syzbot


panic: sleeping thread holds tun_mtx

Status: upstream: reported on 2025/06/06 11:36
Reported-by: syzbot+5486c9a44f5c16ee0a4a@syzkaller.appspotmail.com
First crash: 154d, last: 14h18m

Sample crash report:
panic: sleeping thread holds tun_mtx
cpuid = 1
time = 1762515779
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0xc6/frame 0xfffffe0056d54f90
kdb_backtrace() at kdb_backtrace+0xd0/frame 0xfffffe0056d550f0
vpanic() at vpanic+0x257/frame 0xfffffe0056d552b0
panic() at panic+0xb5/frame 0xfffffe0056d55370
propagate_priority() at propagate_priority+0x521/frame 0xfffffe0056d553c0
turnstile_wait() at turnstile_wait+0x663/frame 0xfffffe0056d55430
__rw_rlock_hard() at __rw_rlock_hard+0x85c/frame 0xfffffe0056d55570
__rw_rlock_int() at __rw_rlock_int+0x230/frame 0xfffffe0056d55640
_inp_smr_lock() at _inp_smr_lock+0x1d2/frame 0xfffffe0056d55680
inp_next() at inp_next+0x495/frame 0xfffffe0056d556f0
icmp6_input() at icmp6_input+0x2180/frame 0xfffffe0056d55a90
ip6_input() at ip6_input+0x2285/frame 0xfffffe0056d55cf0
swi_net() at swi_net+0x2b8/frame 0xfffffe0056d55d90
ithread_loop() at ithread_loop+0x4ec/frame 0xfffffe0056d55ef0
fork_exit() at fork_exit+0xcc/frame 0xfffffe0056d55f30
fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe0056d55f30
--- trap 0, rip = 0, rsp = 0, rbp = 0 ---
KDB: enter: panic
[ thread pid 12 tid 100033 ]
Stopped at      kdb_enter+0x6e: movq    $0,0x2589547(%rip)
db> 
db> set $lines = 0
db> set $maxwidth = 0
db> show registers
cs                        0x20
ds                        0x3b
es                        0x3b
fs                        0x13
gs                        0x1b
ss                        0x28
rax                       0x12
rcx         0xfffffe0002bf1850
rdx                          0
rbx         0xffffffff828271a0  .str.27
rsp         0xfffffe0056d550d0
rbp         0xfffffe0056d550f0
rsi                          0
rdi         0xffffffff8165b669  printf+0x149
r8                           0
r9                  0xffffffff
r10         0xdb0180feff0a0140
r11                       0x1f
r12         0xfffffe0007821780
r13         0xfffffffffffffffd
r14         0xffffffff828271a0  .str.27
r15                          0
rip         0xffffffff81644a4e  kdb_enter+0x6e
rflags                    0x46
kdb_enter+0x6e: movq    $0,0x2589547(%rip)
db> show proc
Process 12 (intr) at 0xfffffe0007808560:
 state: NORMAL
 uid: 0 gid: 0 supp gids: 0
 parent: pid 0 at 0xffffffff83b58040
 ABI: null
 flag: 0x10000284  flag2: 0
 reaper: 0xffffffff83b58040 reapsubtree: 12
 sigparent: 20
 vmspace: 0xffffffff83b59020
   (map 0xffffffff83b59020)
   (map.pmap 0xffffffff83b590c0)
   (pmap 0xffffffff83b59130)
 threads: 20
100013                   I                                   [swi6: task queue]
100014                   I                                   [swi6: Giant taskq]
100016                   I                                   [swi5: fast taskq]
100033                   L      *rawinp  0xfffffe0007805000  [swi1: netisr 0]
100034                   RunQ                                [swi1: hpts]
100035                   I                                   [swi1: hpts]
100047                   I                                   [irq24: virtio_pci0]
100048                   I                                   [irq25: virtio_pci0]
100049                   I                                   [irq26: virtio_pci0]
100050                   RunQ                                [irq27: virtio_pci0]
100051                   I                                   [irq28: virtio_pci1]
100052                   I                                   [irq29: virtio_pci1]
100053                   I                                   [irq30: virtio_pci1]
100054                   RunQ                                [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]
db> ps
  pid  ppid  pgrp   uid  state   wmesg   wchan               cmd
  963   781   423     0  L      *tun_mtx 0xfffffe000782e300  ifconfig
  962     0     0     0  DL      -       0xffffffff83ccf200  [soaiod4]
  961     0     0     0  DL      -       0xffffffff83ccf200  [soaiod3]
  960     0     0     0  DL      -       0xffffffff83ccf200  [soaiod2]
  959     0     0     0  DL      -       0xffffffff83ccf200  [soaiod1]
  957   766   766     0  T       (threaded)                  syz-executor
100309                   s                                   syz-executor
100323                   D       biowr   0xfffffe0007e340a0  syz-executor
100325                   s                                   syz-executor
  955   764   764     0  R       (threaded)                  syz-executor
100292                   RunQ                                syz-executor
100321                   L      *tun_mtx 0xfffffe000782e300  syz-executor
100322                   S       uwait   0xfffffe007782cd80  syz-executor
100324                   S       uwait   0xfffffe007782c580  syz-executor
  953   943   763     0  S       uwait   0xfffffe007782d000  syz-executor
  943   763   763     0  T       (threaded)                  syz-executor
100297                   s                                   syz-executor
100298                   D       tun_ioc 0xffffffff83cdee40  syz-executor
  928     0     0     0  DL      mdwait  0xfffffe0077b1f000  [md58027]
  920     1   766     0  S       uwait   0xfffffe007782ce80  syz-executor
  915     1   763     0  SV      uwait   0xfffffe00084f7480  syz-executor
  911     1   766     0  SV      uwait   0xfffffe00084f7300  syz-executor
  904     1   763     0  SV      lockf   0xfffffe0007673680  syz-executor
  895     0     0     0  DL      (threaded)                  [KTLS]
100186                   D       -       0xfffffe006df71a00  [thr_0]
100188                   D       -       0xfffffe006df71a80  [thr_1]
100189                   D       -       0xffffffff83cd0a28  [reclaim_0]
  893     1   766     0  S       uwait   0xfffffe007782d300  syz-executor
  890     0     0     0  DL      mdwait  0xfffffe006e73e000  [md0]
  884     1   765     0  S       uwait   0xfffffe00084f7600  syz-executor
  878     1   765     0  S       uwait   0xfffffe00084f7d80  syz-executor
  871     1   765     0  S       uwait   0xfffffe005858ae00  syz-executor
  869     1   864     0  S       uwait   0xfffffe0058305000  syz-executor
  851     1   763     0  S       uwait   0xfffffe005858ac00  syz-executor
  848     1   765     0  S       uwait   0xfffffe005858b980  syz-executor
  842     1   763     0  S       uwait   0xfffffe005858a900  syz-executor
  820     0     0     0  DL      aiordy  0xfffffe00586ab570  [aiod4]
  819     0     0     0  DL      aiordy  0xfffffe00586d3000  [aiod3]
  817     0     0     0  DL      aiordy  0xfffffe00586d4008  [aiod2]
  816     0     0     0  DL      aiordy  0xfffffe00586e1000  [aiod1]
  815     1   763    -1  S       uwait   0xfffffe0058305580  syz-executor
  781   770   423     0  S       wait    0xfffffe00586d4ab8  sh
  770   423   423     0  S       wait    0xfffffe00586e3010  sh
  766   762   766     0  R                                   syz-executor
  765   762   765     0  R       CPU 0                       syz-executor
  764   762   764     0  R                                   syz-executor
  763   762   763     0  S       wait    0xfffffe00586aa010  syz-executor
  762   760   760     0  S       select  0xfffffe0007787bc0  syz-executor
  760   758   760     0  Ss      sigsusp 0xfffffe00586e1608  csh
  758   681   758     0  Ss      select  0xfffffe0007787c40  sshd
  747     1   747     0  Ts+     ttyin   0xfffffe0058324cb0  getty
  746     1   746     0  Ts+     ttyin   0xfffffe0054261cb0  getty
  745     1   745     0  Ts+     ttyin   0xfffffe00542620b0  getty
  744     1   744     0  Ts+     ttyin   0xfffffe00542624b0  getty
  743     1   743     0  Ts+     ttyin   0xfffffe00542628b0  getty
  742     1   742     0  Ts+     ttyin   0xfffffe0054262cb0  getty
  741     1   741     0  Ts+     ttyin   0xfffffe00542630b0  getty
  740     1   740     0  Ts+     ttyin   0xfffffe00542634b0  getty
  739     1   739     0  Ts+     ttyin   0xfffffe00542638b0  getty
  737     1    17     0  S+      piperd  0xfffffe00598ea700  logger
  736   735    17     0  S+      nanslp  0xffffffff83baf001  sleep
  735     1    17     0  S+      wait    0xfffffe00586a8ab0  sh
  685     1   685     0  Ss      nanslp  0xffffffff83baf000  cron
  681     1   681     0  Ss      select  0xfffffe0007787dc0  sshd
  494     1   494     0  Ss      select  0xfffffe0007787e40  syslogd
  423     1   423     0  Ss      wait    0xfffffe00586a9560  devd
  422     1   422    65  Ss      select  0xfffffe0007788040  dhclient
  337     1   337     0  Ss      select  0xfffffe0007787ec0  dhclient
  334     1   334     0  Ss      select  0xfffffe00077882c0  dhclient
   16     0     0     0  DL      syncer  0xffffffff83cdcc20  [syncer]
   15     0     0     0  RL                                  [vnlru]
   14     0     0     0  RL      (threaded)                  [bufdaemon]
100079                   D       psleep  0xffffffff83cdb160  [bufdaemon]
100082                   D       -       0xffffffff83001ec0  [bufspacedaemon-0]
100092                   RunQ                                [/ worker]
    9     0     0     0  DL      psleep  0xffffffff83d1c040  [vmdaemon]
    8     0     0     0  DL      (threaded)                  [pagedaemon]
100077                   D       psleep  0xffffffff83d02108  [dom0]
100080                   D       launds  0xffffffff83d02114  [laundry: dom0]
100081                   D       umarcl  0xffffffff81e2bdf0  [uma]
    7     0     0     0  DL      -       0xffffffff839275b0  [rand_harvestq]
    6     0     0     0  DL      pftm    0xffffffff843bbf60  [pf purge]
    5     0     0     0  DL      waiting 0xffffffff84909700  [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_ 0xffffffff83cfd9e0  [crypto]
100043                   D       crypto_ 0xfffffe0007b17030  [crypto returns 0]
100044                   D       crypto_ 0xfffffe0007b17080  [crypto returns 1]
   13     0     0     0  DL      (threaded)                  [geom]
100037                   D       -       0xffffffff83b57600  [g_event]
100038                   D       -       0xffffffff83b57620  [g_up]
100039                   D       -       0xffffffff83b57640  [g_down]
    2     0     0     0  RL      (threaded)                  [clock]
100031                   RunQ                                [clock (0)]
100032                   I                                   [clock (1)]
   12     0     0     0  RL      (threaded)                  [intr]
100013                   I                                   [swi6: task queue]
100014                   I                                   [swi6: Giant taskq]
100016                   I                                   [swi5: fast taskq]
100033                   L      *rawinp  0xfffffe0007805000  [swi1: netisr 0]
100034                   RunQ                                [swi1: hpts]
100035                   I                                   [swi1: hpts]
100047                   I                                   [irq24: virtio_pci0]
100048                   I                                   [irq25: virtio_pci0]
100049                   I                                   [irq26: virtio_pci0]
100050                   RunQ                                [irq27: virtio_pci0]
100051                   I                                   [irq28: virtio_pci1]
100052                   I                                   [irq29: virtio_pci1]
100053                   I                                   [irq30: virtio_pci1]
100054                   RunQ                                [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 0xffffffff83cfe480  [audit]
    0     0     0     0  RLs     (threaded)                  [kernel]
100000                   D       parked  0xffffffff84c53ff0  [swapper]
100005                   RunQ                                [softirq_0]
100006                   D       -       0xfffffe00077f7800  [softirq_1]
100007                   D       -       0xfffffe00077f7600  [if_io_tqg_0]
100008                   D       -       0xfffffe00077f7400  [if_io_tqg_1]
100009                   D       -       0xfffffe00077f7200  [if_config_tqg_0]
100010                   D       -       0xfffffe00077f7000  [kqueue_ctx taskq]
100011                   D       -       0xfffffe00077f6d00  [jail_remove taskq]
100012                   D       -       0xfffffe00077f6b00  [bus taskq]
100015                   D       -       0xfffffe00077f6500  [thread taskq]
100017                   D       -       0xfffffe00077f6100  [aiod_kick taskq]
100018                   D       -       0xfffffe00077f5e00  [deferred_unmount ta]
100019                   D       -       0xfffffe00077f5c00  [inm_free taskq]
100020                   D       -       0xfffffe00077f5a00  [in6m_free taskq]
100021                   D       -       0xfffffe00077f5800  [linuxkpi_irq_wq]
100022                   D       -       0xfffffe00077f5600  [linuxkpi_short_wq_0]
100023                   D       -       0xfffffe00077f5600  [linuxkpi_short_wq_1]
100024                   D       -       0xfffffe00077f5600  [linuxkpi_short_wq_2]
100025                   D       -       0xfffffe00077f5600  [linuxkpi_short_wq_3]
100026                   D       -       0xfffffe00077f5100  [linuxkpi_long_wq_0]
100027                   D       -       0xfffffe00077f5100  [linuxkpi_long_wq_1]
100028                   D       -       0xfffffe00077f5100  [linuxkpi_long_wq_2]
100029                   D       -       0xfffffe00077f5100  [linuxkpi_long_wq_3]
100036                   D       -       0xfffffe00077f4400  [firmware taskq]
100040                   D       -       0xfffffe0007bcc100  [crypto_0]
100041                   D       -       0xfffffe0007bcc100  [crypto_1]
100056                   D       -       0xfffffe00077f8200  [vtnet0 rxq 0]
100057                   D       -       0xfffffe00541f1500  [vtnet0 txq 0]
100058                   D       -       0xfffffe00541f1400  [vtnet0 rxq 1]
100059                   D       -       0xfffffe00541f1300  [vtnet0 txq 1]
100061                   D       vtbslp  0xfffffe00580bb200  [virtio_balloon]
100065                   D       -       0xffffffff8282b881  [deadlkres]
100069                   D       -       0xfffffe0058590000  [acpi_task_0]
100070                   D       -       0xfffffe0058590000  [acpi_task_1]
100071                   D       -       0xfffffe0058590000  [acpi_task_2]
100073                   D       -       0xfffffe00077f8100  [mca taskq]
100074                   D       -       0xfffffe0007bcba00  [CAM taskq]
100076                   D       -       0xfffffe0007bcc500  [ipsec_offload]
db> show all locks
Process 963 (ifconfig) thread 0xfffffe00586c1780 (100095)
exclusive sx tun_ioctl (tun_ioctl) r = 0 (0xffffffff83cdee40) locked @ /syzkaller/managers/main/kernel/sys/net/if_tuntap.c:1440
Process 957 (syz-executor) thread 0xfffffe005873d780 (100323)
exclusive lockmgr bufwait (bufwait) r = 0 (0xfffffe0007e34120) locked @ /syzkaller/managers/main/kernel/sys/kern/vfs_bio.c:1754
exclusive lockmgr ufs (ufs) r = 0 (0xfffffe0077aa8c78) locked @ /syzkaller/managers/main/kernel/sys/kern/vfs_vnops.c:1315
Process 955 (syz-executor) thread 0xfffffe0058711780 (100321)
exclusive rw rawinp (rawinp) r = 0 (0xfffffe006de431a0) locked @ /syzkaller/managers/main/kernel/sys/netinet6/raw_ip6.c:402
exclusive sx so_snd_sx (so_snd_sx) r = 0 (0xfffffe0059983580) locked @ /syzkaller/managers/main/kernel/sys/kern/uipc_socket.c:4838
Process 943 (syz-executor) thread 0xfffffe0058739780 (100298)
exclusive sleep mutex tun_mtx (tun_mtx) r = 0 (0xfffffe006de83998) locked @ /syzkaller/managers/main/kernel/sys/net/if_tuntap.c:1741
Process 765 (syz-executor) thread 0xfffffe00586ee000 (100120)
exclusive lockmgr bufwait (bufwait) r = 0 (0xfffffe0007e32d00) locked @ /syzkaller/managers/main/kernel/sys/ufs/ffs/ffs_softdep.c:14492
exclusive lockmgr ufs (ufs) r = 0 (0xfffffe0059942c78) locked @ /syzkaller/managers/main/kernel/sys/kern/vfs_subr.c:3395
db> show malloc
              Type        InUse        MemUse     Requests
           pf_hash            6        12804K            6
            linker          384         5199K          826
          tcp_hpts            8         4865K            8
            devbuf         4187         4324K         4214
         sysctloid        35379         2085K        35454
             vtbuf           24         1968K           46
              kobj          331         1324K          513
            newblk           79         1044K         1327
          vfscache            3         1025K            3
               pcb           26          671K          129
          inodedep           11          516K          285
         ufs_quota            1          512K            1
          vfs_hash            1          512K            1
           callout            2          512K            2
              intr            4          472K            4
          filedesc           44          345K          241
           subproc          163          330K         1052
         vnet_data            2          224K            2
          acpitask            1          224K            1
            KTRACE          101          201K        12367
            acpica         1674          184K        54444
              vmem            5          144K            6
           tidhash            3          141K            3
           pagedep            9          130K          132
        tfo_ccache            1          128K            1
          IP reass            1          128K            1
            DEVFS1          108          108K          125
               sem            4          106K            4
        gtaskqueue           18           98K           18
               LRO           20           83K           20
               bus         1000           82K         5086
          mtx_pool            3           74K            3
          syncache            1           68K            1
     NFSD srvcache            3           68K            3
            module          523           66K          525
       ddb_capture            1           64K            1
           kdtrace          232           45K         1292
              umtx          336           42K          336
               shm            2           34K            2
         hostcache            1           32K            1
            DEVFS3          128           32K          138
               msg            4           30K            4
            kbdmux            6           28K            6
              temp           31           21K         1950
        DEVFS_RULE           56           20K           56
               BPF           16           20K           17
            ifaddr           66           19K           68
         ufs_mount            4           17K            5
              proc            3           17K            3
               tty           16           16K           16
          routetbl          134           16K          423
           ithread           90           15K           90
            bus-sc           34           15K         1657
           lltable           44           14K           45
      eventhandler          163           14K          163
       ether_multi          157           13K          167
             ifnet            7           13K            7
              GEOM           59           13K          496
              kenv           95           12K           95
              cred           27           11K          202
         CAM queue            5           11K         1528
              rman           82           10K          437
             shmfd            4           10K            7
               rpc            8            9K            8
            plimit           23            9K          321
         in6_multi           65            9K           65
         bmsafemap            2            9K          232
           devstat            4            9K            4
            kqueue           87            9K         1121
              UART           12            9K           12
           md_disk            3            9K            4
              ksem            1            8K            1
       pfs_vncache            1            8K            1
     audit_evclass          240            8K          306
         taskqueue           69            8K           75
            sglist            6            7K            6
           CAM DEV            3            6K          510
         pfs_nodes           22            6K           22
       ufs_dirhash           24            5K           27
           pwddesc           74            5K          973
               UMA          271            5K          271
          pf_ifnet           10            5K           19
                vt           11            5K           11
           memdesc            1            4K            1
               MCA           32            4K           32
        md_sectors            1            4K            1
             evdev            4            4K            4
           acpisem           28            4K           28
             lockf           33            4K          149
            DEVFSP           46            3K           68
          terminal           11            3K           11
         proc-args           93            3K         2001
           uidinfo            6            3K           10
           session           21            3K           37
             selfd           41            3K        14368
           acpidev           20            3K           20
            CC Mem           19            3K           57
             hhook            8            3K           10
             clone            9            3K            9
          kcovinfo           36            3K           36
           netlink            2            3K           78
        local_apic            1            2K            1
           io_apic            1            2K            1
         ipsec-saq            2            2K            2
            ip6ndp           12            2K           14
          indirdep            7            2K          115
            Unitno           28            2K           56
          sctp_ifa           13            2K           14
           CAM XPT           22            2K          543
          in_multi            6            2K            9
               tun            4            2K            4
         toponodes            6            2K            6
       ipsecpolicy            2            2K            2
               msi            9            2K            9
           softdep            1            1K            1
            sahead            1            1K            1
          secasvar            1            1K            1
             nhops            6            1K            8
       vnodemarker            2            1K           24
            select            8            1K           38
          ioctlops            1            1K          115
      NFSD session            1            1K            1
       inpcbpolicy           31            1K          309
            diradd            7            1K          215
        CAM periph            4            1K          271
               osd           24            1K           74
         sctp_timw            3            1K            3
          sctp_ifn            6            1K           14
             ipsec            3            1K            3
               mld            6            1K            6
              igmp            6            1K            6
              pfil            6            1K            6
            isadev            6            1K            6
             mount           16            1K          219
          pci_link           10            1K           10
          freefrag            5            1K           72
            crypto            4            1K           14
 encap_export_host           12            1K           12
         newdirblk            4            1K          109
             mkdir            4            1K          218
              cdev            2            1K            2
       lkpikmalloc            8            1K            9
      counter_rate           13            1K           13
         sctp_atcl            1            1K           15
    chacha20random            1            1K            1
            biobuf            1            1K            1
          freework            2            1K          221
            ip6opt            2            1K           15
             DEVFS           10            1K           11
            dirrem            1            1K          198
          freeblks            1            1K          132
            vnodes            1            1K            1
              ktls            1            1K            6
      NFSD lckfile            1            1K            1
     NFSD V4client            1            1K            1
           CAM SIM            2            1K            2
            feeder            7            1K            7
         cryptodev            3            1K           57
       ip6_msource            3            1K            4
           tcpfunc            3            1K            3
        loginclass            3            1K            5
            prison            6            1K            6
            soname            5            1K         3359
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db> show uma
              Zone   Size    Used    Free    Requests  Sleeps  Bucket  Total Mem    XFree
   mbuf_jumbo_page   4096    8323    1583       22020       0     254   40574976        0
              mbuf    256    8670    1502       28761       0     254    2604032        0
           tcp_log    416    1915    2657        9479       0     254    1901952        0
          BUF TRIE    152     343   11461        1035       0      62    1794208        0
       malloc-4096   4096     407       3        2036       0       2    1679360        0
        malloc-384    384    4159      41        4180       0      30    1612800        0
        malloc-128    128   11909      88       12358       0     126    1535616        0
       UMA Slabs 0    112   11494      20       11494       0     126    1289568        0
        RADIX NODE    152    7377     522       32705       0      62    1200648        0
      mbuf_cluster   2048     508       0         508       0     254    1040384        0
         vmem btag     56   17288      31       17288       0     254     969864        0
      malloc-65536  65536      13       1          18       0       1     917504        0
         FFS inode   1168     544      30         701       0       8     670432        0
           sctp_ep   1152       1     510          11       0     254     588672        0
         sctp_asoc   2256       0     255           3       0     254     575280        0
            socket   1024      44     464        1576       0     254     520192        0
          lkpicurr    168       2    3094           2       0      62     520128        0
      malloc-16384  16384      24       4         120       0       1     458752        0
              pbuf   2664       0     166           0       0       2     442224        0
        256 Bucket   2048     161       7        1172       0       8     344064        0
         VM OBJECT    248    1242     134       14921       0      62     341248        0
            THREAD   1860     157      11         327       0       8     312480        0
         malloc-64     64    4430     169        5585       0     254     294336        0
             VNODE    440     584      82         743       0      30     293040        0
         malloc-16     16   14834     416       17825       0     254     244000        0
       malloc-2048   2048     103       9         128       0       8     229376        0
            DEVCTL   1024      26     194         151       0       0     225280        0
         malloc-64     64     171    3168       14589       0     254     213696        0
      malloc-32768  32768       4       2         124       0       1     196608        0
        sctp_raddr    736       0     264           3       0     254     194304        0
         MAP ENTRY     96    1596     420       47677       0     126     193536        0
         malloc-32     32    5499     423        6344       0     254     189504        0
         UMA Zones    768     243       1         243       0      16     187392        0
        malloc-128    128    1152     243       25338       0     126     178560        0
            lkpimm     56       1    3095           1       0     254     173376        0
             unpcb    320      11     505        1216       0     254     165120        0
     FPU_save_area    832     159      39         405       0      16     164736        0
      malloc-32768  32768       0       5          70       0       1     163840        0
       FFS2 dinode    256     544      86         701       0      62     161280        0
       malloc-1024   1024     125      19         148       0      16     147456        0
       S VFS Cache    104    1010     394        1205       0     126     146016        0
        malloc-256    256     108     462        1720       0      62     145920        0
      malloc-65536  65536       0       2          67       0       1     131072        0
      malloc-65536  65536       0       2         118       0       1     131072        0
      malloc-65536  65536       2       0           2       0       1     131072        0
      malloc-65536  65536       2       0           2       0       1     131072        0
       malloc-2048   2048       3      61        1085       0       8     131072        0
       mbuf_packet    256       2     506         830       0     254     130048        0
       malloc-4096   4096      26       4          88       0       2     122880        0
              PROC   1368      73      15         963       0       8     120384        0
             g_bio    440       4     266        7320       0      30     118800        0
          ksiginfo    112      73     971         691       0     126     116928        0
        malloc-256    256     286     149        1689       0      62     111360        0
        malloc-128    128     595     180        1214       0     126      99200        0
      malloc-32768  32768       2       1           5       0       1      98304        0
         filedesc0   1072      74      17         973       0       8      97552        0
          UMA Kegs    384     229       4         229       0      30      89472        0
            vnpbuf   2664       0      32           2       0      16      85248        0
        128 Bucket   1024      46      37         255       0      16      84992        0
        malloc-384    384     175      35         692       0      30      80640        0
        sctp_chunk    152       0     520           5       0     254      79040        0
         malloc-64     64     590     481        2515       0     254      68544        0
        malloc-128    128     361     166         501       0     126      67456        0
               md0   4096      16       0          16       0       2      65536        0
           DIRHASH   1024      34      30          36       0      16      65536        0
      malloc-65536  65536       1       0           1       0       1      65536        0
      malloc-32768  32768       2       0           2       0       1      65536        0
      malloc-16384  16384       4       0           6       0       1      65536        0
       malloc-8192   8192       6       2          89       0       1      65536        0
         64 Bucket    512      91      37        1937       0      30      65536        0
        malloc-256    256     185      70         670       0      62      65280        0
         32 Bucket    256      73     182         430       0      62      65280        0
       malloc-8192   8192       6       1          11       0       1      57344        0
         tcp_inpcb   1304      19      23          57       0       8      54768        0
         malloc-64     64     295     524       14057       0     254      52416        0
        malloc-128    128      87     316         907       0     126      51584        0
        malloc-128    128     202     201         236       0     126      51584        0
        malloc-256    256      25     170         187       0      62      49920        0
             NAMEI   1024       0      48       14081       0      16      49152        0
       malloc-2048   2048      10      14          33       0       8      49152        0
       malloc-2048   2048      11      13          65       0       8      49152        0
       malloc-1024   1024      12      36         524       0      16      49152        0
           VMSPACE    584      47      37         934       0      16      49056        0
          syncache    176       0     276           3       0     254      48576        0
        malloc-384    384      11     109         286       0      30      46080        0
            da_ccb    544       1      83        1935       0      16      45696        0
             Files     80     205     345        7728       0     126      44000        0
       malloc-4096   4096       7       3          13       0       2      40960        0
       malloc-4096   4096       6       4          17       0       2      40960        0
            pcpu-8      8    4727     393        4891       0     254      40960        0
              pipe    736      21      34         331       0      16      40480        0
        sctp_readq    152       0     260           1       0     254      39520        0
         udp_inpcb    408      10      80         187       0      30      36720        0
         malloc-64     64      23     544         290       0     254      36288        0
         malloc-64     64      85     482        1660       0     254      36288        0
         malloc-64     64       0     567        8248       0     254      36288        0
         malloc-64     64     137     430         170       0     254      36288        0
        malloc-128    128      46     233         301       0     126      35712        0
        malloc-128    128      55     224        3595       0     126      35712        0
     routing nhops    256      26     109          35       0      62      34560        0
           ttyoutq    256      72      63         160       0      62      34560        0
        malloc-256    256      30     105         261       0      62      34560        0
        malloc-256    256      10     125         434       0      62      34560        0
        malloc-256    256      67      68         135       0      62      34560        0
        malloc-256    256      20     115         400       0      62      34560        0
         TURNSTILE    136     169      83         169       0      62      34272        0
             ripcb    376       2      88          59       0      30      33840        0
        SLEEPQUEUE     88     169     215         169       0     126      33792        0
      malloc-32768  32768       0       1          13       0       1      32768        0
      malloc-32768  32768       1       0           1       0       1      32768        0
      malloc-16384  16384       1       1           2       0       1      32768        0
      malloc-16384  16384       0       2         190       0       1      32768        0
       malloc-8192   8192       2       2          25       0       1      32768        0
       malloc-8192   8192       4       0           4       0       1      32768        0
       malloc-2048   2048       9       7          21       0       8      32768        0
       malloc-2048   2048       4      12          37       0       8      32768        0
       malloc-2048   2048       2      14           3       0       8      32768        0
       malloc-2048   2048       4      12         195       0       8      32768        0
       malloc-1024   1024       4      28          53       0      16      32768        0
       malloc-1024   1024       4      28        1012       0      16      32768        0
       malloc-1024   1024       7      25         189       0      16      32768        0
       malloc-1024   1024       8      24          18       0      16      32768        0
       malloc-1024   1024      17      15          19       0      16      32768        0
        malloc-512    512      16      48          22       0      30      32768        0
        malloc-512    512       5      59          44       0      30      32768        0
        malloc-512    512       0      64          26       0      30      32768        0
        malloc-512    512       2      62          26       0      30      32768        0
        malloc-512    512       9      55          10       0      30      32768        0
           pcpu-64     64     502      10         502       0     254      32768        0
sctp_stream_msg_out    112       0     288           1       0     254      32256        0
            ttyinq    160     135      65         300       0      62      32000        0
            clpbuf   2664       0      12          47       0       4      31968        0
              PGRP    120      25     239          41       0     126      31680        0
        sctp_laddr     48       0     588          14       0     254      28224        0
         malloc-32     32     112     770         529       0     254      28224        0
         malloc-32     32     349     533         761       0     254      28224        0
         16 Bucket    144      63     133         420       0      62      28224        0
          4 Bucket     48       7     581          10       0     254      28224        0
               AIO    208       1     132          14       0      62      27664        0
            cpuset    200      42      86          47       0      62      25600        0
       malloc-8192   8192       1       2          43       0       1      24576        0
       malloc-4096   4096       1       5          20       0       2      24576        0
    ertt_txseginfo     40       2     604        1205       0     254      24240        0
               PWD     40      29     577         173       0     254      24240        0
           rtentry    168      29     115          35       0      62      24192        0
          8 Bucket     80      52     248         354       0     126      24000        0
        malloc-384    384      23      37          68       0      30      23040        0
        malloc-384    384       0      60           9       0      30      23040        0
        malloc-384    384      43      17         343       0      30      23040        0
       Mountpoints   2816       2       6           5       0       4      22528        0
         hostcache     64       2     313           2       0     254      20160        0
              ertt     72      19     261          57       0     126      20160        0
         malloc-32     32      36     594         179       0     254      20160        0
         malloc-32     32      88     542         429       0     254      20160        0
         malloc-32     32      28     602         172       0     254      20160        0
         malloc-32     32      23     607        2453       0     254      20160        0
         malloc-32     32      31     599        3693       0     254      20160        0
          2 Bucket     32      64     566         404       0     254      20160        0
             AIOCB    552       1      34          16       0      16      19320        0
      ktls_session    256       0      75           1       0      62      19200        0
       L VFS Cache    320       1      59          24       0      30      19200        0
              vmem   1856       2       7           2       0       8      16704        0
 epoch_record pcpu    256       4      60           4       0      62      16384        0
       malloc-8192   8192       2       0           2       0       1      16384        0
       malloc-8192   8192       2       0           2       0       1      16384        0
       malloc-4096   4096       0       4          10       0       2      16384        0
       malloc-4096   4096       1       3         193       0       2      16384        0
       malloc-1024   1024       1      15           1       0      16      16384        0
        malloc-512    512       0      32         110       0      30      16384        0
        malloc-512    512       3      29          51       0      30      16384        0
        malloc-512    512       1      31           1       0      30      16384        0
           SMR CPU     32       8     503           8       0     254      16352        0
              kenv    258      17      43        1066       0      30      15480        0
            mqnode    416       3      33           3       0      30      14976        0
     udplite_inpcb    408       0      36           6       0      30      14688        0
         domainset     40       1     314          41       0     254      12600        0
        SMR SHARED     24       8     503           8       0     254      12264        0
             KNOTE    160       3      72          52       0      62      12000        0
         malloc-16     16      55     695        1487       0     254      12000        0
         malloc-16     16      38     712         254       0     254      12000        0
         malloc-16     16      63     687         330       0     254      12000        0
         malloc-16     16       4     746        1543       0     254      12000        0
         malloc-16     16     270     480         284       0     254      12000        0
         malloc-16     16      23     727       24818       0     254      12000        0
        malloc-384    384       1      29           1       0      30      11520        0
        malloc-384    384       1      29           1       0      30      11520        0
           pcpu-16     16       8     504           8       0     254       8192        0
      vtnet_tx_hdr     24       0     334         908       0     254       8016        0
         malloc-16     16       5     495           8       0     254       8000        0
       UMA Slabs 1    176       9      13           9       0      62       3872        0
        KMAP ENTRY     96      12      27          20       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_bbr_pcb    896       0       0           0       0      16          0        0
       tcp_bbr_map    128       0       0           0       0     126          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
   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
            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
        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
           cryptop    280       0       0           0       0      30          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
           nfspbuf   2664       0       0           0       0       4          0        0
            swwbuf   2664       0       0           0       0       2          0        0
            swrbuf   2664       0       0           0       0       4          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
          rl_entry     48       0       0           0       0     254          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-16384  16384       0       0           0       0       1          0        0
      malloc-16384  16384       0       0           0       0       1          0        0
      malloc-16384  16384       0       0           0       0       1          0        0
      malloc-16384  16384       0       0           0       0       1          0        0
       malloc-8192   8192       0       0           0       0       1          0        0
       malloc-4096   4096       0       0           0       0       2          0        0
           pcpu-32     32       0       0           0       0     254          0        0
            pcpu-4      4       0       0           0       0     254          0        0
            fakepg     88       0       0           0       0     126          0        0
          UMA Hash    256       0       0           0       0      62          0        0
db> show all tcpcbs/bl

Crashes (851):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/11/07 11:43 freebsd-src 36095c942031 4e1406b4 console log report ci-freebsd-main panic: sleeping thread holds tun_mtx
2025/11/06 15:07 freebsd-src 1ca7542a1b31 a6c9c731 console log report ci-freebsd-main panic: sleeping thread holds tun_mtx
2025/11/05 14:38 freebsd-src b8697ac70ebf a6c9c731 console log report ci-freebsd-main panic: sleeping thread holds tun_mtx
2025/11/05 05:37 freebsd-src f999ffdce381 a6c9c731 console log report ci-freebsd-main panic: sleeping thread holds tun_mtx
2025/11/04 16:50 freebsd-src f999ffdce381 686bf657 console log report ci-freebsd-main panic: sleeping thread holds tun_mtx
2025/11/03 23:47 freebsd-src 40d216183821 e6c64ba8 console log report ci-freebsd-main panic: sleeping thread holds tun_mtx
2025/10/31 18:37 freebsd-src 0837b2ebd570 2c50b6a9 console log report ci-freebsd-main panic: sleeping thread holds tun_mtx
2025/10/31 03:08 freebsd-src 8b2f4e6b3a47 2c50b6a9 console log report ci-freebsd-main panic: sleeping thread holds tun_mtx
2025/10/30 08:52 freebsd-src 237cc7b408dd fd2207e7 console log report ci-freebsd-main panic: sleeping thread holds tun_mtx
2025/10/29 10:34 freebsd-src 73551cd6eac2 fd2207e7 console log report ci-freebsd-main panic: sleeping thread holds tun_mtx
2025/10/29 00:56 freebsd-src 22cff1f3e9d8 fd2207e7 console log report ci-freebsd-main panic: sleeping thread holds tun_mtx
2025/10/28 16:06 freebsd-src 22cff1f3e9d8 fd2207e7 console log report ci-freebsd-main panic: sleeping thread holds tun_mtx
2025/10/27 20:29 freebsd-src 1d100747d747 fd2207e7 console log report ci-freebsd-main panic: sleeping thread holds tun_mtx
2025/10/26 15:17 freebsd-src e93db9abc9a6 c0460fcd console log report ci-freebsd-main panic: sleeping thread holds tun_mtx
2025/10/25 00:13 freebsd-src 1f95a517880b c0460fcd console log report ci-freebsd-main panic: sleeping thread holds tun_mtx
2025/10/24 08:16 freebsd-src 93b02f69a6f6 c0460fcd console log report ci-freebsd-main panic: sleeping thread holds tun_mtx
2025/10/24 04:24 freebsd-src 93b02f69a6f6 c0460fcd console log report ci-freebsd-main panic: sleeping thread holds tun_mtx
2025/10/23 01:04 freebsd-src fe7954d723f8 c0460fcd console log report ci-freebsd-main panic: sleeping thread holds tun_mtx
2025/10/22 18:31 freebsd-src fe7954d723f8 c0460fcd console log report ci-freebsd-main panic: sleeping thread holds tun_mtx
2025/10/21 04:07 freebsd-src 78f70d4ff9dd 9832ed61 console log report ci-freebsd-main panic: sleeping thread holds tun_mtx
2025/10/20 20:25 freebsd-src 78f70d4ff9dd 9832ed61 console log report ci-freebsd-main panic: sleeping thread holds tun_mtx
2025/10/19 10:51 freebsd-src 6fa18fe74461 e18aa505 console log report ci-freebsd-main panic: sleeping thread holds tun_mtx
2025/10/18 18:11 freebsd-src d7ff2ded4748 e18aa505 console log report ci-freebsd-main panic: sleeping thread holds tun_mtx
2025/10/18 10:08 freebsd-src 74a6bb524e5b e18aa505 console log report ci-freebsd-main panic: sleeping thread holds tun_mtx
2025/10/17 14:25 freebsd-src c1e7e8f5cb0f e18aa505 console log report ci-freebsd-main panic: sleeping thread holds tun_mtx
2025/11/06 21:07 freebsd-src d7a138207fa4 4e1406b4 console log report ci-freebsd-i386 panic: sleeping thread holds tun_mtx
2025/11/03 13:14 freebsd-src 088ced14a69b 2c50b6a9 console log report ci-freebsd-i386 panic: sleeping thread holds tun_mtx
2025/11/02 16:40 freebsd-src 92a533ed1d3c 2c50b6a9 console log report ci-freebsd-i386 panic: sleeping thread holds tun_mtx
2025/10/28 10:48 freebsd-src 8a25a04058a8 fd2207e7 console log report ci-freebsd-i386 panic: sleeping thread holds tun_mtx
2025/10/27 04:46 freebsd-src 5a739b74650b c0460fcd console log report ci-freebsd-i386 panic: sleeping thread holds tun_mtx
2025/10/26 21:51 freebsd-src 5a739b74650b c0460fcd console log report ci-freebsd-i386 panic: sleeping thread holds tun_mtx
2025/10/26 19:33 freebsd-src 5a739b74650b c0460fcd console log report ci-freebsd-i386 panic: sleeping thread holds tun_mtx
2025/10/26 09:34 freebsd-src e93db9abc9a6 c0460fcd console log report ci-freebsd-i386 panic: sleeping thread holds tun_mtx
2025/10/26 07:35 freebsd-src e93db9abc9a6 c0460fcd console log report ci-freebsd-i386 panic: sleeping thread holds tun_mtx
2025/10/26 06:10 freebsd-src e93db9abc9a6 c0460fcd console log report ci-freebsd-i386 panic: sleeping thread holds tun_mtx
2025/10/26 04:48 freebsd-src e93db9abc9a6 c0460fcd console log report ci-freebsd-i386 panic: sleeping thread holds tun_mtx
2025/10/22 19:43 freebsd-src fe7954d723f8 c0460fcd console log report ci-freebsd-i386 panic: sleeping thread holds tun_mtx
2025/10/21 18:06 freebsd-src 401026e4825a 252fbbad console log report ci-freebsd-i386 panic: sleeping thread holds tun_mtx
2025/10/21 16:03 freebsd-src 5f7d5709e0c2 9832ed61 console log report ci-freebsd-i386 panic: sleeping thread holds tun_mtx
2025/10/21 07:19 freebsd-src 4ee0ddae1dab 9832ed61 console log report ci-freebsd-i386 panic: sleeping thread holds tun_mtx
2025/10/18 20:29 freebsd-src d7ff2ded4748 e18aa505 console log report ci-freebsd-i386 panic: sleeping thread holds tun_mtx
2025/10/18 13:47 freebsd-src d7ff2ded4748 e18aa505 console log report ci-freebsd-i386 panic: sleeping thread holds tun_mtx
2025/10/18 08:53 freebsd-src 74a6bb524e5b e18aa505 console log report ci-freebsd-i386 panic: sleeping thread holds tun_mtx
2025/06/06 11:36 freebsd-src 6d46fd2cbea4 3d899f2c console log report ci-freebsd-i386 panic: sleeping thread holds tun_mtx
* Struck through repros no longer work on HEAD.