syzbot


Fatal trap NUM: page fault in nd6_dad_timer

Status: auto-closed as invalid on 2021/12/19 18:58
Reported-by: syzbot+766e9be7af5288972334@syzkaller.appspotmail.com
First crash: 978d, last: 978d
Similar bugs (5)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
freebsd Fatal trap NUM: page fault in nd6_dad_timer (2) 1 836d 836d 0/2 auto-closed as invalid on 2022/05/10 14:39
freebsd Fatal trap NUM: page fault in nd6_dad_timer (3) 3 646d 742d 0/2 auto-obsoleted due to no activity on 2022/11/17 02:16
freebsd Fatal trap NUM: page fault in nd6_dad_timer (5) 2 296d 367d 0/2 auto-obsoleted due to no activity on 2023/11/02 07:26
freebsd Fatal trap NUM: page fault in nd6_dad_timer (4) 2 480d 541d 0/2 auto-obsoleted due to no activity on 2023/05/02 09:23
freebsd Fatal trap NUM: page fault in nd6_dad_timer (6) syz 7 20d 181d 0/2 upstream: reported syz repro on 2023/11/27 00:20

Sample crash report:
Fatal trap 12: page fault while in kernel mode
cpuid = 1; apic id = 01
fault virtual address	= 0x10
fault code		= supervisor read data, page not present
instruction pointer	= 0x20:0xffffffff81c1720b
stack pointer	        = 0x28:0xfffffe0053b62660
frame pointer	        = 0x28:0xfffffe0053b62850
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 (swi4: clock (0))
trap number		= 12
panic: page fault
cpuid = 1
time = 1632164320
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0xc7/frame 0xfffffe0053b61e70
kdb_backtrace() at kdb_backtrace+0xd3/frame 0xfffffe0053b61fd0
vpanic() at vpanic+0x2c5/frame 0xfffffe0053b620b0
panic() at panic+0xb5/frame 0xfffffe0053b62170
trap_fatal() at trap_fatal+0x6a4/frame 0xfffffe0053b62270
trap_pfault() at trap_pfault+0x186/frame 0xfffffe0053b623b0
trap() at trap+0x5e7/frame 0xfffffe0053b62590
calltrap() at calltrap+0x8/frame 0xfffffe0053b62590
--- trap 0xc, rip = 0xffffffff81c1720b, rsp = 0xfffffe0053b62660, rbp = 0xfffffe0053b62850 ---
nd6_dad_timer() at nd6_dad_timer+0x1ab/frame 0xfffffe0053b62850
softclock_call_cc() at softclock_call_cc+0x3d9/frame 0xfffffe0053b62a00
softclock() at softclock+0x152/frame 0xfffffe0053b62a50
ithread_loop() at ithread_loop+0x4f1/frame 0xfffffe0053b62bb0
fork_exit() at fork_exit+0xd0/frame 0xfffffe0053b62bf0
fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe0053b62bf0
--- trap 0, rip = 0, rsp = 0, rbp = 0 ---
KDB: enter: panic
[ thread pid 12 tid 100034 ]
Stopped at      kdb_enter+0x6b: movq    $0,0x28e258a(%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         0xf38806b25fb772ed
rdx                        0x1
rbx                          0
rsp         0xfffffe0053b61fb0
rbp         0xfffffe0053b61fd0
rsi                          0
rdi         0xffffffff817bac3a  vprintf+0x35a
r8                           0
r9          0xfffffe0053b61ae8
r10                          0
r11         0xfffffe009e9f2c30
r12         0xfffffe0053e351e0
r13         0xfffffe0053b62001
r14         0xffffffff82c7dd60  .str.18
r15         0xffffffff82c7dd60  .str.18
rip         0xffffffff817ae5ab  kdb_enter+0x6b
rflags                    0x46
kdb_enter+0x6b: movq    $0,0x28e258a(%rip)
db> show proc
Process 12 (intr) at 0xfffffe0053dfba70:
 state: NORMAL
 uid: 0  gids: 0
 parent: pid 0 at 0xffffffff84031f00
 ABI: null
 flag: 0x10000284  flag2: 0
 reaper: 0xffffffff84031f00 reapsubtree: 12
 sigparent: 20
 vmspace: 0xffffffff84032e80
   (map 0xffffffff84032e80)
   (map.pmap 0xffffffff84032f40)
   (pmap 0xffffffff84032fa0)
 threads: 23
100011                   I                                   [swi6: task queue]
100012                   I                                   [swi6: Giant taskq]
100014                   I                                   [swi5: fast taskq]
100032                   I                                   [swi1: netisr 0]
100033                   I                                   [swi3: vm]
100034                   Run     CPU 1                       [swi4: clock (0)]
100035                   I                                   [swi4: clock (1)]
100036                   I                                   [swi1: hpts]
100037                   I                                   [swi1: hpts]
100050                   I                                   [irq24: virtio_pci0]
100051                   I                                   [irq25: virtio_pci0]
100052                   I                                   [irq26: virtio_pci0]
100053                   I                                   [irq27: virtio_pci0]
100054                   I                                   [irq28: virtio_pci1]
100055                   I                                   [irq29: virtio_pci1]
100056                   I                                   [irq30: virtio_pci1]
100057                   I                                   [irq31: virtio_pci1]
100058                   I                                   [irq32: virtio_pci1]
100063                   I                                   [irq10: virtio_pci2]
100065                   I                                   [irq1: atkbd0]
100066                   I                                   [irq12: psm0]
100067                   I                                   [swi0: uart uart++]
100075                   I                                   [swi1: pf send]
db> ps
  pid  ppid  pgrp   uid  state   wmesg   wchan               cmd
10187 10170 10170     0  RV                                  syz-executor.2
10186   436   436     0  R                                   sh
10175  5562  5562     0  R       (threaded)                  syz-executor.3
100526                   RunQ                                syz-executor.3
103823                   S       sigwait 0xfffffe009ff095e8  syz-executor.3
103824                   S       uwait   0xfffffe009e9f7780  syz-executor.3
10170   780 10170     0  Ds      ppwait  0xfffffe00a6e044e8  syz-executor.2
 6812     1  6812    65  Ss      select  0xfffffe009fedbd40  dhclient
 6171     1  6171     0  Ss      select  0xfffffe009e9b9340  dhclient
 6168     1  6168     0  Ss      select  0xfffffe00a6fadbc0  dhclient
 5562   780  5562     0  Rs                                  syz-executor.3
  844     0     0     0  DL      aiordy  0xfffffe009fe67000  [aiod4]
  843     0     0     0  DL      aiordy  0xfffffe009fe67538  [aiod3]
  842     0     0     0  DL      aiordy  0xfffffe009fe67a70  [aiod2]
  841     0     0     0  DL      aiordy  0xfffffe009fe38000  [aiod1]
  780   778   778     0  R       (threaded)                  syz-fuzzer
100101                   RunQ                                syz-fuzzer
100124                   RunQ                                syz-fuzzer
100125                   Run     CPU 0                       syz-fuzzer
100126                   S       uwait   0xfffffe0058391300  syz-fuzzer
100127                   S       uwait   0xfffffe0058391400  syz-fuzzer
100128                   S       uwait   0xfffffe009e410e00  syz-fuzzer
100129                   S       uwait   0xfffffe009e410f00  syz-fuzzer
100130                   S       uwait   0xfffffe009e410500  syz-fuzzer
100131                   S       uwait   0xfffffe009e9f7c80  syz-fuzzer
  778   776   778     0  Ss      pause   0xfffffe0058b655e8  csh
  776   694   776     0  Ss      select  0xfffffe009e9b9f40  sshd
  760     1   760     0  Rs+                                 getty
  759     1   759     0  Ss+     ttyin   0xfffffe00575f84b0  getty
  758     1   758     0  Ss+     ttyin   0xfffffe00575f8cb0  getty
  757     1   757     0  Ss+     ttyin   0xfffffe00583f44b0  getty
  756     1   756     0  Ss+     ttyin   0xfffffe00583f4cb0  getty
  755     1   755     0  Ss+     ttyin   0xfffffe00583f04b0  getty
  754     1   754     0  Ss+     ttyin   0xfffffe00583f0cb0  getty
  753     1   753     0  Ss+     ttyin   0xfffffe005839b4b0  getty
  752     1   752     0  Ss+     ttyin   0xfffffe005839bcb0  getty
  698     1   698     0  Ss      nanslp  0xffffffff8405da40  cron
  694     1   694     0  Ss      select  0xfffffe0058af6440  sshd
  507     1   507     0  Ss      select  0xfffffe0058af6840  syslogd
  436     1   436     0  Ss      wait    0xfffffe0058b65000  devd
  435     1   435    65  Ss      select  0xfffffe0058af6cc0  dhclient
  350     1   350     0  Ss      select  0xfffffe0058af6a40  dhclient
  347     1   347     0  Ss      select  0xfffffe005740f5c0  dhclient
   23     0     0     0  DL      syncer  0xffffffff84185de0  [syncer]
   22     0     0     0  DL      vlruwt  0xfffffe0058769a70  [vnlru]
   21     0     0     0  RL      (threaded)                  [bufdaemon]
100085                   RunQ                                [bufdaemon]
100088                   D       -       0xffffffff83411f80  [bufspacedaemon-0]
100100                   D       sdflush 0xfffffe00588340e8  [/ worker]
   20     0     0     0  DL      psleep  0xffffffff841bc000  [vmdaemon]
   19     0     0     0  DL      (threaded)                  [pagedaemon]
100083                   D       psleep  0xffffffff841afb38  [dom0]
100089                   D       launds  0xffffffff841afb44  [laundry: dom0]
100090                   D       umarcl  0xffffffff81eb1050  [uma]
   18     0     0     0  DL      -       0xffffffff83e14120  [rand_harvestq]
   17     0     0     0  DL      waiting 0xffffffff84892520  [sctp_iterator]
   16     0     0     0  DL      pftm    0xffffffff84d1c1a0  [pf purge]
   15     0     0     0  DL      -       0xffffffff8417ed00  [soaiod4]
    9     0     0     0  DL      -       0xffffffff8417ed00  [soaiod3]
    8     0     0     0  DL      -       0xffffffff8417ed00  [soaiod2]
    7     0     0     0  DL      -       0xffffffff8417ed00  [soaiod1]
    6     0     0     0  DL      (threaded)                  [cam]
100048                   D       -       0xffffffff83c998c0  [doneq0]
100049                   D       -       0xffffffff83c99840  [async]
100082                   D       -       0xffffffff83c996c0  [scanner]
   14     0     0     0  DL      seqstat 0xfffffe0056abec88  [sequencer 00]
    5     0     0     0  DL      crypto_ 0xfffffe00541c1d80  [crypto returns 1]
    4     0     0     0  DL      crypto_ 0xfffffe00541c1d30  [crypto returns 0]
    3     0     0     0  DL      crypto_ 0xffffffff841a9be0  [crypto]
   13     0     0     0  DL      (threaded)                  [geom]
100039                   D       -       0xffffffff84031000  [g_event]
100040                   D       -       0xffffffff84031040  [g_up]
100041                   D       -       0xffffffff84031080  [g_down]
    2     0     0     0  DL      (threaded)                  [KTLS]
100029                   D       -       0xfffffe00081f6d00  [thr_0]
100030                   D       -       0xfffffe00081f6d80  [thr_1]
100031                   D       -       0xffffffff84180088  [alloc_0]
   12     0     0     0  RL      (threaded)                  [intr]
100011                   I                                   [swi6: task queue]
100012                   I                                   [swi6: Giant taskq]
100014                   I                                   [swi5: fast taskq]
100032                   I                                   [swi1: netisr 0]
100033                   I                                   [swi3: vm]
100034                   Run     CPU 1                       [swi4: clock (0)]
100035                   I                                   [swi4: clock (1)]
100036                   I                                   [swi1: hpts]
100037                   I                                   [swi1: hpts]
100050                   I                                   [irq24: virtio_pci0]
100051                   I                                   [irq25: virtio_pci0]
100052                   I                                   [irq26: virtio_pci0]
100053                   I                                   [irq27: virtio_pci0]
100054                   I                                   [irq28: virtio_pci1]
100055                   I                                   [irq29: virtio_pci1]
100056                   I                                   [irq30: virtio_pci1]
100057                   I                                   [irq31: virtio_pci1]
100058                   I                                   [irq32: virtio_pci1]
100063                   I                                   [irq10: virtio_pci2]
100065                   I                                   [irq1: atkbd0]
100066                   I                                   [irq12: psm0]
100067                   I                                   [swi0: uart uart++]
100075                   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    0xfffffe0053d60538  [init]
   10     0     0     0  DL      audit_w 0xffffffff841aab80  [audit]
    0     0     0     0  DLs     (threaded)                  [kernel]
100000                   D       swapin  0xffffffff84031f00  [swapper]
100005                   D       -       0xfffffe00081f8900  [softirq_0]
100006                   D       -       0xfffffe00081f8700  [softirq_1]
100007                   D       -       0xfffffe00081f8500  [if_io_tqg_0]
100008                   D       -       0xfffffe00081f8300  [if_io_tqg_1]
100009                   D       -       0xfffffe00081f8100  [if_config_tqg_0]
100010                   D       -       0xfffffe0053dfae00  [deferred_unmount ta]
100013                   D       -       0xfffffe0053dfa800  [thread taskq]
100015                   D       -       0xfffffe0053dfa400  [linuxkpi_irq_wq]
100016                   D       -       0xfffffe0053dfa200  [kqueue_ctx taskq]
100017                   D       -       0xfffffe0053dfa000  [pci_hp taskq]
100018                   D       -       0xfffffe0053e04d00  [aiod_kick taskq]
100019                   D       -       0xfffffe0053e04b00  [inm_free taskq]
100020                   D       -       0xfffffe0053e04900  [in6m_free taskq]
100021                   D       -       0xfffffe0053e04700  [linuxkpi_short_wq_0]
100022                   D       -       0xfffffe0053e04700  [linuxkpi_short_wq_1]
100023                   D       -       0xfffffe0053e04700  [linuxkpi_short_wq_2]
100024                   D       -       0xfffffe0053e04700  [linuxkpi_short_wq_3]
100025                   D       -       0xfffffe0053e04200  [linuxkpi_long_wq_0]
100026                   D       -       0xfffffe0053e04200  [linuxkpi_long_wq_1]
100027                   D       -       0xfffffe0053e04200  [linuxkpi_long_wq_2]
100028                   D       -       0xfffffe0053e04200  [linuxkpi_long_wq_3]
100038                   D       -       0xfffffe0053e0e200  [firmware taskq]
100042                   D       -       0xfffffe0054196c00  [crypto_0]
100043                   D       -       0xfffffe0054196c00  [crypto_1]
100059                   D       -       0xfffffe0056eb9b00  [vtnet0 rxq 0]
100060                   D       -       0xfffffe0056eb9a00  [vtnet0 txq 0]
100061                   D       -       0xfffffe0056eb9900  [vtnet0 rxq 1]
100062                   D       -       0xfffffe0056eb9800  [vtnet0 txq 1]
100064                   D       vtbslp  0xfffffe0056fe8600  [virtio_balloon]
100068                   D       -       0xfffffe0057019800  [mca taskq]
100073                   D       -       0xffffffff82c84ce1  [deadlkres]
100077                   D       -       0xfffffe0057405a00  [acpi_task_0]
100078                   D       -       0xfffffe0057405a00  [acpi_task_1]
100079                   D       -       0xfffffe0057405a00  [acpi_task_2]
100081                   D       -       0xfffffe0054196400  [CAM taskq]
db> show all locks
Process 10186 (sh) thread 0xfffffe009e9f2720 (101146)
exclusive sleep mutex process lock (process lock) r = 0 (0xfffffe009ff09128) locked @ /syzkaller/managers/main/kernel/sys/kern/subr_trap.c:118
Process 12 (intr) thread 0xfffffe0053e351e0 (100034)
exclusive rw nd6 DAD queue (nd6 DAD queue) r = 0 (0xfffffe00081defb8) locked @ /syzkaller/managers/main/kernel/sys/kern/kern_rwlock.c:178
db> show malloc
              Type        InUse        MemUse     Requests
           pf_hash            5        11524K            5
            devbuf         4213         4323K         4241
          tcp_hpts            6         3201K            6
         sysctloid        35175         2072K        35246
             vtbuf           24         1968K           46
              kobj          326         1304K          483
            newblk            8         1026K         4158
          vfscache            3         1025K            3
          inodedep          103          551K         3527
               pcb           25          537K         1073
         ufs_quota            1          512K            1
          vfs_hash            1          512K            1
           callout            2          512K            2
          routetbl        14992          479K        50609
              intr            4          472K            4
           subproc          134          250K        10267
            acpica         1674          184K        55237
         vnet_data            1          168K            1
              vmem            3          146K            4
           tidhash            3          141K            3
            linker          355          140K          383
           pagedep            7          130K         3342
        tfo_ccache            1          128K            1
            DEVFS1          108          108K         1256
               sem            4          106K            4
               bus          986           80K         3480
          filedesc           10           73K        10808
          mtx_pool            2           72K            2
          syncache            1           68K            1
          acpitask            1           64K            1
       ddb_capture            1           64K            1
            module          509           64K          509
              umtx          374           47K          374
           kdtrace          212           43K        14013
               BPF           22           36K          725
              temp           35           33K        27817
         hostcache            1           32K            1
               shm            1           32K            1
            DEVFS3          127           32K          514
               msg            4           30K            4
        gtaskqueue           18           26K           18
            dirrem           86           22K         3366
            kbdmux            6           22K            6
        DEVFS_RULE           56           20K           56
            ifaddr           65           18K         3531
         ufs_mount            4           17K            5
              proc            3           17K            3
               tty           16           16K           16
           ithread           99           16K           99
             ifnet            8           15K          384
            bus-sc           34           15K         1691
            KTRACE          100           13K          100
              kenv           95           12K           95
       ether_multi          141           12K        11123
      eventhandler          133           12K          133
           lltable           35           11K         3092
         CAM queue            5           11K         1528
              GEOM           61           10K          487
            ip6ndp           44           10K          836
              rman           84           10K          425
         in6_multi           61            9K         4096
         bmsafemap            2            9K         3487
              UART           12            9K           12
           devstat            4            9K            4
              ksem            1            8K            1
               rpc            2            8K            2
             shmfd            1            8K           73
       pfs_vncache            1            8K            1
         pfs_nodes           20            8K           20
     audit_evclass          237            8K          295
          freefile           53            7K         3321
         taskqueue           63            7K           63
            sglist            5            7K            5
           CAM DEV            3            6K          510
              cred           23            6K          543
            kqueue           57            6K        10268
            plimit           19            5K         3543
       ufs_dirhash           24            5K           24
               UMA          270            5K          270
          pf_ifnet           10            5K         1904
                vt           11            5K           11
           memdesc            1            4K            1
               MCA           32            4K           32
             evdev            4            4K            4
           acpisem           28            4K           28
           pwddesc           55            4K        10188
             hhook           15            4K           17
           session           24            3K          600
          terminal           11            3K           11
            DEVFSP           40            3K         6984
             lockf           23            3K          281
         proc-args           42            3K         7680
           uidinfo            3            3K            9
        local_apic            1            2K            1
           io_apic            1            2K            1
       fpukern_ctx            2            2K            2
         ipsec-saq            2            2K            2
          kcovinfo           32            2K         6477
             selfd           31            2K       108616
            Unitno           29            2K         2309
           CAM XPT           22            2K          543
          sctp_ifa           10            2K          802
       ipsecpolicy            2            2K            2
           acpidev           20            2K           20
            select           10            2K          436
               msi            9            2K            9
             clone            9            2K            9
               tun            7            2K          384
          freework            5            2K         3366
           softdep            1            1K            1
          freeblks            4            1K         3365
            sahead            1            1K            1
          secasvar            1            1K            1
          in_multi            4            1K          387
             nhops            6            1K          194
       vnodemarker            2            1K           40
      NFSD session            1            1K            1
        CAM periph            4            1K          271
             ipsec            3            1K            3
             mkdir            6            1K         6632
               mld            6            1K          383
              igmp            6            1K          383
         toponodes            6            1K            6
            isadev            6            1K            6
             mount           16            1K           89
          pci_link           10            1K           10
            crypto            4            1K            4
 encap_export_host           12            1K           12
          sctp_ifn            4            1K          802
              pfil            4            1K            4
              cdev            2            1K            2
               osd            8            1K           21
         newdirblk            3            1K         3316
            diradd            3            1K         3396
       inpcbpolicy           12            1K         5052
    chacha20random            1            1K            1
      NFSD lckfile            1            1K            1
     NFSD V4client            1            1K            1
             DEVFS            9            1K           10
            vnodes            1            1K            1
           CAM SIM            2            1K            2
              ktls            1            1K            1
          procdesc            2            1K          230
            feeder            7            1K            7
           tcpfunc            3            1K            3
        loginclass            3            1K            6
            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
             xform            2            1K           42
 CAM I/O Scheduler            1            1K            1
          CAM path            4            1K         1034
          pmchooks            1            1K            1
            soname            4            1K         7559
          sctp_vrf            1            1K            1
              vnet            1            1K            1
           entropy            2            1K          461
          acpiintr            1            1K            1
               pmc            1            1K            1
              cpus            2            1K            2
    vnet_data_free            1            1K            1
           Per-cpu            1            1K            1
          filecaps            2            1K          972
          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            0
          chd data            0            0K            0
        cubic data            0            0K            0
        dctcp data            0            0K            0
        vegas data            0            0K            0
         htcp data            0            0K            0
            mqdata            0            0K            0
        sctp_mcore            0            0K            0
        sctp_socko            0            0K            0
         sctp_iter            0            0K         1421
         sctp_mvrf            0            0K            0
         sctp_timw            0            0K            0
         sctp_cpal            0            0K            0
         sctp_cmsg            0            0K            0
         sctp_stre            0            0K            0
         sctp_athi            0            0K            0
         sctp_athm            0            0K            0
         sctp_atky            0            0K            0
         sctp_atcl            0            0K            0
         sctp_a_it            0            0K         1421
         sctp_aadr            0            0K            0
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            statfs            0            0K         2593
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lDevFlags * malloc            0            0K            0
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    8320     984       17643       0     254   38109184        0
              pbuf   2624       0     989           0       0       2    2595136        0
              mbuf    256    8601     969      104450       0     254    2449920        0
        malloc-384    384    4271     539        7696       0      30    1847040        0
          BUF TRIE    144     189   11571        1982       0      62    1693440        0
       malloc-4096   4096     382      14       11249       0       2    1622016        0
        malloc-128    128   11833     133       13664       0     126    1531648        0
       UMA Slabs 0    112   10657      32       10657       0     126    1197168        0
            DEVCTL   1024    1000     100        1679       0       0    1126400        0
      mbuf_cluster   2048     525       1         525       0     254    1077248        0
         vmem btag     56   16730      93       17291       0     254     942088        0
        RADIX NODE    144    4744    1579      602907       0      62     910512        0
         FFS inode   1160     549      74        3871       0       8     722680        0
         malloc-32     32   14987     133       18826       0     254     483840        0
      malloc-65536  65536       6       0           6       0       1     393216        0
            lkpimm    168       1    2327           1       0      62     391104        0
          lkpicurr    168       2    2326           2       0      62     391104        0
         VM OBJECT    264    1053     237      178657       0      30     340560        0
            THREAD   1808     156      31        3824       0       8     338096        0
             VNODE    448     586     116        4287       0      30     314496        0
         malloc-64     64    4442     472       31424       0     254     314496        0
        malloc-256    256     383     757       15535       0      62     291840        0
        256 Bucket   2048     124       6       11458       0       8     266240        0
      malloc-65536  65536       1       3        1201       0       1     262144        0
         malloc-16     16   14749     251       16035       0     254     240000        0
        malloc-256    256      46     734        6931       0      62     199680        0
      malloc-65536  65536       1       2         137       0       1     196608        0
      malloc-16384  16384       4       8        5213       0       1     196608        0
         UMA Zones    768     242       2         242       0      16     187392        0
         malloc-32     32    5598     198        6383       0     254     185472        0
       FFS2 dinode    256     549     126        3870       0      62     172800        0
        malloc-256    256     130     545        7227       0      62     172800        0
        malloc-128    128    1207      95       32413       0     126     166656        0
         MAP ENTRY     96    1085     637      622437       0     126     165312        0
       malloc-1024   1024     133      19        1281       0      16     155648        0
        malloc-128    128    1108      39       12404       0     126     146816        0
       S VFS Cache    104    1018     347        6529       0     126     141960        0
       mbuf_packet    256       7     518        7298       0     254     134400        0
          ksiginfo    112      64     980       10238       0     126     116928        0
           VMSPACE   2544      27      18       10161       0       4     114480        0
              PROC   1336      54      24       10187       0       8     104208        0
      malloc-32768  32768       1       2         131       0       1      98304        0
         64 Bucket    512     118      58      121173       0      30      90112        0
         filedesc0   1072      55      29       10188       0       8      90048        0
          UMA Kegs    384     227       6         227       0      30      89472        0
        malloc-128    128      83     599        3734       0     126      87296        0
        128 Bucket   1024      51      32        1146       0      16      84992        0
            socket    960      25      63       10164       0     254      84480        0
       malloc-8192   8192       9       1         110       0       1      81920        0
       malloc-8192   8192       8       1          10       0       1      73728        0
       malloc-4096   4096       9       8         149       0       2      69632        0
             g_bio    408       0     170       13538       0      30      69360        0
      malloc-65536  65536       1       0           1       0       1      65536        0
      malloc-65536  65536       0       1           8       0       1      65536        0
       malloc-4096   4096      14       1          27       0       2      61440        0
       malloc-2048   2048      13      17        2640       0       8      61440        0
         32 Bucket    256      77     133      312204       0      62      53760        0
      malloc-16384  16384       3       0           3       0       1      49152        0
      malloc-16384  16384       2       1          17       0       1      49152        0
      malloc-16384  16384       1       2         161       0       1      49152        0
       malloc-8192   8192       4       2          32       0       1      49152        0
       malloc-2048   2048       2      22         575       0       8      49152        0
        malloc-256    256      48     132        6534       0      62      46080        0
       malloc-2048   2048       3      19        2365       0       8      45056        0
       malloc-1024   1024      10      34       14845       0      16      45056        0
            pcpu-8      8    4653     979       67054       0     254      45056        0
         malloc-64     64     517     176        2217       0     254      44352        0
         malloc-64     64     134     559        7902       0     254      44352        0
            clpbuf   2624       0      16          25       0      16      41984        0
             NAMEI   1024       0      40      137288       0      16      40960        0
       malloc-4096   4096       4       6         384       0       2      40960        0
         malloc-64     64      76     554      180252       0     254      40320        0
        malloc-384    384      82      18        3848       0      30      38400        0
        malloc-256    256      56      94       12555       0      62      38400        0
              pipe    744      14      36        4037       0      16      37200        0
           DIRHASH   1024      34       2          34       0      16      36864        0
       malloc-4096   4096       8       1          10       0       2      36864        0
             Files     80     143     307       86508       0     126      36000        0
        malloc-128    128      61     218         416       0     126      35712        0
        malloc-384    384      51      39        1256       0      30      34560        0
        malloc-256    256      54      81        8052       0      62      34560        0
            da_ccb    544       0      63        3509       0      16      34272        0
      malloc-32768  32768       1       0           1       0       1      32768        0
      malloc-32768  32768       1       0           1       0       1      32768        0
       malloc-4096   4096       3       5        3228       0       2      32768        0
           pcpu-64     64     487      25         487       0     254      32768        0
         malloc-64     64      98     406       11171       0     254      32256        0
        malloc-128    128      75     173        8584       0     126      31744        0
        malloc-384    384      22      58        1571       0      30      30720        0
         TURNSTILE    136     188      22         188       0      62      28560        0
             KNOTE    160      17     158       42445       0      62      28000        0
         udp_inpcb    496       6      50        4173       0     254      27776        0
    ertt_txseginfo     40       0     606        4097       0     254      24240        0
         malloc-64     64     224     154        1034       0     254      24192        0
         16 Bucket    144      51     117         402       0      62      24192        0
            ttyinq    160     135      15         300       0      62      24000        0
           ttyoutq    256      72      18         160       0      62      23040        0
        malloc-256    256      25      65       13670       0      62      23040        0
               PWD     32      14     616        3444       0     254      20160        0
        malloc-128    128      45     110       15949       0     126      19840        0
        SLEEPQUEUE     88     188      36         188       0     126      19712        0
       Mountpoints   2752       2       5           2       0       4      19264        0
     routing nhops    256      20      55        1622       0      62      19200        0
             unpcb    256      11      64        4189       0     254      19200        0
        malloc-256    256      45      30        1063       0      62      19200        0
      malloc-16384  16384       1       0           1       0       1      16384        0
      malloc-16384  16384       1       0           1       0       1      16384        0
       malloc-2048   2048       8       0           8       0       8      16384        0
       malloc-1024   1024       2      14         374       0      16      16384        0
       malloc-1024   1024       8       8          84       0      16      16384        0
        malloc-512    512       6      26         122       0      30      16384        0
        malloc-512    512       0      32         131       0      30      16384        0
           rtentry    176      23      69        1622       0      62      16192        0
         malloc-64     64      54     198        4372       0     254      16128        0
         malloc-32     32      88     416         634       0     254      16128        0
      vtnet_tx_hdr     24       0     668        6234       0     254      16032        0
          8 Bucket     80      51     149        1123       0     126      16000        0
        malloc-384    384      22      18         362       0      30      15360        0
             tcpcb   1080       4      10          10       0     254      15120        0
       malloc-2048   2048       3       3         194       0       8      12288        0
       malloc-2048   2048       2       4           4       0       8      12288        0
       malloc-1024   1024       8       4         221       0      16      12288        0
       malloc-1024   1024       7       5           7       0      16      12288        0
         malloc-64     64      51     138       10485       0     254      12096        0
         malloc-32     32      51     327       13209       0     254      12096        0
         malloc-32     32      81     297       14305       0     254      12096        0
         malloc-16     16     287     463       25430       0     254      12000        0
             ripcb    496       2      22         869       0     254      11904        0
               AIO    208       1      56         724       0      62      11856        0
              kenv    258      15      30        1304       0      30      11610        0
       malloc-8192   8192       1       0           1       0       1       8192        0
       malloc-8192   8192       1       0           1       0       1       8192        0
       malloc-8192   8192       1       0           1       0       1       8192        0
       malloc-8192   8192       1       0           1       0       1       8192        0
       malloc-4096   4096       0       2           4       0       2       8192        0
       malloc-2048   2048       3       1           3       0       8       8192        0
       malloc-2048   2048       3       1           3       0       8       8192        0
        malloc-512    512       5      11         102       0      30       8192        0
        malloc-512    512       8       8           8       0      30       8192        0
              PGRP     88      24      68         600       0     126       8096        0
          rl_entry     40      54     148          54       0     254       8080        0
        sctp_laddr     48       0     168        1591       0     254       8064        0
             udpcb     32       6     246        4173       0     254       8064        0
              ertt     72       4     108          10       0     126       8064        0
         malloc-32     32      51     201        2184       0     254       8064        0
         malloc-32     32      36     216        2060       0     254       8064        0
         malloc-32     32      17     235          30       0     254       8064        0
          4 Bucket     48       8     160         249       0     254       8064        0
          2 Bucket     32      63     189        1534       0     254       8064        0
         malloc-16     16       0     500           7       0     254       8000        0
         malloc-16     16      25     475        1243       0     254       8000        0
         malloc-16     16      57     443        6560       0     254       8000        0
         malloc-16     16      12     488        1828       0     254       8000        0
         malloc-16     16      40     460         553       0     254       8000        0
         malloc-16     16       4     496           6       0     254       8000        0
         tcp_inpcb    496       4      12          10       0     254       7936        0
        malloc-128    128      37      25         677       0     126       7936        0
             AIOCB    552       0      14         725       0      16       7728        0
     FPU_save_area    832       1       8           1       0      16       7488        0
            cpuset    104       8      54           8       0     126       6448        0
 epoch_record pcpu    256       4      12           4       0      62       4096        0
       malloc-4096   4096       0       1           1       0       2       4096        0
       malloc-1024   1024       1       3           1       0      16       4096        0
       malloc-1024   1024       1       3           1       0      16       4096        0
        malloc-512    512       0       8           1       0      30       4096        0
        malloc-512    512       5       3           5       0      30       4096        0
        malloc-512    512       0       8           1       0      30       4096        0
           pcpu-16     16       7     249           7       0     254       4096        0
         hostcache     64       1      62           1       0     254       4032        0
          syncache    168       0      24           4       0     254       4032        0
              AIOP     32       4     122           4       0     254       4032        0
       UMA Slabs 1    176      10      12          10       0      62       3872        0
        malloc-384    384       0      10           1       0      30       3840        0
        malloc-384    384       2       8           2       0      30       3840        0
        malloc-384    384       1       9           1       0      30       3840        0
            mqnode    416       3       6           3       0      30       3744        0
        KMAP ENTRY     96      12      27          14       0       0       3744        0
              vmem   1856       1       1           1       0       8       3712        0
           SMR CPU     32       3      60           3       0     254       2016        0
        SMR SHARED     24       3      60           3       0     254       1512        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
   sctp_asconf_ack     48       0       0           0       0     254          0        0
       sctp_asconf     40       0       0           0       0     254          0        0
sctp_stream_msg_out    112       0       0           0       0     254          0        0
        sctp_readq    152       0       0           0       0     254          0        0
        sctp_chunk    152       0       0           0       0     254          0        0
        sctp_raddr    736       0       0           0       0     254          0        0
         sctp_asoc   2288       0       0           0       0     254          0        0
           sctp_ep   1272       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    312       0       0           0       0     254          0        0
           pf tags    104       0       0           0       0     126          0        0
          pf mtags     48       0       0           0       0     254          0        0
       tcp_bbr_pcb    832       0       0           0       0      16          0        0
       tcp_bbr_map    128       0       0           0       0     126          0        0
      tcp_rack_pcb    832       0       0           0       0      16          0        0
      tcp_rack_map    112       0       0           0       0     126          0        0
     udplite_inpcb    496       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
           tcp_log    416       0       0           0       0     254          0        0
          tcpreass     48       0       0           0       0     254          0        0
tfo_ccache_entries     80       0       0           0       0     126          0        0
               tfo      4       0       0           0       0     254          0        0
          sackhole     32       0       0           0       0     254          0        0
             tcptw     88       0       0           0       0     254          0        0
               ipq     56       0       0           0       0     254          0        0
    IPsec SA lft_c     16       0       0           0       0     254          0        0
            itimer    352       0       0           0       0      30          0        0
            AIOLIO    272       0       0           0       0      30          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    592       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     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
         domainset     40       0       0           0       0     254          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-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-8192   8192       0       0           0       0       1          0        0
        malloc-512    512       0       0           0       0      30          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 (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2021/09/20 18:58 freebsd-src 9ac518adf03e 3d9c9a2a console log report ci-freebsd-main Fatal trap NUM: page fault in nd6_dad_timer
* Struck through repros no longer work on HEAD.