syzbot


Fatal trap 12: page fault in __mtx_assert (4)

Status: auto-closed as invalid on 2021/05/17 14:41
Reported-by: syzbot+0e07f826c1ee82056446@syzkaller.appspotmail.com
First crash: 1228d, last: 1214d
Similar bugs (4)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
freebsd Fatal trap 12: page fault in __mtx_assert (3) 3 1323d 1357d 0/2 auto-closed as invalid on 2021/01/28 09:02
freebsd Fatal trap 12: page fault in __mtx_assert (5) 7 1082d 1116d 0/2 auto-closed as invalid on 2021/09/26 00:34
freebsd Fatal trap 12: page fault in __mtx_assert syz 4 1908d 1910d 1/2 fixed on 2019/03/26 17:44
freebsd Fatal trap 12: page fault in __mtx_assert (2) 1 1857d 1857d 0/2 auto-closed as invalid on 2019/10/25 08:47

Sample crash report:
Fatal trap 12: page fault while in kernel mode
cpuid = 1; apic id = 01
fault virtual address	= 0x160
fault code		= supervisor read data, page not present
instruction pointer	= 0x20:0xffffffff81077702
stack pointer	        = 0x28:0xfffffe00037794a0
frame pointer	        = 0x28:0xfffffe00037794d0
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		= 12 (swi1: netisr 0)
trap number		= 12
panic: page fault
cpuid = 1
time = 1613486423
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x47/frame 0xfffffe0003779100
vpanic() at vpanic+0x1c7/frame 0xfffffe0003779160
panic() at panic+0x43/frame 0xfffffe00037791c0
trap_fatal() at trap_fatal+0x4cd/frame 0xfffffe0003779240
trap_pfault() at trap_pfault+0xd4/frame 0xfffffe00037792b0
trap() at trap+0x41d/frame 0xfffffe00037793d0
calltrap() at calltrap+0x8/frame 0xfffffe00037793d0
--- trap 0xc, rip = 0xffffffff81077702, rsp = 0xfffffe00037794a0, rbp = 0xfffffe00037794d0 ---
__mtx_assert() at __mtx_assert+0xc2/frame 0xfffffe00037794d0
sctp_add_to_readq() at sctp_add_to_readq+0x4dc/frame 0xfffffe0003779530
sctp_deliver_reasm_check() at sctp_deliver_reasm_check+0x13d3/frame 0xfffffe00037795d0
sctp_process_data() at sctp_process_data+0x3a95/frame 0xfffffe00037797a0
sctp_common_input_processing() at sctp_common_input_processing+0xfd8/frame 0xfffffe00037798e0
sctp_input_with_port() at sctp_input_with_port+0x306/frame 0xfffffe00037799d0
sctp_input() at sctp_input+0x1f/frame 0xfffffe00037799f0
ip_input() at ip_input+0x388/frame 0xfffffe0003779a90
swi_net() at swi_net+0x20d/frame 0xfffffe0003779b10
ithread_loop() at ithread_loop+0x33f/frame 0xfffffe0003779bb0
fork_exit() at fork_exit+0xb3/frame 0xfffffe0003779bf0
fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe0003779bf0
--- trap 0, rip = 0, rsp = 0, rbp = 0 ---
KDB: enter: panic
[ thread pid 12 tid 100032 ]
Stopped at      kdb_enter+0x67: movq    $0,0x14448ee(%rip)
db> set $lines = 0
db> set $maxwidth = 0
db> show registers
cs                        0x20
ds                        0x3b
es                        0x3b
fs                        0x13
gs                        0x1b
ss                        0x28
rax                       0x12
rcx         0xffffffff8112ae80  vprintf+0x140
rdx                        0x1
rbx                          0
rsp         0xfffffe00037790e0
rbp         0xfffffe0003779100
rsi                          0
rdi         0xffffffff8112aeb6  vprintf+0x176
r8                           0
r9                  0xffffffff
r10                          0
r11                       0xbf
r12         0xffffffff820678b0  ddb_dbbe
r13                          0
r14         0xffffffff81a4adf6
r15         0xffffffff81a4adf6
rip         0xffffffff81121e97  kdb_enter+0x67
rflags                    0x82
kdb_enter+0x67: movq    $0,0x14448ee(%rip)
db> show proc
Process 12 (intr) at 0xfffff800044b1a50:
 state: NORMAL
 uid: 0  gids: 0
 parent: pid 0 at 0xffffffff82519cf0
 ABI: null
 flag: 0x10000284  flag2: 0
 reaper: 0xffffffff82519cf0 reapsubtree: 12
 sigparent: 20
 vmspace: 0xffffffff8251a940
   (map 0xffffffff8251a940)
   (map.pmap 0xffffffff8251aa00)
   (pmap 0xffffffff8251aa60)
 threads: 23
100010                   I                                   [swi6: Giant taskq]
100015                   I                                   [swi5: fast taskq]
100017                   I                                   [swi6: task queue]
100029                   I                                   [swi4: clock (0)]
100030                   I                                   [swi4: clock (1)]
100031                   I                                   [swi3: vm]
100032                   Run     CPU 1                       [swi1: netisr 0]
100044                   I                                   [irq24: virtio_pci0]
100045                   I                                   [irq25: virtio_pci0]
100046                   I                                   [irq26: virtio_pci0]
100047                   I                                   [irq27: virtio_pci0]
100048                   I                                   [irq28: virtio_pci1]
100049                   I                                   [irq29: virtio_pci1]
100050                   I                                   [irq30: virtio_pci1]
100051                   I                                   [irq31: virtio_pci1]
100052                   I                                   [irq32: virtio_pci1]
100057                   I                                   [irq10: virtio_pci2]
100059                   I                                   [irq1: atkbd0]
100060                   I                                   [irq12: psm0]
100061                   I                                   [swi0: uart uart++]
100069                   I                                   [swi1: pf send]
100082                   I                                   [swi1: hpts]
100083                   I                                   [swi1: hpts]
db> ps
  pid  ppid  pgrp   uid  state   wmesg   wchan               cmd
32053   786   786     0  R       (threaded)                  syz-executor.1
135578                   RunQ                                syz-executor.1
147274                   L      *sctp-in 0xfffff80056183d80  syz-executor.1
147276                   S       accept  0xfffff80019faa8b8  syz-executor.1
147277                   S       uwait   0xfffff80004d47380  syz-executor.1
32052   785   785     0  LE     *sctp-tc 0xfffff800194ee600  syz-executor.0
32051   787   787     0  R       (threaded)                  syz-executor.2
130399                   RunQ                                syz-executor.2
147275                   L      *sctp-in 0xfffff80056183d80  syz-executor.2
147278                   L      *sctp-in 0xfffff80056183d80  syz-executor.2
147279                   S       uwait   0xfffff800193d2880  syz-executor.2
32048   817   817     0  LE     *sctp-in 0xfffff80056183d80  syz-executor.3
 2285     1  2285    65  Ss      select  0xfffff800192d5740  dhclient
 1993     1  1993     0  Ss      select  0xfffff80004e38940  dhclient
 1990     1  1990     0  Ss      select  0xfffff800192d56c0  dhclient
 1971     1  1971    65  Ss      select  0xfffff800192d58c0  dhclient
 1620     1  1620     0  Ss      select  0xfffff80004ee72c0  dhclient
 1617     1  1617     0  Ss      select  0xfffff80004ee7240  dhclient
 1594     1  1594    65  Ss      select  0xfffff800192d59c0  dhclient
 1240     1  1240     0  Ss      select  0xfffff800192d57c0  dhclient
 1236     1  1236     0  Ss      select  0xfffff80004b2a840  dhclient
 1215     1  1215    65  Ss      select  0xfffff80004b2a6c0  dhclient
  822     1   822     0  Ss      select  0xfffff800192d5a40  dhclient
  819     1   819     0  Ss      select  0xfffff800192d5ac0  dhclient
  817   780   817     0  Rs                                  syz-executor.3
  787   780   787     0  Rs                                  syz-executor.2
  786   780   786     0  Rs                                  syz-executor.1
  785   780   785     0  Rs                                  syz-executor.0
  780   778   778     0  S       (threaded)                  syz-fuzzer
100105                   S       uwait   0xfffff80004e6a300  syz-fuzzer
100115                   S       uwait   0xfffff800193a1a80  syz-fuzzer
100116                   S       uwait   0xfffff800193a1b80  syz-fuzzer
100117                   S       kqread  0xfffff80004edc000  syz-fuzzer
100118                   S       uwait   0xfffff80004d47280  syz-fuzzer
100119                   S       uwait   0xfffff800193a1d80  syz-fuzzer
100120                   S       uwait   0xfffff800193a1e80  syz-fuzzer
100121                   S       uwait   0xfffff800193a1680  syz-fuzzer
110726                   S       uwait   0xfffff80019d2dd80  syz-fuzzer
143377                   S       uwait   0xfffff800193a1200  syz-fuzzer
  778   776   778     0  Ss      pause   0xfffff800193fd0b0  csh
  776   694   776     0  Ss      select  0xfffff800192d5940  sshd
  760     1   760     0  Rs+     CPU 0                       getty
  759     1   759     0  Ss+     ttyin   0xfffff80004baecb0  getty
  758     1   758     0  Ss+     ttyin   0xfffff80004bb24b0  getty
  757     1   757     0  Ss+     ttyin   0xfffff80004bb2cb0  getty
  756     1   756     0  Ss+     ttyin   0xfffff80004bb64b0  getty
  755     1   755     0  Ss+     ttyin   0xfffff80004bb6cb0  getty
  754     1   754     0  Ss+     ttyin   0xfffff80004bbb4b0  getty
  753     1   753     0  Ss+     ttyin   0xfffff80004bbbcb0  getty
  752     1   752     0  Ss+     ttyin   0xfffff80004b464b0  getty
  698     1   698     0  Ss      nanslp  0xffffffff82539f20  cron
  694     1   694     0  Ss      select  0xfffff800192d5b40  sshd
  507     1   507     0  Ds      bo_wwai 0xfffff800193b1528  syslogd
  436     1   436     0  Ss      select  0xfffff800192d5cc0  devd
  435     1   435    65  Ss      select  0xfffff80004ee73c0  dhclient
  350     1   350     0  Ss      select  0xfffff80004ee7440  dhclient
  347     1   347     0  Ss      select  0xfffff800192d5bc0  dhclient
   23     0     0     0  DL      vlruwt  0xfffff80004b92000  [vnlru]
   22     0     0     0  DL      syncer  0xffffffff82629338  [syncer]
   21     0     0     0  DL      (threaded)                  [bufdaemon]
100079                   D       qsleep  0xffffffff82628400  [bufdaemon]
100084                   D       -       0xffffffff8200ad00  [bufspacedaemon-0]
100096                   D       sdflush 0xfffff80004dd78e8  [/ worker]
   20     0     0     0  DL      psleep  0xffffffff82650208  [vmdaemon]
   19     0     0     0  DL      (threaded)                  [pagedaemon]
100077                   D       psleep  0xffffffff82644678  [dom0]
100085                   D       launds  0xffffffff82644684  [laundry: dom0]
100086                   D       umarcl  0xffffffff815a9bf0  [uma]
   18     0     0     0  DL      -       0xffffffff8236e2a8  [rand_harvestq]
   17     0     0     0  DL      waiting 0xffffffff82d3e818  [sctp_iterator]
   16     0     0     0  DL      pftm    0xffffffff82bb6430  [pf purge]
   15     0     0     0  DL      -       0xffffffff82625a5c  [soaiod4]
    9     0     0     0  DL      -       0xffffffff82625a5c  [soaiod3]
    8     0     0     0  DL      -       0xffffffff82625a5c  [soaiod2]
    7     0     0     0  DL      -       0xffffffff82625a5c  [soaiod1]
    6     0     0     0  DL      (threaded)                  [cam]
100043                   D       -       0xffffffff82245bc0  [doneq0]
100076                   D       -       0xffffffff82245a90  [scanner]
   14     0     0     0  DL      seqstat 0xfffff80004614488  [sequencer 00]
    5     0     0     0  DL      crypto_ 0xfffff80004342490  [crypto returns 1]
    4     0     0     0  DL      crypto_ 0xfffff80004342430  [crypto returns 0]
    3     0     0     0  DL      crypto_ 0xffffffff82641b60  [crypto]
   13     0     0     0  DL      (threaded)                  [geom]
100034                   D       -       0xffffffff82519760  [g_event]
100035                   D       -       0xffffffff82519768  [g_up]
100036                   D       -       0xffffffff82519770  [g_down]
    2     0     0     0  DL      (threaded)                  [KTLS]
100027                   D       -       0xfffff80004342700  [thr_0]
100028                   D       -       0xfffff80004342780  [thr_1]
   12     0     0     0  RL      (threaded)                  [intr]
100010                   I                                   [swi6: Giant taskq]
100015                   I                                   [swi5: fast taskq]
100017                   I                                   [swi6: task queue]
100029                   I                                   [swi4: clock (0)]
100030                   I                                   [swi4: clock (1)]
100031                   I                                   [swi3: vm]
100032                   Run     CPU 1                       [swi1: netisr 0]
100044                   I                                   [irq24: virtio_pci0]
100045                   I                                   [irq25: virtio_pci0]
100046                   I                                   [irq26: virtio_pci0]
100047                   I                                   [irq27: virtio_pci0]
100048                   I                                   [irq28: virtio_pci1]
100049                   I                                   [irq29: virtio_pci1]
100050                   I                                   [irq30: virtio_pci1]
100051                   I                                   [irq31: virtio_pci1]
100052                   I                                   [irq32: virtio_pci1]
100057                   I                                   [irq10: virtio_pci2]
100059                   I                                   [irq1: atkbd0]
100060                   I                                   [irq12: psm0]
100061                   I                                   [swi0: uart uart++]
100069                   I                                   [swi1: pf send]
100082                   I                                   [swi1: hpts]
100083                   I                                   [swi1: hpts]
   11     0     0     0  RL      (threaded)                  [idle]
100003                   CanRun                              [idle: cpu0]
100004                   CanRun                              [idle: cpu1]
    1     0     1     0  SLs     wait    0xfffff80004457528  [init]
   10     0     0     0  DL      audit_w 0xffffffff82642080  [audit]
    0     0     0     0  DLs     (threaded)                  [kernel]
100000                   D       swapin  0xffffffff82519cf0  [swapper]
100005                   D       -       0xfffff80004342c00  [if_io_tqg_0]
100006                   D       -       0xfffff80004342b00  [if_io_tqg_1]
100007                   D       -       0xfffff80004342a00  [if_config_tqg_0]
100008                   D       -       0xfffff80004342900  [softirq_0]
100009                   D       -       0xfffff80004342800  [softirq_1]
100011                   D       -       0xfffff8000408c800  [inm_free taskq]
100012                   D       -       0xfffff8000408c700  [linuxkpi_irq_wq]
100013                   D       -       0xfffff8000408c600  [thread taskq]
100014                   D       -       0xfffff8000408c500  [aiod_kick taskq]
100016                   D       -       0xfffff8000408c300  [kqueue_ctx taskq]
100018                   D       -       0xfffff8000408c100  [in6m_free taskq]
100019                   D       -       0xfffff8000408c000  [linuxkpi_short_wq_0]
100020                   D       -       0xfffff8000408c000  [linuxkpi_short_wq_1]
100021                   D       -       0xfffff8000408c000  [linuxkpi_short_wq_2]
100022                   D       -       0xfffff8000408c000  [linuxkpi_short_wq_3]
100023                   D       -       0xfffff800044ace00  [linuxkpi_long_wq_0]
100024                   D       -       0xfffff800044ace00  [linuxkpi_long_wq_1]
100025                   D       -       0xfffff800044ace00  [linuxkpi_long_wq_2]
100026                   D       -       0xfffff800044ace00  [linuxkpi_long_wq_3]
100033                   D       -       0xfffff800044acd00  [firmware taskq]
100037                   D       -       0xfffff800044acc00  [crypto_0]
100038                   D       -       0xfffff800044acc00  [crypto_1]
100053                   D       -       0xfffff800044ac700  [vtnet0 rxq 0]
100054                   D       -       0xfffff800044ac600  [vtnet0 txq 0]
100055                   D       -       0xfffff800044ac500  [vtnet0 rxq 1]
100056                   D       -       0xfffff800044ac400  [vtnet0 txq 1]
100058                   D       vtbslp  0xfffff80004868e80  [virtio_balloon]
100062                   D       -       0xfffff800044ac300  [mca taskq]
100067                   D       -       0xffffffff81df5e00  [deadlkres]
100071                   D       -       0xfffff800044f3d00  [acpi_task_0]
100072                   D       -       0xfffff800044f3d00  [acpi_task_1]
100073                   D       -       0xfffff800044f3d00  [acpi_task_2]
100075                   D       -       0xfffff800044aca00  [CAM taskq]
db> show all locks
Process 32052 (syz-executor.0) thread 0xfffffe0094c79700 (141154)
exclusive sleep mutex sctp-inp (inp) r = 0 (0xfffff80056d97e68) locked @ /syzkaller/managers/main/kernel/sys/netinet/sctp_pcb.c:3333
exclusive rw sctp-info (sctp-info) r = 0 (0xfffffe000419d1f0) locked @ /syzkaller/managers/main/kernel/sys/netinet/sctp_pcb.c:3331
exclusive sleep mutex sctp-create (inp_create) r = 0 (0xfffff80056d97e88) locked @ /syzkaller/managers/main/kernel/sys/netinet/sctp_pcb.c:3330
Process 32048 (syz-executor.3) thread 0xfffffe0094c7d000 (124483)
exclusive sleep mutex sctp-create (inp_create) r = 0 (0xfffff80056e5b488) locked @ /syzkaller/managers/main/kernel/sys/netinet/sctp_pcb.c:3330
Process 760 (getty) thread 0xfffffe0094bdc800 (100111)
exclusive sleep mutex ttymtx (ttymtx) r = 0 (0xfffff8000485e408) locked @ /syzkaller/managers/main/kernel/sys/kern/tty_ttydisc.c:489
Process 507 (syslogd) thread 0xfffffe00557faa00 (100098)
exclusive lockmgr ufs (ufs) r = 0 (0xfffff800193b1430) locked @ /syzkaller/managers/main/kernel/sys/kern/vfs_syscalls.c:3496
Process 12 (intr) thread 0xfffffe000410c500 (100032)
exclusive sleep mutex so_rcv (so_rcv) r = 0 (0xfffff800567b44f8) locked @ /syzkaller/managers/main/kernel/sys/netinet/sctputil.c:4811
exclusive sleep mutex sctp-tcb (tcb) r = 0 (0xfffffe0094e5bc70) locked @ /syzkaller/managers/main/kernel/sys/netinet/sctp_pcb.c:2143
db> show malloc
              Type        InUse        MemUse     Requests
           pf_hash            5        11524K            5
            devbuf         4216         4340K         4244
          tcp_hpts            5         3201K            5
             vtbuf           24         1968K           46
         sysctloid        30827         1808K        30893
              kobj          331         1324K          491
           pf_rule         1178         1178K         3213
            newblk            9         1026K        33841
          vfscache            3         1025K            3
               pcb          207          714K       115286
          inodedep          447          680K        35767
         ufs_quota            1          512K            1
          vfs_hash            1          512K            1
           callout            2          512K            2
              intr            4          472K            4
           subproc          142          282K        32137
            acpica         1674          184K        55181
         vnet_data            1          168K            1
           tidhash            3          141K            3
          filedesc           18          137K        62057
           pagedep            9          130K        33667
        tfo_ccache            1          128K            1
            dirrem          438          110K        31085
            DEVFS1          106          106K          123
               sem            4          106K            4
            linker          285          101K          320
               BPF           46           88K           46
               bus          989           81K         3493
         sctp_stro           79           79K        32719
          mtx_pool            2           72K            2
          syncache            1           68K            1
          acpitask            1           64K            1
       ddb_capture            1           64K            1
         sctp_timw          254           64K          254
            module          505           64K          505
         sctp_atcl          168           63K        99038
          pf_table           29           58K          532
          freefile          438           55K        31071
              umtx          360           45K          360
           kdtrace          221           44K        79334
              temp           39           41K         8231
          routetbl          140           40K         2152
         hostcache            1           32K            1
               shm            1           32K           19
            DEVFS3          125           32K          135
               msg            4           30K            4
              vmem            3           26K            4
        gtaskqueue           18           26K           18
            kbdmux            6           22K            6
            ifaddr           70           20K           72
        DEVFS_RULE           56           20K           56
         ufs_mount            5           17K            6
              proc            3           17K            3
               tty           16           16K           16
           ithread           99           16K           99
            bus-sc           32           14K         1718
           lltable           43           14K          222
            KTRACE          100           13K          100
             ifnet            7           13K            7
       ether_multi          152           13K          162
              kenv           93           12K           93
      eventhandler          133           12K          133
         sctp_atky          246           11K       132061
              GEOM           60           10K          489
              rman           82           10K          423
              ksem            4           10K         3581
         in6_multi           65            9K           65
         bmsafemap            2            9K        32965
              UART           12            9K           12
           devstat            4            9K            4
               rpc            2            8K            2
             shmfd            1            8K           44
       pfs_vncache            1            8K            1
         pfs_nodes           20            8K           20
     audit_evclass          236            8K          294
              cred           25            7K          502
            kqueue           65            7K        32166
            sglist            5            7K            5
           CAM DEV            3            6K          510
            plimit           24            6K         3224
         taskqueue           57            6K           57
         CAM queue            5            6K         1528
         sctp_stri           10            5K        10368
            DEVFSP           78            5K           82
       ufs_dirhash           24            5K           24
          pf_ifnet           12            5K          285
           session           35            5K           62
               UMA          262            5K          262
                vt           11            5K           11
           memdesc            1            4K            1
               MCA           32            4K           32
             evdev            4            4K            4
          kcovinfo           64            4K           68
           pwddesc           61            4K        32054
             lockf           32            4K          168
             hhook           13            4K           13
             selfd           50            4K       438270
       fpukern_ctx            3            3K            3
         proc-args           52            3K          796
           acpisem           22            3K           22
          terminal           11            3K           11
         sctp_athm          168            3K       100862
          sctp_map          158            3K        63890
            select           19            3K          158
           uidinfo            3            3K           63
        local_apic            1            2K            1
           io_apic            1            2K            1
         ipsec-saq            2            2K            2
           CAM CCB            1            2K       307519
            ip6ndp           12            2K           13
            Unitno           29            2K           63
          sctp_ifa           13            2K           14
           CAM XPT           22            2K          543
          in_multi            6            2K            8
       ipsecpolicy            2            2K            2
           acpidev           20            2K           20
               msi            9            2K            9
          freework            5            2K        31106
             clone            9            2K            9
               tun            7            2K            7
       inpcbpolicy           34            2K         8213
           softdep            1            1K            1
             mkdir            8            1K        62052
          freeblks            4            1K        31045
            sahead            1            1K            1
          secasvar            1            1K            1
             nhops            6            1K            8
       vnodemarker            2            1K        15126
      NFSD session            1            1K            1
        CAM periph            4            1K          271
          sctp_ifn            6            1K           14
             ipsec            3            1K            3
               mld            6            1K            6
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            diradd            4            1K        31130
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             linux            5            1K            6
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          filecaps            5            1K          122
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          p1003.1b            1            1K            1
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ag_tgt_map_t malloc            0            0K            0
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lDevFlags * malloc            0            0K            0
          mbuf_tag            0            0K          216
tiDeviceHandle_t * malloc            0            0K            0
ag_portal_data_t malloc            0            0K            0
ag_device_t malloc            0            0K            0
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db> show uma
              Zone   Size    Used    Free    Requests  Sleeps  Bucket  Total Mem    XFree
   mbuf_jumbo_page   4096    8361    1563     1773240       0     254   40648704        0
        RADIX NODE    144   22264     609     1962106       0      63    3293712        0
              mbuf    256    8955    2970    14918777       0     254    3052800        0
              pbuf   2624       0     941           0       0       2    2469184        0
           tcp_log    416       0    5481       85268       0     254    2280096        0
          BUF TRIE    144     354   13114      244758       0      62    1939392        0
         sctp_asoc   2288      78     657       31945       0     254    1681680        0
        malloc-384    384    4130      10        4167       0      30    1589760        0
      mbuf_cluster   2048     765       1         765       0     254    1568768        0
       malloc-2048   2048      80     658       56336       0       8    1511424        0
       malloc-4096   4096     334       5       31760       0       2    1388544        0
       UMA Slabs 0    112   12215      22       12215       0     126    1370544        0
        malloc-128    128   10224      99       18061       0     126    1321344        0
       malloc-1024   1024    1187       5        3067       0      16    1220608        0
           sctp_ep   1280      80     772       56078       0     254    1090560        0
       malloc-1024   1024      83     657       32347       0      16     757760        0
      malloc-65536  65536       6       5         794       0       1     720896        0
        malloc-256    256     615    2160       94787       0      62     710400        0
         FFS inode   1128     522      24       31597       0       8     615888        0
        malloc-384    384     221    1319       99091       0      30     591360        0
        sctp_raddr    736     128     620       62479       0     254     550528        0
            socket    944      68     500       66183       0     254     536192        0
        malloc-384    384     505     835       36831       0      30     514560        0
        256 Bucket   2048     200      18       22007       0       8     446464        0
       tcp_bbr_map    128       0    3193       86978       0     126     408704        0
       malloc-4096   4096      85       7       32677       0       2     376832        0
         VM OBJECT    264    1347      78      471053       0      30     376200        0
      malloc-65536  65536       0       5         115       0       1     327680        0
            THREAD   1792     157      23       47279       0       8     322560        0
             VNODE    480     559      89       31636       0      30     311040        0
       malloc-2048   2048       8     132      307557       0       8     286720        0
      malloc-16384  16384      12       4       31036       0       1     262144        0
         malloc-64     64    3334     698       77817       0     254     258048        0
             g_bio    408       4     566      823699       0      32     232560        0
         malloc-16     16   12964    1536      143688       0     254     232000        0
            DEVCTL   1024       0     216         130       0       0     221184        0
         malloc-32     32    5306    1372      124889       0     254     213696        0
        malloc-256    256     114     696       59585       0      62     207360        0
         MAP ENTRY     96    1691     367     1763628       0     126     197568        0
       mbuf_packet    256     139     626       85970       0     254     195840        0
         UMA Zones    768     234       0         234       0      16     179712        0
        malloc-128    128     470     863       62383       0     126     170624        0
            clpbuf   2624       0      64       37297       0      16     167936        0
       FFS2 dinode    256     522     123       31595       0      62     165120        0
      malloc-32768  32768       0       5         194       0       1     163840        0
        malloc-128    128    1182      58       28865       0     126     158720        0
        malloc-256    256      20     595       34015       0      62     157440        0
       S VFS Cache    104    1069     374       33053       0     126     150072        0
       malloc-1024   1024     136       8        3978       0      16     147456        0
         tcp_inpcb    488      27     261        3254       0     254     140544        0
         vmem btag     56    2383      53        2383       0     254     136416        0
        sctp_chunk    152      95     789       44008       0     254     134368        0
        128 Bucket   1024      96      35       18198       0      16     134144        0
      malloc-65536  65536       0       2          68       0       1     131072        0
      malloc-65536  65536       0       2         136       0       1     131072        0
      malloc-65536  65536       2       0           2       0       1     131072        0
      malloc-65536  65536       1       1           9       0       1     131072        0
            pcpu-8      8   14443    1941       39145       0     254     131072        0
        malloc-128    128    1006      17        1161       0     126     130944        0
           VMSPACE   2544      40      11       32032       0       4     129744        0
          ksiginfo    112      63     981        4136       0     126     116928        0
             tcpcb   1048      27      72        3254       0     254     103752        0
              PROC   1320      62      16       32053       0       8     102960        0
       malloc-2048   2048      33      17         727       0       8     102400        0
         64 Bucket    512     129      63       43046       0      30      98304        0
         filedesc0   1072      63      21       32054       0       8      90048        0
        malloc-256    256     310      35        3530       0      62      88320        0
        malloc-256    256     219     126       48949       0      62      88320        0
          UMA Kegs    384     220       3         220       0      30      85632        0
        malloc-128    128     385     266       62842       0     126      83328        0
       malloc-8192   8192       5       5          17       0       1      81920        0
       malloc-2048   2048      20      16        3973       0       8      73728        0
        sctp_laddr     48      68    1444       15607       0     254      72576        0
      malloc-16384  16384       1       3           6       0       1      65536        0
         32 Bucket    256     125     130       25001       0      62      65280        0
         malloc-64     64     668     340       52008       0     254      64512        0
        malloc-256    256      90     135       64264       0      62      57600        0
       malloc-4096   4096      12       1          23       0       2      53248        0
       malloc-4096   4096      11       2        6023       0       2      53248        0
         malloc-64     64     445     374      438728       0     254      52416        0
        malloc-128    128      96     276       32066       0     126      47616        0
        malloc-384    384      98      22         627       0      30      46080        0
     udplite_inpcb    488       0      88        4168       0     254      42944        0
        malloc-256    256      26     139       34664       0      62      42240        0
        malloc-256    256     108      57        1116       0      62      42240        0
           DIRHASH   1024      34       6          34       0      16      40960        0
       malloc-8192   8192       5       0           5       0       1      40960        0
        malloc-512    512      10      70       15134       0      30      40960        0
              pipe    744      23      32         893       0      16      40920        0
             Files     80     240     260      116903       0     126      40000        0
             NAMEI   1024       0      36      148942       0      16      36864        0
        malloc-512    512      12      60       10896       0      30      36864        0
         malloc-64     64     449     118         639       0     254      36288        0
        malloc-128    128      12     267        7752       0     126      35712        0
      malloc-32768  32768       1       0           1       0       1      32768        0
      malloc-32768  32768       1       0           1       0       1      32768        0
      malloc-32768  32768       1       0           1       0       1      32768        0
      malloc-16384  16384       0       2         170       0       1      32768        0
       malloc-8192   8192       0       4          54       0       1      32768        0
       malloc-8192   8192       4       0           4       0       1      32768        0
       malloc-8192   8192       2       2         103       0       1      32768        0
           pcpu-64     64     479      33         479       0     254      32768        0
      tcp_rack_pcb    704      23      21        1421       0      16      30976        0
       tcp_bbr_pcb    832       0      36         765       0      16      29952        0
         TURNSTILE    136     181      29         181       0      62      28560        0
         16 Bucket    144      96     100        2220       0      62      28224        0
             KNOTE    160      28     147      583271       0      62      28000        0
          8 Bucket     80     144     206       27330       0     126      28000        0
       malloc-8192   8192       3       0           3       0       1      24576        0
       malloc-8192   8192       1       2           8       0       1      24576        0
               PWD     32      20     736       31139       0     254      24192        0
         malloc-64     64     179     199       32172       0     254      24192        0
            ttyinq    160     135      15         300       0      62      24000        0
         malloc-16     16     169    1331       91031       0     254      24000        0
           ttyoutq    256      72      18         160       0      62      23040        0
sctp_stream_msg_out    112      14     166        5809       0     254      20160        0
        SLEEPQUEUE     88     181      43         181       0     126      19712        0
             ripcb    488       5      35         386       0     254      19520        0
       Mountpoints   2752       2       5           2       0       4      19264        0
             unpcb    256      20      55        1802       0     254      19200        0
      malloc-16384  16384       1       0           1       0       1      16384        0
      malloc-16384  16384       1       0           1       0       1      16384        0
      malloc-16384  16384       1       0           1       0       1      16384        0
       malloc-8192   8192       2       0           2       0       1      16384        0
      vtnet_tx_hdr     24       0     668     1019647       0     254      16032        0
        malloc-384    384      24      16        2450       0      30      15360        0
       malloc-4096   4096       0       3          11       0       2      12288        0
       malloc-4096   4096       2       1           3       0       2      12288        0
       malloc-1024   1024       2      10         489       0      16      12288        0
       malloc-1024   1024       5       7           6       0      16      12288        0
       malloc-1024   1024      10       2          10       0      16      12288        0
        malloc-512    512       0      24         141       0      30      12288        0
         malloc-64     64      53     136        3310       0     254      12096        0
          2 Bucket     32      73     305        3620       0     254      12096        0
      tcp_rack_map    120      46      53        2180       0     126      11880        0
        sctp_readq    152       1      77        4278       0     254      11856        0
         udp_inpcb    488       2      22         405       0     254      11712        0
              kenv    258      15      30        1061       0      30      11610        0
     routing nhops    256      27      18          34       0      62      11520        0
        malloc-384    384      21       9          21       0      30      11520        0
       malloc-2048   2048       3       1           3       0       8       8192        0
       malloc-2048   2048       0       4          40       0       8       8192        0
       malloc-1024   1024       2       6         161       0      16       8192        0
       malloc-1024   1024       3       5           5       0      16       8192        0
        malloc-512    512      12       4          71       0      30       8192        0
           pf tags    104      20      58         107       0     126       8112        0
           rtentry    176      30      16          34       0      62       8096        0
              PGRP     88      35      57          66       0     126       8096        0
          rl_entry     40      79     123          79       0     254       8080        0
             udpcb     32       2     250        4573       0     254       8064        0
         malloc-64     64      12     114         182       0     254       8064        0
         malloc-64     64      15     111          80       0     254       8064        0
         malloc-32     32      46     206        8227       0     254       8064        0
         malloc-32     32      51     201          85       0     254       8064        0
         malloc-32     32      96     156       31159       0     254       8064        0
         malloc-32     32      38     214         805       0     254       8064        0
         malloc-32     32      67     185        4132       0     254       8064        0
         malloc-32     32      55     197        1539       0     254       8064        0
          4 Bucket     48       6     162         635       0     254       8064        0
         malloc-16     16     256     244         256       0     254       8000        0
         malloc-16     16      83     417         306       0     254       8000        0
         malloc-16     16     189     311        1440       0     254       8000        0
         malloc-16     16      19     481       36295       0     254       8000        0
         malloc-16     16       9     491          16       0     254       8000        0
        malloc-128    128      33      29         234       0     126       7936        0
       UMA Slabs 1    176      31      14          31       0      62       7920        0
            itimer    352       0      22           8       0      30       7744        0
        malloc-384    384       0      20           4       0      30       7680        0
        malloc-384    384      11       9          11       0      30       7680        0
     FPU_save_area    832       1       8           1       0      16       7488        0
            cpuset    104       7      55          41       0     126       6448        0
         domainset     40       0     126          26       0     254       5040        0
 epoch_record pcpu    256       4      12           4       0      62       4096        0
       malloc-4096   4096       1       0           1       0       2       4096        0
       malloc-2048   2048       0       2          12       0       8       4096        0
       malloc-2048   2048       1       1           1       0       8       4096        0
        malloc-512    512       1       7           1       0      30       4096        0
        malloc-512    512       2       6           2       0      30       4096        0
        malloc-512    512       1       7           3       0      30       4096        0
        malloc-512    512       1       7           2       0      30       4096        0
           pcpu-16     16       7     249           7       0     254       4096        0
         hostcache     96       1      41           1       0     254       4032        0
          syncache    168       0      24           4       0     254       4032        0
         malloc-32     32       8     118        1080       0     254       4032        0
         malloc-16     16       7     243           7       0     254       4000        0
            mqnode    416       3       6           3       0      30       3744        0
        KMAP ENTRY     96      12      27          12       0       0       3744        0
              vmem   1856       1       1           1       0       8       3712        0
           SMR CPU     32       2      29           2       0     254        992        0
        SMR SHARED     24       2      29           2       0     254        744        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
   sctp_asconf_ack     48       0       0           0       0     254          0        0
       sctp_asconf     40       0       0           0       0     254          0        0
   pf state scrubs     40       0       0           0       0     254          0        0
   pf frag entries     40       0       0           0       0     254          0        0
          pf frags    248       0       0           0       0      62          0        0
  pf table entries    160       0       0           0       0      62          0        0
pf table entry counters     64       0       0           0       0     254          0        0
   pf source nodes    136       0       0           0       0     254          0        0
     pf state keys     88       0       0           0       0     126          0        0
         pf states    296       0       0           0       0     254          0        0
          pf mtags     48       0       0           0       0     254          0        0
    IPsec SA lft_c     16       0       0           0       0     254          0        0
      tcp_log_node    120       0       0           0       0     126          0        0
    tcp_log_bucket    176       0       0           0       0      62          0        0
          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
            AIOLIO    272       0       0           0       0      30          0        0
             AIOCB    552       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
        mqnotifier    216       0       0           0       0      62          0        0
            mvdata     64       0       0           0       0     254          0        0
            mqueue    248       0       0           0       0      62          0        0
        TMPFS node    224       0       0           0       0      62          0        0
           NCLNODE    584       0       0           0       0      16          0        0
     LTS VFS Cache    360       0       0           0       0      30          0        0
       L VFS Cache    320       0       0           0       0      30          0        0
     STS VFS Cache    144       0       0           0       0      62          0        0
           cryptop    280       0       0           0       0      30          0        0
  linux_dma_object     24       0       0           0       0     254          0        0
  linux_dma_pctrie    144       0       0           0       0      62          0        0
   IOMMU_MAP_ENTRY    120       0       0           0       0     126          0        0
      ktls_session    192       0       0           0       0      62          0        0
    mbuf_jumbo_16k  16384       0       0           0       0     254          0        0
     mbuf_jumbo_9k   9216       0       0           0       0     254          0        0
      audit_record   1280       0       0           0       0       8          0        0
        MAC labels     40       0       0           0       0     254          0        0
            vnpbuf   2624       0       0           0       0      64          0        0
            mdpbuf   2624       0       0           0       0       3          0        0
           nfspbuf   2624       0       0           0       0      16          0        0
            swwbuf   2624       0       0           0       0       8          0        0
            swrbuf   2624       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
      malloc-65536  65536       0       0           0       0       1          0        0
      malloc-65536  65536       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-16384  16384       0       0           0       0       1          0        0
      malloc-16384  16384       0       0           0       0       1          0        0
       malloc-4096   4096       0       0           0       0       2          0        0
           pcpu-32     32       0       0           0       0     254          0        0
            pcpu-4      4       0       0           0       0     254          0        0
            fakepg    104       0       0           0       0     126          0        0
          UMA Hash    256       0       0           0       0      62          0        0

Crashes (2):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2021/02/16 14:40 freebsd-src 184c1b943937 98682e5e console log report ci-freebsd-main Fatal trap 12: page fault in __mtx_assert
2021/02/01 19:06 freebsd-src 69c5fa5cd1ec e6b95f32 console log report ci-freebsd-main Fatal trap 12: page fault in __mtx_assert
* Struck through repros no longer work on HEAD.