syzbot


Fatal trap NUM: page fault in knlist_remove_kq

Status: auto-obsoleted due to no activity on 2022/09/20 07:08
Reported-by: syzbot+81270844d2029cf6ff5e@syzkaller.appspotmail.com
First crash: 665d, last: 665d
Similar bugs (1)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
freebsd Fatal trap 12: page fault in knlist_remove_kq 3 1024d 1032d 2/2 fixed on 2021/09/02 07:46

Sample crash report:
Fatal trap 12: page fault while in kernel mode
cpuid = 0; apic id = 00
fault virtual address	= 0x18
fault code		= supervisor read data, page not present
instruction pointer	= 0x20:0xffffffff8159acc6
stack pointer	        = 0x28:0xfffffe009c18c750
frame pointer	        = 0x28:0xfffffe009c18c7b0
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		= 39430 (syz-executor.1)
trap number		= 12
panic: page fault
cpuid = 0
time = 133
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0xc7/frame 0xfffffe009c18bf30
kdb_backtrace() at kdb_backtrace+0xd3/frame 0xfffffe009c18c090
vpanic() at vpanic+0x254/frame 0xfffffe009c18c170
panic() at panic+0xb5/frame 0xfffffe009c18c230
trap_fatal() at trap_fatal+0x6bd/frame 0xfffffe009c18c350
trap_pfault() at trap_pfault+0x182/frame 0xfffffe009c18c490
trap() at trap+0x5b3/frame 0xfffffe009c18c680
calltrap() at calltrap+0x8/frame 0xfffffe009c18c680
--- trap 0xc, rip = 0xffffffff8159acc6, rsp = 0xfffffe009c18c750, rbp = 0xfffffe009c18c7b0 ---
knlist_remove_kq() at knlist_remove_kq+0x66/frame 0xfffffe009c18c7b0
kqueue_drain() at kqueue_drain+0x51c/frame 0xfffffe009c18c820
kqueue_close() at kqueue_close+0xc8/frame 0xfffffe009c18c880
_fdrop() at _fdrop+0x58/frame 0xfffffe009c18c8b0
closef() at closef+0x689/frame 0xfffffe009c18ca90
fdescfree() at fdescfree+0xa84/frame 0xfffffe009c18cc70
exit1() at exit1+0x915/frame 0xfffffe009c18cd10
sys_exit() at sys_exit+0x28/frame 0xfffffe009c18cd30
amd64_syscall() at amd64_syscall+0x410/frame 0xfffffe009c18cf30
fast_syscall_common() at fast_syscall_common+0xf8/frame 0xfffffe009c18cf30
--- syscall (1, FreeBSD ELF64, sys_exit), rip = 0x2ebeda, rsp = 0x83229e508, rbp = 0x83229e510 ---
KDB: enter: panic
[ thread pid 39430 tid 143854 ]
Stopped at      kdb_enter+0x6b: movq    $0,0x275b2ea(%rip)
db> 
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         0xfffffe00033eee30
rdx         0xdffff7c000000000
rbx                          0
rsp         0xfffffe009c18c070
rbp         0xfffffe009c18c090
rsi                        0x1
rdi                          0
r8                         0x3
r9                  0xffffffff
r10                          0
r11         0xfffffe009ec496f0
r12                          0
r13         0xfffffe009ec491e0
r14         0xffffffff82b5ae60  .str.26
r15         0xffffffff82b5ae60  .str.26
rip         0xffffffff8171b42b  kdb_enter+0x6b
rflags                    0x46
kdb_enter+0x6b: movq    $0,0x275b2ea(%rip)
db> show proc
Process 39430 (syz-executor.1) at 0xfffffe0058c85000:
 state: NORMAL
 uid: 0  gids: 0, 0, 5
 parent: pid 1 at 0xfffffe0053dcc000
 ABI: FreeBSD ELF64
 flag: 0x10002000  flag2: 0x40000
 arguments: /root/syz-executor.1 exec
 reaper: 0xfffffe0053dcc000 reapsubtree: 1
 sigparent: 20
 vmspace: 0xfffffe00a5e5f3f0
   (map 0xfffffe00a5e5f3f0)
   (map.pmap 0xfffffe00a5e5f4b0)
   (pmap 0xfffffe00a5e5f518)
 threads: 1
143854                   Run     CPU 0                       syz-executor.1
db> ps
  pid  ppid  pgrp   uid  state   wmesg   wchan               cmd
39431   781   781     0  R       (threaded)                  syz-executor.3
135018                   RunQ                                syz-executor.3
143956                   RunQ                                syz-executor.3
39430     1   777     0  RE      CPU 0                       syz-executor.1
39429   778   778     0  R       (threaded)                  syz-executor.2
143834                   RunQ                                syz-executor.2
143949                   S       uwait   0xfffffe0057844f00  syz-executor.2
39427   776   776     0  T       (threaded)                  syz-executor.0
143552                   s                                   syz-executor.0
143954                   RunQ                                syz-executor.0
39423     1   777     0  S       uwait   0xfffffe00585cdc80  syz-executor.1
15674     0     0     0  DL      mdwait  0xfffffe009f17c000  [md9]
 7025  7019  7025     0  Ss      select  0xfffffe0056fbc640  dhclient
 7022     1  7022     0  Ss      select  0xfffffe0056fbc4c0  dhclient
 7019  7012   430    65  S       select  0xfffffe0056f9cbc0  dhclient
 7012   430   430     0  S       wait    0xfffffe009f07b000  sh
 7003     1  7003    65  Ss      select  0xfffffe0056fbc540  dhclient
 4576     1  4576     0  Ss      select  0xfffffe00578718c0  dhclient
 4573     1  4573     0  Ss      select  0xfffffe0056f9c9c0  dhclient
 4554     1  4554    65  Ss      select  0xfffffe0056f9c940  dhclient
 1056     1  1056     0  Ss      select  0xfffffe0056f9cac0  dhclient
 1053     1  1053     0  Ss      select  0xfffffe0056fbc940  dhclient
  781   774   781     0  Ss      nanslp  0xffffffff83e43dc1  syz-executor.3
  778   774   778     0  Ss      nanslp  0xffffffff83e43dc1  syz-executor.2
  777   774   777     0  Rs                                  syz-executor.1
  776   774   776     0  Rs      nanslp  0xffffffff83e43dc1  syz-executor.0
  774   772   772     0  S       (threaded)                  syz-fuzzer
100104                   S       uwait   0xfffffe0058afff00  syz-fuzzer
100119                   S       uwait   0xfffffe00585cbd00  syz-fuzzer
100120                   S       kqread  0xfffffe005785bb00  syz-fuzzer
100121                   S       uwait   0xfffffe00585cbf00  syz-fuzzer
100122                   S       uwait   0xfffffe009e7c1f00  syz-fuzzer
100123                   S       uwait   0xfffffe009e7c2080  syz-fuzzer
100124                   S       uwait   0xfffffe0058b01980  syz-fuzzer
100125                   S       uwait   0xfffffe0058b01680  syz-fuzzer
100128                   S       uwait   0xfffffe0058b02180  syz-fuzzer
  772   770   772     0  Ss      pause   0xfffffe009efeb0b0  csh
  770   688   770     0  Ss      select  0xfffffe0056f9ca40  sshd
  754     1   754     0  Ss+     ttyin   0xfffffe0056f2fcb0  getty
  753     1   753     0  Ss+     ttyin   0xfffffe00585d70b0  getty
  752     1   752     0  Ss+     ttyin   0xfffffe00585d74b0  getty
  751     1   751     0  Ss+     ttyin   0xfffffe00585d78b0  getty
  750     1   750     0  Ss+     ttyin   0xfffffe00585d7cb0  getty
  749     1   749     0  Ss+     ttyin   0xfffffe00585d80b0  getty
  748     1   748     0  Ss+     ttyin   0xfffffe00585d84b0  getty
  747     1   747     0  Ss+     ttyin   0xfffffe00585d88b0  getty
  746     1   746     0  Ss+     ttyin   0xfffffe00585d8cb0  getty
  692     1   692     0  Ss      nanslp  0xffffffff83e43dc1  cron
  688     1   688     0  Ss      select  0xfffffe0057871a40  sshd
  501     1   501     0  Ss      select  0xfffffe0056f9cd40  syslogd
  430     1   430     0  Ss      wait    0xfffffe0058c84000  devd
  429     1   429    65  Ss      select  0xfffffe0057871ac0  dhclient
  344     1   344     0  Ss      select  0xfffffe00578719c0  dhclient
  341     1   341     0  Ss      select  0xfffffe0056f9d040  dhclient
   17     0     0     0  DL      vlruwt  0xfffffe0056f67548  [vnlru]
   16     0     0     0  DL      syncer  0xffffffff83f695e0  [syncer]
   15     0     0     0  DL      (threaded)                  [bufdaemon]
100079                   D       psleep  0xffffffff83f67be0  [bufdaemon]
100082                   D       -       0xffffffff83211f80  [bufspacedaemon-0]
100095                   D       sdflush 0xfffffe0053c6e8e8  [/ worker]
    9     0     0     0  DL      psleep  0xffffffff83f9b700  [vmdaemon]
    8     0     0     0  DL      (threaded)                  [pagedaemon]
100077                   D       psleep  0xffffffff83f8f5b8  [dom0]
100083                   D       launds  0xffffffff83f8f5c4  [laundry: dom0]
100084                   D       umarcl  0xffffffff81e4d160  [uma]
    7     0     0     0  DL      -       0xffffffff83c003a8  [rand_harvestq]
    6     0     0     0  RL                                  [pf purge]
    5     0     0     0  DL      waiting 0xffffffff84766420  [sctp_iterator]
    4     0     0     0  DL      (threaded)                  [cam]
100044                   D       -       0xffffffff83aa3340  [doneq0]
100045                   D       -       0xffffffff83aa32c0  [async]
100076                   D       -       0xffffffff83aa3140  [scanner]
   14     0     0     0  DL      seqstat 0xfffffe0007962888  [sequencer 00]
    3     0     0     0  DL      (threaded)                  [crypto]
100040                   D       crypto_ 0xffffffff83f8ade0  [crypto]
100041                   D       crypto_ 0xfffffe0053e71d30  [crypto returns 0]
100042                   D       crypto_ 0xfffffe0053e71d80  [crypto returns 1]
   13     0     0     0  DL      (threaded)                  [geom]
100035                   D       -       0xffffffff83e193c0  [g_event]
100036                   D       -       0xffffffff83e193e0  [g_up]
100037                   D       -       0xffffffff83e19400  [g_down]
    2     0     0     0  WL      (threaded)                  [clock]
100029                   I                                   [clock (0)]
100030                   I                                   [clock (1)]
   12     0     0     0  WL      (threaded)                  [intr]
100015                   I                                   [swi5: fast taskq]
100018                   I                                   [swi6: task queue]
100019                   I                                   [swi6: Giant taskq]
100031                   I                                   [swi1: netisr 0]
100032                   I                                   [swi1: hpts]
100033                   I                                   [swi1: hpts]
100046                   I                                   [irq24: virtio_pci0]
100047                   I                                   [irq25: virtio_pci0]
100048                   I                                   [irq26: virtio_pci0]
100049                   I                                   [irq27: virtio_pci0]
100050                   I                                   [irq28: virtio_pci1]
100051                   I                                   [irq29: virtio_pci1]
100052                   I                                   [irq30: virtio_pci1]
100053                   I                                   [irq31: virtio_pci1]
100054                   I                                   [irq32: virtio_pci1]
100059                   I                                   [irq33: virtio_pci2]
100060                   I                                   [irq34: virtio_pci2]
100061                   I                                   [irq35: virtio_pci2]
100063                   I                                   [irq1: atkbd0]
100064                   I                                   [irq12: psm0]
100065                   I                                   [swi0: uart uart++]
100069                   I                                   [swi1: pf send]
   11     0     0     0  RL      (threaded)                  [idle]
100003                   CanRun                              [idle: cpu0]
100004                   CanRun                              [idle: cpu1]
    1     0     1     0  SLs     wait    0xfffffe0053dcc000  [init]
   10     0     0     0  DL      audit_w 0xffffffff83f8b8c0  [audit]
    0     0     0     0  DLs     (threaded)                  [kernel]
100000                   D       swapin  0xffffffff83e19dc0  [swapper]
100005                   D       -       0xfffffe000817de00  [if_config_tqg_0]
100006                   D       -       0xfffffe000817dd00  [softirq_0]
100007                   D       -       0xfffffe000817dc00  [softirq_1]
100008                   D       -       0xfffffe000817db00  [if_io_tqg_0]
100009                   D       -       0xfffffe000817da00  [if_io_tqg_1]
100010                   D       -       0xfffffe000817d900  [inm_free taskq]
100011                   D       -       0xfffffe000817d800  [linuxkpi_irq_wq]
100012                   D       -       0xfffffe000817d700  [in6m_free taskq]
100013                   D       -       0xfffffe000817d600  [deferred_unmount ta]
100014                   D       -       0xfffffe000817d500  [thread taskq]
100016                   D       -       0xfffffe000817d300  [kqueue_ctx taskq]
100017                   D       -       0xfffffe000817d200  [pci_hp taskq]
100020                   D       -       0xfffffe000817ce00  [aiod_kick taskq]
100021                   D       -       0xfffffe000817cd00  [linuxkpi_short_wq_0]
100022                   D       -       0xfffffe000817cd00  [linuxkpi_short_wq_1]
100023                   D       -       0xfffffe000817cd00  [linuxkpi_short_wq_2]
100024                   D       -       0xfffffe000817cd00  [linuxkpi_short_wq_3]
100025                   D       -       0xfffffe000817cc00  [linuxkpi_long_wq_0]
100026                   D       -       0xfffffe000817cc00  [linuxkpi_long_wq_1]
100027                   D       -       0xfffffe000817cc00  [linuxkpi_long_wq_2]
100028                   D       -       0xfffffe000817cc00  [linuxkpi_long_wq_3]
100034                   D       -       0xfffffe000817cb00  [firmware taskq]
100038                   D       -       0xfffffe000817ca00  [crypto_0]
100039                   D       -       0xfffffe000817ca00  [crypto_1]
100055                   D       -       0xfffffe000817c800  [vtnet0 rxq 0]
100056                   D       -       0xfffffe000817c700  [vtnet0 txq 0]
100057                   D       -       0xfffffe000817c600  [vtnet0 rxq 1]
100058                   D       -       0xfffffe000817c500  [vtnet0 txq 1]
100062                   D       vtbslp  0xfffffe0056f9d380  [virtio_balloon]
100066                   D       -       0xffffffff82b60ce1  [deadlkres]
100070                   D       -       0xfffffe000817e100  [mca taskq]
100071                   D       -       0xfffffe00585d3300  [acpi_task_0]
100072                   D       -       0xfffffe00585d3300  [acpi_task_1]
100073                   D       -       0xfffffe00585d3300  [acpi_task_2]
100075                   D       -       0xfffffe000817c900  [CAM taskq]
db> show all locks
db> show malloc
              Type        InUse        MemUse     Requests
           pf_hash            5        11524K            5
          tcp_hpts            7         4801K            7
            devbuf         4217         4323K         4247
         sysctloid        35322         2081K        35510
             vtbuf           24         1968K           46
              kobj          328         1312K          508
            newblk            9         1026K        38922
          vfscache            3         1025K            3
               pcb          216          755K        10703
          inodedep           31          524K        40501
         ufs_quota            1          512K            1
          vfs_hash            1          512K            1
           callout            2          512K            2
              intr            4          472K            4
              vmem            3          274K            5
           subproc          130          256K        39563
            acpica         1674          184K        57552
         vnet_data            1          168K            1
          filedesc           20          153K        76467
           tidhash            3          141K            3
            linker          358          134K          386
           pagedep           10          131K        38430
        tfo_ccache            1          128K            1
            DEVFS1          110          110K          128
               sem            4          106K            4
         sctp_stro           97           97K          788
               bus          995           81K         5208
         sctp_atcl          194           73K         5622
          mtx_pool            2           72K            2
               BPF           38           71K         2892
          syncache            1           68K            1
            module          514           65K          514
          acpitask            1           64K            1
       ddb_capture            1           64K            1
              umtx          352           44K          352
           kdtrace          209           42K        83389
              temp           34           33K         6735
            DEVFS3          129           33K          140
         hostcache            1           32K            1
               shm            1           32K            1
               msg            4           30K            4
        gtaskqueue           18           26K           18
            kbdmux            6           22K            6
        DEVFS_RULE           56           20K           56
            ifaddr           69           20K           71
         ufs_mount            4           17K            5
              proc            3           17K            3
               tty           16           16K           16
          routetbl          130           16K          410
           ithread           97           16K           97
            bus-sc           34           15K         1681
         sctp_timw           52           13K           52
           lltable           42           13K           89
            KTRACE          100           13K          100
         sctp_atky          291           13K         6410
             ifnet            7           13K            7
       ether_multi          152           13K          162
      eventhandler          136           12K          136
              kenv           95           12K           95
              GEOM           68           12K          551
              rman           88           11K          431
         CAM queue            5           11K         1528
            kqueue           68           10K        44511
         in6_multi           65            9K           65
         bmsafemap            2            9K        39899
              UART           12            9K           12
           devstat            4            9K            4
              ksem            1            8K            1
               rpc            2            8K            2
             shmfd            1            8K          579
       pfs_vncache            1            8K            1
         pfs_nodes           20            8K           20
     audit_evclass          237            8K          296
         taskqueue           63            7K           63
              cred           25            7K          297
            sglist            5            7K            5
           CAM DEV            3            6K          510
            plimit           23            6K          570
            dirrem           22            6K        39429
       ufs_dirhash           24            5K           24
               UMA          272            5K          273
          pf_ifnet           10            5K           19
            DEVFSP           67            5K         5196
                vt           11            5K           11
           md_disk            2            5K          219
           memdesc            1            4K            1
               MCA           32            4K           32
        md_sectors            1            4K            2
             evdev            4            4K            4
           session           31            4K           47
           acpisem           28            4K           28
           pwddesc           56            4K        39403
         proc-args           89            4K        40502
             hhook           15            4K           17
          kcovinfo           52            4K           52
         sctp_athm          194            4K         5622
          sctp_map          194            4K         1576
             lockf           28            3K           47
             selfd           45            3K       500502
          terminal           11            3K           11
          freefile           21            3K        39426
           uidinfo            3            3K            9
        local_apic            1            2K            1
           io_apic            1            2K            1
       fpukern_ctx            2            2K            2
         ipsec-saq            2            2K            2
            select           16            2K           49
            ip6ndp           12            2K           14
            Unitno           29            2K         2493
          sctp_ifa           13            2K           14
           CAM XPT           22            2K          543
               msi           12            2K           12
          in_multi            6            2K            8
       ipsecpolicy            2            2K            2
           acpidev           20            2K           20
             clone            9            2K            9
               tun            7            2K            7
           softdep            1            1K            1
             mkdir            8            1K        76828
            sahead            1            1K            1
          secasvar            1            1K            1
             nhops            6            1K            8
       vnodemarker            2            1K           70
      NFSD session            1            1K            1
        CAM periph            4            1K          271
          freework            4            1K        38421
          sctp_ifn            6            1K           14
             ipsec            3            1K            3
          freeblks            3            1K        38420
               mld            6            1K            6
              igmp            6            1K            6
         toponodes            6            1K            6
            isadev            6            1K            6
             mount           16            1K           89
          pci_link           10            1K           10
         newdirblk            5            1K        38414
            crypto            4            1K            4
 encap_export_host           12            1K           12
            diradd            4            1K        39467
              pfil            4            1K            4
          procdesc            4            1K           16
              cdev            2            1K            2
       inpcbpolicy           14            1K        11998
               osd            8            1K         3208
    chacha20random            1            1K            1
      NFSD lckfile            1            1K            1
     NFSD V4client            1            1K            1
             DEVFS            9            1K           10
            CC Mem            4            1K         3252
            vnodes            1            1K            1
           CAM SIM            2            1K            2
            feeder            7            1K            7
         cryptodev            3            1K         3122
           tcpfunc            3            1K            3
        loginclass            3            1K           60
            prison            6            1K            6
       lkpikmalloc            5            1K            6
        aesni_data            2            1K            2
          nexusdev            8            1K            8
            apmdev            1            1K            1
          atkbddev            2            1K            2
     CAM dev queue            2            1K            2
 CAM I/O Scheduler            1            1K            1
          CAM path            4            1K         1034
          pmchooks            1            1K            1
            soname            4            1K        10736
          sctp_vrf            1            1K            1
              vnet            1            1K            1
           entropy            2            1K           42
               pmc            1            1K            1
          acpiintr            1            1K            1
          filecaps            4            1K          108
filedesc_to_leader            1            1K           73
              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
            tcp_do            0            0K            0
           tcp_fsb            0            0K           35
            mqdata            0            0K            0
        sctp_mcore            0            0K            0
        sctp_socko            0            0K         3219
         sctp_iter            0            0K           12
         sctp_mvrf            0            0K            0
         sctp_cpal            0            0K            0
         sctp_cmsg            0            0K            0
         sctp_stre            0            0K            0
         sctp_athi            0            0K            0
         sctp_a_it            0            0K           12
         sctp_aadr            0            0K            0
         sctp_stri            0            0K            0
            ipcomp            0            0K            0
               esp            0            0K            0
                ah            0            0K            0
           filemon            0            0K            0
   NFSCL layrecall            0            0K            0
     NFSCL session            0            0K            0
        madt_table            0            0K            2
          smartpqi            0            0K            0
     NFSCL sockreq            0            0K            0
     NFSCL devinfo            0            0K            0
     NFSCL flayout            0            0K            0
               ixl            0            0K            0
      NFSCL layout            0            0K            0
     NFSD rollback            0            0K            0
      NFSCL diroff            0            0K            0
       NEWdirectio            0            0K            0
        NEWNFSnode            0            0K            0
         NFSCL lck            0            0K            0
      NFSCL lckown            0            0K            0
        ice-resmgr            0            0K            0
         ice-osdep            0            0K            0
               ice            0            0K            0
              iavf            0            0K            0
             axgbe            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
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db> show uma
              Zone   Size    Used    Free    Requests  Sleeps  Bucket  Total Mem    XFree
   mbuf_jumbo_page   4096    8320    1078       54693       0     254   38494208        0
              pbuf   2624       0     989           0       0       2    2595136        0
              mbuf    256    8733     931      200680       0     254    2473984        0
        malloc-384    384    4193    2167       44711       0      30    2442240        0
      mbuf_cluster   2048    1016       0        1016       0     254    2080768        0
        malloc-128    128   12525    2231      175862       0     126    1888768        0
          BUF TRIE    144     183   11577        3140       0      62    1693440        0
       malloc-4096   4096     341       5         534       0       2    1417216        0
       UMA Slabs 0    112   11293       5       11293       0     126    1265376        0
         sctp_asoc   2256      97     413         788       0     254    1150560        0
         vmem btag     56   18804      27       18804       0     254    1054536        0
       malloc-2048   2048     105     399        5083       0       8    1032192        0
        RADIX NODE    144    6095     676      783819       0      63     975024        0
           sctp_ep   1208      97     673        4834       0     254     930160        0
         FFS inode   1160     515     122       39941       0       8     738920        0
        malloc-256    256     357    2193       87864       0      62     652800        0
         VM OBJECT    264    2224     146      835908       0      30     625680        0
        malloc-256    256       2    2293       66659       0      62     587520        0
             tcpcb   1104       4     507        3197       0     254     564144        0
       malloc-1024   1024     100     380         839       0      16     491520        0
            socket    960      35     473       18105       0     254     487680        0
        256 Bucket   2048     188      22        1501       0       8     430080        0
      malloc-65536  65536       4       2         138       0       1     393216        0
            lkpimm    168       1    2327           1       0      62     391104        0
          lkpicurr    168       2    2326           2       0      62     391104        0
        sctp_raddr    736      97     420         788       0     254     380512        0
        malloc-384    384     194     766        5623       0      30     368640        0
             VNODE    448     554     166       39982       0      30     322560        0
            THREAD   1808     151      25       43956       0       8     318208        0
       malloc-4096   4096      62       6       39739       0       2     278528        0
         malloc-64     64    3913     434      507433       0     254     278208        0
         MAP ENTRY     96    2675     223     1980778       0     126     278208        0
      malloc-65536  65536       2       2         138       0       1     262144        0
       mbuf_packet    256      55     961       46387       0     254     260096        0
         malloc-16     16   14624     376       18026       0     254     240000        0
            DEVCTL   1024      19     201         159       0       0     225280        0
      malloc-16384  16384      10       3       38392       0       1     212992        0
      malloc-65536  65536       2       1          10       0       1     196608        0
        malloc-128    128    1315     204       27089       0     126     194432        0
        malloc-256    256     244     506       43579       0      62     192000        0
         UMA Zones    768     244       5         245       0      16     191232        0
         malloc-32     32    5354     568        6481       0     254     189504        0
     FPU_save_area    832     153      63       45720       0      16     179712        0
       FFS2 dinode    256     515     175       39941       0      62     176640        0
        malloc-256    256      83     607       39979       0      62     176640        0
       S VFS Cache    104    1022     499       42218       0     126     158184        0
       malloc-1024   1024     121      23         296       0      16     147456        0
             unpcb    256      17     493        1240       0     254     130560        0
           VMSPACE   2552      39       9       39162       0       4     122496        0
         64 Bucket    512     152      80       26601       0      30     118784        0
        128 Bucket   1024      78      37        4623       0      16     117760        0
          ksiginfo    112      63     981        1926       0     126     116928        0
         malloc-64     64     943     632       83496       0     254     100800        0
      malloc-32768  32768       1       2         121       0       1      98304        0
      malloc-16384  16384       6       0          21       0       1      98304        0
              PROC   1352      56      16       39431       0       8      97344        0
              pipe    744      22     108        2617       0      16      96720        0
         tcp_inpcb    424       4     212        3197       0      30      91584        0
       malloc-8192   8192      10       1          12       0       1      90112        0
       malloc-4096   4096      18       4         351       0       2      90112        0
         filedesc0   1072      57      27       39403       0       8      90048        0
          UMA Kegs    384     230       3         231       0      30      89472        0
             g_bio    408       0     210       15083       0      30      85680        0
        malloc-128    128     397     254        4666       0     126      83328        0
       malloc-2048   2048       9      31         516       0       8      81920        0
         32 Bucket    256     188     127       26643       0      62      80640        0
        sctp_chunk    152      98     422         549       0     254      79040        0
         udp_inpcb    424       6     174        5717       0      30      76320        0
         malloc-64     64     649     422       46217       0     254      68544        0
      malloc-65536  65536       1       0           1       0       1      65536        0
             ripcb    424       4     149        2374       0      30      64872        0
        malloc-512    512       9     111        7709       0      30      61440        0
sctp_stream_msg_out    112       0     540         598       0     254      60480        0
     udplite_inpcb    424       0     126         710       0      30      53424        0
         malloc-64     64     105     714       18579       0     254      52416        0
             Files     80     211     439       96613       0     126      52000        0
        malloc-256    256      92     103         816       0      62      49920        0
        malloc-256    256       7     188       38479       0      62      49920        0
        malloc-256    256      61     134         641       0      62      49920        0
        malloc-256    256      14     181       38600       0      62      49920        0
           DIRHASH   1024      35      13          35       0      16      49152        0
             NAMEI   1024       0      48      194630       0      16      49152        0
       malloc-8192   8192       5       1         106       0       1      49152        0
       malloc-4096   4096       9       3         552       0       2      49152        0
       malloc-2048   2048      14      10         135       0       8      49152        0
       malloc-2048   2048       1      23         548       0       8      49152        0
       malloc-1024   1024       4      44         512       0      16      49152        0
        malloc-384    384      83      37          83       0      30      46080        0
            pcpu-8      8    4687     945       20100       0     254      45056        0
          syncache    168       0     264           4       0     254      44352        0
         malloc-32     32     205    1181        5809       0     254      44352        0
            clpbuf   2624       0      16          20       0      16      41984        0
       malloc-8192   8192       3       2          47       0       1      40960        0
       malloc-8192   8192       3       2          37       0       1      40960        0
            da_ccb    544       0      70        3867       0      16      38080        0
         malloc-64     64     108     459         108       0     254      36288        0
         malloc-64     64      71     496         132       0     254      36288        0
         malloc-64     64       2     565         680       0     254      36288        0
         malloc-64     64       0     567         203       0     254      36288        0
        malloc-128    128      35     244         247       0     126      35712        0
        malloc-128    128      67     212          92       0     126      35712        0
        malloc-128    128      77     202         232       0     126      35712        0
        malloc-128    128      90     189       38844       0     126      35712        0
        malloc-128    128      11     268         166       0     126      35712        0
     routing nhops    256      27     108          34       0      62      34560        0
           ttyoutq    256      72      63         160       0      62      34560        0
        malloc-384    384      74      16         414       0      30      34560        0
         TURNSTILE    136     177      75         177       0      62      34272        0
        SLEEPQUEUE     88     177     207         177       0     126      33792        0
      malloc-32768  32768       1       0           1       0       1      32768        0
      malloc-32768  32768       1       0           1       0       1      32768        0
       malloc-8192   8192       4       0           4       0       1      32768        0
       malloc-2048   2048       1      15          13       0       8      32768        0
       malloc-2048   2048       1      15           3       0       8      32768        0
       malloc-2048   2048       2      14         531       0       8      32768        0
       malloc-1024   1024      13      19        2107       0      16      32768        0
       malloc-1024   1024      20      12          37       0      16      32768        0
       malloc-1024   1024      10      22          14       0      16      32768        0
       malloc-1024   1024       2      30          11       0      16      32768        0
        malloc-512    512       6      58        1453       0      30      32768        0
        malloc-512    512       8      56           9       0      30      32768        0
        malloc-512    512       2      62          51       0      30      32768        0
           pcpu-64     64     493      19         493       0     254      32768        0
    ertt_txseginfo     40       0     808       50996       0     254      32320        0
      tcp_rack_pcb    896       0      36          35       0      16      32256        0
             KNOTE    160      30     170      257553       0      62      32000        0
            ttyinq    160     135      65         300       0      62      32000        0
          8 Bucket     80     107     293        6260       0     126      32000        0
       tcp_bbr_pcb    832       0      36          21       0      16      29952        0
            cpuset    104       7     272         629       0     126      29016        0
        sctp_laddr     48       0     588          12       0     254      28224        0
   udp_inpcb ports     32       3     879        1614       0     254      28224        0
              ertt     72       4     388        3197       0     126      28224        0
               PWD     32      21     861       38315       0     254      28224        0
         malloc-32     32     400     482        8308       0     254      28224        0
         malloc-32     32     144     738       12128       0     254      28224        0
         16 Bucket    144      88     108         675       0      62      28224        0
          4 Bucket     48       6     582         876       0     254      28224        0
       malloc-4096   4096       0       6       40443       0       2      24576        0
           rtentry    176      30     108          34       0      62      24288        0
              PGRP     88      31     245          47       0     126      24288        0
          rl_entry     40      70     536          70       0     254      24240        0
         malloc-16     16     207    1293        7018       0     254      24000        0
        malloc-384    384      22      38          24       0      30      23040        0
        malloc-384    384       4      56          25       0      30      23040        0
        malloc-384    384       0      60          45       0      30      23040        0
         domainset     40       0     567         599       0     254      22680        0
         hostcache     64       1     314           1       0     254      20160        0
             udpcb     32       6     624        6427       0     254      20160        0
   tcp_inpcb ports     32       2     628           2       0     254      20160        0
         malloc-32     32      77     553        2541       0     254      20160        0
         malloc-32     32      46     584       42097       0     254      20160        0
         malloc-32     32      41     589         669       0     254      20160        0
         malloc-32     32       0     630         335       0     254      20160        0
          2 Bucket     32      49     581        4269       0     254      20160        0
         malloc-16     16     560     690       48011       0     254      20000        0
         malloc-16     16     217    1033        1605       0     254      20000        0
       Mountpoints   2752       2       5           2       0       4      19264        0
 epoch_record pcpu    256       4      60           4       0      62      16384        0
      malloc-16384  16384       1       0           1       0       1      16384        0
       malloc-4096   4096       1       3           4       0       2      16384        0
       malloc-4096   4096       3       1           4       0       2      16384        0
        malloc-512    512       1      31         119       0      30      16384        0
        malloc-512    512       0      32           1       0      30      16384        0
           SMR CPU     32       7     504           7       0     254      16352        0
               ipq     56       0     288           2       0     254      16128        0
      vtnet_tx_hdr     24       0     668       53394       0     254      16032        0
              kenv    258      15      45        1051       0      30      15480        0
            mqnode    416       3      33           3       0      30      14976        0
              vmem   1856       1       7           1       0       8      14848        0
        SMR SHARED     24       7     504           7       0     254      12264        0
         malloc-16     16      23     727          24       0     254      12000        0
         malloc-16     16      34     716       29554       0     254      12000        0
         malloc-16     16      11     739          13       0     254      12000        0
            itimer    352       0      33          60       0      30      11616        0
       malloc-4096   4096       0       2           4       0       2       8192        0
         malloc-16     16       4     496          15       0     254       8000        0
           pcpu-16     16       7     249           7       0     254       4096        0
       UMA Slabs 1    176      11      11          11       0      62       3872        0
        KMAP ENTRY     96      12      27          14       0       0       3744        0
            pcpu-4      4       1     511           1       0     254       2048        0
               md9      4       0       0           0       0     254          0        0
       FFS1 dinode    128       0       0           0       0     126          0        0
           ada_ccb    272       0       0           0       0      30          0        0
             swblk    136       0       0           0       0      62          0        0
          swpctrie    144       0       0           0       0      62          0        0
   cdg_qdiffsample     16       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     254          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    312       0       0           0       0     254          0        0
           pf tags    104       0       0           0       0     126          0        0
          pf mtags    184       0       0           0       0      62          0        0
       tcp_bbr_map    128       0       0           0       0     126          0        0
      tcp_rack_map    120       0       0           0       0     126          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     72       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_readq    152       0       0           0       0     254          0        0
   tcp_log_id_node    120       0       0           0       0     126          0        0
 tcp_log_id_bucket    176       0       0           0       0      62          0        0
           tcp_log    416       0       0           0       0     254          0        0
          tcpreass     48       0       0           0       0     254          0        0
udplite_inpcb ports     32       0       0           0       0     254          0        0
       ripcb ports     32       0       0           0       0     254          0        0
    IPsec SA lft_c     16       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
               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
           NCLNODE    608       0       0           0       0      16          0        0
        TMPFS node    224       0       0           0       0      62          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     32       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
    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-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-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-16384  16384       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-8192   8192       0       0           0       0       1          0        0
       malloc-8192   8192       0       0           0       0       1          0        0
       malloc-8192   8192       0       0           0       0       1          0        0
       malloc-2048   2048       0       0           0       0       8          0        0
       malloc-1024   1024       0       0           0       0      16          0        0
        malloc-512    512       0       0           0       0      30          0        0
        malloc-512    512       0       0           0       0      30          0        0
        malloc-384    384       0       0           0       0      30          0        0
           pcpu-32     32       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 (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2022/06/22 07:07 freebsd-src b256d2dc0c2f 0fc5c330 console log report ci-freebsd-main Fatal trap NUM: page fault in knlist_remove_kq
* Struck through repros no longer work on HEAD.