syzbot


Fatal trap 12: page fault in _sx_xlock_hard

Status: closed as dup on 2021/09/09 12:52
Reported-by: syzbot+3739cdf68709682d30b4@syzkaller.appspotmail.com
First crash: 2031d, last: 1253d
Duplicate of
Title Repro Cause bisect Fix bisect Count Last Reported
panic: mtx_lock() of spin mutex (null) @ /syzkaller/managers/main/kernel/sys/netinet/tcp_output.c:LINE syz 707 1193d 2078d

Sample crash report:
Fatal trap 12: page fault while in kernel mode
cpuid = 0; apic id = 00
fault virtual address	= 0x438
fault code		= supervisor read data, page not present
instruction pointer	= 0x20:0xffffffff81049675
stack pointer	        = 0x28:0xfffffe00255c16d0
frame pointer	        = 0x28:0xfffffe00255c1770
code segment		= base 0x0, limit 0xfffff, type 0x1b
			= DPL 0, pres 1, long 1, def32 0, gran 1
processor eflags	= interrupt enabled, resume, IOPL = 0
current process		= 773 (syz-executor6741991)
trap number		= 12
panic: page fault
cpuid = 0
time = 1590172889
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x47/frame 0xfffffe00255c1320
vpanic() at vpanic+0x1c7/frame 0xfffffe00255c1380
panic() at panic+0x43/frame 0xfffffe00255c13e0
trap_fatal() at trap_fatal+0x4ca/frame 0xfffffe00255c1460
trap_pfault() at trap_pfault+0xdc/frame 0xfffffe00255c14e0
trap() at trap+0x3f8/frame 0xfffffe00255c1600
calltrap() at calltrap+0x8/frame 0xfffffe00255c1600
--- trap 0xc, rip = 0xffffffff81049675, rsp = 0xfffffe00255c16d0, rbp = 0xfffffe00255c1770 ---
_sx_xlock_hard() at _sx_xlock_hard+0x355/frame 0xfffffe00255c1770
_sx_xlock() at _sx_xlock+0x13d/frame 0xfffffe00255c17c0
hvs_trans_close() at hvs_trans_close+0x65/frame 0xfffffe00255c17f0
soclose() at soclose+0x22c/frame 0xfffffe00255c1870
_fdrop() at _fdrop+0x38/frame 0xfffffe00255c18a0
closef() at closef+0x28b/frame 0xfffffe00255c1930
fdescfree_fds() at fdescfree_fds+0xb4/frame 0xfffffe00255c1980
fdescfree() at fdescfree+0x582/frame 0xfffffe00255c1a40
exit1() at exit1+0x6c5/frame 0xfffffe00255c1ab0
sys_sys_exit() at sys_sys_exit+0xd/frame 0xfffffe00255c1ac0
amd64_syscall() at amd64_syscall+0x262/frame 0xfffffe00255c1bf0
fast_syscall_common() at fast_syscall_common+0x101/frame 0xfffffe00255c1bf0
--- syscall (1, FreeBSD ELF64, sys_sys_exit), rip = 0x290eea, rsp = 0x7fffffffea78, rbp = 0x7fffffffea90 ---
KDB: enter: panic
[ thread pid 773 tid 100104 ]
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                       0x80  ll+0x5f
rdx         0xffffffff818a7a3c
rbx                          0
rsp         0xfffffe00255c1300
rbp         0xfffffe00255c1320
rsi                        0x1
rdi                          0
r8                           0
r9                  0xffffffff
r10                        0x1
r11         0xfffffe001cff7d00
r12         0xffffffff82068e40  ddb_dbbe
r13                          0
r14         0xffffffff819482dc
r15         0xffffffff819482dc
rip         0xffffffff810ac507  kdb_enter+0x67
rflags                    0x86  ll+0x65
kdb_enter+0x67: movq    $0,0x14ab366(%rip)
db> show proc
Process 773 (syz-executor6741991) at 0xfffff8000c3fa000:
 state: NORMAL
 uid: 0  gids: 0, 0, 5
 parent: pid 771 at 0xfffff80003ce4a40
 ABI: FreeBSD ELF64
 arguments: ./syz-executor674199109
 reaper: 0xfffff80003311000 reapsubtree: 1
 sigparent: 20
 vmspace: 0xfffffe001cff89e8
   (map 0xfffffe001cff89e8)
   (map.pmap 0xfffffe001cff8aa8)
   (pmap 0xfffffe001cff8b08)
 threads: 1
100104                   Run     CPU 0                       syz-executor6741991
db> ps
  pid  ppid  pgrp   uid  state   wmesg   wchan               cmd
  773   771   771     0  RE      CPU 0                       syz-executor6741991
  771   769   771     0  Ss      pause   0xfffff80003ce4ae8  csh
  769   682   769     0  Ss      select  0xfffff80003c76640  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
  738     1    24     0  S+      piperd  0xfffff80003cf52f8  logger
  737   736    24     0  S+      nanslp  0xffffffff8252c1e0  sleep
  736     1    24     0  S+      wait    0xfffff80003ce1000  sh
  686     1   686     0  Ss      nanslp  0xffffffff8252c1e0  cron
  682     1   682     0  Ss      select  0xfffff80003c34c40  sshd
  495     1   495     0  Ss      select  0xfffff80003c76ec0  syslogd
  424     1   424     0  Ss      select  0xfffff80003c76f40  devd
  423     1   423    65  Ss      select  0xfffff80003c34cc0  dhclient
  338     1   338     0  Ss      select  0xfffff80003c76740  dhclient
  335     1   335     0  Ss      select  0xfffff80003c33740  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]
100087                   D       sdflush 0xfffff80003cf0ce8  [/ 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  0xffffffff81544500  [uma]
   18     0     0     0  DL      -       0xffffffff8235fe58  [rand_harvestq]
   17     0     0     0  DL      pftm    0xffffffff82c4e3a0  [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_ 0xfffff8000320ce90  [crypto returns 1]
    4     0     0     0  DL      crypto_ 0xfffff8000320ce30  [crypto returns 0]
    3     0     0     0  DL      crypto_ 0xffffffff826300c0  [crypto]
   14     0     0     0  DL      seqstat 0xfffff800030d6088  [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       -       0xfffff80003326600  [thr_0]
100018                   D       -       0xfffff80003326640  [thr_1]
   12     0     0     0  WL      (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                   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                   Run     CPU 1                       [idle: cpu1]
    1     0     1     0  SLs     wait    0xfffff80003311000  [init]
   10     0     0     0  DL      audit_w 0xffffffff82630598  [audit]
    0     0     0     0  DLs     (threaded)                  [kernel]
100000                   D       swapin  0xffffffff8250b710  [swapper]
100005                   D       -       0xfffff8000321bb00  [softirq_0]
100006                   D       -       0xfffff8000321b900  [softirq_1]
100007                   D       -       0xfffff8000321b700  [if_io_tqg_0]
100008                   D       -       0xfffff8000321b500  [if_io_tqg_1]
100009                   D       -       0xfffff8000321b300  [if_config_tqg_0]
100010                   D       -       0xfffff80003204e00  [in6m_free taskq]
100011                   D       -       0xfffff80003204d00  [thread taskq]
100013                   D       -       0xfffff80003204b00  [kqueue_ctx taskq]
100014                   D       -       0xfffff80003204a00  [aiod_kick taskq]
100023                   D       -       0xfffff80003204700  [firmware taskq]
100028                   D       -       0xfffff80003204500  [crypto_0]
100029                   D       -       0xfffff80003204500  [crypto_1]
100043                   D       -       0xfffff80003204200  [vtnet0 rxq 0]
100044                   D       -       0xfffff80003204100  [vtnet0 txq 0]
100045                   D       -       0xfffff80003204000  [vtnet0 rxq 1]
100046                   D       -       0xfffff80003203e00  [vtnet0 txq 1]
100048                   D       vtbslp  0xfffff800034f0580  [virtio_balloon]
100052                   D       -       0xfffff80003203c00  [mca taskq]
100056                   D       -       0xffffffff81ce9e01  [deadlkres]
100062                   D       -       0xfffff80003b7f000  [acpi_task_0]
100063                   D       -       0xfffff80003b7f000  [acpi_task_1]
100064                   D       -       0xfffff80003b7f000  [acpi_task_2]
100065                   D       -       0xfffff80003204300  [CAM taskq]
db> show all locks
db> show malloc
              Type        InUse        MemUse     Requests
           pf_hash            5        11524K            5
            devbuf         4213         4851K         4238
          tcp_hpts            5         3201K            5
             vtbuf           24         1968K           46
         sysctloid        27849         1625K        27913
              kobj          333         1332K          490
            newblk          539         1159K          557
          vfscache            4         1025K            4
               pcb           21          537K           75
          inodedep           48          536K           71
         ufs_quota            1          512K            1
          vfs_hash            1          512K            1
           callout            2          512K            2
              intr            4          388K            4
           subproc          104          213K          832
            acpica         1674          185K        52709
         vnet_data            1          168K            1
           pagedep           14          132K           18
        tfo_ccache            1          128K            1
               sem            4          106K            4
            DEVFS1          101          101K          110
            linker          238           96K          267
               bus          969           79K         3349
          mtx_pool            2           72K            2
          syncache            1           68K            1
          acpitask            1           64K            1
       ddb_capture            1           64K            1
            module          500           63K          500
              temp           18           33K         1534
         hostcache            1           32K            1
               shm            1           32K            1
               msg            4           30K            4
            DEVFS3          120           30K          130
              umtx          234           30K          234
           kdtrace          146           28K         1602
        DEVFS_RULE           56           27K           56
        gtaskqueue           18           26K           18
              vmem            3           22K            4
            kbdmux            6           22K            6
               BPF           10           18K           10
         ufs_mount            3           17K            4
              proc            3           17K            3
               tty           16           16K           16
           tidhash            1           16K            1
           ithread           98           16K           98
            bus-sc           30           14K         1431
            ifaddr           32           13K           32
            KTRACE          100           13K          100
              kenv           95           12K           99
      eventhandler          132           12K          132
         pfs_nodes           20           10K           20
              GEOM           60           10K          484
              rman           82           10K          423
         bmsafemap            3            9K           40
              UART           12            9K           12
           devstat            4            9K            4
               rpc            2            8K            2
             shmfd            1            8K            1
       pfs_vncache            1            8K            1
     audit_evclass          233            8K          291
           CAM DEV            3            6K          510
                vt           11            6K           11
              cred           21            6K          234
            sglist            5            6K            5
         CAM queue            5            6K         1528
         taskqueue           45            5K           45
       ufs_dirhash           24            5K           24
            dirrem           17            5K           28
            plimit           17            5K          322
             ifnet            3            5K            3
           memdesc            1            4K            1
               MCA           32            4K           32
               UMA          248            4K          248
             evdev            4            4K            4
          filedesc            1            4K            1
           lltable           11            4K           11
          routetbl           14            4K           14
             hhook           13            4K           13
       ether_multi           40            4K           45
            diradd           25            4K           36
          pf_ifnet            5            3K            6
         in6_multi           25            3K           25
            kqueue           46            3K          776
           acpisem           22            3K           22
          terminal           11            3K           11
           session           20            3K           31
              pgrp           20            3K           31
           uidinfo            3            3K            8
            select           17            3K           17
        local_apic            1            2K            1
           io_apic            1            2K            1
         ipsec-saq            2            2K            2
         proc-args           39            2K          472
           CAM XPT           22            2K          543
             lockf           15            2K           22
            Unitno           25            2K           37
           acpidev           20            2K           20
               msi            9            2K            9
           softdep            1            1K            1
       ipsecpolicy            1            1K            1
            sahead            1            1K            1
          secasvar            1            1K            1
             clone            8            1K            8
       vnodemarker            2            1K            6
      NFSD session            1            1K            1
        CAM periph            4            1K          271
          indirdep            3            1K            3
             nhops            6            1K            6
         toponodes            6            1K            6
            isadev            6            1K            6
             mount           16            1K           86
          pci_link           10            1K           10
            ip6ndp            4            1K            5
          sctp_ifa            5            1K            5
            crypto            3            1K            3
         newdirblk            4            1K            8
             mkdir            4            1K           16
          in_multi            2            1K            3
              pfil            4            1K            4
    chacha20random            1            1K            1
           CAM SIM            2            1K            2
             epoch            4            1K            4
              cdev            2            1K            2
 encap_export_host            8            1K            8
               osd            3            1K            9
     hyperv_socket            1            1K            1
               mld            2            1K            2
          sctp_ifn            2            1K            2
              igmp            2            1K            2
            vnodes            1            1K            1
      NFSD lckfile            1            1K            1
     NFSD V4client            1            1K            1
             DEVFS            9            1K           10
            feeder            7            1K            7
       inpcbpolicy            6            1K          129
        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         5788
          filecaps            4            1K           66
               tun            3            1K            3
          nexusdev            5            1K            5
           entropy            2            1K           35
          freework            1            1K           26
          sctp_vrf            1            1K            1
              vnet            1            1K            1
          acpiintr            1            1K            1
               pmc            1            1K            1
              cpus            2            1K            2
    vnet_data_free            1            1K            1
           Per-cpu            1            1K            1
          p1003.1b            1            1K            1
          pf_table            0            0K            0
           pf_rule            0            0K            0
           pf_altq            0            0K            0
           pf_osfp            0            0K            0
           pf_temp            0            0K            0
            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            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
           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         1794
               PUC            0            0K            0
          ppbusdev            0            0K            0
agtiapi_MemAlloc malloc            0            0K            0
    osti_cacheable            0            0K            0
          tempbuff            0            0K            0
          tempbuff            0            0K            0
           UMAHash            0            0K            0
ag_tgt_map_t malloc            0            0K            0
ag_slr_map_t malloc            0            0K            0
         vm_pgdata            0            0K            0
           jblocks            0            0K            0
          savedino            0            0K           13
          sentinel            0            0K            0
            jfsync            0            0K            0
            jtrunc            0            0K            0
             sbdep            0            0K            2
           jsegdep            0            0K            0
              jseg            0            0K            0
         jfreefrag            0            0K            0
          jfreeblk            0            0K            0
           jnewblk            0            0K            0
            jmvref            0            0K            0
           jremref            0            0K            0
           jaddref            0            0K            0
           freedep            0            0K            0
          freefile            0            0K            9
          freeblks            0            0K           25
          freefrag            0            0K            7
        allocindir            0            0K            0
       allocdirect            0            0K            0
          ufs_trim            0            0K            0
           mactemp            0            0K            0
     audit_trigger            0            0K            0
 audit_pipe_presel            0            0K            0
     audit_pipeent            0            0K            0
        audit_pipe            0            0K            0
      audit_evname            0            0K            0
         audit_bsm            0            0K            0
      audit_gidset            0            0K            0
        audit_text            0            0K            0
        audit_path            0            0K            0
        audit_data            0            0K            0
        audit_cred            0            0K            0
             xform            0            0K            0
               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          195
       export_host            0            0K            0
        cl_savebuf            0            0K            3
ag_portal_data_t malloc            0            0K            0
ag_device_t malloc            0            0K            0
     STLock malloc            0            0K            0
          CCB List            0            0K            0
            sr_iov            0            0K            0
               OCS            0            0K            0
               OCS            0            0K            0
              nvme            0            0K            0
               nvd            0            0K            0
            netmap            0            0K            0
            mwldev            0            0K            0
        MVS driver            0            0K            0
     CAM ccb queue            0            0K            0
          mrsasbuf            0            0K            0
          mpt_user            0            0K            0
          mps_user            0            0K            0
            biobuf            0            0K            0
              aios            0            0K            0
               lio            0            0K            0
               acl            0            0K            0
            MPSSAS            0            0K            0
          mbuf_tag            0            0K           25
              accf            0            0K            0
               pts            0            0K            0
               iov            0            0K        13017
          ioctlops            0            0K           85
           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
        compressor            0            0K            0
           malodev            0            0K            0
              SWAP            0            0K            0
               LED            0            0K            0
         sysctltmp            0            0K          574
            sysctl            0            0K            1
              ekcd            0            0K            0
            dumper            0            0K            0
          sendfile            0            0K            0
              rctl            0            0K            0
          ix_sriov            0            0K            0
        aacraidcam            0            0K            0
                ix            0            0K            0
            ipsbuf            0            0K            0
            iirbuf            0            0K            0
             cache            0            0K            0
       aacraid_buf            0            0K            0
          kcovinfo            0            0K            0
      prison_racct            0            0K            0
       Fail Points            0            0K            0
             sigio            0            0K            1
filedesc_to_leader            0            0K            0
               pwd            0            0K            0
       tty console            0            0K            0
            aaccam            0            0K            0
            aacbuf            0            0K            0
              zstd            0            0K            0
            nvlist            0            0K            0
          SCSI ENC            0            0K            0
           SCSI sa            0            0K            0
        isofs_node            0            0K            0
       isofs_mount            0            0K            0
     tr_raid5_data            0            0K            0
    tr_raid1e_data            0            0K            0
     tr_raid1_data            0            0K            0
     tr_raid0_data            0            0K            0
    tr_concat_data            0            0K            0
       md_sii_data            0            0K            0
   md_promise_data            0            0K            0
    md_nvidia_data            0            0K            0
   md_jmicron_data            0            0K            0
     md_intel_data            0            0K            0
       md_ddf_data            0            0K            0
         raid_data            0            0K           72
     geom_flashmap            0            0K            0
           NFS FHA            0            0K            0
         newnfsmnt            0            0K            0
  newnfsclient_req            0            0K            0
   NFSCL layrecall            0            0K            0
     NFSCL session            0            0K            0
     NFSCL sockreq            0            0K            0
     NFSCL devinfo            0            0K            0
     NFSCL flayout            0            0K            0
      NFSCL layout            0            0K            0
     NFSD rollback            0            0K            0
NFSCL diroffdiroff            0            0K            0
       NEWdirectio            0            0K            0
        NEWNFSnode            0            0K            0
         NFSCL lck            0            0K            0
      NFSCL lckown            0            0K            0
      NFSCL client            0            0K            0
       NFSCL deleg            0            0K            0
        NFSCL open            0            0K            0
       NFSCL owner            0            0K            0
            NFS fh            0            0K            0
           NFS req            0            0K            0
     NFSD usrgroup            0            0K            0
       NFSD string            0            0K            0
       NFSD V4lock            0            0K            0
      NFSD V4state            0            0K            0
     NFSD srvcache            0            0K            0
       msdosfs_fat            0            0K            0
     msdosfs_mount            0            0K            0
      msdosfs_node            0            0K            0
            DEVFS4            0            0K            0
            DEVFS2            0            0K            0
            gntdev            0            0K            0
       privcmd_dev            0            0K            0
        evtchn_dev            0            0K            0
          xenstore            0            0K            0
         scsi_pass            0            0K            0
         ciss_data            0            0K            0
               xnb            0            0K            0
              xbbd            0            0K            0
               xbd            0            0K            0
           Balloon            0            0K            0
          sysmouse            0            0K            0
db> show uma
              Zone   Size    Used    Free    Requests  Sleeps  Bucket  Total Mem    XFree
      mbuf_cluster   2048    9780     126        9780       0     254   20287488        0
       mbuf_packet    256    8192    1460       25197       0     254    2470912        0
               512    512    4138      38        4140       0      30    2138112        0
   mbuf_jumbo_page   4096       0     508          10       0     254    2080768        0
          BUF TRIE    144     169   13327         519       0      62    1943424        0
              4096   4096     333       3         490       0       2    1376256        0
               128    128    9856     126        9873       0     126    1277696        0
              pbuf    832       0     969           0       0       2     806208        0
       UMA Slabs 0    112    6856      14        6856       0     126     769440        0
             tcpcb   1032       3     514           7       0     254     533544        0
            socket    904      15     498        1162       0     254     463752        0
        RADIX NODE    144    2038     199       19379       0      62     322128        0
        256 Bucket   2048     121      17         873       0       8     282624        0
             VNODE    488     528      16         539       0      30     265472        0
             65536  65536       4       0           4       0       1     262144        0
             ripcb    488       1     511           4       0     254     249856        0
         tcp_inpcb    488       3     509           7       0     254     249856        0
         udp_inpcb    488       2     510         118       0     254     249856        0
         VM OBJECT    264     891      39       12426       0      30     245520        0
            THREAD   1776     104      13         104       0       8     207792        0
              4096   4096      47       3         778       0       2     204800        0
              mbuf    256     386     387        2002       0     254     197888        0
                64     64    2681     406        2709       0     254     197568        0
             65536  65536       2       1         114       0       1     196608        0
                16     16   11711     289       11805       0     254     192000        0
               128    128    1134     261       23944       0     126     178560        0
         UMA Zones    768     222       4         222       0      16     173568        0
               256    256     560      70         697       0      62     161280        0
                32     32    4398     264        5472       0     254     149184        0
              1024   1024     118      26         128       0      16     147456        0
       FFS2 dinode    256     499      71         508       0      62     145920        0
             65536  65536       0       2          43       0       1     131072        0
             65536  65536       2       0           2       0       1     131072        0
             unpcb    256       7     503        1015       0     254     130560        0
         MAP ENTRY     96     836     424       37194       0     126     120960        0
          ksiginfo    112      35    1009          50       0     126     116928        0
         vmem btag     56    1760     315        1760       0     254     116200        0
              2048   2048       2      54        1828       0       8     114688        0
              4096   4096      23       1          34       0       2      98304        0
         FFS inode    160     499      76         508       0      62      92000        0
             g_bio    408       0     210        4829       0      30      85680        0
        128 Bucket   1024      41      42         211       0      16      84992        0
           VMSPACE   2536      23      10         752       0       4      83688        0
          UMA Kegs    384     208       7         208       0      30      82560        0
       S VFS Cache    108     584     172        1103       0     126      81648        0
              PROC   1312      45      12         773       0       8      74784        0
              1024   1024       4      64         275       0      16      69632        0
                64     64     516     555        1706       0     254      68544        0
                64     64     514     557        1566       0     254      68544        0
               128    128     303     224         435       0     126      67456        0
             65536  65536       1       0           1       0       1      65536        0
             65536  65536       0       1           8       0       1      65536        0
             32768  32768       2       0           2       0       1      65536        0
               256    256     134     121         440       0      62      65280        0
               256    256     171      84        1029       0      62      65280        0
         filedesc0   1088      46      10         774       0       8      60928        0
              8192   8192       4       3          32       0       1      57344        0
               128    128     173     230         209       0     126      51584        0
               128    128     167     236         526       0     126      51584        0
           ttyoutq    256      72     123         160       0      62      49920        0
         32 Bucket    256      32     163         370       0      62      49920        0
           DIRHASH   1024      34      14          34       0      16      49152        0
             NAMEI   1024       0      48       11460       0      16      49152        0
             16384  16384       3       0           3       0       1      49152        0
             16384  16384       2       1           3       0       1      49152        0
              2048   2048       6      18         515       0       8      49152        0
               512    512      60      36         177       0      30      49152        0
               512    512      51      45         587       0      30      49152        0
               512    512      74      22         395       0      30      49152        0
          syncache    168       0     264           5       0     254      44352        0
              8192   8192       4       1          85       0       1      40960        0
            clpbuf    832       0      48         129       0      16      39936        0
              pipe    760       7      43         280       0      16      38000        0
         64 Bucket    512      56      16         401       0      30      36864        0
             selfd     64      37     530        4659       0     254      36288        0
                64     64      11     556          25       0     254      36288        0
                64     64     235     332       12950       0     254      36288        0
                64     64     158     409         914       0     254      36288        0
                64     64      15     552          52       0     254      36288        0
                64     64      28     539          31       0     254      36288        0
               128    128      32     247          98       0     126      35712        0
               128    128      40     239        5679       0     126      35712        0
               128    128      80     199         708       0     126      35712        0
     routing nhops    256       8     127          18       0      62      34560        0
               256    256      61      74         339       0      62      34560        0
               256    256      15     120          54       0      62      34560        0
               256    256      17     118          56       0      62      34560        0
               256    256      89      46         442       0      62      34560        0
               256    256      10     125        1755       0      62      34560        0
             32768  32768       1       0           1       0       1      32768        0
             32768  32768       0       1         112       0       1      32768        0
             16384  16384       1       1         129       0       1      32768        0
              4096   4096       4       4         453       0       2      32768        0
              2048   2048       7       9           7       0       8      32768        0
              2048   2048       2      14           2       0       8      32768        0
              2048   2048       1      15         448       0       8      32768        0
              1024   1024       1      31         858       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          19       0      16      32768        0
               512    512      13      51          13       0      30      32768        0
               512    512       9      55           9       0      30      32768        0
     mt_stats_zone     64     439      73         439       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
                32     32     297     585         404       0     254      28224        0
          4 Bucket     48       5     583        1981       0     254      28224        0
           rtentry    200      14     126          18       0      62      28000        0
        KMAP ENTRY     96      12     279          12       0     126      27936        0
         TURNSTILE    136     118      71         118       0      62      25704        0
              8192   8192       3       0           3       0       1      24576        0
              8192   8192       2       1           4       0       1      24576        0
              8192   8192       3       0           3       0       1      24576        0
              4096   4096       4       2           6       0       2      24576        0
              4096   4096       3       3         198       0       2      24576        0
          rl_entry     40      28     578          28       0     254      24240        0
          2 Bucket     32      55     701       20359       0     254      24192        0
             Files     80      70     230        6303       0     126      24000        0
          8 Bucket     80      55     245        5942       0     126      24000        0
        SLEEPQUEUE     88     118     138         118       0     126      22528        0
             udpcb     32       2     628         118       0     254      20160        0
               PWD     32      10     620          98       0     254      20160        0
                32     32      98     532         137       0     254      20160        0
                32     32      26     604         808       0     254      20160        0
                32     32      64     566         955       0     254      20160        0
                32     32      22     608         164       0     254      20160        0
                32     32      41     589        2646       0     254      20160        0
         16 Bucket    144      39     101         147       0      62      20160        0
             KNOTE    160       0     125           7       0      62      20000        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       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
              2048   2048       1       7          13       0       8      16384        0
              2048   2048       7       1           7       0       8      16384        0
              2048   2048       1       7           1       0       8      16384        0
              1024   1024       2      14          31       0      16      16384        0
              1024   1024       2      14           2       0      16      16384        0
               512    512       1      31           1       0      30      16384        0
               512    512       2      30          21       0      30      16384        0
      vtnet_tx_hdr     24       0     668        1053       0     254      16032        0
           mt_zone     24     439     229         439       0     254      16032        0
               MAP    216       2      69           2       0      62      15336        0
              vmem   1856       1       7           1       0       8      14848        0
                32     32       3     375          22       0     254      12096        0
                16     16      11     739          42       0     254      12000        0
                16     16      31     719         231       0     254      12000        0
                16     16      31     719         446       0     254      12000        0
                16     16     193     557        1245       0     254      12000        0
                16     16      10     740          11       0     254      12000        0
                16     16     242     508         243       0     254      12000        0
                16     16      15     735       23924       0     254      12000        0
       Mountpoints   2816       2       2           2       0       4      11264        0
              4096   4096       0       2           1       0       2       8192        0
              4096   4096       0       2           3       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       8      14           8       0      62       3872        0
          int pcpu      4      18     494          18       0     254       2048        0
       FFS1 dinode    128       0       0           0       0     126          0        0
             swblk    136       0       0           0       0      62          0        0
          swpctrie    144       0       0           0       0      62          0        0
   pf state scrubs     40       0       0           0       0     254          0        0
   pf frag entries     40       0       0           0       0     254          0        0
          pf frags    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    408       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    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 (115):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2020/05/22 18:43 freebsd 59fb2cca731a 9682898d console log report syz C ci-freebsd-main
2020/05/22 04:10 freebsd 46c2358a6391 5afa2ddd console log report syz C ci-freebsd-main
2020/02/03 19:24 freebsd f8e2d90c739a 93e5e335 console log report syz ci-freebsd-main
2020/02/03 16:27 freebsd f8e2d90c739a 93e5e335 console log report syz ci-freebsd-main
2020/01/19 05:54 freebsd 26e153a7bbcc bc8bc756 console log report syz ci-freebsd-main
2020/01/17 18:36 freebsd 800a376698b8 3de7aabb console log report syz ci-freebsd-main
2019/06/09 21:35 freebsd af823c22958c 0159583c console log report syz ci-freebsd-main
2019/06/05 02:45 freebsd 54eb1c14c26e bfb4a51e console log report syz ci-freebsd-main
2019/05/05 16:55 freebsd 0d62ce242897 d28f4ce5 console log report syz ci-freebsd-main
2019/05/01 13:43 freebsd c2d2307dd816 618456b4 console log report syz ci-freebsd-main
2020/02/03 18:42 freebsd 5652acaf962d 93e5e335 console log report syz ci-freebsd-i386
2020/01/18 01:38 freebsd 800a376698b8 3de7aabb console log report syz ci-freebsd-i386
2021/06/18 04:27 freebsd-src 6a836ea741c7 aba2b2fb console log report ci-freebsd-main Fatal trap 12: page fault in _sx_xlock_hard
2021/06/12 11:09 freebsd-src e7424879e3f6 1ba81399 console log report ci-freebsd-main Fatal trap 12: page fault in _sx_xlock_hard
2021/06/02 18:25 freebsd-src 8cd05b883330 0740de69 console log report ci-freebsd-main Fatal trap 12: page fault in _sx_xlock_hard
2021/05/25 11:28 freebsd-src fbf75b113edc 3c7fef33 console log report ci-freebsd-main Fatal trap 12: page fault in _sx_xlock_hard
2021/05/21 01:47 freebsd-src d7751071bc41 3c7fef33 console log report ci-freebsd-main Fatal trap 12: page fault in _sx_xlock_hard
2021/05/01 14:58 freebsd-src a6ca7519f89c 77e2b668 console log report ci-freebsd-main Fatal trap 12: page fault in _sx_xlock_hard
2021/04/13 14:17 freebsd-src 1f64f32a4cc5 bfeda1b1 console log report ci-freebsd-main Fatal trap 12: page fault in _sx_xlock_hard
2021/04/12 04:06 freebsd-src d647d0d4f78f bfeda1b1 console log report ci-freebsd-main Fatal trap 12: page fault in _sx_xlock_hard
2021/03/29 16:49 freebsd-src cb0dd7e122b8 a8529b82 console log report ci-freebsd-main Fatal trap 12: page fault in _sx_xlock_hard
2021/03/23 23:56 freebsd-src 63f344024a0d e613994b console log report ci-freebsd-main Fatal trap 12: page fault in _sx_xlock_hard
2021/02/26 22:54 freebsd-src 1fc928770b5d 4c37c133 console log report ci-freebsd-main Fatal trap 12: page fault in _sx_xlock_hard
2021/02/25 19:16 freebsd-src b6a51d39e3a2 76f7fc95 console log report ci-freebsd-main Fatal trap 12: page fault in _sx_xlock_hard
2021/02/15 20:36 freebsd-src 5dce03847fdc 98682e5e console log report ci-freebsd-main Fatal trap 12: page fault in _sx_xlock_hard
2021/02/14 14:27 freebsd-src 25c6318c7906 98682e5e console log report ci-freebsd-main Fatal trap 12: page fault in _sx_xlock_hard
2021/02/11 07:11 freebsd-src a6dc68c0e0f8 a52ee10a console log report ci-freebsd-main Fatal trap 12: page fault in _sx_xlock_hard
2021/02/03 11:16 freebsd-src 805e2876ec20 624dad51 console log report ci-freebsd-main Fatal trap 12: page fault in _sx_xlock_hard
2021/01/27 09:11 freebsd-src cfd6422a5217 a0ebf917 console log report ci-freebsd-main Fatal trap 12: page fault in _sx_xlock_hard
2021/01/25 08:32 freebsd-src 8c5bef2eb24c 52e37319 console log report ci-freebsd-main Fatal trap 12: page fault in _sx_xlock_hard
2021/05/30 23:23 freebsd-src 284cf3f18b53 325a8dab console log report ci-freebsd-i386 Fatal trap 12: page fault in _sx_xlock_hard
2021/01/31 19:10 freebsd-src e027e24bfac7 fc9fd31e console log report ci-freebsd-i386 Fatal trap 12: page fault in _sx_xlock_hard
2020/12/15 00:05 freebsd 049df6297504 b22a7ec3 console log report ci-freebsd-main
2020/12/10 19:26 freebsd def1f148d5b4 2a55c22b console log report ci-freebsd-main
2020/12/04 01:49 freebsd c2fd06243ecd 643fdf46 console log report ci-freebsd-main
2020/12/01 16:43 freebsd c9aa461816bb 07bfe8a5 console log report ci-freebsd-main
2020/11/17 04:02 freebsd b7923586ef45 1bf9a662 console log report ci-freebsd-main
2020/11/08 02:23 freebsd 258a45da7fc5 64069d48 console log report ci-freebsd-main
2020/11/04 15:50 freebsd 740a82fa8a3c cba33199 console log report ci-freebsd-main
2020/11/04 03:04 freebsd a8b9895872b1 cba33199 console log report ci-freebsd-main
2020/10/21 14:50 freebsd f1f45fa8c200 99c64d5c console log report ci-freebsd-main
2020/10/17 03:54 freebsd 63aefd8dd14d 6e262c73 console log report ci-freebsd-main
2020/10/16 08:24 freebsd 9cd6dd60d6e0 6e262c73 console log report ci-freebsd-main
2020/10/12 11:48 freebsd f943202c1911 4a77ae0b console log report ci-freebsd-main
2020/10/11 19:39 freebsd 4d382a75c271 4a77ae0b console log report ci-freebsd-main
2019/05/01 13:08 freebsd c2d2307dd816 618456b4 console log report ci-freebsd-main
2021/01/02 11:10 freebsd de1aa3dab23c 79264ae3 console log report ci-freebsd-i386
2020/12/29 20:56 freebsd 9e4440ca5ba7 80910769 console log report ci-freebsd-i386
2020/12/26 12:33 freebsd 9e4440ca5ba7 821e0b09 console log report ci-freebsd-i386
2020/12/04 07:23 freebsd 7bb279d52a02 9e0b299f console log report ci-freebsd-i386
2020/12/03 00:44 freebsd 12b36b24a8a7 8c9190ef console log report ci-freebsd-i386
2020/11/23 11:21 freebsd 327654569258 0d27f508 console log report ci-freebsd-i386
2020/11/22 01:00 freebsd 89258e06fde6 2f4d85f4 console log report ci-freebsd-i386
2020/11/13 06:26 freebsd c6e5f27ea613 16fca0c8 console log report ci-freebsd-i386
2020/10/31 02:48 freebsd 75e5305e4cb1 bde4231c console log report ci-freebsd-i386
2020/10/21 20:07 freebsd f1f45fa8c200 99c64d5c console log report ci-freebsd-i386
2020/10/05 10:42 freebsd 33583454c2ad 5ef9c291 console log report ci-freebsd-i386
2021/01/13 18:02 freebsd-src f6d95a01103a a945f0a3 console log report ci-freebsd-main
2021/01/10 10:08 freebsd-src 1d238b07d5d4 2c1f2513 console log report ci-freebsd-main
2021/01/09 20:25 freebsd-src e83fdf8bb391 a6c52263 console log report ci-freebsd-main
2021/01/07 14:00 freebsd-src b500c184b656 c104d4a3 console log report ci-freebsd-main
* Struck through repros no longer work on HEAD.