100062                   D       -       0xfffff80003b7f000  [acpi_task_0]
100063                   D       -       0xfffff80003b7f000  [acpi_task_1]
100064                   D       -       0xfffff80003b7f000  [acpi_task_2]
100065                   D       -       0xfffff800031fe300  [CAM taskq]
db> show all locks
Process 7707 (syz-executor.3) thread 0xfffffe002584c300 (100735)
exclusive sx so_snd_sx (so_snd_sx) r = 0 (0xfffffe00239b9098) locked @ /syzkaller/managers/main/kernel/sys/kern/uipc_sockbuf.c:414
Process 7703 (syz-executor.0) thread 0xfffffe002594e500 (100721)
exclusive sx so_snd_sx (so_snd_sx) r = 0 (0xfffffe00239b5b30) locked @ /syzkaller/managers/main/kernel/sys/kern/uipc_sockbuf.c:414
Process 12 (intr) thread 0xfffffe0004cfb700 (100072)
exclusive rw tcpinp (tcpinp) r = 0 (0xfffff8001902e9a8) locked @ /syzkaller/managers/main/kernel/sys/netinet/tcp_hpts.c:1272
exclusive sleep mutex so_snd (so_snd) r = 0 (0xfffffe00239b5b10) locked @ /syzkaller/managers/main/kernel/sys/modules/tcp/bbr/../../../netinet/tcp_stacks/bbr.c:12532
db> show malloc
              Type        InUse        MemUse     Requests
           pf_hash            5        11524K            5
            devbuf         4213         4851K         4241
          tcp_hpts            5         3201K            5
             vtbuf           24         1968K           46
         sysctloid        27849         1625K        27913
              kobj          333         1332K          490
            newblk            9         1026K        14990
          vfscache            4         1025K            4
               pcb           79          549K         8610
          inodedep           32          528K         7647
         ufs_quota            1          512K            1
          vfs_hash            1          512K            1
           callout            2          512K            2
              intr            4          388K            4
           subproc          146          297K         7790
            acpica         1674          185K        52709
         vnet_data            1          168K            1
          filedesc           22          153K        12976
           pagedep           10          131K         6605
        tfo_ccache            1          128K            1
               sem            4          106K            4
            DEVFS1          105          105K          122
            linker          238           96K          372
               BPF           46           88K          110
               bus         1029           81K         3505
          mtx_pool            2           72K            2
          syncache            1           68K            1
          acpitask            1           64K            1
       ddb_capture            1           64K            1
            module          500           63K          500
            ifaddr          117           47K          179
              umtx          360           45K          360
           kdtrace          204           39K        32762
              temp           36           35K         5343
         hostcache            1           32K            1
               shm            1           32K           14
            DEVFS3          124           31K          134
               msg            4           30K            4
        DEVFS_RULE           56           27K           56
              vmem            3           26K            5
        gtaskqueue           18           26K           18
            kbdmux            6           22K            6
         ufs_mount            3           17K            4
              proc            3           17K            3
               tty           16           16K           16
           tidhash            1           16K            1
           ithread           98           16K           98
           lltable           40           14K          237
       ether_multi          172           14K          913
            bus-sc           30           14K         1431
            KTRACE          100           13K          100
             ifnet            7           13K            7
              kenv           95           12K           99
      eventhandler          132           12K          132
         in6_multi           89           11K          526
         pfs_nodes           20           10K           20
            select           79           10K           79
              GEOM           60           10K          484
              rman           82           10K          423
         bmsafemap            2            9K         7372
              UART           12            9K           12
           devstat            4            9K            4
               rpc            2            8K            2
         sctp_timw           32            8K           32
             shmfd            1            8K           63
       pfs_vncache            1            8K            1
     audit_evclass          233            8K          291
          routetbl           27            7K          222
              cred           25            7K          753
            kqueue           66            7K         7716
           CAM DEV            3            6K          510
            plimit           24            6K         1047
            dirrem           23            6K         6743
                vt           11            6K           11
            sglist            5            6K            5
         CAM queue            5            6K         1528
             lockf           46            5K         1648
            DEVFSP           78            5K          656
         taskqueue           45            5K           45
       ufs_dirhash           24            5K           24
          pf_ifnet           12            5K           82
           session           34            5K          103
              pgrp           34            5K          117
          pf_table            2            4K           42
           memdesc            1            4K            1
               MCA           32            4K           32
               UMA          248            4K          248
             evdev            4            4K            4
          kcovinfo           64            4K          595
          sctp_ifa           30            4K          110
             hhook           13            4K           13
         sctp_atcl            6            3K         3615
          freefile           23            3K         6723
         proc-args           53            3K         1292
           acpisem           22            3K           22
          terminal           11            3K           11
           uidinfo            3            3K           29
        local_apic            1            2K            1
           io_apic            1            2K            1
         ipsec-saq            2            2K            2
         sctp_stro            2            2K          991
            ip6ndp           12            2K           83
       inpcbpolicy           59            2K        18146
           CAM XPT           22            2K          543
            Unitno           27            2K        32539
          in_multi            6            2K           42
           acpidev           20            2K           20
               msi            9            2K            9
               tun            7            2K            7
          freework            5            2K         8886
           softdep            1            1K            1
             mkdir            8            1K        12674
          freeblks            4            1K         6642
       ipsecpolicy            1            1K            1
            sahead            1            1K            1
          secasvar            1            1K            1
             clone            8            1K            8
       vnodemarker            2            1K          926
      NFSD session            1            1K            1
        CAM periph            4            1K          271
               mld            6            1K            6
          sctp_ifn            6            1K           37
              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
         newdirblk            5            1K         6337
            crypto            3            1K            3
            diradd            4            1K         6907
              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
           pf_osfp            3            1K            3
         sctp_atky            8            1K         4612
               osd            3            1K            9
            vnodes            1            1K           25
               iov            2            1K        33596
      NFSD lckfile            1            1K            1
     NFSD V4client            1            1K            1
             DEVFS            9            1K           10
            soname           11            1K        14916
            feeder            7            1K            7
        loginclass            3            1K            6
           pf_rule            1            1K          117
     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
         sctp_athm            6            1K         3616
          nexusdev            5            1K            5
          filecaps            5            1K          212
           entropy            2            1K           80
          sctp_vrf            1            1K            1
          sctp_map            4            1K         1982
        ip_msource            1            1K           13
              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_altq            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
       tcp_log_dev            0            0K           14
       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        49682
               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         4998
          sentinel            0            0K            0
            jfsync            0            0K            0
            jtrunc            0            0K            0
             sbdep            0            0K          459
           jsegdep            0            0K            0
              jseg            0            0K            0
         jfreefrag            0            0K            0
          jfreeblk            0            0K            0
           jnewblk            0            0K            0
            jmvref            0            0K            0
           jremref            0            0K            0
           jaddref            0            0K            0
           freedep            0            0K            0
          freefrag            0            0K           24
        allocindir            0            0K            0
          indirdep            0            0K         2917
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           mactemp            0            0K            0
     audit_trigger            0            0K            0
 audit_pipe_presel            0            0K            0
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        audit_pipe            0            0K            0
      audit_evname            0            0K            0
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             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          387
       ip6_msource            0            0K           14
      ip6_moptions            0            0K           12
       in6_mfilter            0            0K           30
             frag6            0            0K            6
            tcplog            0            0K            0
lDevFlags * malloc            0            0K            0
               LRO            0            0K            0
        sctp_mcore            0            0K            0
        sctp_socko            0            0K         2210
         sctp_iter            0            0K          111
         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          111
         sctp_aadr            0            0K           54
         sctp_stri            0            0K            2
      newreno data            0            0K            0
       ip_moptions            0            0K           60
        in_mfilter            0            0K           42
              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            8
tiDeviceHandle_t * malloc            0            0K            0
            statfs            0            0K         6466
       export_host            0            0K            0
        cl_savebuf            0            0K            6
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
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              aios            0            0K            0
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               acl            0            0K            0
            MPSSAS            0            0K            0
          mbuf_tag            0            0K         1131
              accf            0            0K            0
               pts            0            0K            0
          ioctlops            0            0K         2262
           Witness            0            0K            0
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               mpr            0            0K            0
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              sbuf            0            0K          288
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                ix            0            0K            0
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             sigio            0            0K           18
filedesc_to_leader            0            0K            0
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    tr_raid1e_data            0            0K            0
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    tr_concat_data            0            0K            0
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         raid_data            0            0K           72
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         newnfsmnt            0            0K            0
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     NFSCL session            0            0K            0
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NFSCL diroffdiroff            0            0K            0
       NEWdirectio            0            0K            0
        NEWNFSnode            0            0K            0
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      NFSCL client            0            0K            0
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              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_jumbo_page   4096       2    3300        8464       0     254   13524992        0
       mbuf_packet    256    8214    1438      658975       0     254    2470912        0
        RADIX NODE    144   15840     229      517348       0      62    2313936        0
               512    512    4147      29        4257       0      30    2138112        0
          BUF TRIE    144     508   12988       43035       0      62    1943424        0
              4096   4096     333       5         490       0       2    1384448        0
               128    128   10072     530       16804       0     126    1357056        0
         sctp_asoc   2288       2     508         991       0     254    1166880        0
       UMA Slabs 0    112   10145       1       10145       0     126    1136352        0
              mbuf    256     500    3318      977492       0     254     977408        0
              pbuf    832       0     889           0       0       2     739648        0
           sctp_ep   1280       4     506        2623       0     254     652800        0
             tcpcb   1032      49     468        4121       0     254     533544        0
              2048   2048       2     254       49716       0       8     524288        0
            socket    904      90     423       25426       0     254     463752        0
        256 Bucket   2048     199      19        1285       0       8     446464        0
             g_bio    408       0    1020      196384       0      31     416160        0
         VM OBJECT    264    1460      70      125712       0      30     403920        0
        sctp_raddr    736       2     515         993       0     254     380512        0
         tcp_inpcb    488      50     718        4121       0     254     374784        0
             VNODE    488     680      40        7431       0      30     351360        0
             32768  32768       2       8        2582       0       1     327680        0
            THREAD   1776     156      24       17426       0       8     319680        0
       tcp_bbr_map    128      16    2402       23863       0     126     309504        0
              4096   4096      65       5        7712       0       2     286720        0
               256    256      62    1003       15184       0      62     272640        0
             65536  65536       4       0           4       0       1     262144        0
               512    512      35     477        9083       0      30     262144        0
             ripcb    488       5     507         506       0     254     249856        0
     udplite_inpcb    488       3     509       12826       0     254     249856        0
         udp_inpcb    488       2     510         693       0     254     249856        0
             16384  16384       9       4        6599       0       1     212992        0
           tcp_log    408       0     510        1378       0     254     208080        0
                64     64    2681     406        2709       0     254     197568        0
             65536  65536       1       2           5       0       1     196608        0
             65536  65536       2       1         114       0       1     196608        0
         MAP ENTRY     96    1723     293      454964       0     126     193536        0
       FFS2 dinode    256     643     107        7391       0      62     192000        0
                16     16   11711     289       11913       0     254     192000        0
               128    128    1134     261       24402       0     126     178560        0
               256    256     150     540        7404       0      62     176640        0
         UMA Zones    768     222       4         222       0      16     173568        0
              4096   4096      39       3          96       0       2     172032        0
                32     32    4398     264        5472       0     254     149184        0
         vmem btag     56    2272     379        2272       0     254     148456        0
              1024   1024     121      23         157       0      16     147456        0
               256    256      35     535       18446       0      62     145920        0
           VMSPACE   2536      41      13        7686       0       4     136944        0
             65536  65536       0       2         459       0       1     131072        0
             65536  65536       2       0           2       0       1     131072        0
             unpcb    256      22     488        4508       0     254     130560        0
         FFS inode    160     643     107        7392       0      62     120000        0
        128 Bucket   1024      73      42        1271       0      16     117760        0
          ksiginfo    112      65     979         232       0     126     116928        0
             16384  16384       3       4          10       0       1     114688        0
            clpbuf    832       0     128       24601       0      16     106496        0
              PROC   1312      63      18        7707       0       8     106272        0
         64 Bucket    512     124      76        9733       0      30     102400        0
               256    256     217     173       31909       0      62      99840        0
       S VFS Cache    108     658     242        8614       0     126      97200        0
         filedesc0   1088      64      20        7708       0       8      91392        0
               128    128     304     347        7010       0     126      83328        0
          UMA Kegs    384     208       7         208       0      30      82560        0
              2048   2048       5      35        2624       0       8      81920        0
        sctp_chunk    152       0     520          18       0     254      79040        0
               512    512      32     120        3838       0      30      77824        0
              1024   1024       4      64         275       0      16      69632        0
                64     64     389     682       26744       0     254      68544        0
                64     64     575     496        9167       0     254      68544        0
                64     64     514     557        1684       0     254      68544        0
               128    128     223     304       20168       0     126      67456        0
             65536  65536       0       1           8       0       1      65536        0
               512    512      74      54         395       0      30      65536        0
               256    256      64     191        8275       0      62      65280        0
         32 Bucket    256      60     195        8055       0      62      65280        0
               512    512      84      36         209       0      30      61440        0
sctp_stream_msg_out    112       0     540          19       0     254      60480        0
       tcp_bbr_pcb    832       4      68        2487       0      16      59904        0
              8192   8192       4       3          32       0       1      57344        0
              8192   8192       3       4          12       0       1      57344        0
              4096   4096       9       5         488       0       2      57344        0
               128    128     167     236         545       0     126      51584        0
               256    256     128      67        1326       0      62      49920        0
               256    256       9     186        9924       0      62      49920        0
              pipe    760      22      43        1179       0      16      49400        0
           DIRHASH   1024      34      14          34       0      16      49152        0
             NAMEI   1024       0      48       54095       0      16      49152        0
             16384  16384       2       1           3       0       1      49152        0
              2048   2048       7      17          28       0       8      49152        0
              2048   2048       8      16         625       0       8      49152        0
              2048   2048      13      11          53       0       8      49152        0
              1024   1024       4      44        1028       0      16      49152        0
               512    512      70      26         132       0      30      49152        0
          syncache    168       0     264           4       0     254      44352        0
             Files     80     243     307       49524       0     126      44000        0
              8192   8192       4       1          85       0       1      40960        0
         16 Bucket    144      84     196       51136       0      62      40320        0
        sctp_readq    152       0     260           2       0     254      39520        0
           64 pcpu      8    3990     618        5221       0     254      36864        0
             selfd     64     153     414       56637       0     254      36288        0
                64     64      11     556         106       0     254      36288        0
                64     64     177     390        7899       0     254      36288        0
                64     64     113     454        3223       0     254      36288        0
                64     64      38     529        1035       0     254      36288        0
          8 Bucket     80      74     376       56807       0     126      36000        0
               128    128      46     233         170       0     126      35712        0
               128    128     103     176        8335       0     126      35712        0
               128    128      85     194        1518       0     126      35712        0
     routing nhops    256      13     122         169       0      62      34560        0
           ttyoutq    256      72      63         160       0      62      34560        0
               256    256      35     100         123       0      62      34560        0
         TURNSTILE    136     181      71         181       0      62      34272        0
             32768  32768       1       0           1       0       1      32768        0
             32768  32768       0       1         112       0       1      32768        0
              4096   4096       3       5          10       0       2      32768        0
              4096   4096       3       5        6469       0       2      32768        0
              2048   2048       2      14           2       0       8      32768        0
              2048   2048       1      15        1836       0       8      32768        0
              1024   1024       1      31        2558       0      16      32768        0
              1024   1024       2      30         156       0      16      32768        0
              1024   1024      16      16          16       0      16      32768        0
              1024   1024      19      13          19       0      16      32768        0
              1024   1024       1      31          34       0      16      32768        0
               512    512       5      59          85       0      30      32768        0
     mt_stats_zone     64     439      73         439       0     254      32768        0
             KNOTE    160      27     173       82175       0      62      32000        0
            ttyinq    160     135      65         300       0      62      32000        0
            cpuset    104       7     272           7       0     126      29016        0
        sctp_laddr     48       0     588         343       0     254      28224        0
         hostcache     96       1     293           1       0     254      28224        0
               PWD     32      22     860        6416       0     254      28224        0
                32     32     349     533       37983       0     254      28224        0
          4 Bucket     48       6     582        8401       0     254      28224        0
           rtentry    200      31     109         169       0      62      28000        0
        KMAP ENTRY     96      12     279          12       0     126      27936        0
              8192   8192       3       0           5       0       1      24576        0
              8192   8192       3       0           3       0       1      24576        0
          rl_entry     40      91     515          91       0     254      24240        0
          2 Bucket     32      69     687       15668       0     254      24192        0
      vtnet_tx_hdr     24       1    1001      929351       0     254      24048        0
        SLEEPQUEUE     88     181      75         181       0     126      22528        0
             udpcb     32       5     625       13519       0     254      20160        0
                32     32      99     531        7593       0     254      20160        0
                32     32      26     604         811       0     254      20160        0
                32     32     104     526        7612       0     254      20160        0
                32     32     107     523       18878       0     254      20160        0
                32     32      38     592        2656       0     254      20160        0
          procdesc    136       5     140          38       0      62      19720        0
       L VFS Cache    328       0      60           7       0      30      19680        0
 epoch_record pcpu    256       4      60           4       0      62      16384        0
             16384  16384       1       0           1       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
              4096   4096       0       4         217       0       2      16384        0
              2048   2048       1       7          13       0       8      16384        0
               512    512       2      30         162       0      30      16384        0
             rentr     24       0     668          92       0     254      16032        0
           mt_zone     24     439     229         439       0     254      16032        0
      tcp_log_node    120       0     132           2       0     126      15840        0
               MAP    216       2      69           2       0      62      15336        0
              vmem   1856       1       7           1       0       8      14848        0
    tcp_log_bucket    184       0      66           1       0      62      12144        0
                32     32       3     375          55       0     254      12096        0
                16     16      11     739        2198       0     254      12000        0
                16     16      37     713        7596       0     254      12000        0
                16     16      53     697        4402       0     254      12000        0
                16     16     193     557        1245       0     254      12000        0
                16     16      14     736          50       0     254      12000        0
                16     16     250     500        2231       0     254      12000        0
                16     16      19     731       23954       0     254      12000        0
       Mountpoints   2816       2       2           2       0       4      11264        0
              4096   4096       0       2           1       0       2       8192        0
           SMR CPU     32       1     254           1       0     254       8160        0
        SMR SHARED     24       1     254           1       0     254       6120        0
       UMA Slabs 1    176       9      13           9       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    256       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
    IPsec SA lft_c     16       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
          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
     STS VFS Cache    148       0       0           0       0      62          0        0
         VNODEPOLL    120       0       0           0       0     126          0        0
    crypto_session     72       0       0           0       0     126          0        0
           cryptop    240       0       0           0       0      62          0        0
      nvme_request    128       0       0           0       0     126          0        0
     FPU_save_area    832       0       0           0       0      16          0        0
    DMAR_MAP_ENTRY    128       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
             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
            fakepg    104       0       0           0       0     126          0        0
          UMA Hash    256       0       0           0       0      62          0        0

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets Manager Title
2020/05/21 21:01 freebsd 46c2358a6391 5afa2ddd console log report ci-freebsd-main
* Struck through repros no longer work on HEAD.