syzbot


Fatal trap 12: page fault in __mtx_lock_spin_flags

Status: fixed on 2020/11/19 21:16
Reported-by: syzbot+e21aa5b85a9aff90ef3e@syzkaller.appspotmail.com
Fix commit: a33fef5e25ac callout(9): Fix a race between CPU migration and callout_drain()
First crash: 814d, last: 810d

Sample crash report:
Fatal trap 12: page fault while in kernel mode
cpuid = 1; apic id = 01
fault virtual address	= 0xffffffd5db840498
fault code		= supervisor read data, page not present
instruction pointer	= 0x20:0xffffffff81035d83
stack pointer	        = 0x28:0xfffffe000363b900
frame pointer	        = 0x28:0xfffffe000363b940
code segment		= base 0x0, limit 0xfffff, type 0x1b
			= DPL 0, pres 1, long 1, def32 0, gran 1
processor eflags	= interrupt enabled, resume, IOPL = 0
current process		= 12 (swi4: clock (0))
trap number		= 12
panic: page fault
cpuid = 1
time = 1605366644
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x47/frame 0xfffffe000363b560
vpanic() at vpanic+0x1c7/frame 0xfffffe000363b5c0
panic() at panic+0x43/frame 0xfffffe000363b620
trap_fatal() at trap_fatal+0x4cd/frame 0xfffffe000363b6a0
trap_pfault() at trap_pfault+0xd4/frame 0xfffffe000363b710
trap() at trap+0x41d/frame 0xfffffe000363b830
calltrap() at calltrap+0x8/frame 0xfffffe000363b830
--- trap 0xc, rip = 0xffffffff81035d83, rsp = 0xfffffe000363b900, rbp = 0xfffffe000363b940 ---
__mtx_lock_spin_flags() at __mtx_lock_spin_flags+0x23/frame 0xfffffe000363b940
callout_reset_sbt_on() at callout_reset_sbt_on+0x166/frame 0xfffffe000363b9c0
filt_timerexpire() at filt_timerexpire+0xef/frame 0xfffffe000363ba00
softclock_call_cc() at softclock_call_cc+0x1f7/frame 0xfffffe000363bad0
softclock() at softclock+0xb0/frame 0xfffffe000363bb10
ithread_loop() at ithread_loop+0x33f/frame 0xfffffe000363bbb0
fork_exit() at fork_exit+0xb3/frame 0xfffffe000363bbf0
fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe000363bbf0
--- trap 0, rip = 0, rsp = 0, rbp = 0 ---
KDB: enter: panic
[ thread pid 12 tid 100021 ]
Stopped at      kdb_enter+0x67: movq    $0,0x147af76(%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         0xffffffff810ec100  vprintf+0x140
rdx                        0x1
rbx                          0
rsp         0xfffffe000363b540
rbp         0xfffffe000363b560
rsi                          0
rdi         0xffffffff810ec136  vprintf+0x176
r8                           0
r9                  0xffffffff
r10         0x28f5c28f5c28f5c3
r11         0xfffffe0025850d10
r12         0xffffffff820671c0  ddb_dbbe
r13                          0
r14         0xffffffff819733f1
r15         0xffffffff819733f1
rip         0xffffffff810e0607  kdb_enter+0x67
rflags                    0x86
kdb_enter+0x67: movq    $0,0x147af76(%rip)
db> show proc
Process 12 (intr) at 0xfffff800042b0a40:
 state: NORMAL
 uid: 0  gids: 0
 parent: pid 0 at 0xffffffff8250ee30
 ABI: null
 reaper: 0xffffffff8250ee30 reapsubtree: 12
 sigparent: 20
 vmspace: 0xffffffff8250fa80
   (map 0xffffffff8250fa80)
   (map.pmap 0xffffffff8250fb40)
   (pmap 0xffffffff8250fba0)
 threads: 23
100011                   I                                   [swi6: task queue]
100012                   I                                   [swi6: Giant taskq]
100016                   I                                   [swi5: fast taskq]
100020                   I                                   [swi1: netisr 0]
100021                   Run     CPU 1                       [swi4: clock (0)]
100022                   I                                   [swi4: clock (1)]
100023                   I                                   [swi3: vm]
100035                   I                                   [irq24: virtio_pci0]
100036                   I                                   [irq25: virtio_pci0]
100037                   I                                   [irq26: virtio_pci0]
100038                   I                                   [irq27: virtio_pci0]
100039                   I                                   [irq28: virtio_pci1]
100040                   I                                   [irq29: virtio_pci1]
100041                   I                                   [irq30: virtio_pci1]
100042                   I                                   [irq31: virtio_pci1]
100043                   I                                   [irq32: virtio_pci1]
100048                   I                                   [irq10: virtio_pci2]
100050                   I                                   [irq1: atkbd0]
100051                   I                                   [irq12: psm0]
100052                   I                                   [swi0: uart uart++]
100060                   I                                   [swi1: pf send]
100074                   I                                   [swi1: hpts]
100075                   I                                   [swi1: hpts]
db> ps
  pid  ppid  pgrp   uid  state   wmesg   wchan               cmd
39708 13997 13997     0  S       (threaded)                  syz-executor.0
131934                   S       nanslp  0xffffffff8252ed00  syz-executor.0
140751                   S       kqread  0xfffff8003f871500  syz-executor.0
39313 39307 39313     0  Ss      select  0xfffff8003f49c2c0  dhclient
39310     1 39310     0  Ss      select  0xfffff8003f49c3c0  dhclient
39307 39300   424    65  S       select  0xfffff80026edc8c0  dhclient
39300   424   424     0  S       wait    0xfffff8003f703520  sh
39299     1 39299    65  Ss      select  0xfffff8003f6a0340  dhclient
36814     1 36814     0  Ss      select  0xfffff80026edc3c0  dhclient
36809     1 36809     0  Ss      select  0xfffff8003f6a0240  dhclient
36797     1 36797    65  Ss      select  0xfffff80004b2e740  dhclient
34770   762 34770     0  Ss      piperd  0xfffff80004aa45d0  syz-executor.3
34746   762 34746     0  Ss      piperd  0xfffff80026f96000  syz-executor.1
33505     1 33505     0  Ss      select  0xfffff800049ec140  dhclient
33496     1 33496     0  Ss      select  0xfffff8003f7cc840  dhclient
33478   762 33478     0  Ss      piperd  0xfffff8003f512ba0  syz-executor.2
14324     1 14324    65  Ss      select  0xfffff80004b2e5c0  dhclient
14018     1 14018     0  Ss      select  0xfffff8006d001c40  dhclient
14014     1 14014     0  Ss      select  0xfffff8003f7cca40  dhclient
13997   762 13997     0  Ss      nanslp  0xffffffff8252ed00  syz-executor.0
  762   760   760     0  S       (threaded)                  syz-fuzzer
100081                   S       uwait   0xfffff8000496fb00  syz-fuzzer
100114                   S       uwait   0xfffff80026fae300  syz-fuzzer
100115                   S       kqread  0xfffff8000496b000  syz-fuzzer
100116                   S       uwait   0xfffff8003f49c980  syz-fuzzer
100117                   S       uwait   0xfffff8003f49ca80  syz-fuzzer
100118                   S       uwait   0xfffff8003f49cb80  syz-fuzzer
100119                   S       uwait   0xfffff8003f49cc80  syz-fuzzer
100120                   S       uwait   0xfffff800048be180  syz-fuzzer
100121                   S       uwait   0xfffff800048be280  syz-fuzzer
  760   758   760     0  SWs     pause   0xfffff8003f0dbae8  csh
  758   682   758     0  Ss      select  0xfffff80026edcac0  sshd
  742     1   742     0  Ss+     ttyin   0xfffff80004697cb0  getty
  741     1   741     0  Ss+     ttyin   0xfffff800049910b0  getty
  740     1   740     0  Ss+     ttyin   0xfffff800049914b0  getty
  739     1   739     0  Ss+     ttyin   0xfffff800049918b0  getty
  738     1   738     0  Ss+     ttyin   0xfffff80004991cb0  getty
  737     1   737     0  Ss+     ttyin   0xfffff800049860b0  getty
  736     1   736     0  Ss+     ttyin   0xfffff800049864b0  getty
  735     1   735     0  Ss+     ttyin   0xfffff800049868b0  getty
  734     1   734     0  Ss+     ttyin   0xfffff80004986cb0  getty
  686     1   686     0  Ss      nanslp  0xffffffff8252ed00  cron
  682     1   682     0  Ss      select  0xfffff80026faebc0  sshd
  495     1   495     0  Ss      select  0xfffff80026edcc40  syslogd
  424     1   424     0  Ss      wait    0xfffff80004b27000  devd
  423     1   423    65  Ss      select  0xfffff80004b2e540  dhclient
  338     1   338     0  Ss      select  0xfffff80026edcdc0  dhclient
  335     1   335     0  Ss      select  0xfffff80026edcd40  dhclient
   23     0     0     0  DL      syncer  0xffffffff8261c0b8  [syncer]
   22     0     0     0  DL      vlruwt  0xfffff800049ad520  [vnlru]
   21     0     0     0  DL      (threaded)                  [bufdaemon]
100070                   D       qsleep  0xffffffff8261b180  [bufdaemon]
100071                   D       -       0xffffffff8200ac80  [bufspacedaemon-0]
100086                   D       sdflush 0xfffff80004a4e4e8  [/ worker]
   20     0     0     0  DL      psleep  0xffffffff82642648  [vmdaemon]
   19     0     0     0  DL      (threaded)                  [pagedaemon]
100068                   D       psleep  0xffffffff82636ab8  [dom0]
100076                   D       launds  0xffffffff82636ac4  [laundry: dom0]
100077                   D       umarcl  0xffffffff814eb9f0  [uma]
   18     0     0     0  DL      -       0xffffffff823634f8  [rand_harvestq]
   17     0     0     0  DL      waiting 0xffffffff82e16818  [sctp_iterator]
   16     0     0     0  DL      pftm    0xffffffff82bdc390  [pf purge]
   15     0     0     0  DL      -       0xffffffff8261a75c  [soaiod4]
    9     0     0     0  DL      -       0xffffffff8261a75c  [soaiod3]
    8     0     0     0  DL      -       0xffffffff8261a75c  [soaiod2]
    7     0     0     0  DL      -       0xffffffff8261a75c  [soaiod1]
    6     0     0     0  DL      (threaded)                  [cam]
100034                   D       -       0xffffffff8223b240  [doneq0]
100067                   D       -       0xffffffff8223b110  [scanner]
    5     0     0     0  DL      crypto_ 0xfffff8000417eb90  [crypto returns 1]
    4     0     0     0  DL      crypto_ 0xfffff8000417eb30  [crypto returns 0]
    3     0     0     0  DL      crypto_ 0xffffffff82633fb0  [crypto]
   14     0     0     0  DL      seqstat 0xfffff80004301888  [sequencer 00]
   13     0     0     0  DL      (threaded)                  [geom]
100025                   D       -       0xffffffff8250e8a0  [g_event]
100026                   D       -       0xffffffff8250e8a8  [g_up]
100027                   D       -       0xffffffff8250e8b0  [g_down]
    2     0     0     0  DL      (threaded)                  [KTLS]
100018                   D       -       0xfffff80004184d00  [thr_0]
100019                   D       -       0xfffff80004184d80  [thr_1]
   12     0     0     0  RL      (threaded)                  [intr]
100011                   I                                   [swi6: task queue]
100012                   I                                   [swi6: Giant taskq]
100016                   I                                   [swi5: fast taskq]
100020                   I                                   [swi1: netisr 0]
100021                   Run     CPU 1                       [swi4: clock (0)]
100022                   I                                   [swi4: clock (1)]
100023                   I                                   [swi3: vm]
100035                   I                                   [irq24: virtio_pci0]
100036                   I                                   [irq25: virtio_pci0]
100037                   I                                   [irq26: virtio_pci0]
100038                   I                                   [irq27: virtio_pci0]
100039                   I                                   [irq28: virtio_pci1]
100040                   I                                   [irq29: virtio_pci1]
100041                   I                                   [irq30: virtio_pci1]
100042                   I                                   [irq31: virtio_pci1]
100043                   I                                   [irq32: virtio_pci1]
100048                   I                                   [irq10: virtio_pci2]
100050                   I                                   [irq1: atkbd0]
100051                   I                                   [irq12: psm0]
100052                   I                                   [swi0: uart uart++]
100060                   I                                   [swi1: pf send]
100074                   I                                   [swi1: hpts]
100075                   I                                   [swi1: hpts]
   11     0     0     0  RL      (threaded)                  [idle]
100003                   Run     CPU 0                       [idle: cpu0]
100004                   CanRun                              [idle: cpu1]
    1     0     1     0  SLs     wait    0xfffff80004292520  [init]
   10     0     0     0  DL      audit_w 0xffffffff826344d0  [audit]
    0     0     0     0  DLs     (threaded)                  [kernel]
100000                   D       swapin  0xffffffff8250ee30  [swapper]
100005                   D       -       0xfffff800042aee00  [if_io_tqg_0]
100006                   D       -       0xfffff800042aed00  [if_io_tqg_1]
100007                   D       -       0xfffff800042aec00  [if_config_tqg_0]
100008                   D       -       0xfffff800042aeb00  [softirq_0]
100009                   D       -       0xfffff800042aea00  [softirq_1]
100010                   D       -       0xfffff800042ae900  [inm_free taskq]
100013                   D       -       0xfffff800042ae600  [aiod_kick taskq]
100014                   D       -       0xfffff800042ae500  [thread taskq]
100015                   D       -       0xfffff800042ae400  [in6m_free taskq]
100017                   D       -       0xfffff800042ae200  [kqueue_ctx taskq]
100024                   D       -       0xfffff800042ae100  [firmware taskq]
100029                   D       -       0xfffff800042f5400  [crypto_0]
100030                   D       -       0xfffff800042f5400  [crypto_1]
100044                   D       -       0xfffff800044c3000  [vtnet0 rxq 0]
100045                   D       -       0xfffff8000467de00  [vtnet0 txq 0]
100046                   D       -       0xfffff8000467dd00  [vtnet0 rxq 1]
100047                   D       -       0xfffff8000467dc00  [vtnet0 txq 1]
100049                   D       vtbslp  0xfffff80004686480  [virtio_balloon]
100053                   D       -       0xfffff8000467d000  [mca taskq]
100058                   D       -       0xffffffff81d1b2e0  [deadlkres]
100063                   D       -       0xfffff80004987e00  [acpi_task_0]
100064                   D       -       0xfffff80004987e00  [acpi_task_1]
100065                   D       -       0xfffff80004987e00  [acpi_task_2]
100066                   D       -       0xfffff8000447dc00  [CAM taskq]
db> show all locks
db> show malloc
              Type        InUse        MemUse     Requests
           pf_hash            5        11524K            5
            devbuf         4214         4339K         4242
          tcp_hpts            5         3201K            5
             vtbuf           24         1968K           46
         sysctloid        29217         1704K        29281
              kobj          336         1344K          496
            newblk            5         1025K        39227
          vfscache            3         1025K            3
               pcb           26          537K        17832
          inodedep           10          516K        50474
         ufs_quota            1          512K            1
          vfs_hash            1          512K            1
           callout            2          512K            2
              intr            4          472K            4
           subproc          143          275K        39798
            acpica         1674          184K        52377
         vnet_data            1          168K            1
           tidhash            3          141K            3
           pagedep           10          131K        84223
        tfo_ccache            1          128K            1
               sem            4          106K            4
            DEVFS1          105          105K          122
          filedesc           16          105K        77295
            linker          254           97K          312
               BPF           46           88K           86
               bus          979           79K         3034
          mtx_pool            2           72K            2
          syncache            1           68K            1
           pf_rule           64           64K          168
          acpitask            1           64K            1
       ddb_capture            1           64K            1
            module          507           64K          507
              umtx          342           43K          342
           kdtrace          186           36K       120109
              temp           35           33K         4796
         hostcache            1           32K            1
               shm            1           32K          428
            DEVFS3          124           31K          134
               msg            4           30K            4
            ifaddr           90           28K           99
        gtaskqueue           18           26K           18
              vmem            3           22K            4
            kbdmux            6           22K            6
        DEVFS_RULE           56           20K           56
         ufs_mount            5           17K            6
              proc            3           17K            3
               tty           16           16K           16
           ithread           99           16K           99
       ether_multi          172           14K          285
            bus-sc           30           14K         1415
            KTRACE          100           13K          100
             ifnet            7           13K            7
           lltable           40           12K           85
              kenv           92           12K           92
      eventhandler          132           12K          132
         in6_multi           89           11K          166
              GEOM           60           10K          489
              rman           82           10K          423
         sctp_timw           34            9K           34
         bmsafemap            2            9K        43298
              UART           12            9K           12
           devstat            4            9K            4
               rpc            2            8K            2
             shmfd            1            8K         1143
       pfs_vncache            1            8K            1
         pfs_nodes           20            8K           20
     audit_evclass          233            8K          291
            kqueue           64            7K        41586
           CAM DEV            3            6K          510
            plimit           24            6K          586
              cred           24            6K          937
             selfd           87            6K       514875
            dirrem           21            6K        42068
            select           42            6K           42
            sglist            5            6K            5
         CAM queue            5            6K         1528
         taskqueue           48            6K           48
            DEVFSP           78            5K          200
          pf_ifnet           10            5K           19
           session           34            5K           72
              pgrp           34            5K           72
                vt           11            5K           11
               UMA          254            5K          254
           memdesc            1            4K            1
               MCA           32            4K           32
       ufs_dirhash            8            4K           26
          kcovinfo           64            4K          170
             evdev            4            4K            4
          routetbl           20            4K           30
             lockf           32            4K          219
             hhook           13            4K           13
         proc-args           53            3K          852
          terminal           11            3K           11
           acpisem           22            3K           22
          freefile           21            3K        42064
           uidinfo            3            3K          455
          sctp_ifa           17            3K           37
        local_apic            1            2K            1
           io_apic            1            2K            1
         ipsec-saq            2            2K            2
            ip6ndp           12            2K           33
            Unitno           28            2K           45
           CAM XPT           22            2K          543
          in_multi            6            2K           14
       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            8
       vnodemarker            2            1K           68
      NFSD session            1            1K            1
        CAM periph            4            1K          271
          sctp_ifn            6            1K           37
             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
             mkdir            5            1K        77208
            diradd            5            1K        42129
 encap_export_host           12            1K           12
          procdesc            5            1K           28
            crypto            3            1K            3
         newdirblk            4            1K        38604
              pfil            4            1K            4
           CAM SIM            2            1K            2
              cdev            2            1K            2
    chacha20random            1            1K            1
       inpcbpolicy           11            1K        17294
               osd            3            1K            9
            vnodes            1            1K            1
              ktls            1            1K            1
      NFSD lckfile            1            1K            1
     NFSD V4client            1            1K            1
             DEVFS            9            1K           10
            feeder            7            1K            7
        loginclass            3            1K            6
            prison            6            1K            6
     CAM dev queue            2            1K            2
 CAM I/O Scheduler            1            1K            1
            apmdev            1            1K            1
          atkbddev            2            1K            2
          CAM path            4            1K         1034
          freework            1            1K        38607
           tcpfunc            2            1K            2
          pmchooks            1            1K            1
            soname            4            1K        15296
          nexusdev            5            1K            5
          filecaps            5            1K         1869
          sctp_vrf            1            1K            1
           entropy            2            1K           60
              vnet            1            1K            1
               pmc            1            1K            1
          acpiintr            1            1K            1
              cpus            2            1K            2
    vnet_data_free            1            1K            1
           Per-cpu            1            1K            1
          p1003.1b            1            1K            1
        sctp_mcore            0            0K            0
        sctp_socko            0            0K          182
         sctp_iter            0            0K           29
         sctp_mvrf            0            0K            0
         sctp_cpal            0            0K            0
         sctp_cmsg            0            0K            0
         sctp_stre            0            0K            0
         sctp_athi            0            0K            0
         sctp_athm            0            0K         7887
         sctp_atky            0            0K         8384
         sctp_atcl            0            0K         7887
         sctp_a_it            0            0K           29
         sctp_aadr            0            0K            0
         sctp_stro            0            0K          497
         sctp_stri            0            0K            0
          sctp_map            0            0K          994
          pf_table            0            0K            0
           pf_altq            0            0K            0
           pf_osfp            0            0K            0
           pf_temp            0            0K            0
            nvlist            0            0K            0
          SCSI ENC            0            0K            0
           SCSI sa            0            0K            0
        madt_table            0            0K            2
         scsi_pass            0            0K            0
         ciss_data            0            0K            0
          smartpqi            0            0K            0
            pvscsi            0            0K            0
           ath_hal            0            0K            0
            athdev            0            0K            0
           ata_pci            0            0K            0
           ata_dma            0            0K            0
       ata_generic            0            0K            0
               amr            0            0K            0
           scsi_da            0            0K           69
              iavf            0            0K            0
               ixl            0            0K            0
            ata_da            0            0K            0
           scsi_ch            0            0K            0
           scsi_cd            0            0K            0
            USBdev            0            0K            0
               USB            0            0K            0
       AHCI driver            0            0K            0
        ice-resmgr            0            0K            0
         ice-osdep            0            0K            0
               ice            0            0K            0
             axgbe            0            0K            0
       fpukern_ctx            0            0K            0
               agp            0            0K            0
          xen_intr            0            0K            0
           xen_hvm            0            0K            0
         legacydrv            0            0K            0
            qpidrv            0            0K            0
           nvme_da            0            0K            0
      dmar_idpgtbl            0            0K            0
          dmar_dom            0            0K            0
          dmar_ctx            0            0K            0
           acpipwr            0            0K            0
            twsbuf            0            0K            0
      twe_commands            0            0K            0
              isci            0            0K            0
      iommu_dmamap            0            0K            0
      twa_commands            0            0K            0
     hyperv_socket            0            0K            0
           bxe_ilt            0            0K            0
            xenbus            0            0K            0
       tcp_log_dev            0            0K            9
      midi buffers            0            0K            0
             mixer            0            0K            0
     vm_fictitious            0            0K            0
              ac97            0            0K            0
             hdacc            0            0K            0
              hdac            0            0K            0
              hdaa            0            0K            0
         acpi_perf            0            0K            0
         acpicmbat            0            0K            0
       SIIS driver            0            0K            0
           CAM CCB            0            0K       100761
           UMAHash            0            0K            0
         vm_pgdata            0            0K            0
           jblocks            0            0K            0
          savedino            0            0K       121948
          sentinel            0            0K            0
            jfsync            0            0K            0
            jtrunc            0            0K            0
             sbdep            0            0K           31
           jsegdep            0            0K            0
              jseg            0            0K            0
         jfreefrag            0            0K            0
          jfreeblk            0            0K            0
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            jmvref            0            0K            0
           jremref            0            0K            0
           jaddref            0            0K            0
           freedep            0            0K            0
          freeblks            0            0K        38606
          freefrag            0            0K            6
        allocindir            0            0K            0
          indirdep            0            0K           10
       allocdirect            0            0K            0
          ufs_trim            0            0K            0
           mactemp            0            0K            0
     audit_trigger            0            0K            0
 audit_pipe_presel            0            0K            0
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        audit_pipe            0            0K            0
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        audit_cred            0            0K            0
             xform            0            0K            0
               NLM            0            0K            0
    ipsec-spdcache            0            0K            0
         ipsec-reg            0            0K            0
        ipsec-misc            0            0K            0
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            ip6opt            0            0K          883
       ip6_msource            0            0K            0
      ip6_moptions            0            0K           54
       in6_mfilter            0            0K           36
             frag6            0            0K            0
            tcplog            0            0K            0
               PUC            0            0K            0
               LRO            0            0K            0
      newreno data            0            0K            0
        ip_msource            0            0K            0
       ip_moptions            0            0K          114
        in_mfilter            0            0K            0
              ipid            0            0K            0
         80211scan            0            0K            0
      80211ratectl            0            0K            0
        80211power            0            0K            0
       80211nodeie            0            0K            0
         80211node            0            0K            0
      80211mesh_gt            0            0K            0
      80211mesh_rt            0            0K            0
         80211perr            0            0K            0
         80211prep            0            0K            0
         80211preq            0            0K            0
          80211dfs            0            0K            0
       80211crypto            0            0K            0
          80211vap            0            0K            0
             iflib            0            0K            0
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               gif            0            0K            0
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              zlib            0            0K            0
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            statfs            0            0K        38786
     namei_tracker            0            0K          500
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agtiapi_MemAlloc malloc            0            0K            0
    osti_cacheable            0            0K            0
          tempbuff            0            0K            0
          tempbuff            0            0K            0
ag_tgt_map_t malloc            0            0K            0
ag_slr_map_t malloc            0            0K            0
lDevFlags * malloc            0            0K            0
tiDeviceHandle_t * malloc            0            0K            0
ag_portal_data_t malloc            0            0K            0
ag_device_t malloc            0            0K            0
     STLock malloc            0            0K            0
          CCB List            0            0K            0
            sr_iov            0            0K            0
               OCS            0            0K            0
               OCS            0            0K            0
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                ix            0            0K            0
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db> show uma
              Zone   Size    Used    Free    Requests  Sleeps  Bucket  Total Mem    XFree
      mbuf_cluster   2048    8966     532        9982       0     241   19451904        0
        RADIX NODE    144    5203   28170     3973646       0      62    4805712        0
       mbuf_packet    256    8281     557       96863       0     254    2262528        0
   mbuf_jumbo_page   4096       0     512       13894       0     241    2097152        0
          BUF TRIE    144     189   13279       60927       0      62    1939392        0
       malloc-4096   4096     397       7       42691       0       2    1654784        0
        malloc-384    384    4188       2        4461       0      30    1608960        0
        malloc-128    128    9597     292       52000       0     126    1265792        0
              pbuf    832       0     969           0       0       2     806208        0
       UMA Slabs 0    112    6146     115        6310       0     126     701232        0
         FFS inode   1128     537      51       43360       0       9     663264        0
              mbuf    256    1284     513      147831       0     254     460032        0
         VM OBJECT    264    1473     102      565873       0      30     415800        0
      malloc-65536  65536       4       2         505       0       1     393216        0
             VNODE    488     574      90       43399       0      30     324032        0
        256 Bucket   2048     131      19        8183       0       8     307200        0
            THREAD   1792     145      26       40758       0       8     306432        0
            socket    944      36     268       27639       0     241     286976        0
         malloc-64     64    2992     536       42755       0     254     225792        0
         malloc-16     16   12228     272       12370       0     254     200000        0
      malloc-16384  16384       5       7       38642       0       1     196608        0
         MAP ENTRY     96    1545     429     2202826       0     126     189504        0
         UMA Zones    768     226       3         226       0      16     175872        0
       FFS2 dinode    256     537     138       43360       0      62     172800        0
         malloc-32     32    4769     523       44506       0     254     169344        0
         64 Bucket    512     257      63       64696       0      30     163840        0
        malloc-128    128    1205      35       24524       0     126     158720        0
        malloc-256    256     284     331      126171       0      62     157440        0
       S VFS Cache    104    1067     376       49035       0     126     150072        0
             tcpcb   1048       4     139        6876       0     241     149864        0
       malloc-1024   1024     118      14        1928       0      16     135168        0
      malloc-65536  65536       2       0           2       0       1     131072        0
      malloc-65536  65536       1       1           9       0       1     131072        0
           VMSPACE   2544      38      13       39694       0       4     129744        0
        malloc-256    256      80     400      208693       0      62     122880        0
        malloc-128    128     876      23        2218       0     126     115072        0
        128 Bucket   1024      52      59        9468       0      16     113664        0
         vmem btag     56    1884     120        1886       0     254     112224        0
            DEVCTL   1024       2     106         137       0       0     110592        0
              PROC   1312      60      21       39715       0       8     106272        0
         sctp_asoc   2288       0      45         497       0     241     102960        0
       malloc-4096   4096      22       3          46       0       2     102400        0
      malloc-16384  16384       5       1         144       0       1      98304        0
        malloc-384    384      52     188       50525       0      30      92160        0
         filedesc0   1080      61      23       39716       0       8      90720        0
       malloc-1024   1024      80       4        1329       0      16      86016        0
        malloc-128    128     588      63        5122       0     126      83328        0
          UMA Kegs    384     212       1         212       0      30      81792        0
         tcp_inpcb    488       4     156        6876       0     241      78080        0
         malloc-64     64     645     552       44754       0     254      76608        0
       malloc-8192   8192       7       2         124       0       1      73728        0
       malloc-2048   2048       6      30      108348       0       8      73728        0
           sctp_ep   1280       0      57        7390       0     241      72960        0
        malloc-256    256     147     138       87807       0      62      72960        0
      malloc-65536  65536       1       0           1       0       1      65536        0
      malloc-65536  65536       1       0           1       0       1      65536        0
      malloc-32768  32768       0       2         148       0       1      65536        0
      malloc-32768  32768       2       0           2       0       1      65536        0
        malloc-128    128      32     464      119449       0     126      63488        0
       malloc-4096   4096      13       2          25       0       2      61440        0
       malloc-4096   4096      14       1          19       0       2      61440        0
         32 Bucket    256      65     130      354102       0      62      49920        0
       malloc-2048   2048       7      17         697       0       8      49152        0
             g_bio    408       0     120      400698       0      30      48960        0
         malloc-64     64     669      87        1062       0     254      48384        0
              pipe    744      23      42       21032       0      16      48360        0
        malloc-128    128     111     261       38724       0     126      47616        0
        malloc-256    256      26     139       78153       0      62      42240        0
             NAMEI   1024       0      40      204876       0      16      40960        0
       malloc-8192   8192       5       0           5       0       1      40960        0
            pcpu-8      8    4520     600        4968       0     254      40960        0
        sctp_raddr    736       0      55         497       0     241      40480        0
             Files     80     232     268      138612       0     126      40000        0
            clpbuf    832       0      48         139       0      16      39936        0
             ripcb    488       5      75        3959       0     241      39040        0
     udplite_inpcb    488       0      80        4526       0     241      39040        0
        malloc-384    384      83      17         137       0      30      38400        0
           DIRHASH   1024       0      36          36       0      16      36864        0
       malloc-1024   1024       1      35         498       0      16      36864        0
      malloc-32768  32768       1       0           1       0       1      32768        0
      malloc-16384  16384       2       0           2       0       1      32768        0
           pcpu-64     64     451      61         451       0     254      32768        0
          ksiginfo    112      66     222         909       0     126      32256        0
        malloc-256    256      87      33         752       0      62      30720        0
       malloc-4096   4096       5       2         457       0       2      28672        0
       malloc-2048   2048       0      14         683       0       8      28672        0
         16 Bucket    144      59     137      458330       0      62      28224        0
          4 Bucket     48       7     581        7342       0     254      28224        0
             KNOTE    160      29     146      352792       0      62      28000        0
          8 Bucket     80      41     309       38083       0     126      28000        0
        malloc-384    384       1      69        7888       0      30      26880        0
         TURNSTILE    136     172      17         172       0      62      25704        0
       malloc-8192   8192       2       1           4       0       1      24576        0
               PWD     32      19     737       38744       0     254      24192        0
            ttyinq    160     135      15         300       0      62      24000        0
         udp_inpcb    488       2      46        1933       0     241      23424        0
           ttyoutq    256      72      18         160       0      62      23040        0
       tcp_bbr_pcb    832       0      27         349       0      16      22464        0
       malloc-4096   4096       0       5       38786       0       2      20480        0
       malloc-2048   2048       6       4        1731       0       8      20480        0
       malloc-1024   1024      16       4          16       0      16      20480        0
          2 Bucket     32      57     573       25032       0     254      20160        0
        SLEEPQUEUE     88     172      52         172       0     126      19712        0
       Mountpoints   2752       2       5           2       0       4      19264        0
        malloc-384    384      27      23          72       0      30      19200        0
      malloc-16384  16384       1       0           1       0       1      16384        0
       malloc-8192   8192       2       0           2       0       1      16384        0
       malloc-8192   8192       2       0           2       0       1      16384        0
       malloc-8192   8192       2       0           2       0       1      16384        0
       malloc-2048   2048       6       2           6       0       8      16384        0
         malloc-64     64      94     158      515022       0     254      16128        0
         malloc-32     32     261     243       11073       0     254      16128        0
      vtnet_tx_hdr     24       0     668       53797       0     254      16032        0
        malloc-128    128      83      41         672       0     126      15872        0
     routing nhops    256      24      36          67       0      62      15360        0
             unpcb    256      20      40        2883       0     241      15360        0
        malloc-256    256      16      44        1099       0      62      15360        0
       malloc-2048   2048       2       4       19327       0       8      12288        0
       malloc-1024   1024       7       5           7       0      16      12288        0
        malloc-512    512       5      19         672       0      30      12288        0
        malloc-512    512       3      21         341       0      30      12288        0
        malloc-512    512      10      14          21       0      30      12288        0
         malloc-64     64      26     163       19102       0     254      12096        0
         malloc-64     64     135      54         187       0     254      12096        0
         malloc-32     32      51     327       24008       0     254      12096        0
         malloc-32     32     200     178        1646       0     254      12096        0
         malloc-16     16     513     237        1962       0     254      12000        0
        malloc-256    256      30      15          57       0      62      11520        0
       malloc-4096   4096       2       0           2       0       2       8192        0
       malloc-2048   2048       3       1           3       0       8       8192        0
       malloc-1024   1024       4       4          15       0      16       8192        0
       malloc-1024   1024       5       3           5       0      16       8192        0
        malloc-512    512       0      16         200       0      30       8192        0
        malloc-512    512       9       7           9       0      30       8192        0
           rtentry    176      31      15          67       0      62       8096        0
          rl_entry     40      78     124          78       0     254       8080        0
        sctp_laddr     48       0     168         330       0     254       8064        0
             udpcb     32       2     250        6459       0     254       8064        0
         malloc-64     64       1     125          20       0     254       8064        0
         malloc-64     64       6     120          52       0     254       8064        0
         malloc-32     32      13     239          30       0     254       8064        0
         malloc-32     32      56     196         163       0     254       8064        0
         malloc-32     32       6     246         874       0     254       8064        0
         malloc-32     32      17     235         117       0     254       8064        0
         malloc-16     16       1     499        8722       0     254       8000        0
         malloc-16     16       5     495           5       0     254       8000        0
         malloc-16     16      10     490          49       0     254       8000        0
         malloc-16     16      31     469       24587       0     254       8000        0
         malloc-16     16       1     499         122       0     254       8000        0
         malloc-16     16       3     497        7934       0     254       8000        0
       tcp_bbr_map    128       0      62         123       0     126       7936        0
        malloc-128    128      19      43         317       0     126       7936        0
              kenv    258       3      27        1023       0      30       7740        0
        malloc-384    384      12       8          13       0      30       7680        0
        malloc-256    256       3      27        7633       0      62       7680        0
           tcp_log    416       0      18           9       0     241       7488        0
     FPU_save_area    832       1       8           1       0      16       7488        0
            cpuset    104       7      55           7       0     126       6448        0
 epoch_record pcpu    256       4      12           4       0      62       4096        0
       malloc-4096   4096       0       1           2       0       2       4096        0
       malloc-2048   2048       2       0           2       0       8       4096        0
        malloc-512    512       2       6           2       0      30       4096        0
           pcpu-16     16       7     249           7       0     254       4096        0
sctp_stream_msg_out    112       0      36          18       0     241       4032        0
         hostcache     96       1      41           1       0     241       4032        0
          syncache    168       0      24           4       0     241       4032        0
       UMA Slabs 1    176       9      13           9       0      62       3872        0
        malloc-384    384       1       9           1       0      30       3840        0
        malloc-384    384       0      10           5       0      30       3840        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_ack     48       0       0           0       0     254          0        0
       sctp_asconf     40       0       0           0       0     254          0        0
        sctp_readq    152       0       0           0       0     241          0        0
        sctp_chunk    152       0       0           0       0     241          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     241          0        0
     pf state keys     88       0       0           0       0     126          0        0
         pf states    296       0       0           0       0     241          0        0
           pf tags    104       0       0           0       0     126          0        0
          pf mtags     48       0       0           0       0     254          0        0
      tcp_log_node    120       0       0           0       0     126          0        0
    tcp_log_bucket    176       0       0           0       0      62          0        0
          tcpreass     48       0       0           0       0     254          0        0
tfo_ccache_entries     80       0       0           0       0     126          0        0
               tfo      4       0       0           0       0     254          0        0
          sackhole     32       0       0           0       0     254          0        0
             tcptw     88       0       0           0       0     241          0        0
               ipq     56       0       0           0       0     254          0        0
    IPsec SA lft_c     16       0       0           0       0     254          0        0
            itimer    352       0       0           0       0      30          0        0
            AIOLIO    272       0       0           0       0      30          0        0
             AIOCB    744       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
        TMPFS node    224       0       0           0       0      62          0        0
           NCLNODE    592       0       0           0       0      16          0        0
     LTS VFS Cache    360       0       0           0       0      30          0        0
       L VFS Cache    320       0       0           0       0      30          0        0
     STS VFS Cache    144       0       0           0       0      62          0        0
    crypto_session     72       0       0           0       0     126          0        0
           cryptop    280       0       0           0       0      30          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     241          0        0
     mbuf_jumbo_9k   9216       0       0           0       0     241          0        0
      audit_record   1280       0       0           0       0       8          0        0
         domainset     40       0       0           0       0     254          0        0
        MAC labels     40       0       0           0       0     254          0        0
            vnpbuf    832       0       0           0       0      49          0        0
            mdpbuf    832       0       0           0       0       4          0        0
           nfspbuf    832       0       0           0       0      16          0        0
            swwbuf    832       0       0           0       0       8          0        0
            swrbuf    832       0       0           0       0      16          0        0
          umtx_shm     88       0       0           0       0     126          0        0
           umtx pi     96       0       0           0       0     126          0        0
rangeset pctrie nodes    144       0       0           0       0      62          0        0
      malloc-65536  65536       0       0           0       0       1          0        0
      malloc-65536  65536       0       0           0       0       1          0        0
      malloc-65536  65536       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-16384  16384       0       0           0       0       1          0        0
      malloc-16384  16384       0       0           0       0       1          0        0
      malloc-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-1024   1024       0       0           0       0      16          0        0
        malloc-512    512       0       0           0       0      30          0        0
        malloc-512    512       0       0           0       0      30          0        0
           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 (3):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets Title
ci-freebsd-main 2020/11/14 15:11 freebsd 5374f9a26da6 1bf9a662 console log report
ci-freebsd-i386 2020/11/18 21:13 freebsd 7b82af2e8801 0767f13f console log report
ci-freebsd-i386 2020/11/16 17:08 freebsd a41d904f70e8 1bf9a662 console log report
* Struck through repros no longer work on HEAD.