syzbot


panic: mtx_lock() of spin mutex (null) @ /syzkaller/managers/i386/kernel/sys/kern/uipc_ktls.c:LINE

Status: closed as invalid on 2021/01/11 22:29
Reported-by: syzbot+bc7a217cbfe186297066@syzkaller.appspotmail.com
Fix commit: #syz fix: tcp: don't use KTLS socket option on listening sockets
First crash: 1620d, last: 1419d

Sample crash report:
panic: mtx_lock() of spin mutex (null) @ /syzkaller/managers/i386/kernel/sys/kern/uipc_ktls.c:1034
cpuid = 0
time = 1592247071
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x47/frame 0xfffffe0025a4a630
vpanic() at vpanic+0x1c7/frame 0xfffffe0025a4a690
panic() at panic+0x43/frame 0xfffffe0025a4a6f0
__mtx_lock_flags() at __mtx_lock_flags+0x202/frame 0xfffffe0025a4a750
ktls_get_rx_mode() at ktls_get_rx_mode+0x53/frame 0xfffffe0025a4a780
tcp_default_ctloutput() at tcp_default_ctloutput+0x610/frame 0xfffffe0025a4a900
tcp_ctloutput() at tcp_ctloutput+0x2d4/frame 0xfffffe0025a4a980
sogetopt() at sogetopt+0xf2/frame 0xfffffe0025a4a9f0
kern_getsockopt() at kern_getsockopt+0x13f/frame 0xfffffe0025a4aa70
sys_getsockopt() at sys_getsockopt+0x78/frame 0xfffffe0025a4aab0
ia32_syscall() at ia32_syscall+0x24e/frame 0xfffffe0025a4abf0
int0x80_syscall_common() at int0x80_syscall_common+0x9c/frame 0xfbffcfa0
KDB: enter: panic
[ thread pid 5085 tid 100307 ]
Stopped at      kdb_enter+0x67: movq    $0,0x14a52d6(%rip)
db> 
db> set $lines = 0
db> set $maxwidth = 0
db> show registers
cs                        0x20
ds                        0x3b  ll+0x1a
es                        0x3b  ll+0x1a
fs                        0x13
gs                        0x1b
ss                           0
rax                       0x12
rcx                       0x80  ll+0x5f
rdx         0xffffffff8195e8a8
rbx                          0
rsp         0xfffffe0025a4a610
rbp         0xfffffe0025a4a630
rsi                        0x1
rdi                          0
r8                           0
r9                  0xffffffff
r10                          0
r11         0xfffffe002585a110
r12         0xffffffff82068f70  ddb_dbbe
r13                          0
r14         0xffffffff819a9130
r15         0xffffffff819a9130
rip         0xffffffff810b4917  kdb_enter+0x67
rflags                0x200082  kernphys+0x82
kdb_enter+0x67: movq    $0,0x14a52d6(%rip)
db> show proc
Process 5085 (syz-executor2527742) at 0xfffff80016950520:
 state: NORMAL
 uid: 0  gids: 0, 0, 5
 parent: pid 779 at 0xfffff800162e5000
 ABI: FreeBSD ELF32
 arguments: ./syz-executor252774285
 reaper: 0xfffff80003318000 reapsubtree: 1
 sigparent: 20
 vmspace: 0xfffffe002584b3d0
   (map 0xfffffe002584b3d0)
   (map.pmap 0xfffffe002584b490)
   (pmap 0xfffffe002584b4f0)
 threads: 3
100119                   S       nanslp  0xffffffff8252f1f1  syz-executor2527742
100307                   Run     CPU 0                       syz-executor2527742
100326                   S       uwait   0xfffff8001689ee80  syz-executor2527742
db> ps
  pid  ppid  pgrp   uid  state   wmesg   wchan               cmd
 5085   779   774     0  R       (threaded)                  syz-executor2527742
100119                   S       nanslp  0xffffffff8252f1f1  syz-executor2527742
100307                   Run     CPU 0                       syz-executor2527742
100326                   S       uwait   0xfffff8001689ee80  syz-executor2527742
  780   776   774     0  R       CPU 1                       syz-executor2527742
  779   776   774     0  S       nanslp  0xffffffff8252f1f0  syz-executor2527742
  778   776   774     0  R                                   syz-executor2527742
  777   776   774     0  S       nanslp  0xffffffff8252f1f0  syz-executor2527742
  776   774   774     0  S       nanslp  0xffffffff8252f1f0  syz-executor2527742
  774   772   774     0  Ss      pause   0xfffff80003cdb5c8  csh
  772   682   772     0  Ss      select  0xfffff80003d93bc0  sshd
  748     1   748     0  Ss+     ttyin   0xfffff800037b98b0  getty
  747     1   747     0  Ss+     ttyin   0xfffff80003b35cb0  getty
  746     1   746     0  Ss+     ttyin   0xfffff80003b384b0  getty
  745     1   745     0  Ss+     ttyin   0xfffff80003b38cb0  getty
  744     1   744     0  Ss+     ttyin   0xfffff800033c64b0  getty
  743     1   743     0  Ss+     ttyin   0xfffff800033c6cb0  getty
  742     1   742     0  Ss+     ttyin   0xfffff800033c54b0  getty
  741     1   741     0  Ss+     ttyin   0xfffff800033c5cb0  getty
  740     1   740     0  Ss+     ttyin   0xfffff800033c84b0  getty
  686     1   686     0  Ss      nanslp  0xffffffff8252f1f0  cron
  682     1   682     0  Ss      select  0xfffff80003d852c0  sshd
  495     1   495     0  Ss      select  0xfffff80003d854c0  syslogd
  424     1   424     0  Ss      select  0xfffff80003c04340  devd
  423     1   423    65  Ss      select  0xfffff80003d85740  dhclient
  338     1   338     0  Ss      select  0xfffff800039e1540  dhclient
  335     1   335     0  Ss      select  0xfffff80003c043c0  dhclient
   23     0     0     0  DL      vlruwt  0xfffff800033ef520  [vnlru]
   22     0     0     0  DL      syncer  0xffffffff8261a458  [syncer]
   21     0     0     0  DL      (threaded)                  [bufdaemon]
100069                   D       qsleep  0xffffffff826197a0  [bufdaemon]
100076                   D       -       0xffffffff8200aa00  [bufspacedaemon-0]
100087                   D       sdflush 0xfffff80003d03ce8  [/ worker]
   20     0     0     0  DL      psleep  0xffffffff82640788  [vmdaemon]
   19     0     0     0  DL      (threaded)                  [pagedaemon]
100067                   D       psleep  0xffffffff82634c18  [dom0]
100074                   D       launds  0xffffffff82634c24  [laundry: dom0]
100075                   D       umarcl  0xffffffff8154f240  [uma]
   18     0     0     0  DL      -       0xffffffff82362e58  [rand_harvestq]
   17     0     0     0  DL      pftm    0xffffffff82c593a0  [pf purge]
   16     0     0     0  DL      waiting 0xffffffff8261cbd0  [sctp_iterator]
   15     0     0     0  DL      -       0xffffffff82618dac  [soaiod4]
    9     0     0     0  DL      -       0xffffffff82618dac  [soaiod3]
    8     0     0     0  DL      -       0xffffffff82618dac  [soaiod2]
    7     0     0     0  DL      -       0xffffffff82618dac  [soaiod1]
    6     0     0     0  DL      (threaded)                  [cam]
100033                   D       -       0xffffffff8223abc0  [doneq0]
100066                   D       -       0xffffffff8223aa90  [scanner]
    5     0     0     0  DL      crypto_ 0xfffff80003347690  [crypto returns 1]
    4     0     0     0  DL      crypto_ 0xfffff80003347630  [crypto returns 0]
    3     0     0     0  DL      crypto_ 0xffffffff82632400  [crypto]
   14     0     0     0  DL      seqstat 0xfffff800030e0488  [sequencer 00]
   13     0     0     0  DL      (threaded)                  [geom]
100024                   D       -       0xffffffff8250e180  [g_event]
100025                   D       -       0xffffffff8250e188  [g_up]
100026                   D       -       0xffffffff8250e190  [g_down]
    2     0     0     0  DL      (threaded)                  [KTLS]
100017                   D       -       0xfffff800030f7c00  [thr_0]
100018                   D       -       0xfffff800030f7c40  [thr_1]
   12     0     0     0  WL      (threaded)                  [intr]
100010                   I                                   [swi5: fast taskq]
100013                   I                                   [swi6: task queue]
100014                   I                                   [swi6: Giant taskq]
100019                   I                                   [swi4: clock (0)]
100020                   I                                   [swi4: clock (1)]
100021                   I                                   [swi3: vm]
100022                   I                                   [swi1: netisr 0]
100034                   I                                   [irq24: virtio_pci0]
100035                   I                                   [irq25: virtio_pci0]
100036                   I                                   [irq26: virtio_pci0]
100037                   I                                   [irq27: virtio_pci0]
100038                   I                                   [irq28: virtio_pci1]
100039                   I                                   [irq29: virtio_pci1]
100040                   I                                   [irq30: virtio_pci1]
100041                   I                                   [irq31: virtio_pci1]
100042                   I                                   [irq32: virtio_pci1]
100047                   I                                   [irq10: virtio_pci2]
100049                   I                                   [irq1: atkbd0]
100050                   I                                   [irq12: psm0]
100051                   I                                   [swi0: uart uart++]
100060                   I                                   [swi1: pf send]
100072                   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    0xfffff80003318000  [init]
   10     0     0     0  DL      audit_w 0xffffffff826328d8  [audit]
    0     0     0     0  DLs     (threaded)                  [kernel]
100000                   D       swapin  0xffffffff8250e710  [swapper]
100005                   D       -       0xfffff80003215e00  [if_config_tqg_0]
100006                   D       -       0xfffff80003215d00  [softirq_0]
100007                   D       -       0xfffff80003215c00  [softirq_1]
100008                   D       -       0xfffff80003215b00  [if_io_tqg_0]
100009                   D       -       0xfffff80003215a00  [if_io_tqg_1]
100011                   D       -       0xfffff8000334a000  [kqueue_ctx taskq]
100012                   D       -       0xfffff80003347e00  [aiod_kick taskq]
100015                   D       -       0xfffff80003347b00  [in6m_free taskq]
100016                   D       -       0xfffff80003347a00  [thread taskq]
100023                   D       -       0xfffff80003347900  [firmware taskq]
100028                   D       -       0xfffff80003347700  [crypto_0]
100029                   D       -       0xfffff80003347700  [crypto_1]
100043                   D       -       0xfffff80003347400  [vtnet0 rxq 0]
100044                   D       -       0xfffff80003347300  [vtnet0 txq 0]
100045                   D       -       0xfffff80003347200  [vtnet0 rxq 1]
100046                   D       -       0xfffff80003347100  [vtnet0 txq 1]
100048                   D       vtbslp  0xfffff8000351a580  [virtio_balloon]
100052                   D       -       0xfffff80003347000  [mca taskq]
100057                   D       -       0xffffffff81d4e800  [deadlkres]
100061                   D       -       0xfffff80003b26300  [acpi_task_0]
100062                   D       -       0xfffff80003b26300  [acpi_task_1]
100063                   D       -       0xfffff80003b26300  [acpi_task_2]
100065                   D       -       0xfffff80003347500  [CAM taskq]
 5099   777   774     0  Z                                   syz-executor2527742
db> show all locks
Process 5085 (syz-executor2527742) thread 0xfffffe0025859c00 (100307)
exclusive rw tcpinp (tcpinp) r = 0 (0xfffff800161bbd78) locked @ /syzkaller/managers/i386/kernel/sys/netinet/tcp_usrreq.c:1790
Process 780 (syz-executor2527742) thread 0xfffffe0023bb8500 (100080)
exclusive rw per-fs softdep (per-fs softdep) r = 0 (0xfffff80003d03c00) locked @ /syzkaller/managers/i386/kernel/sys/ufs/ffs/ffs_softdep.c:7993
exclusive lockmgr ufs (ufs) r = 0 (0xfffff800164b3250) locked @ /syzkaller/managers/i386/kernel/sys/kern/vfs_subr.c:2925
exclusive lockmgr ufs (ufs) r = 0 (0xfffff800164c1250) locked @ /syzkaller/managers/i386/kernel/sys/kern/vfs_lookup.c:737
Process 778 (syz-executor2527742) thread 0xfffffe001cfd9500 (100092)
exclusive lockmgr ufs (ufs) r = 0 (0xfffff800164b9dc0) locked @ /syzkaller/managers/i386/kernel/sys/ufs/ffs/ffs_vfsops.c:1774
exclusive lockmgr ufs (ufs) r = 0 (0xfffff800164c1620) locked @ /syzkaller/managers/i386/kernel/sys/kern/vfs_lookup.c:737
db> show malloc
              Type        InUse        MemUse     Requests
           pf_hash            5        11524K            5
            devbuf         4212         4850K         4240
          tcp_hpts            5         3201K            5
          inodedep         4334         2679K         4396
             vtbuf           24         1968K           46
         sysctloid        27849         1625K        27913
              kobj          334         1336K          493
            newblk          431         1132K         4808
            dirrem         4317         1080K         4345
          vfscache            4         1025K            4
          freefile         4316          540K         4342
               pcb           26          537K         4392
         ufs_quota            1          512K            1
          vfs_hash            1          512K            1
           callout            2          512K            2
              intr            4          472K            4
           subproc          122          233K         5173
            acpica         1674          185K        55859
         vnet_data            1          168K            1
           pagedep            9          130K         4341
        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
              umtx          288           36K          288
              temp           18           33K         1552
         hostcache            1           32K            1
               shm            1           32K            1
               msg            4           30K            4
            DEVFS3          120           30K          130
           kdtrace          154           30K        14576
        DEVFS_RULE           56           27K           56
        gtaskqueue           18           26K           18
              vmem            3           22K            4
            kbdmux            6           22K            6
               BPF           10           18K           10
         ufs_mount            4           17K            5
              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           95           12K           99
      eventhandler          132           12K          132
         pfs_nodes           20           10K           20
              GEOM           60           10K          487
              rman           82           10K          423
         bmsafemap            3            9K         4362
              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
            sglist            5            6K            5
         CAM queue            5            6K         1528
              cred           20            5K          244
         taskqueue           45            5K           45
       ufs_dirhash           24            5K           24
             ifnet            3            5K            3
           memdesc            1            4K            1
               MCA           32            4K           32
               UMA          248            4K          248
            plimit           16            4K          338
             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
            kqueue           49            4K         5102
          pf_ifnet            5            3K            6
         in6_multi           25            3K           25
           acpisem           22            3K           22
          terminal           11            3K           11
           session           19            3K           32
              pgrp           19            3K           32
           uidinfo            3            3K            9
        local_apic            1            2K            1
           io_apic            1            2K            1
         ipsec-saq            2            2K            2
            select           14            2K           14
             lockf           16            2K           26
            Unitno           28            2K         6631
           CAM XPT           22            2K          543
         proc-args           36            2K          478
             mkdir           12            2K         8662
            diradd           11            2K         4359
           acpidev           20            2K           20
               msi            9            2K            9
           softdep            1            1K            1
       ipsecpolicy            1            1K            1
            sahead            1            1K            1
          secasvar            1            1K            1
             clone            8            1K            8
       vnodemarker            2            1K           12
      NFSD session            1            1K            1
        CAM periph            4            1K          271
         newdirblk            6            1K         4331
          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
          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
       inpcbpolicy           11            1K         4450
          freework            2            1K         4343
               osd            3            1K            9
          freeblks            1            1K         4342
               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
        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         5791
               tun            3            1K            3
          nexusdev            5            1K            5
           entropy            2            1K           39
          sctp_vrf            1            1K            1
              vnet            1            1K            1
          acpiintr            1            1K            1
               pmc            1            1K            1
              cpus            2            1K            2
    vnet_data_free            1            1K            1
           Per-cpu            1            1K            1
          p1003.1b            1            1K            1
          filecaps            1            1K           66
          pf_table            0            0K            0
           pf_rule            0            0K            0
           pf_altq            0            0K            0
           pf_osfp            0            0K            0
           pf_temp            0            0K            0
           ath_hal            0            0K            0
        madt_table            0            0K            2
            athdev            0            0K            0
           ata_pci            0            0K            0
           ata_dma            0            0K            0
       ata_generic            0            0K            0
               amr            0            0K            0
           scsi_da            0            0K           69
            ata_da            0            0K            0
            pvscsi            0            0K            0
          smartpqi            0            0K            0
           scsi_ch            0            0K            0
           scsi_cd            0            0K            0
            USBdev            0            0K            0
               USB            0            0K            0
       AHCI driver            0            0K            0
               agp            0            0K            0
              iavf            0            0K            0
               ixl            0            0K            0
           nvme_da            0            0K            0
           acpipwr            0            0K            0
            twsbuf            0            0K            0
      twe_commands            0            0K            0
      twa_commands            0            0K            0
       tcp_log_dev            0            0K            0
        ice-resmgr            0            0K            0
         ice-osdep            0            0K            0
               ice            0            0K            0
       fpukern_ctx            0            0K            0
      midi buffers            0            0K            0
          xen_intr            0            0K            0
             mixer            0            0K            0
           xen_hvm            0            0K            0
         legacydrv            0            0K            0
            qpidrv            0            0K            0
              ac97            0            0K            0
             hdacc            0            0K            0
      dmar_idpgtbl            0            0K            0
          dmar_dom            0            0K            0
          dmar_ctx            0            0K            0
       dmar_dmamap            0            0K            0
              hdac            0            0K            0
              hdaa            0            0K            0
         acpi_perf            0            0K            0
              isci            0            0K            0
     hyperv_socket            0            0K            0
           bxe_ilt            0            0K            0
            xenbus            0            0K            0
         acpicmbat            0            0K            0
       SIIS driver            0            0K            0
     vm_fictitious            0            0K            0
           CAM CCB            0            0K         1901
               PUC            0            0K            0
          ppbusdev            0            0K            0
agtiapi_MemAlloc malloc            0            0K            0
    osti_cacheable            0            0K            0
          tempbuff            0            0K            0
          tempbuff            0            0K            0
           UMAHash            0            0K            0
ag_tgt_map_t malloc            0            0K            0
ag_slr_map_t malloc            0            0K            0
         vm_pgdata            0            0K            0
           jblocks            0            0K            0
          savedino            0            0K           13
          sentinel            0            0K            0
            jfsync            0            0K            0
            jtrunc            0            0K            0
             sbdep            0            0K            4
           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            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
               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_timw            0            0K            0
         sctp_cpal            0            0K            0
         sctp_cmsg            0            0K            0
         sctp_stre            0            0K            0
         sctp_athi            0            0K            0
         sctp_athm            0            0K            0
         sctp_atky            0            0K            0
         sctp_atcl            0            0K            0
         sctp_a_it            0            0K            3
         sctp_aadr            0            0K            0
         sctp_stro            0            0K            0
         sctp_stri            0            0K            0
          sctp_map            0            0K            0
      newreno data            0            0K            0
        ip_msource            0            0K            0
       ip_moptions            0            0K            0
        in_mfilter            0            0K            0
              ipid            0            0K            0
         80211scan            0            0K            0
      80211ratectl            0            0K            0
        80211power            0            0K            0
       80211nodeie            0            0K            0
         80211node            0            0K            0
      80211mesh_gt            0            0K            0
      80211mesh_rt            0            0K            0
         80211perr            0            0K            0
         80211prep            0            0K            0
         80211preq            0            0K            0
          80211dfs            0            0K            0
       80211crypto            0            0K            0
          80211vap            0            0K            0
             iflib            0            0K            0
              vlan            0            0K            0
               gif            0            0K            0
           ifdescr            0            0K            0
              zlib            0            0K            0
           fadvise            0            0K            0
tiDeviceHandle_t * malloc            0            0K            0
            statfs            0            0K         4516
       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        12971
          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          575
            sysctl            0            0K            1
              ekcd            0            0K            0
            dumper            0            0K            0
          sendfile            0            0K            0
              rctl            0            0K            0
          ix_sriov            0            0K            0
        aacraidcam            0            0K            0
                ix            0            0K            0
            ipsbuf            0            0K            0
            iirbuf            0            0K            0
             cache            0            0K            0
       aacraid_buf            0            0K            0
          kcovinfo            0            0K            0
      prison_racct            0            0K            0
       Fail Points            0            0K            0
             sigio            0            0K            1
filedesc_to_leader            0            0K            0
               pwd            0            0K            0
       tty console            0            0K            0
            aaccam            0            0K            0
            aacbuf            0            0K            0
              zstd            0            0K            0
            nvlist            0            0K            0
          SCSI ENC            0            0K            0
           SCSI sa            0            0K            0
        isofs_node            0            0K            0
       isofs_mount            0            0K            0
     tr_raid5_data            0            0K            0
    tr_raid1e_data            0            0K            0
     tr_raid1_data            0            0K            0
     tr_raid0_data            0            0K            0
    tr_concat_data            0            0K            0
       md_sii_data            0            0K            0
   md_promise_data            0            0K            0
    md_nvidia_data            0            0K            0
   md_jmicron_data            0            0K            0
     md_intel_data            0            0K            0
       md_ddf_data            0            0K            0
         raid_data            0            0K           72
     geom_flashmap            0            0K            0
           NFS FHA            0            0K            0
         newnfsmnt            0            0K            0
  newnfsclient_req            0            0K            0
   NFSCL layrecall            0            0K            0
     NFSCL session            0            0K            0
     NFSCL sockreq            0            0K            0
     NFSCL devinfo            0            0K            0
     NFSCL flayout            0            0K            0
      NFSCL layout            0            0K            0
     NFSD rollback            0            0K            0
NFSCL diroffdiroff            0            0K            0
       NEWdirectio            0            0K            0
        NEWNFSnode            0            0K            0
         NFSCL lck            0            0K            0
      NFSCL lckown            0            0K            0
      NFSCL client            0            0K            0
       NFSCL deleg            0            0K            0
        NFSCL open            0            0K            0
       NFSCL owner            0            0K            0
            NFS fh            0            0K            0
           NFS req            0            0K            0
     NFSD usrgroup            0            0K            0
       NFSD string            0            0K            0
       NFSD V4lock            0            0K            0
      NFSD V4state            0            0K            0
     NFSD srvcache            0            0K            0
       msdosfs_fat            0            0K            0
     msdosfs_mount            0            0K            0
      msdosfs_node            0            0K            0
            DEVFS4            0            0K            0
            DEVFS2            0            0K            0
            gntdev            0            0K            0
       privcmd_dev            0            0K            0
        evtchn_dev            0            0K            0
          xenstore            0            0K            0
         scsi_pass            0            0K            0
         ciss_data            0            0K            0
               xnb            0            0K            0
              xbbd            0            0K            0
               xbd            0            0K            0
           Balloon            0            0K            0
          sysmouse            0            0K            0
            vtfont            0            0K            0
db> show uma
              Zone   Size    Used    Free    Requests  Sleeps  Bucket  Total Mem    XFree
      mbuf_cluster   2048    9272     126        9272       0     254   19247104        0
       mbuf_packet    256    8192     952       26078       0     254    2340864        0
               512    512    4355      29        4535       0      30    2244608        0
               512    512    4180      20        4181       0      30    2150400        0
   mbuf_jumbo_page   4096       0     508          10       0     254    2080768        0
          BUF TRIE    144     170   13326         560       0      62    1943424        0
              4096   4096     389       7        6048       0       2    1622016        0
               128    128    9248      83       14950       0     126    1194368        0
               256    256    4564      86       14022       0      62    1190400        0
       UMA Slabs 0    112    7137      21        7137       0     126     801696        0
              pbuf    832       0     953           0       0       2     792896        0
               128    128    4875      54        5798       0     126     630912        0
             tcpcb   1040       4     513        4326       0     254     537680        0
            socket    904      15     498        5483       0     254     463752        0
             65536  65536       6       0           6       0       1     393216        0
        RADIX NODE    144    2014     223       92910       0      62     322128        0
        256 Bucket   2048     130      14         391       0       8     294912        0
             VNODE    488     523      53        4867       0      30     281088        0
              mbuf    256     385     641       10312       0     254     262656        0
         VM OBJECT    264     897      93       60026       0      30     261360        0
            THREAD   1792     127      17        4447       0       8     258048        0
         tcp_inpcb    488       8     504        4326       0     254     249856        0
         udp_inpcb    488       2     510         120       0     254     249856        0
                64     64    2747     340        8044       0     254     197568        0
             65536  65536       1       2          54       0       1     196608        0
               128    128    1283     236       34227       0     126     194432        0
                16     16   11706     294       11921       0     254     192000        0
         UMA Zones    768     222       4         222       0      16     173568        0
                32     32    4429     485        4621       0     254     157248        0
              2048   2048       7      65        2672       0       8     147456        0
              1024   1024     129      15         139       0      16     147456        0
       FFS2 dinode    256     493      77        4835       0      62     145920        0
             65536  65536       2       0           2       0       1     131072        0
             unpcb    256       7     503        1016       0     254     130560        0
               256    256     432      78        4827       0      62     130560        0
             ripcb    488       1     255           4       0     254     124928        0
         MAP ENTRY     96     825     435      102232       0     126     120960        0
          ksiginfo    112      56     988          73       0     126     116928        0
         vmem btag     56    1838     237        1838       0     254     116200        0
             g_bio    408       0     270        5258       0      30     110160        0
              PROC   1312      48      24        5099       0       8      94464        0
         FFS inode    160     494      81        4836       0      62      92000        0
           VMSPACE   2536      25      11        5079       0       4      91296        0
        128 Bucket   1024      43      40         262       0      16      84992        0
         filedesc0   1088      48      29        5100       0       8      83776        0
          UMA Kegs    384     208       7         208       0      30      82560        0
       S VFS Cache    108     591     165        5436       0     126      81648        0
              1024   1024      10      58         281       0      16      69632        0
                64     64     607     464       14329       0     254      68544        0
               128    128     341     186        9035       0     126      67456        0
               128    128     308     219         393       0     126      67456        0
             65536  65536       0       1         112       0       1      65536        0
             32768  32768       2       0           2       0       1      65536        0
             16384  16384       3       1           4       0       1      65536        0
             16384  16384       4       0           4       0       1      65536        0
              8192   8192       6       2           8       0       1      65536        0
              4096   4096      15       1          28       0       2      65536        0
            clpbuf    832       0      64         114       0      16      53248        0
                64     64     282     537        5384       0     254      52416        0
                64     64     445     374         679       0     254      52416        0
               256    256      59     136        4512       0      62      49920        0
         32 Bucket    256      37     158         638       0      62      49920        0
           DIRHASH   1024      34      14          34       0      16      49152        0
             NAMEI   1024       1      47       28829       0      16      49152        0
               512    512      77      19         398       0      30      49152        0
          syncache    168       0     264           5       0     254      44352        0
              8192   8192       4       1          32       0       1      40960        0
              pipe    760       6      44         282       0      16      38000        0
         64 Bucket    512      59      13        1730       0      30      36864        0
             selfd     64      33     534       33180       0     254      36288        0
                64     64      12     555          26       0     254      36288        0
                64     64      12     555          36       0     254      36288        0
                64     64      33     534          65       0     254      36288        0
                64     64      33     534        4384       0     254      36288        0
               128    128      19     260          77       0     126      35712        0
               128    128      13     266          14       0     126      35712        0
               128    128      62     217          67       0     126      35712        0
     routing nhops    256       8     127          18       0      62      34560        0
           ttyoutq    256      72      63         160       0      62      34560        0
               256    256      34     101        9001       0      62      34560        0
               256    256      22     113         682       0      62      34560        0
               256    256      64      71         156       0      62      34560        0
               256    256       9     126        5550       0      62      34560        0
               256    256      64      71         644       0      62      34560        0
             32768  32768       1       0           1       0       1      32768        0
             32768  32768       0       1         112       0       1      32768        0
              4096   4096       8       0          12       0       2      32768        0
              2048   2048       4      12          16       0       8      32768        0
              2048   2048       5      11           6       0       8      32768        0
              2048   2048       3      13         194       0       8      32768        0
              1024   1024       2      30          31       0      16      32768        0
              1024   1024       9      23         875       0      16      32768        0
              1024   1024       4      28          22       0      16      32768        0
               512    512       4      60          33       0      30      32768        0
               512    512      19      45          20       0      30      32768        0
               512    512       2      62         510       0      30      32768        0
     mt_stats_zone     64     443      69         443       0     254      32768        0
           64 pcpu      8    3393     703        3395       0     254      32768        0
            ttyinq    160     135      65         300       0      62      32000        0
            cpuset    104       7     272           7       0     126      29016        0
        sctp_laddr     48       0     588           4       0     254      28224        0
         hostcache     96       1     293           1       0     254      28224        0
               PWD     32      15     867        4423       0     254      28224        0
                32     32     313     569         375       0     254      28224        0
          4 Bucket     48       7     581        8401       0     254      28224        0
        KMAP ENTRY     96      12     279          12       0     126      27936        0
           rtentry    208      14     119          18       0      62      27664        0
         TURNSTILE    136     145      44         145       0      62      25704        0
              8192   8192       3       0           3       0       1      24576        0
              4096   4096       2       4        4518       0       2      24576        0
          rl_entry     40      28     578          28       0     254      24240        0
      vtnet_tx_hdr     24       0    1002        5199       0     254      24048        0
          8 Bucket     80      44     256       15229       0     126      24000        0
       Mountpoints   2816       2       6           2       0       4      22528        0
        SLEEPQUEUE     88     145     111         145       0     126      22528        0
             udpcb     32       2     628         120       0     254      20160        0
             Files     72      66     214       14982       0     126      20160        0
                32     32      20     610          39       0     254      20160        0
                32     32      45     585        7729       0     254      20160        0
                32     32      36     594         131       0     254      20160        0
                32     32      34     596         793       0     254      20160        0
                32     32      47     583        7202       0     254      20160        0
                32     32      28     602         806       0     254      20160        0
         16 Bucket    144      51      89        3637       0      62      20160        0
          2 Bucket     32      42     588       11567       0     254      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
              8192   8192       2       0           2       0       1      16384        0
              8192   8192       1       1          82       0       1      16384        0
              8192   8192       2       0           2       0       1      16384        0
              4096   4096       0       4           3       0       2      16384        0
              4096   4096       2       2           2       0       2      16384        0
              2048   2048       7       1           7       0       8      16384        0
              2048   2048       1       7           1       0       8      16384        0
              1024   1024       1      15           1       0      16      16384        0
              1024   1024       1      15           1       0      16      16384        0
              1024   1024       6      10           6       0      16      16384        0
               512    512      11      21          11       0      30      16384        0
               512    512       1      31           4       0      30      16384        0
           mt_zone     24     443     225         443       0     254      16032        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
             KNOTE    160       0      75           8       0      62      12000        0
                16     16      11     739          45       0     254      12000        0
                16     16      30     720          71       0     254      12000        0
                16     16     258     492         415       0     254      12000        0
                16     16      16     734          38       0     254      12000        0
                16     16      26     724       25422       0     254      12000        0
                16     16      13     737         275       0     254      12000        0
              8192   8192       1       0           1       0       1       8192        0
              8192   8192       1       0           1       0       1       8192        0
              4096   4096       1       1           1       0       2       8192        0
              4096   4096       1       1           1       0       2       8192        0
           SMR CPU     32       1     254           1       0     254       8160        0
                16     16     185     315        1239       0     254       8000        0
        SMR SHARED     24       1     254           1       0     254       6120        0
              2048   2048       0       2          32       0       8       4096        0
       UMA Slabs 1    176       8      14           8       0      62       3872        0
          int pcpu      4      34     478          34       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
       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
        sctp_chunk    152       0       0           0       0     254          0        0
        sctp_raddr    736       0       0           0       0     254          0        0
         sctp_asoc   2288       0       0           0       0     254          0        0
           sctp_ep   1280       0       0           0       0     254          0        0
      tcp_log_node    120       0       0           0       0     126          0        0
    tcp_log_bucket    184       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
             rentr     24       0       0           0       0     254          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
         VNODEPOLL    120       0       0           0       0     126          0        0
    crypto_session     72       0       0           0       0     126          0        0
           cryptop    272       0       0           0       0      30          0        0
      nvme_request    128       0       0           0       0     126          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
             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
             16384  16384       0       0           0       0       1          0        0
              2048   2048       0       0           0       0       8          0        0
            fakepg    104       0       0           0       0     126          0        0
          UMA Hash    256       0       0           0       0      62          0        0
db> 

Crashes (6):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2020/06/15 18:53 freebsd ad49a04033c5 8e3ab941 console log report syz C ci-freebsd-i386
2021/01/02 12:26 freebsd de1aa3dab23c 79264ae3 console log report ci-freebsd-i386
2020/10/18 10:31 freebsd f0fd1b9d7d64 fea47c01 console log report ci-freebsd-i386
2020/06/30 00:51 freebsd 5ca3c99233c0 ce9ef6f2 console log report ci-freebsd-i386
2020/06/24 11:42 freebsd 70964a89a165 bbad15ae console log report ci-freebsd-i386
2020/06/24 00:11 freebsd 49baceb91aae 8e0c064e console log report ci-freebsd-i386
* Struck through repros no longer work on HEAD.