syzbot


Fatal trap NUM: page fault in mld_change_state

Status: upstream: reported on 2025/03/01 23:46
Reported-by: syzbot+0375ef1e774d247be26e@syzkaller.appspotmail.com
First crash: 240d, last: 1d11h

Sample crash report:
Fatal trap 12: page fault while in kernel mode
cpuid = 1; apic id = 01
fault virtual address	= 0x28
fault code		= supervisor read data, page not present
instruction pointer	= 0x20:0xffffffff81aea6ce
stack pointer	        = 0x28:0xfffffe0056ec1240
frame pointer	        = 0x28:0xfffffe0056ec13d0
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		= 1044 (syz-executor)
rdi: 0000000000000028 rsi: 0000000000000000 rdx: 0000000000000000
rcx: fffffe0002bf1850  r8: 0000000000000000  r9: 0000000000000001
rax: fffffe0000000000 rbx: 1fffffc00add8250 rbp: fffffe0056ec13d0
r10: 0000000000000000 r11: 000000000000001f r12: fffffe00585a2a10
r13: dffff7c000000000 r14: 0000000000000000 r15: fffffe00077f4000
trap number		= 12
panic: page fault
cpuid = 1
time = 1761481875
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0xc6/frame 0xfffffe0056ec0a70
kdb_backtrace() at kdb_backtrace+0xd0/frame 0xfffffe0056ec0bd0
vpanic() at vpanic+0x257/frame 0xfffffe0056ec0d90
panic() at panic+0xb5/frame 0xfffffe0056ec0e50
trap_pfault() at trap_pfault+0xaf2/frame 0xfffffe0056ec0f90
trap() at trap+0x784/frame 0xfffffe0056ec1170
calltrap() at calltrap+0x8/frame 0xfffffe0056ec1170
--- trap 0xc, rip = 0xffffffff81aea6ce, rsp = 0xfffffe0056ec1240, rbp = 0xfffffe0056ec13d0 ---
mld_change_state() at mld_change_state+0x13e/frame 0xfffffe0056ec13d0
in6_leavegroup_locked() at in6_leavegroup_locked+0x17b/frame 0xfffffe0056ec1500
ip6_freemoptions() at ip6_freemoptions+0x282/frame 0xfffffe0056ec1560
in_pcbfree() at in_pcbfree+0x682/frame 0xfffffe0056ec15b0
sorele_locked() at sorele_locked+0x264/frame 0xfffffe0056ec15f0
soclose() at soclose+0x41f/frame 0xfffffe0056ec16e0
_fdrop() at _fdrop+0x5c/frame 0xfffffe0056ec1710
closef() at closef+0x655/frame 0xfffffe0056ec18f0
fdescfree() at fdescfree+0xa5e/frame 0xfffffe0056ec1ad0
fork1() at fork1+0x833/frame 0xfffffe0056ec1bf0
sys_rfork() at sys_rfork+0x1b7/frame 0xfffffe0056ec1d10
amd64_syscall() at amd64_syscall+0x4e2/frame 0xfffffe0056ec1f30
fast_syscall_common() at fast_syscall_common+0xf8/frame 0xfffffe0056ec1f30
--- syscall (198, FreeBSD ELF64, __syscall), rip = 0x3a6e9a, rsp = 0x824037f08, rbp = 0x824037f80 ---
KDB: enter: panic
[ thread pid 1044 tid 100350 ]
Stopped at      kdb_enter+0x6e: movq    $0,0x258b3c7(%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         0xfffffe0002bf1850
rdx                          0
rbx         0xffffffff82822620  .str.27
rsp         0xfffffe0056ec0bb0
rbp         0xfffffe0056ec0bd0
rsi                          0
rdi         0xffffffff816593e9  printf+0x149
r8                           0
r9                  0xffffffff
r10                          0
r11                       0x17
r12         0xfffffe0054115000
r13         0xfffffffffffffffd
r14         0xffffffff82822620  .str.27
r15                          0
rip         0xffffffff816427ce  kdb_enter+0x6e
rflags                    0x46
kdb_enter+0x6e: movq    $0,0x258b3c7(%rip)
db> show proc
Process 1044 (syz-executor) at 0xfffffe0054121ab0:
 state: NORMAL
 uid: 0 gid: 0 supp gids: 0, 5
 parent: pid 764 at 0xfffffe005400c010
 ABI: FreeBSD ELF64
 flag: 0x10480080  flag2: 0
 arguments: ./syz-executor exec
 reaper: 0xfffffe0007809010 reapsubtree: 1
 sigparent: 20
 vmspace: 0xfffffe0054154920
   (map 0xfffffe0054154920)
   (map.pmap 0xfffffe00541549c0)
   (pmap 0xfffffe0054154a30)
 threads: 4
100157                   s                                   syz-executor
100350                   Run     CPU 1                       syz-executor
100352                   s                                   syz-executor
100353                   s                                   syz-executor
db> ps
  pid  ppid  pgrp   uid  state   wmesg   wchan               cmd
 1049   780   423     0  S       nanslp  0xffffffff83baec40  sleep
 1045  1043  1019     0  S       uwait   0xfffffe006e708280  syz-executor
 1044   764   764     0  T       (threaded)                  syz-executor
100157                   s                                   syz-executor
100350                   Run     CPU 1                       syz-executor
100352                   s                                   syz-executor
100353                   s                                   syz-executor
 1043  1042  1019     0  SV      wait    0xfffffe0054123010  syz-executor
 1042  1019  1019     0  T       (threaded)                  syz-executor
100318                   s                                   syz-executor
100347                   D       ppwait  0xfffffe0054123510  syz-executor
100354                   s                                   syz-executor
 1040   766   766     0  R       (threaded)                  syz-executor
100240                   RunQ                                syz-executor
100345                   S       lthr    0xfffffe0054111780  syz-executor
100349                   S       aiowc   0xfffffe00540fe8e8  syz-executor
100355                   S       uwait   0xfffffe006e6fb080  syz-executor
 1037     1   760     0  S       uwait   0xfffffe006e6fbe00  syz-executor
 1033   762  1033     0  L      *mld_mtx 0xfffffe000782d540  syz-executor
 1027     1   766 60929  S       uwait   0xfffffe006e6fac00  syz-executor
 1026     1   766 60929  S       uwait   0xfffffe0058157380  syz-executor
 1025     1   766     0  S       uwait   0xfffffe0007779180  syz-executor
 1019   762  1019     0  R                                   syz-executor
 1012     1   764     0  S       uwait   0xfffffe005851a680  syz-executor
 1009     1   763     0  S       uwait   0xfffffe0058157900  syz-executor
 1008     1   764     0  S       uwait   0xfffffe006e709400  syz-executor
 1007     1   766     0  S       uwait   0xfffffe0058154380  syz-executor
 1000     1   764     0  S       uwait   0xfffffe0058519680  syz-executor
  984     1   766     0  S       uwait   0xfffffe006e708e80  syz-executor
  975     0     0     0  DL      -       0xffffffff83ccee00  [soaiod4]
  974     0     0     0  DL      -       0xffffffff83ccee00  [soaiod3]
  973     0     0     0  DL      -       0xffffffff83ccee00  [soaiod2]
  972     0     0     0  DL      -       0xffffffff83ccee00  [soaiod1]
  969   968   764     0  S       uwait   0xfffffe0058519780  syz-executor
  968     1   764     0  SV      wait    0xfffffe005413fac0  syz-executor
  965     1   766     0  S       uwait   0xfffffe0058157280  syz-executor
  956     1   764     0  S       uwait   0xfffffe0058157700  syz-executor
  949     1   764     0  S       uwait   0xfffffe006e6fbd80  syz-executor
  948     0     0     0  DL      (threaded)                  [so_splice]
100165                   D       -       0xfffffe005864ed00  [thr_0]
100255                   D       -       0xfffffe005864ed40  [thr_1]
  911     1   763     0  S       uwait   0xfffffe0058157680  syz-executor
  907     1   763     0  S       uwait   0xfffffe006e6fb300  syz-executor
  904     0     0     0  DL      mdwait  0xfffffe0077def000  [md32]
  903     1   763     0  S       uwait   0xfffffe0058154680  syz-executor
  898     1   764     0  S       uwait   0xfffffe006e709b00  syz-executor
  896     1   764     0  S       uwait   0xfffffe006e6faa00  syz-executor
  893     1   763     0  S       uwait   0xfffffe006e6fc180  syz-executor
  891     0     0     0  DL      (threaded)                  [KTLS]
100116                   D       -       0xfffffe005971eb00  [thr_0]
100186                   D       -       0xfffffe005971eb80  [thr_1]
100187                   D       -       0xffffffff83cd0628  [reclaim_0]
  890     0     0     0  DL      mdwait  0xfffffe00083f1000  [md0]
  887     1   766     0  T       uwait   0xfffffe006e6faf00  syz-executor
  884     1   766     0  S       uwait   0xfffffe006e6fb800  syz-executor
  875     1   763     0  S       uwait   0xfffffe006e6fb700  syz-executor
  829     1   764     0  S       uwait   0xfffffe006e6fb500  syz-executor
  823     1   760     0  S       uwait   0xfffffe006e709800  syz-executor
  819     1   763     0  S       uwait   0xfffffe0058157480  syz-executor
  812     1   764     0  S       uwait   0xfffffe0058519b80  syz-executor
  808     0     0     0  DL      aiordy  0xfffffe0054107568  [aiod4]
  806     0     0     0  DL      aiordy  0xfffffe0054107ac0  [aiod3]
  805     0     0     0  DL      aiordy  0xfffffe00540c7ac0  [aiod2]
  804     0     0     0  DL      aiordy  0xfffffe00540c7568  [aiod1]
  780   770   423     0  S       wait    0xfffffe00540fd000  sh
  770   423   423     0  S       wait    0xfffffe0054100570  sh
  766   762   766     0  R                                   syz-executor
  764   762   764     0  R                                   syz-executor
  762     1   760     0  RE      CPU 0                       syz-executor
  758   681   758     0  Rs                                  sshd
  747     1   747     0  Rs+                                 getty
  746     1   746     0  Ss+     ttyin   0xfffffe00594d68b0  getty
  745     1   745     0  Ss+     ttyin   0xfffffe00594d70b0  getty
  744     1   744     0  Ss+     ttyin   0xfffffe00594d78b0  getty
  743     1   743     0  Ss+     ttyin   0xfffffe0053f790b0  getty
  742     1   742     0  Ss+     ttyin   0xfffffe0053f798b0  getty
  741     1   741     0  Ss+     ttyin   0xfffffe0053f7a0b0  getty
  740     1   740     0  Ss+     ttyin   0xfffffe0053f7a8b0  getty
  739     1   739     0  Ss+     ttyin   0xfffffe0053f7b0b0  getty
  737   735    17     0  S+      nanslp  0xffffffff83baec40  sleep
  736     1    17     0  S+      piperd  0xfffffe005987f420  logger
  735     1    17     0  S+      wait    0xfffffe005400bab8  sh
  685     1   685     0  Ss      nanslp  0xffffffff83baec41  cron
  681     1   681     0  Ss      select  0xfffffe0059721740  sshd
  494     1   494     0  Ss      select  0xfffffe006dc18dc0  syslogd
  423     1   423     0  Ss      wait    0xfffffe00540c7010  devd
  422     1   422    65  Ss      select  0xfffffe006dc18b40  dhclient
  337     1   337     0  Ss      select  0xfffffe006dc18bc0  dhclient
  334     1   334     0  Ss      select  0xfffffe0059721a40  dhclient
   16     0     0     0  DL      syncer  0xffffffff83cdc820  [syncer]
   15     0     0     0  DL      vlruwt  0xfffffe0054002558  [vnlru]
   14     0     0     0  DL      (threaded)                  [bufdaemon]
100079                   D       psleep  0xffffffff83cdad60  [bufdaemon]
100082                   D       -       0xffffffff83001ec0  [bufspacedaemon-0]
100095                   D       sdflush 0xfffffe00586444e8  [/ worker]
    9     0     0     0  DL      psleep  0xffffffff83d1bc40  [vmdaemon]
    8     0     0     0  DL      (threaded)                  [pagedaemon]
100077                   D       psleep  0xffffffff83d01d08  [dom0]
100080                   D       launds  0xffffffff83d01d14  [laundry: dom0]
100081                   D       umarcl  0xffffffff81e2ad90  [uma]
    7     0     0     0  DL      -       0xffffffff839275f8  [rand_harvestq]
    6     0     0     0  DL      pftm    0xffffffff84862f60  [pf purge]
    5     0     0     0  DL      waiting 0xffffffff84640700  [sctp_iterator]
    4     0     0     0  DL      (threaded)                  [cam]
100045                   D       -       0xffffffff838f1340  [doneq0]
100046                   D       -       0xffffffff838f12c0  [async]
100075                   D       -       0xffffffff838f1140  [scanner]
    3     0     0     0  DL      (threaded)                  [crypto]
100042                   D       crypto_ 0xffffffff83cfd5e0  [crypto]
100043                   D       crypto_ 0xfffffe0007a95330  [crypto returns 0]
100044                   D       crypto_ 0xfffffe0007a95380  [crypto returns 1]
   13     0     0     0  DL      (threaded)                  [geom]
100037                   D       -       0xffffffff83b57640  [g_event]
100038                   D       -       0xffffffff83b57660  [g_up]
100039                   D       -       0xffffffff83b57680  [g_down]
    2     0     0     0  LL      (threaded)                  [clock]
100031                   L      *in6_mul 0xfffffe0007805a80  [clock (0)]
100032                   I                                   [clock (1)]
   12     0     0     0  WL      (threaded)                  [intr]
100013                   I                                   [swi6: task queue]
100014                   I                                   [swi6: Giant taskq]
100016                   I                                   [swi5: fast taskq]
100033                   I                                   [swi1: netisr 0]
100034                   I                                   [swi1: hpts]
100035                   I                                   [swi1: hpts]
100047                   I                                   [irq24: virtio_pci0]
100048                   I                                   [irq25: virtio_pci0]
100049                   I                                   [irq26: virtio_pci0]
100050                   I                                   [irq27: virtio_pci0]
100051                   I                                   [irq28: virtio_pci1]
100052                   I                                   [irq29: virtio_pci1]
100053                   I                                   [irq30: virtio_pci1]
100054                   I                                   [irq31: virtio_pci1]
100055                   I                                   [irq32: virtio_pci1]
100060                   I                                   [irq10: virtio_pci2]
100062                   I                                   [irq1: atkbd0]
100063                   I                                   [irq12: psm0]
100064                   I                                   [swi0: uart uart++]
100068                   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    0xfffffe0007809010  [init]
   10     0     0     0  DL      audit_w 0xffffffff83cfe080  [audit]
    0     0     0     0  DLs     (threaded)                  [kernel]
100000                   D       parked  0xffffffff84c51ff0  [swapper]
100005                   D       -       0xfffffe0053e24700  [softirq_0]
100006                   D       -       0xfffffe0053e24600  [softirq_1]
100007                   D       -       0xfffffe0053e24500  [if_io_tqg_0]
100008                   D       -       0xfffffe0053e24400  [if_io_tqg_1]
100009                   D       -       0xfffffe0053e24300  [if_config_tqg_0]
100010                   D       -       0xfffffe000777d500  [kqueue_ctx taskq]
100011                   D       -       0xfffffe000777d400  [jail_remove taskq]
100012                   D       -       0xfffffe000777d300  [bus taskq]
100015                   D       -       0xfffffe000777d000  [thread taskq]
100017                   D       -       0xfffffe000777cd00  [aiod_kick taskq]
100018                   D       -       0xfffffe000777cc00  [deferred_unmount ta]
100019                   D       -       0xfffffe000777cb00  [inm_free taskq]
100020                   D       -       0xfffffe000777ca00  [in6m_free taskq]
100021                   D       -       0xfffffe000777c900  [linuxkpi_irq_wq]
100022                   D       -       0xfffffe000777c800  [linuxkpi_short_wq_0]
100023                   D       -       0xfffffe000777c800  [linuxkpi_short_wq_1]
100024                   D       -       0xfffffe000777c800  [linuxkpi_short_wq_2]
100025                   D       -       0xfffffe000777c800  [linuxkpi_short_wq_3]
100026                   D       -       0xfffffe000777c700  [linuxkpi_long_wq_0]
100027                   D       -       0xfffffe000777c700  [linuxkpi_long_wq_1]
100028                   D       -       0xfffffe000777c700  [linuxkpi_long_wq_2]
100029                   D       -       0xfffffe000777c700  [linuxkpi_long_wq_3]
100036                   D       -       0xfffffe000777c600  [firmware taskq]
100040                   D       -       0xfffffe000777c400  [crypto_0]
100041                   D       -       0xfffffe000777c400  [crypto_1]
100056                   D       -       0xfffffe000777c000  [vtnet0 rxq 0]
100057                   D       -       0xfffffe000777be00  [vtnet0 txq 0]
100058                   D       -       0xfffffe000777bd00  [vtnet0 rxq 1]
100059                   D       -       0xfffffe000777bc00  [vtnet0 txq 1]
100061                   D       vtbslp  0xfffffe0057d90f00  [virtio_balloon]
100065                   D       -       0xffffffff82826d00  [deadlkres]
100069                   D       -       0xfffffe0059418a00  [acpi_task_0]
100070                   D       -       0xfffffe0059418a00  [acpi_task_1]
100071                   D       -       0xfffffe0059418a00  [acpi_task_2]
100073                   D       -       0xfffffe000777d600  [mca taskq]
100074                   D       -       0xfffffe000777c300  [CAM taskq]
100076                   D       -       0xfffffe000777bb00  [ipsec_offload]
db> show all locks
Process 1044 (syz-executor) thread 0xfffffe0054115000 (100350)
exclusive sleep mutex mld_mtx (mld_mtx) r = 0 (0xffffffff83cf8d00) locked @ /syzkaller/managers/main/kernel/sys/netinet6/mld6.c:1901
exclusive sleep mutex in6_multi_list_mtx (in6_multi_list_mtx) r = 0 (0xffffffff83cf8b20) locked @ /syzkaller/managers/main/kernel/sys/netinet6/in6_mcast.c:1387
exclusive sx in6_multi_sx (in6_multi_sx) r = 0 (0xffffffff83cf8b60) locked @ /syzkaller/managers/main/kernel/sys/netinet6/in6_mcast.c:1330
Process 1033 (syz-executor) thread 0xfffffe005414d000 (100329)
shared lockmgr devfs (devfs) r = 0 (0xfffffe005968f908) locked @ /syzkaller/managers/main/kernel/sys/fs/devfs/devfs_vnops.c:386
Process 762 (syz-executor) thread 0xfffffe00540d8780 (100108)
exclusive sleep mutex pipe mutex (pipe mutex) r = 0 (0xfffffe005988f110) locked @ /syzkaller/managers/main/kernel/sys/kern/sys_pipe.c:1718
Process 2 (clock) thread 0xfffffe000781a780 (100031)
shared rw vnet_rwlock (vnet_rwlock) r = 0 (0xffffffff83ce0de0) locked @ /syzkaller/managers/main/kernel/sys/netinet6/mld6.c:1307
db> show malloc
              Type        InUse        MemUse     Requests
           pf_hash            6        12804K            6
            linker          408         5590K          542
          tcp_hpts            8         4865K            8
            devbuf         4187         4324K         4214
         sysctloid        35496         2092K        35571
             vtbuf           24         1968K           46
              kobj          331         1324K          513
            newblk           53         1037K         1121
          vfscache            3         1025K            3
               pcb           34          676K          307
          filedesc           74          586K          420
          inodedep           47          530K          319
         ufs_quota            1          512K            1
          vfs_hash            1          512K            1
           callout            2          512K            2
              intr            4          472K            4
           subproc          201          402K         1163
              vmem            5          272K            8
         vnet_data            2          224K            2
          acpitask            1          224K            1
            KTRACE          100          200K          100
            acpica         1674          184K        54444
           tidhash            3          141K            3
           pagedep           33          136K          154
        tfo_ccache            1          128K            1
          IP reass            1          128K            1
            DEVFS1          109          109K          149
               sem            4          106K            4
        gtaskqueue           18           98K           18
               LRO           34           97K           48
               bus         1000           82K         5086
          mtx_pool            3           74K            3
          syncache            1           68K            1
     NFSD srvcache            3           68K            3
        md_sectors           17           68K           17
            module          524           66K          524
       ddb_capture            1           64K            1
           kdtrace          265           50K         1410
              umtx          352           44K          352
               shm            3           36K            7
         hostcache            1           32K            1
            DEVFS3          127           32K          144
               msg            4           30K            4
            kbdmux            6           28K            6
          routetbl          451           26K         1333
              temp           34           21K         2278
        DEVFS_RULE           56           20K           56
            ifaddr           72           20K          137
               BPF           14           19K           25
         ufs_mount            4           17K            5
              proc            3           17K            3
               tty           16           16K           16
           ithread           90           15K           90
            bus-sc           34           15K         1657
             ifnet            8           15K           15
           lltable           45           14K          102
      eventhandler          163           14K          163
       ether_multi          162           13K          373
              GEOM           59           13K          483
              kenv           95           12K           95
              cred           28           11K          209
         CAM queue            5           11K         1528
              rman           82           10K          437
             shmfd            4           10K           37
               rpc            8            9K            8
         in6_multi           66            9K          137
           md_disk           19            9K           20
         bmsafemap            2            9K          271
            plimit           22            9K          376
           devstat            4            9K            4
              UART           12            9K           12
              ksem            1            8K            1
       pfs_vncache            1            8K            1
     audit_evclass          240            8K          306
         taskqueue           69            8K           78
            sglist            6            7K            6
          pf_ifnet           17            6K           55
           CAM DEV            3            6K          510
            kqueue           95            6K         1160
           pwddesc           89            6K         1059
         pfs_nodes           22            6K           22
       ufs_dirhash           24            5K           30
               UMA          272            5K          272
                vt           11            5K           11
           memdesc            1            4K            1
               MCA           32            4K           32
             evdev            4            4K            4
           acpisem           28            4K           28
            DEVFSP           54            4K          179
         newdirblk           26            4K          131
         proc-args          108            3K         2270
            diradd           23            3K          245
          kcovinfo           45            3K          108
             mkdir           22            3K          262
          terminal           11            3K           11
            dirrem           10            3K          206
           uidinfo            5            3K           17
           session           20            3K           43
           acpidev           20            3K           20
             hhook            8            3K           10
             clone            9            3K            9
           netlink            2            3K          207
        local_apic            1            2K            1
           io_apic            1            2K            1
         ipsec-saq            2            2K            2
             lockf           19            2K          133
            ip6ndp           13            2K           29
               tun            5            2K           12
          in_multi            7            2K           16
            Unitno           30            2K          104
          sctp_ifa           13            2K           28
           CAM XPT           22            2K          543
         toponodes            6            2K            6
       ipsecpolicy            2            2K            2
            CC Mem           10            2K           69
         sctp_atcl            3            2K           90
               msi            9            2K            9
             selfd           17            2K        44758
           softdep            1            1K            1
            sahead            1            1K            1
          secasvar            1            1K            1
             nhops            6            1K            8
       vnodemarker            2            1K           24
      NFSD session            1            1K            1
             mount           19            1K          302
               mld            7            1K           14
            select            7            1K           38
        CAM periph            4            1K          271
       inpcbpolicy           27            1K          420
          sctp_ifn            6            1K           28
             ipsec            3            1K            3
          freefile            6            1K          152
          indirdep            3            1K          277
              igmp            6            1K           13
              pfil            6            1K            6
            isadev            6            1K            6
          pci_link           10            1K           10
               osd           15            1K           86
            crypto            4            1K           14
 encap_export_host           12            1K           12
          freework            3            1K          222
          freeblks            2            1K          131
              cdev            2            1K            2
       lkpikmalloc            8            1K            9
        ip_msource            7            1K            9
      counter_rate           13            1K           13
    chacha20random            1            1K            1
            biobuf            1            1K            1
         sctp_timw            1            1K            1
            vnodes            1            1K            2
              ktls            1            1K            6
      NFSD lckfile            1            1K            1
     NFSD V4client            1            1K            1
             DEVFS            9            1K           10
           CAM SIM            2            1K            2
            feeder            7            1K            7
          filecaps            7            1K           81
         cryptodev            3            1K          167
       in6_mfilter            3            1K            7
           tcpfunc            3            1K            3
       ip_moptions            3            1K           10
        loginclass            3            1K            5
            prison            6            1K            6
        in_mfilter            3            1K           15
          nexusdev            8            1K            8
            apmdev            1            1K            1
          atkbddev            2            1K            2
           VN POLL            1            1K            3
               aio            4            1K            6
          procdesc            1            1K           10
          pmchooks            1            1K            1
          CAM path            4            1K         1034
     CAM dev queue            2            1K            2
 CAM I/O Scheduler            1            1K            1
            soname            4            1K         3398
         sctp_atky            3            1K           91
          sctp_vrf            1            1K            1
      ip6_moptions            2            1K            4
              vnet            1            1K            1
               pmc            1            1K            1
filedesc_to_leader            1            1K            3
           entropy            2            1K           41
          acpiintr            1            1K            1
         sctp_athm            3            1K           90
              cpus            2            1K            2
    vnet_data_free            1            1K            1
           Per-cpu            1            1K            1
          p1003.1b            1            1K            1
        ext2_mount            0            0K            0
         ext2_node            0            0K            0
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          pf_table            0            0K            0
                pf            0            0K            0
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     pf_krule_item            0            0K            0
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        sctp_socko            0            0K            7
         sctp_iter            0            0K           34
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         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           34
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          sctp_map            0            0K            2
            mqdata            0            0K            0
            ipcomp            0            0K            0
               esp            0            0K            0
                ah            0            0K            0
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               ixl            0            0K            0
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             axgbe            0            0K            0
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          savedino            0            0K          184
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          freefrag            0            0K           20
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        MLX5EEPROM            0            0K            0
        MLX5EEPROM            0            0K            0
        MLX5EEPROM            0            0K            0
        MLX5EEPROM            0            0K            0
      MLX5E_TLS_RX            0            0K            0
        MLX5EEPROM            0            0K            0
         MLX5E_TLS            0            0K            0
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            MLX5EN            0            0K            0
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        MLX5EEPROM            0            0K            0
        MLX5EEPROM            0            0K            0
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               NLM            0            0K            0
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         ipsec-reg            0            0K            0
        ipsec-misc            0            0K           14
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            ip6opt            0            0K           13
       ip6_msource            0            0K            3
             frag6            0            0K            0
            tcplog            0            0K            0
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              ipid            0            0K            0
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      80211ratectl            0            0K            0
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            statfs            0            0K          191
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           inotify            0            0K            6
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               iov            0            0K        14071
          ioctlops            0            0K          120
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     tr_raid5_data            0            0K            0
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               USB            0            0K            0
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             hdacc            0            0K            0
              hdac            0            0K            0
              hdaa            0            0K            0
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               PUC            0            0K            0
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            sr_iov            0            0K            0
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               OCS            0            0K            0
              nvme            0            0K            0
               nvd            0            0K            0
            netmap            0            0K            0
            mwldev            0            0K            0
        MVS driver            0            0K            0
         mpi3mrbuf            0            0K            0
          mrsasbuf            0            0K            0
          mpt_user            0            0K            0
          mps_user            0            0K            0
            MPSSAS            0            0K            0
               mps            0            0K            0
          mpr_user            0            0K            0
            MPRSAS            0            0K            0
               mpr            0            0K            0
            mfibuf            0            0K            0
           malodev            0            0K            0
               LED            0            0K            0
          ix_sriov            0            0K            0
                ix            0            0K            0
            ipsbuf            0            0K            0
         ciss_data            0            0K            0
         BACKLIGHT            0            0K            0
           ath_hal            0            0K            0
            athdev            0            0K            0
           ata_pci            0            0K            0
           ata_dma            0            0K            0
       ata_generic            0            0K            0
       AHCI driver            0            0K            0
               agp            0            0K            0
           acpipwr            0            0K            0
         acpi_perf            0            0K            0
         acpicmbat            0            0K            0
        aacraidcam            0            0K            0
       aacraid_buf            0            0K            0
            aaccam            0            0K            0
            aacbuf            0            0K            0
              zstd            0            0K            0
            XZ_DEC            0            0K            0
            nvlist            0            0K          175
          SCSI ENC            0            0K            0
           SCSI sa            0            0K            0
         scsi_pass            0            0K            0
           scsi_da            0            0K           70
            ata_da            0            0K            0
           scsi_ch            0            0K            0
           scsi_cd            0            0K            0
           nvme_da            0            0K            0
           CAM CCB            0            0K          523
     CAM ccb queue            0            0K            0
db> show uma
              Zone   Size    Used    Free    Requests  Sleeps  Bucket  Total Mem    XFree
   mbuf_jumbo_page   4096    8321    1585       19187       0     254   40574976        0
              mbuf    256    8955    2222       29726       0     254    2861312        0
          BUF TRIE    152     256   11548        1329       0      62    1794208        0
        malloc-384    384    4171      29        4219       0      30    1612800        0
           tcp_log    416     167    3649        8039       0     254    1587456        0
        malloc-128    128   11649     224       15078       0     126    1519744        0
       malloc-4096   4096     349       3        1096       0       2    1441792        0
        RADIX NODE    152    8671     268       41938       0      62    1358728        0
       UMA Slabs 0    112   11586       0       11586       0     126    1297632        0
      malloc-65536  65536      16       1          19       0       1    1114112        0
      mbuf_cluster   2048     508       0         508       0     254    1040384        0
         vmem btag     56   18482      61       18482       0     254    1038408        0
      malloc-16384  16384      41       2         210       0       1     704512        0
         FFS inode   1168     576      26         730       0       8     703136        0
           sctp_ep   1152       3     508          89       0     254     588672        0
         sctp_asoc   2256       0     255           1       0     254     575280        0
            socket   1024      43     465        1836       0     254     520192        0
          lkpicurr    168       2    3094           2       0      62     520128        0
              pbuf   2624       0     194           0       0       2     509056        0
       malloc-4096   4096     107       7        1072       0       2     466944        0
         VM OBJECT    248    1419     133       16475       0      62     384896        0
        256 Bucket   2048     150      10        1200       0       8     327680        0
            THREAD   1860     174       2         355       0       8     327360        0
             VNODE    440     616      77         779       0      30     304920        0
       malloc-2048   2048     110      26         644       0       8     278528        0
         malloc-64     64    4174     173        7820       0     254     278208        0
      malloc-32768  32768       3       5         240       0       1     262144        0
         malloc-16     16   14645     355       15005       0     254     240000        0
         MAP ENTRY     96    2011     383       53669       0     126     229824        0
            DEVCTL   1024     111     109         236       0       0     225280        0
      malloc-65536  65536       1       2          65       0       1     196608        0
      malloc-65536  65536       2       1          10       0       1     196608        0
        malloc-128    128    1310     209       25810       0     126     194432        0
        sctp_raddr    736       0     264           1       0     254     194304        0
         UMA Zones    768     244       0         244       0      16     187392        0
         malloc-32     32    5379     291        5946       0     254     181440        0
     FPU_save_area    832     176      40         463       0      16     179712        0
       FFS2 dinode    256     576     114         730       0      62     176640        0
            lkpimm     56       1    3095           1       0     254     173376        0
             unpcb    320       8     508        1242       0     254     165120        0
       malloc-2048   2048       6      74          94       0       8     163840        0
       malloc-1024   1024     146      14         192       0      16     163840        0
              PROC   1368      89      21        1053       0       8     150480        0
       S VFS Cache    104    1023     381        1225       0     126     146016        0
        malloc-256    256      54     516        1387       0      62     145920        0
      malloc-65536  65536       0       2           3       0       1     131072        0
      malloc-65536  65536       0       2         110       0       1     131072        0
       mbuf_packet    256      14     494         817       0     254     130048        0
          ksiginfo    112      87     957         147       0     126     116928        0
        malloc-128    128     651     248        1985       0     126     115072        0
       malloc-2048   2048       7      49         652       0       8     114688        0
         filedesc0   1072      91      14        1059       0       8     112560        0
      malloc-32768  32768       0       3          13       0       1      98304        0
      malloc-32768  32768       3       0           3       0       1      98304        0
          syncache    176       1     528           7       0     254      93104        0
          UMA Kegs    384     230       3         230       0      30      89472        0
        malloc-128    128     507     144        1104       0     126      83328        0
        malloc-384    384     165      45         437       0      30      80640        0
        malloc-256    256     209     106         540       0      62      80640        0
             g_bio    408       0     180        9172       0      30      73440        0
        128 Bucket   1024      48      19         265       0      16      68608        0
         malloc-64     64     649     422       15181       0     254      68544        0
        malloc-128    128     300     227         386       0     126      67456        0
               md0      8    8192     192        8192       0     254      67072        0
      malloc-32768  32768       2       0           2       0       1      65536        0
      malloc-32768  32768       0       2         120       0       1      65536        0
       malloc-4096   4096      13       3          32       0       2      65536        0
       malloc-2048   2048      22      10          46       0       8      65536        0
         64 Bucket    512      93      35        4408       0      30      65536        0
        malloc-256    256     183      72        1142       0      62      65280        0
         32 Bucket    256      78     177        4485       0      62      65280        0
       malloc-8192   8192       6       1           8       0       1      57344        0
         tcp_inpcb   1304      10      32          69       0       8      54768        0
         malloc-64     64     360     459       45376       0     254      52416        0
         malloc-64     64     459     360         661       0     254      52416        0
        malloc-128    128       6     397         386       0     126      51584        0
         udp_inpcb    408      10     116         310       0      30      51408        0
        malloc-256    256      78     117         505       0      62      49920        0
        malloc-256    256      98      97         591       0      62      49920        0
        malloc-256    256      31     164         400       0      62      49920        0
           DIRHASH   1024      34      14          38       0      16      49152        0
             NAMEI   1024       1      47       15260       0      16      49152        0
       malloc-8192   8192       6       0           7       0       1      49152        0
       malloc-1024   1024       6      42         540       0      16      49152        0
           pcpu-64     64     504     264         504       0     254      49152        0
           VMSPACE    584      61      23        1022       0      16      49056        0
        malloc-384    384      63      57          63       0      30      46080        0
        malloc-384    384       4     116         123       0      30      46080        0
            pcpu-8      8    4909     723        6117       0     254      45056        0
             Files     80     210     340        8907       0     126      44000        0
              pipe    736      20      35         359       0      16      40480        0
            da_ccb    544       0      70        2406       0      16      38080        0
         malloc-64     64      66     501         167       0     254      36288        0
         malloc-64     64      15     552          35       0     254      36288        0
         malloc-64     64      44     523         341       0     254      36288        0
         malloc-64     64      26     541         350       0     254      36288        0
         malloc-32     32     684     450        1918       0     254      36288        0
       tcp_bbr_map    128       0     279           8       0     126      35712        0
        malloc-128    128      47     232         147       0     126      35712        0
        malloc-128    128      37     242         205       0     126      35712        0
     routing nhops    256      27     108          62       0      62      34560        0
           ttyoutq    256      72      63         160       0      62      34560        0
        malloc-384    384      29      61         213       0      30      34560        0
        malloc-256    256      62      73         244       0      62      34560        0
        malloc-256    256      47      88        1006       0      62      34560        0
      malloc-32768  32768       1       0           1       0       1      32768        0
      malloc-32768  32768       1       0           1       0       1      32768        0
      malloc-16384  16384       2       0           2       0       1      32768        0
      malloc-16384  16384       2       0           2       0       1      32768        0
      malloc-16384  16384       0       2         190       0       1      32768        0
       malloc-8192   8192       2       2          44       0       1      32768        0
       malloc-8192   8192       2       2          83       0       1      32768        0
       malloc-4096   4096       4       4          40       0       2      32768        0
       malloc-4096   4096       5       3         198       0       2      32768        0
       malloc-4096   4096       3       5          12       0       2      32768        0
       malloc-2048   2048       1      15          13       0       8      32768        0
       malloc-2048   2048       9       7          16       0       8      32768        0
       malloc-2048   2048       0      16          50       0       8      32768        0
       malloc-2048   2048       3      13         194       0       8      32768        0
       malloc-1024   1024       2      30          50       0      16      32768        0
       malloc-1024   1024       5      27        1238       0      16      32768        0
       malloc-1024   1024      10      22         177       0      16      32768        0
       malloc-1024   1024       3      29           4       0      16      32768        0
        malloc-512    512       1      63         111       0      30      32768        0
        malloc-512    512       3      61          95       0      30      32768        0
        malloc-512    512      13      51          18       0      30      32768        0
        malloc-512    512       3      61          55       0      30      32768        0
        malloc-512    512       4      60          53       0      30      32768        0
        malloc-512    512       8      56          10       0      30      32768        0
            ttyinq    160     135      65         300       0      62      32000        0
              PGRP    120      25     239          59       0     126      31680        0
            clpbuf   2624       0      12          49       0       4      31488        0
        sctp_laddr     48       0     588          40       0     254      28224        0
          rl_entry     48      11     577          11       0     254      28224        0
         16 Bucket    144      63     133         349       0      62      28224        0
          4 Bucket     48       7     581          11       0     254      28224        0
               AIO    208       1     132          30       0      62      27664        0
         TURNSTILE    136     177      12         177       0      62      25704        0
            cpuset    200       9     119          24       0      62      25600        0
       malloc-8192   8192       3       0           3       0       1      24576        0
       malloc-8192   8192       1       2          22       0       1      24576        0
       malloc-8192   8192       3       0           3       0       1      24576        0
    ertt_txseginfo     40       0     606         924       0     254      24240        0
               PWD     40      37     569         197       0     254      24240        0
           rtentry    168      30     114          62       0      62      24192        0
          8 Bucket     80      61     239         426       0     126      24000        0
            itimer    352       0      66          28       0      30      23232        0
        malloc-384    384       1      59         344       0      30      23040        0
        malloc-384    384      22      38          79       0      30      23040        0
        malloc-384    384      22      38         376       0      30      23040        0
             ripcb    376       5      55          36       0      30      22560        0
       Mountpoints   2816       2       6           5       0       4      22528        0
        SLEEPQUEUE     88     177      79         177       0     126      22528        0
         hostcache     64       2     313           2       0     254      20160        0
              ertt     72      10     270          69       0     126      20160        0
         malloc-32     32      80     550         114       0     254      20160        0
         malloc-32     32     149     481         469       0     254      20160        0
         malloc-32     32      46     584         800       0     254      20160        0
         malloc-32     32     133     497        3207       0     254      20160        0
         malloc-32     32      63     567         303       0     254      20160        0
          2 Bucket     32      67     563         447       0     254      20160        0
             KNOTE    160       0     125         301       0      62      20000        0
           cryptop    280       0      70           4       0      30      19600        0
             AIOCB    552       0      35          30       0      16      19320        0
      ktls_session    256       0      75           1       0      62      19200        0
       L VFS Cache    320       0      60          14       0      30      19200        0
            AIOLIO    272       0      70           5       0      30      19040        0
              vmem   1856       2       7           2       0       8      16704        0
 epoch_record pcpu    256       4      60           4       0      62      16384        0
       malloc-4096   4096       1       3         140       0       2      16384        0
       malloc-1024   1024       8       8           8       0      16      16384        0
        malloc-512    512       0      32           1       0      30      16384        0
           SMR CPU     32       8     503           8       0     254      16352        0
       tcp_bbr_pcb    896       0      18           1       0      16      16128        0
            mqueue    248       1      63           1       0      62      15872        0
              kenv    258      17      43        1066       0      30      15480        0
            mqnode    416       4      32           4       0      30      14976        0
     udplite_inpcb    408       2      34           5       0      30      14688        0
         domainset     40       0     315          13       0     254      12600        0
        SMR SHARED     24       8     503           8       0     254      12264        0
         malloc-32     32       6     372          34       0     254      12096        0
         malloc-16     16      12     738          75       0     254      12000        0
         malloc-16     16      18     732          89       0     254      12000        0
         malloc-16     16     298     452         622       0     254      12000        0
         malloc-16     16      83     667         147       0     254      12000        0
         malloc-16     16     189     561        3028       0     254      12000        0
         malloc-16     16      36     714       24941       0     254      12000        0
         malloc-16     16      79     671        1663       0     254      12000        0
            splice    184       0      63           1       0      62      11592        0
            swrbuf   2624       0       4           4       0       4      10496        0
       malloc-8192   8192       1       0           1       0       1       8192        0
       malloc-4096   4096       0       2           3       0       2       8192        0
           pcpu-16     16       8     504           8       0     254       8192        0
      vtnet_tx_hdr     24       0     334         957       0     254       8016        0
       UMA Slabs 1    176      10      12          10       0      62       3872        0
        KMAP ENTRY     96      15      24          19       0       0       3744        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    152       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 fragment node     72       0       0           0       0     126          0        0
          pf frags    232       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 Ethernet anchors   1240       0       0           0       0      64          0        0
        pf anchors   1664       0       0           0       0      64          0        0
   pf UDP mappings    104       0       0           0       0     126          0        0
   pf source nodes    152       0       0           0       0     254          0        0
     pf state keys     88       0       0           0       0     126          0        0
         pf states    384       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_rack_pcb   1088       0       0           0       0       8          0        0
      tcp_rack_map    128       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
               ipq     56       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
   tcp_log_id_node    120       0       0           0       0     126          0        0
 tcp_log_id_bucket    176       0       0           0       0      62          0        0
          tcpreass     48       0       0           0       0     254          0        0
    IPsec SA lft_c     16       0       0           0       0     254          0        0
        mqnotifier    216       0       0           0       0      62          0        0
            mvdata     64       0       0           0       0     254          0        0
        TMPFS node    240       0       0           0       0      62          0        0
           NCLNODE    608       0       0           0       0      16          0        0
     LTS VFS Cache    360       0       0           0       0      30          0        0
     STS VFS Cache    144       0       0           0       0      62          0        0
  linux_dma_object     32       0       0           0       0     254          0        0
  linux_dma_pctrie    152       0       0           0       0      62          0        0
   IOMMU_MAP_ENTRY    112       0       0           0       0     126          0        0
            skbuff   1808       0       0           0       0       8          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      16          0        0
           nfspbuf   2624       0       0           0       0       4          0        0
            swwbuf   2624       0       0           0       0       2          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    152       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-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-1024   1024       0       0           0       0      16          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     88       0       0           0       0     126          0        0
          UMA Hash    256       0       0           0       0      62          0        0
db> show all tcpcbs/bl

Crashes (10):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/10/26 12:31 freebsd-src e93db9abc9a6 c0460fcd console log report ci-freebsd-main Fatal trap NUM: page fault in mld_change_state
2025/09/19 03:05 freebsd-src d5984d5f29a7 e2beed91 console log report ci-freebsd-main Fatal trap NUM: page fault in mld_change_state
2025/08/20 10:39 freebsd-src c04fe26aa2f7 79512909 console log report ci-freebsd-main Fatal trap NUM: page fault in mld_change_state
2025/05/30 19:12 freebsd-src 955ab1a8f21e 3d2f584d console log report ci-freebsd-main Fatal trap NUM: page fault in mld_change_state
2025/03/24 14:23 freebsd-src 67c1c4dfd1cc 875573af console log report ci-freebsd-main Fatal trap NUM: page fault in mld_change_state
2025/08/16 22:59 freebsd-src fa085cc78673 1804e95e console log report ci-freebsd-i386 Fatal trap NUM: page fault in mld_change_state
2025/06/17 09:06 freebsd-src 990a088612c3 cfebc887 console log report ci-freebsd-i386 Fatal trap NUM: page fault in mld_change_state
2025/04/15 15:25 freebsd-src 168d873ae41f 85125322 console log report ci-freebsd-i386 Fatal trap NUM: page fault in mld_change_state
2025/03/07 02:03 freebsd-src ecb3a7d43dd6 831e3629 console log report ci-freebsd-i386 Fatal trap NUM: page fault in mld_change_state
2025/03/01 23:45 freebsd-src 7ee310c80ea7 c3901742 console log report ci-freebsd-i386 Fatal trap NUM: page fault in mld_change_state
* Struck through repros no longer work on HEAD.