syzbot


panic: H:ADDR p_prev_slot:LINE not equal to p_cur_slot:NUM

Status: auto-closed as invalid on 2021/05/20 15:18
Reported-by: syzbot+9914b09e0b0cf60f3204@syzkaller.appspotmail.com
First crash: 1102d, last: 1102d
Similar bugs (1)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
freebsd panic: H:ADDR p_prev_slot:LINE not equal to p_cur_slot:NUM (2) 1 963d 961d 0/2 closed as dup on 2021/09/19 10:37

Sample crash report:
panic: H:0xfffff80004aeb000 p_prev_slot:7144 not equal to p_cur_slot:10679
cpuid = 1
time = 1613748056
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x47/frame 0xfffffe0051770900
vpanic() at vpanic+0x1c7/frame 0xfffffe0051770960
panic() at panic+0x43/frame 0xfffffe00517709c0
tcp_hpts_thread() at tcp_hpts_thread+0x1d9f/frame 0xfffffe0051770b10
ithread_loop() at ithread_loop+0x33f/frame 0xfffffe0051770bb0
fork_exit() at fork_exit+0xb3/frame 0xfffffe0051770bf0
fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe0051770bf0
--- trap 0, rip = 0, rsp = 0, rbp = 0 ---
KDB: enter: panic
[ thread pid 12 tid 100083 ]
Stopped at      kdb_enter+0x67: movq    $0,0x14438fe(%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         0xffffffff8112be70  vprintf+0x140
rdx                        0x1
rbx                          0
rsp         0xfffffe00517708e0
rbp         0xfffffe0051770900
rsi                          0
rdi         0xffffffff8112bea6  vprintf+0x176
r8                           0
r9                  0xffffffff
r10                          0
r11         0xfffffe0094c84810
r12         0xffffffff820678b0  ddb_dbbe
r13                          0
r14         0xffffffff81a501da
r15         0xffffffff81a501da
rip         0xffffffff81122e87  kdb_enter+0x67
rflags                    0x82
kdb_enter+0x67: movq    $0,0x14438fe(%rip)
db> show proc
Process 12 (intr) at 0xfffff80004474a50:
 state: NORMAL
 uid: 0  gids: 0
 parent: pid 0 at 0xffffffff82519cf0
 ABI: null
 flag: 0x10000284  flag2: 0
 reaper: 0xffffffff82519cf0 reapsubtree: 12
 sigparent: 20
 vmspace: 0xffffffff8251a940
   (map 0xffffffff8251a940)
   (map.pmap 0xffffffff8251aa00)
   (pmap 0xffffffff8251aa60)
 threads: 23
100010                   I                                   [swi5: fast taskq]
100015                   I                                   [swi6: task queue]
100016                   I                                   [swi6: Giant taskq]
100029                   Run     CPU 0                       [swi4: clock (0)]
100030                   RunQ                                [swi4: clock (1)]
100031                   I                                   [swi3: vm]
100032                   I                                   [swi1: netisr 0]
100044                   I                                   [irq24: virtio_pci0]
100045                   I                                   [irq25: virtio_pci0]
100046                   I                                   [irq26: virtio_pci0]
100047                   I                                   [irq27: virtio_pci0]
100048                   I                                   [irq28: virtio_pci1]
100049                   I                                   [irq29: virtio_pci1]
100050                   I                                   [irq30: virtio_pci1]
100051                   I                                   [irq31: virtio_pci1]
100052                   I                                   [irq32: virtio_pci1]
100057                   I                                   [irq10: virtio_pci2]
100059                   I                                   [irq1: atkbd0]
100060                   I                                   [irq12: psm0]
100061                   I                                   [swi0: uart uart++]
100069                   I                                   [swi1: pf send]
100082                   RunQ                                [swi1: hpts]
100083                   Run     CPU 1                       [swi1: hpts]
db> ps
  pid  ppid  pgrp   uid  state   wmesg   wchan               cmd
34842 30919 30919     0  RE                                  syz-executor.2
34840 30929 30929     0  R       (threaded)                  syz-executor.0
174039                   RunQ                                syz-executor.0
176907                   S       sbwait  0xfffff800703a3574  syz-executor.0
176910                   S       sbwait  0xfffff8005ab3acd4  syz-executor.0
176911                   S       uwait   0xfffff80018d6d700  syz-executor.0
176912                   S       uwait   0xfffff80018d6d200  syz-executor.0
176913                   S       uwait   0xfffff800183bef00  syz-executor.0
176914                   S       uwait   0xfffff80018add080  syz-executor.0
176915                   S       uwait   0xfffff80004df1800  syz-executor.0
176916                   S       uwait   0xfffff80018e95f00  syz-executor.0
32369     1 32369    65  Rs                                  dhclient
31810     1 31810     0  Ss      select  0xfffff800536811c0  dhclient
31807     1 31807     0  Ss      select  0xfffff80053681e40  dhclient
31792     1 31792    65  Rs                                  dhclient
31215     1 31215     0  Ss      select  0xfffff80018bed7c0  dhclient
31212     1 31212     0  Ss      select  0xfffff80053681bc0  dhclient
31201     1 31201    65  Rs                                  dhclient
30929   780 30929     0  Rs                                  syz-executor.0
30919   780 30919     0  Rs                                  syz-executor.2
30889     1 30889     0  Ss      select  0xfffff80053f900c0  dhclient
30884     1 30884     0  Ss      select  0xfffff80053f5ecc0  dhclient
30857   780 30857     0  Ss      piperd  0xfffff800706f45d0  syz-executor.3
14633     1 14633    65  Rs                                  dhclient
14063   780 14063     0  Ss      piperd  0xfffff8005302f5d0  syz-executor.1
14048     1 14048     0  Ss      select  0xfffff80018adda40  dhclient
14043     1 14043     0  Ss      select  0xfffff80018e957c0  dhclient
  780   778   778     0  R       (threaded)                  syz-fuzzer
100093                   S       uwait   0xfffff80004e30d00  syz-fuzzer
100114                   RunQ                                syz-fuzzer
100115                   S       uwait   0xfffff80004f09200  syz-fuzzer
100116                   S       uwait   0xfffff800183be200  syz-fuzzer
100117                   S       uwait   0xfffff800183be300  syz-fuzzer
100118                   S       uwait   0xfffff800183be400  syz-fuzzer
100119                   S       uwait   0xfffff800183be500  syz-fuzzer
100120                   S       uwait   0xfffff800183be600  syz-fuzzer
100574                   RunQ                                syz-fuzzer
125195                   S       uwait   0xfffff80018add780  syz-fuzzer
  778   776   778     0  Ss      pause   0xfffff800183db0b0  csh
  776   694   776     0  Ss      select  0xfffff800183be9c0  sshd
  760     1   760     0  Ss+     ttyin   0xfffff8000486dcb0  getty
  759     1   759     0  Ss+     ttyin   0xfffff80004bba8b0  getty
  758     1   758     0  Ss+     ttyin   0xfffff80004bbacb0  getty
  757     1   757     0  Ss+     ttyin   0xfffff80004bc20b0  getty
  756     1   756     0  Ss+     ttyin   0xfffff80004bc24b0  getty
  755     1   755     0  Ss+     ttyin   0xfffff80004bc28b0  getty
  754     1   754     0  Ss+     ttyin   0xfffff80004bc2cb0  getty
  753     1   753     0  Ss+     ttyin   0xfffff80004b310b0  getty
  752     1   752     0  Ss+     ttyin   0xfffff80004b314b0  getty
  698     1   698     0  Ss      nanslp  0xffffffff82539f20  cron
  694     1   694     0  Ss      select  0xfffff80004f09d40  sshd
  507     1   507     0  Rs                                  syslogd
  436     1   436     0  Rs                                  devd
  435     1   435    65  Rs                                  dhclient
  350     1   350     0  Ss      select  0xfffff80004b4d040  dhclient
  347     1   347     0  Ss      select  0xfffff80004f09b40  dhclient
   23     0     0     0  RL                                  [vnlru]
   22     0     0     0  RL                                  [syncer]
   21     0     0     0  RL      (threaded)                  [bufdaemon]
100079                   RunQ                                [bufdaemon]
100086                   RunQ                                [bufspacedaemon-0]
100097                   RunQ                                [/ worker]
   20     0     0     0  DL      psleep  0xffffffff82650248  [vmdaemon]
   19     0     0     0  RL      (threaded)                  [pagedaemon]
100077                   RunQ                                [dom0]
100084                   D       launds  0xffffffff826446c4  [laundry: dom0]
100085                   RunQ                                [uma]
   18     0     0     0  RL                                  [rand_harvestq]
   17     0     0     0  DL      waiting 0xffffffff82dc2818  [sctp_iterator]
   16     0     0     0  RL                                  [pf purge]
   15     0     0     0  DL      -       0xffffffff82625a5c  [soaiod4]
    9     0     0     0  RL                                  [soaiod3]
    8     0     0     0  RL                                  [soaiod2]
    7     0     0     0  DL      -       0xffffffff82625a5c  [soaiod1]
    6     0     0     0  DL      (threaded)                  [cam]
100043                   D       -       0xffffffff82245bc0  [doneq0]
100076                   D       -       0xffffffff82245a90  [scanner]
   14     0     0     0  DL      seqstat 0xfffff800045f4c88  [sequencer 00]
    5     0     0     0  DL      crypto_ 0xfffff80004346b90  [crypto returns 1]
    4     0     0     0  DL      crypto_ 0xfffff80004346b30  [crypto returns 0]
    3     0     0     0  DL      crypto_ 0xffffffff82641ba0  [crypto]
   13     0     0     0  DL      (threaded)                  [geom]
100034                   D       -       0xffffffff82519760  [g_event]
100035                   D       -       0xffffffff82519768  [g_up]
100036                   D       -       0xffffffff82519770  [g_down]
    2     0     0     0  DL      (threaded)                  [KTLS]
100027                   D       -       0xfffff8000434bd00  [thr_0]
100028                   D       -       0xfffff8000434bd80  [thr_1]
   12     0     0     0  RL      (threaded)                  [intr]
100010                   I                                   [swi5: fast taskq]
100015                   I                                   [swi6: task queue]
100016                   I                                   [swi6: Giant taskq]
100029                   Run     CPU 0                       [swi4: clock (0)]
100030                   RunQ                                [swi4: clock (1)]
100031                   I                                   [swi3: vm]
100032                   I                                   [swi1: netisr 0]
100044                   I                                   [irq24: virtio_pci0]
100045                   I                                   [irq25: virtio_pci0]
100046                   I                                   [irq26: virtio_pci0]
100047                   I                                   [irq27: virtio_pci0]
100048                   I                                   [irq28: virtio_pci1]
100049                   I                                   [irq29: virtio_pci1]
100050                   I                                   [irq30: virtio_pci1]
100051                   I                                   [irq31: virtio_pci1]
100052                   I                                   [irq32: virtio_pci1]
100057                   I                                   [irq10: virtio_pci2]
100059                   I                                   [irq1: atkbd0]
100060                   I                                   [irq12: psm0]
100061                   I                                   [swi0: uart uart++]
100069                   I                                   [swi1: pf send]
100082                   RunQ                                [swi1: hpts]
100083                   Run     CPU 1                       [swi1: hpts]
   11     0     0     0  RL      (threaded)                  [idle]
100003                   CanRun                              [idle: cpu0]
100004                   CanRun                              [idle: cpu1]
    1     0     1     0  SLs     wait    0xfffff80004457528  [init]
   10     0     0     0  DL      audit_w 0xffffffff826420c0  [audit]
    0     0     0     0  RLs     (threaded)                  [kernel]
100000                   RunQ                                [swapper]
100005                   D       -       0xfffff80004472100  [if_io_tqg_0]
100006                   D       -       0xfffff80004472000  [if_io_tqg_1]
100007                   D       -       0xfffff80004473e00  [if_config_tqg_0]
100008                   RunQ                                [softirq_0]
100009                   D       -       0xfffff80004473c00  [softirq_1]
100011                   D       -       0xfffff80004473900  [inm_free taskq]
100012                   D       -       0xfffff80004473800  [linuxkpi_irq_wq]
100013                   D       -       0xfffff80004473700  [kqueue_ctx taskq]
100014                   D       -       0xfffff80004473600  [aiod_kick taskq]
100017                   RunQ                                [thread taskq]
100018                   D       -       0xfffff80004473000  [in6m_free taskq]
100019                   D       -       0xfffff80004478e00  [linuxkpi_short_wq_0]
100020                   D       -       0xfffff80004478e00  [linuxkpi_short_wq_1]
100021                   D       -       0xfffff80004478e00  [linuxkpi_short_wq_2]
100022                   D       -       0xfffff80004478e00  [linuxkpi_short_wq_3]
100023                   D       -       0xfffff80004478d00  [linuxkpi_long_wq_0]
100024                   D       -       0xfffff80004478d00  [linuxkpi_long_wq_1]
100025                   D       -       0xfffff80004478d00  [linuxkpi_long_wq_2]
100026                   D       -       0xfffff80004478d00  [linuxkpi_long_wq_3]
100033                   D       -       0xfffff80004478700  [firmware taskq]
100037                   D       -       0xfffff80004478600  [crypto_0]
100038                   D       -       0xfffff80004478600  [crypto_1]
100053                   D       -       0xfffff80004892d00  [vtnet0 rxq 0]
100054                   D       -       0xfffff80004892c00  [vtnet0 txq 0]
100055                   D       -       0xfffff80004892b00  [vtnet0 rxq 1]
100056                   D       -       0xfffff80004892a00  [vtnet0 txq 1]
100058                   D       vtbslp  0xfffff80004880d00  [virtio_balloon]
100062                   D       -       0xfffff80004892300  [mca taskq]
100067                   RunQ                                [deadlkres]
100071                   D       -       0xfffff800044fb900  [acpi_task_0]
100072                   D       -       0xfffff800044fb900  [acpi_task_1]
100073                   D       -       0xfffff800044fb900  [acpi_task_2]
100075                   D       -       0xfffff80004478500  [CAM taskq]
db> show all locks
Process 12 (intr) thread 0xfffffe0051fdca00 (100083)
exclusive sleep mutex tcp_hpts_lck (hpts) r = 0 (0xfffff80004aeb000) locked @ /syzkaller/managers/main/kernel/sys/netinet/tcp_hpts.c:1302
db> show malloc
              Type        InUse        MemUse     Requests
         sctp_stro          193        14522K        18816
           pf_hash            5        11524K            5
            devbuf         4216         4340K         4244
          tcp_hpts            5         3201K            5
             vtbuf           24         1968K           46
         sysctloid        30827         1808K        30893
              kobj          331         1324K          491
            newblk           36         1033K        64836
          vfscache            3         1025K            3
               pcb          459          972K        87905
          inodedep           10          516K        37949
         ufs_quota            1          512K            1
          vfs_hash            1          512K            1
           callout            2          512K            2
              intr            4          472K            4
           subproc          143          275K        34971
            acpica         1674          184K        55181
         vnet_data            1          168K            1
         sctp_atcl          393          148K        64261
           tidhash            3          141K            3
           pagedep            9          130K        34260
        tfo_ccache            1          128K            1
            DEVFS1          106          106K          123
               sem            4          106K            4
          filedesc           14          105K        66749
            linker          286          101K          411
               BPF           46           88K          206
               bus          989           81K         3493
          mtx_pool            2           72K            2
          syncache            1           68K            1
          acpitask            1           64K            1
       ddb_capture            1           64K            1
            module          506           64K          506
              umtx          396           50K          396
           kdtrace          225           45K       111773
              temp           36           35K         9799
         hostcache            1           32K            1
               shm            1           32K           98
            DEVFS3          125           32K          135
               msg            4           30K            4
              vmem            3           28K            5
        gtaskqueue           18           26K           18
         sctp_atky          599           25K        86005
            kbdmux            6           22K            6
          pf_ifnet           78           22K         1235
            ifaddr           72           21K          182
        DEVFS_RULE           56           20K           56
           lltable           60           20K         1185
         ufs_mount            5           17K            6
              proc            3           17K            3
         sctp_timw           64           16K           64
               tty           16           16K           16
           ithread           99           16K           99
              ksem           16           14K          847
            bus-sc           32           14K         1718
       ether_multi          167           14K         1204
            KTRACE          100           13K          100
             ifnet            7           13K            7
             lockf          105           12K         5799
              kenv           93           12K           93
      eventhandler          133           12K          133
           pf_osfp           97           11K           97
         in6_multi           83           10K          527
              cred           39           10K         1010
              GEOM           60           10K          489
              rman           82           10K          423
         bmsafemap            2            9K        37398
            ip6ndp           37            9K          101
              UART           12            9K           12
           devstat            4            9K            4
               rpc            2            8K            2
             shmfd            1            8K           56
       pfs_vncache            1            8K            1
            kqueue           69            8K        35087
         pfs_nodes           20            8K           20
     audit_evclass          236            8K          294
         sctp_athm          393            7K        66206
          routetbl           31            7K         2731
            sglist            5            7K            5
          sctp_map          386            7K        37198
           CAM DEV            3            6K          510
            plimit           24            6K         2063
         taskqueue           57            6K           57
          sctp_ifa           46            6K          102
         CAM queue            5            6K         1528
            DEVFSP           78            5K          662
       ufs_dirhash           24            5K           24
           session           35            5K          149
               UMA          262            5K          262
                vt           11            5K           11
         sctp_stri            8            4K         5721
          pf_table            2            4K          662
           memdesc            1            4K            1
               MCA           32            4K           32
             evdev            4            4K            4
          kcovinfo           64            4K          578
           pwddesc           60            4K        34851
             selfd           55            4K       475925
             hhook           13            4K           13
       fpukern_ctx            3            3K            3
         proc-args           52            3K         1652
           acpisem           22            3K           22
          terminal           11            3K           11
            select           19            3K         2143
           uidinfo            4            3K          127
       inpcbpolicy           66            3K        48716
        local_apic            1            2K            1
           io_apic            1            2K            1
         ipsec-saq            2            2K            2
            Unitno           27            2K           67
           CAM XPT           22            2K          543
          in_multi            6            2K           60
       ipsecpolicy            2            2K            2
           acpidev           20            2K           20
               msi            9            2K            9
             clone            9            2K            9
               tun            7            2K            7
           softdep            1            1K            1
            sahead            1            1K            1
          secasvar            1            1K            1
             nhops            6            1K           10
       vnodemarker            2            1K         3484
      NFSD session            1            1K            1
        CAM periph            4            1K          271
          sctp_ifn            6            1K          102
             ipsec            3            1K            3
               mld            6            1K            6
              igmp            6            1K            6
         toponodes            6            1K            6
            isadev            6            1K            6
             mount           16            1K           89
          pci_link           10            1K           10
            diradd            5            1K        35500
            crypto            4            1K            4
 encap_export_host           12            1K           12
          procdesc            5            1K           54
      linuxcurrent            3            1K            4
         newdirblk            4            1K        33450
             mkdir            4            1K        66900
              pfil            4            1K            4
           CAM SIM            2            1K            2
              cdev            2            1K            2
        ip_msource            6            1K           66
    chacha20random            1            1K            1
               osd            3            1K           10
             DEVFS            9            1K           10
          indirdep            1            1K        16462
            vnodes            1            1K           96
              ktls            1            1K            1
      NFSD lckfile            1            1K            1
     NFSD V4client            1            1K            1
            feeder            7            1K            7
       ip6_msource            3            1K           20
           tcpfunc            3            1K            3
        loginclass            3            1K            6
            prison            6            1K            6
             linux            5            1K            6
        aesni_data            2            1K            2
           pf_rule            1            1K         1513
            apmdev            1            1K            1
          atkbddev            2            1K            2
     CAM dev queue            2            1K            2
 CAM I/O Scheduler            1            1K            1
          freework            1            1K        45495
          CAM path            4            1K         1034
          pmchooks            1            1K            1
            soname            4            1K        44668
          nexusdev            6            1K            6
          filecaps            5            1K          269
          sctp_vrf            1            1K            1
              vnet            1            1K            1
           entropy            2            1K          113
          acpiintr            1            1K            1
               pmc            1            1K            1
              cpus            2            1K            2
    vnet_data_free            1            1K            1
           Per-cpu            1            1K            1
               iov            1            1K        68835
          p1003.1b            1            1K            1
            mqdata            0            0K            0
        sctp_mcore            0            0K            0
        sctp_socko            0            0K        28535
         sctp_iter            0            0K          226
         sctp_mvrf            0            0K            0
         sctp_cpal            0            0K          106
         sctp_cmsg            0            0K            0
         sctp_stre            0            0K            0
         sctp_athi            0            0K            0
         sctp_a_it            0            0K          122
         sctp_aadr            0            0K         1569
           pf_altq            0            0K            0
           pf_temp            0            0K            0
            DEVFS4            0            0K            0
        madt_table            0            0K            2
          smartpqi            0            0K            0
            DEVFS2            0            0K            0
            gntdev            0            0K            0
       privcmd_dev            0            0K            0
        evtchn_dev            0            0K            0
          xenstore            0            0K            0
         ciss_data            0            0K            0
              iavf            0            0K            0
               ixl            0            0K            0
         BACKLIGHT            0            0K            0
               xnb            0            0K            0
              xbbd            0            0K            0
               xbd            0            0K            0
           Balloon            0            0K            0
          sysmouse            0            0K            0
            vtfont            0            0K            0
        ice-resmgr            0            0K            0
         ice-osdep            0            0K            0
               ice            0            0K            0
             axgbe            0            0K            0
          xen_intr            0            0K            0
           ath_hal            0            0K            0
           xen_hvm            0            0K            0
         legacydrv            0            0K            0
            qpidrv            0            0K            0
            athdev            0            0K            0
           ata_pci            0            0K            0
      dmar_idpgtbl            0            0K            0
          dmar_dom            0            0K            0
          dmar_ctx            0            0K            0
           ata_dma            0            0K            0
       ata_generic            0            0K            0
               amr            0            0K            0
              isci            0            0K            0
      iommu_dmamap            0            0K            0
            pvscsi            0            0K            0
     hyperv_socket            0            0K            0
           bxe_ilt            0            0K            0
            xenbus            0            0K            0
           scsi_da            0            0K           69
            ata_da            0            0K            0
     vm_fictitious            0            0K            0
           scsi_ch            0            0K            0
           scsi_cd            0            0K            0
       AHCI driver            0            0K            0
            USBdev            0            0K            0
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tiDeviceHandle_t * malloc            0            0K            0
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db> show uma
              Zone   Size    Used    Free    Requests  Sleeps  Bucket  Total Mem    XFree
   mbuf_jumbo_page   4096   11963    4685     1156633       0     254   68190208        0
           tcp_log    416   95000   16330     1065953       0     254   46313280        0
              mbuf    256   12833    6307    32174213       0     254    4899840        0
        RADIX NODE    144   16092    1713     1620834       0      62    2563920        0
              pbuf   2624       0     957           0       0       2    2511168        0
       UMA Slabs 0    112   18396      33       18396       0     126    2064048        0
          BUF TRIE    144     514   12954      111975       0      62    1939392        0
       malloc-4096   4096     392      10       37612       0       2    1646592        0
        malloc-384    384    4116      14        4467       0      30    1585920        0
      mbuf_cluster   2048     720      34         784       0     254    1544192        0
        malloc-128    128   10179     392       80992       0     126    1353088        0
       tcp_bbr_map    128       0    9486     1668722       0     126    1214208        0
       malloc-2048   2048     197     219      202935       0       8     851968        0
         sctp_asoc   2288     193     167       18595       0     254     823680        0
         FFS inode   1128     675      39       35932       0       8     805392        0
        256 Bucket   2048     271      63       40954       0       8     684032        0
      malloc-65536  65536       4       5        2190       0       1     589824        0
        sctp_raddr    736     233     515       32295       0     254     550528        0
           sctp_ep   1280     192     201       40762       0     254     503040        0
         VM OBJECT    264    1575      90      541869       0      30     439560        0
            socket    944      90     318       94649       0     254     385152        0
             VNODE    480     712      88       35971       0      30     384000        0
            THREAD   1792     163      35       76921       0       8     354816        0
        malloc-256    256     257    1108      137371       0      62     349440        0
       malloc-1024   1024     199     121       19152       0      16     327680        0
      malloc-32768  32768       0       9         591       0       1     294912        0
      malloc-16384  16384      11       6       33538       0       1     278528        0
      malloc-65536  65536       0       4         351       0       1     262144        0
        malloc-384    384     394     266       64279       0      30     253440        0
        sctp_chunk    152     174    1490       59456       0     254     252928        0
         malloc-64     64    3431     349       38453       0     254     241920        0
      malloc-32768  32768       0       7       14745       0       1     229376        0
            DEVCTL   1024       0     216         190       0       0     221184        0
             g_bio    408       0     540      524284       0      31     220320        0
        malloc-256    256      93     762       58688       0      62     218880        0
         malloc-16     16   12806     194       13299       0     254     208000        0
         MAP ENTRY     96    1601     415     2116764       0     126     193536        0
     udplite_inpcb    488       6     378       37255       0     254     187392        0
         tcp_inpcb    488      53     331        9275       0     254     187392        0
       S VFS Cache    104    1118     676       37408       0     127     186576        0
        malloc-128    128    1188     269       29559       0     126     186496        0
       FFS2 dinode    256     675      45       35932       0      62     184320        0
       mbuf_packet    256     112     608      160462       0     254     184320        0
         UMA Zones    768     234       0         234       0      16     179712        0
        malloc-256    256     424     236      122544       0      62     168960        0
        128 Bucket   1024     132      31       15255       0      16     166912        0
         malloc-32     32    4904     262        6929       0     254     165312        0
        malloc-384    384      61     359       40445       0      30     161280        0
         vmem btag     56    2504      76        2508       0     254     144480        0
        malloc-128    128     839     277      105602       0     126     142848        0
       malloc-1024   1024     126      10        4108       0      16     139264        0
             tcpcb   1048      52      80        9275       0     254     138336        0
      malloc-65536  65536       2       0           2       0       1     131072        0
           VMSPACE   2544      38      13       34829       0       4     129744        0
            clpbuf   2624       0      48       10532       0      16     125952        0
          ksiginfo    112      66     978        6322       0     126     116928        0
              PROC   1320      60      21       34850       0       8     106920        0
       malloc-4096   4096      22       3         111       0       2     102400        0
         64 Bucket    512     134      66      125000       0      30     102400        0
      malloc-16384  16384       2       4          24       0       1      98304        0
       malloc-8192   8192       7       5          34       0       1      98304        0
         malloc-64     64     951     561      579083       0     254      96768        0
        malloc-128    128     556     157        8838       0     126      91264        0
         filedesc0   1072      61      23       34851       0       8      90048        0
          UMA Kegs    384     220       3         220       0      30      85632        0
      malloc-16384  16384       0       5          39       0       1      81920        0
       malloc-8192   8192       6       4         140       0       1      81920        0
      malloc-65536  65536       1       0           1       0       1      65536        0
      malloc-65536  65536       1       0           1       0       1      65536        0
      malloc-65536  65536       1       0           1       0       1      65536        0
      malloc-65536  65536       0       1           8       0       1      65536        0
        malloc-384    384     134      36         701       0      30      65280        0
       malloc-4096   4096      13       2          25       0       2      61440        0
         32 Bucket    256      76     149       28243       0      62      57600        0
       malloc-8192   8192       1       6          67       0       1      57344        0
      tcp_rack_pcb    704      48      29        1204       0      16      54208        0
        malloc-256    256      63     147       40408       0      62      53760        0
       malloc-2048   2048       7      17        1426       0       8      49152        0
       malloc-2048   2048       4      20         669       0       8      49152        0
            pcpu-8      8    5722     422       39605       0     254      49152        0
       malloc-4096   4096       6       5         659       0       2      45056        0
       malloc-2048   2048       4      18        2741       0       8      45056        0
              pipe    744      23      37        2865       0      16      44640        0
         malloc-64     64     608      85        1478       0     254      44352        0
        malloc-256    256       0     165       52635       0      62      42240        0
        malloc-512    512      17      63        5705       0      30      40960        0
             Files     80     239     261      156866       0     126      40000        0
        malloc-256    256     136      14        1263       0      62      38400        0
       tcp_bbr_pcb    832       0      45        4073       0      16      37440        0
           DIRHASH   1024      34       2          34       0      16      36864        0
             NAMEI   1024       0      36      179285       0      16      36864        0
       malloc-4096   4096       9       0           9       0       2      36864        0
       malloc-2048   2048      12       6          59       0       8      36864        0
         16 Bucket    144      89     163        2740       0      62      36288        0
        malloc-128    128     187      92        3022       0     126      35712        0
             unpcb    256      20     115        4901       0     254      34560        0
      malloc-32768  32768       1       0           1       0       1      32768        0
      malloc-32768  32768       1       0           1       0       1      32768        0
      malloc-32768  32768       1       0           1       0       1      32768        0
       malloc-8192   8192       4       0           4       0       1      32768        0
       malloc-2048   2048       0      16         368       0       8      32768        0
        malloc-512    512       2      62        3630       0      30      32768        0
           pcpu-64     64     479      33         479       0     254      32768        0
            itimer    352       0      88         345       0      30      30976        0
         TURNSTILE    136     199      11         199       0      62      28560        0
sctp_stream_msg_out    112      98     154        5177       0     254      28224        0
         malloc-32     32     425     457       65344       0     254      28224        0
             KNOTE    160      30     145      475371       0      62      28000        0
          8 Bucket     80      80     270       14581       0     126      28000        0
        malloc-384    384      45      25         535       0      30      26880        0
       malloc-8192   8192       2       1           4       0       1      24576        0
       malloc-4096   4096       0       6          24       0       2      24576        0
       malloc-1024   1024      18       6        1196       0      16      24576        0
               PWD     32      19     737       33392       0     254      24192        0
            ttyinq    160     135      15         300       0      62      24000        0
         malloc-16     16     890     610       39406       0     254      24000        0
             ripcb    488       5      43        1057       0     254      23424        0
         udp_inpcb    488       2      46        1129       0     254      23424        0
           ttyoutq    256      72      18         160       0      62      23040        0
        malloc-256    256      53      37         784       0      62      23040        0
       malloc-4096   4096       0       5       33622       0       2      20480        0
       malloc-1024   1024      14       6          40       0      16      20480        0
         malloc-64     64      10     305       38366       0     254      20160        0
         malloc-64     64     221      94         870       0     254      20160        0
         malloc-64     64      36     279        3255       0     254      20160        0
          2 Bucket     32      85     545        5927       0     254      20160        0
      vtnet_tx_hdr     24       0     835     9684251       0     254      20040        0
        malloc-128    128     141      14         498       0     126      19840        0
        malloc-128    128      84      71         769       0     126      19840        0
        SLEEPQUEUE     88     199      25         199       0     126      19712        0
       Mountpoints   2752       2       5           2       0       4      19264        0
        malloc-256    256      43      32        1033       0      62      19200        0
      malloc-16384  16384       1       0           1       0       1      16384        0
       malloc-8192   8192       2       0           2       0       1      16384        0
       malloc-4096   4096       2       2           6       0       2      16384        0
        sctp_laddr     48     164     172       15643       0     254      16128        0
             udpcb     32       8     496       38384       0     254      16128        0
         malloc-32     32     151     353       34396       0     254      16128        0
         malloc-32     32     250     254        2299       0     254      16128        0
         malloc-32     32     120     384       49033       0     254      16128        0
         malloc-16     16     423     577      112956       0     254      16000        0
      tcp_rack_map    120      96      36        1214       0     126      15840        0
        sctp_readq    152       0     104        2389       0     254      15808        0
     routing nhops    256      27      33         190       0      62      15360        0
        malloc-512    512       3      21         181       0      30      12288        0
        malloc-512    512      10      14          51       0      30      12288        0
           rtentry    176      33      36         190       0      62      12144        0
         malloc-64     64      75     114         594       0     254      12096        0
              kenv    258      15      30        1121       0      30      11610        0
        malloc-384    384      15      15          17       0      30      11520        0
       malloc-2048   2048       3       1           3       0       8       8192        0
       malloc-1024   1024       0       8          72       0      16       8192        0
       malloc-1024   1024       2       6           2       0      16       8192        0
        malloc-512    512       1      15           4       0      30       8192        0
        malloc-512    512       5      11         539       0      30       8192        0
           pf tags    104       0      78          40       0     126       8112        0
    tcp_log_bucket    176       0      46           5       0      62       8096        0
             tcptw     88       0      92           2       0     254       8096        0
              PGRP     88      35      57         149       0     126       8096        0
          rl_entry     40     106      96       17612       0     254       8080        0
   sctp_asconf_ack     48       0     168         106       0     254       8064        0
          tcpreass     48       0     168           5       0     254       8064        0
               ipq     56       0     144          13       0     254       8064        0
         malloc-64     64      26     100         939       0     254       8064        0
         malloc-32     32       5     247       20440       0     254       8064        0
         malloc-32     32      60     192         470       0     254       8064        0
         malloc-32     32      32     220         359       0     254       8064        0
          4 Bucket     48       7     161         700       0     254       8064        0
         malloc-16     16       3     497       39033       0     254       8000        0
         malloc-16     16       6     494           6       0     254       8000        0
         malloc-16     16      17     483          21       0     254       8000        0
         malloc-16     16       1     499         118       0     254       8000        0
         malloc-16     16      10     490          87       0     254       8000        0
        malloc-128    128       0      62         590       0     126       7936        0
      tcp_log_node    120       0      66           9       0     126       7920        0
     FPU_save_area    832       1       8           1       0      16       7488        0
            cpuset    104       7      55          49       0     126       6448        0
         domainset     40       1     125          37       0     254       5040        0
 epoch_record pcpu    256       4      12           4       0      62       4096        0
       malloc-1024   1024       1       3           1       0      16       4096        0
       malloc-1024   1024       2       2           2       0      16       4096        0
        malloc-512    512       1       7           1       0      30       4096        0
           pcpu-16     16       7     249           7       0     254       4096        0
         hostcache     96       1      41           1       0     254       4032        0
          syncache    168       0      24           4       0     254       4032        0
       UMA Slabs 1    176      11      11          11       0      62       3872        0
       L VFS Cache    320       0      12           5       0      30       3840        0
        malloc-384    384       1       9           1       0      30       3840        0
            mqnode    416       3       6           3       0      30       3744        0
        KMAP ENTRY     96      12      27          12       0       0       3744        0
              vmem   1856       1       1           1       0       8       3712        0
           SMR CPU     32       2      29           2       0     254        992        0
        SMR SHARED     24       2      29           2       0     254        744        0
       FFS1 dinode    128       0       0           0       0     126          0        0
             swblk    136       0       0           0       0      62          0        0
          swpctrie    144       0       0           0       0      62          0        0
       sctp_asconf     40       0       0           0       0     254          0        0
   pf state scrubs     40       0       0           0       0     254          0        0
   pf frag entries     40       0       0           0       0     254          0        0
          pf frags    248       0       0           0       0      62          0        0
  pf table entries    160       0       0           0       0      62          0        0
pf table entry counters     64       0       0           0       0     254          0        0
   pf source nodes    136       0       0           0       0     254          0        0
     pf state keys     88       0       0           0       0     126          0        0
         pf states    296       0       0           0       0       0          0        0
          pf mtags     48       0       0           0       0     254          0        0
    IPsec SA lft_c     16       0       0           0       0     254          0        0
tfo_ccache_entries     80       0       0           0       0     126          0        0
               tfo      4       0       0           0       0     254          0        0
          sackhole     32       0       0           0       0     254          0        0
            AIOLIO    272       0       0           0       0      30          0        0
             AIOCB    552       0       0           0       0      16          0        0
              AIOP     32       0       0           0       0     254          0        0
               AIO    208       0       0           0       0      62          0        0
        mqnotifier    216       0       0           0       0      62          0        0
            mvdata     64       0       0           0       0     254          0        0
            mqueue    248       0       0           0       0      62          0        0
           NCLNODE    584       0       0           0       0      16          0        0
        TMPFS node    224       0       0           0       0      62          0        0
     LTS VFS Cache    360       0       0           0       0      30          0        0
     STS VFS Cache    144       0       0           0       0      62          0        0
           cryptop    280       0       0           0       0      30          0        0
  linux_dma_object     24       0       0           0       0     254          0        0
  linux_dma_pctrie    144       0       0           0       0      62          0        0
   IOMMU_MAP_ENTRY    120       0       0           0       0     126          0        0
      ktls_session    192       0       0           0       0      62          0        0
    mbuf_jumbo_16k  16384       0       0           0       0     254          0        0
     mbuf_jumbo_9k   9216       0       0           0       0     254          0        0
      audit_record   1280       0       0           0       0       8          0        0
        MAC labels     40       0       0           0       0     254          0        0
            vnpbuf   2624       0       0           0       0      64          0        0
            mdpbuf   2624       0       0           0       0       3          0        0
           nfspbuf   2624       0       0           0       0      16          0        0
            swwbuf   2624       0       0           0       0       8          0        0
            swrbuf   2624       0       0           0       0      16          0        0
          umtx_shm     88       0       0           0       0     126          0        0
           umtx pi     96       0       0           0       0     126          0        0
rangeset pctrie nodes    144       0       0           0       0      62          0        0
      malloc-65536  65536       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-16384  16384       0       0           0       0       1          0        0
      malloc-16384  16384       0       0           0       0       1          0        0
      malloc-16384  16384       0       0           0       0       1          0        0
      malloc-16384  16384       0       0           0       0       1          0        0
       malloc-8192   8192       0       0           0       0       1          0        0
       malloc-8192   8192       0       0           0       0       1          0        0
       malloc-2048   2048       0       0           0       0       8          0        0
        malloc-512    512       0       0           0       0      30          0        0
        malloc-384    384       0       0           0       0      30          0        0
           pcpu-32     32       0       0           0       0     254          0        0
            pcpu-4      4       0       0           0       0     254          0        0
            fakepg    104       0       0           0       0     126          0        0
          UMA Hash    256       0       0           0       0      62          0        0

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2021/02/19 15:17 freebsd-src 4c0bef07be07 14052202 console log report ci-freebsd-main panic: H:ADDR p_prev_slot:LINE not equal to p_cur_slot:NUM
* Struck through repros no longer work on HEAD.