syzbot


panic: ktrace_enter: flag set

Status: fixed on 2021/05/22 17:51
Reported-by: syzbot+d0a4de45e58d3c08af4b@syzkaller.appspotmail.com
Fix commit: e4b16f2fb18b ktrace: Avoid recursion in namei()
First crash: 627d, last: 625d

Sample crash report:
panic: ktrace_enter: flag set
cpuid = 0
time = 1621562441
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x47/frame 0xfffffe0088747610
vpanic() at vpanic+0x1c7/frame 0xfffffe0088747670
panic() at panic+0x43/frame 0xfffffe00887476d0
ktrnamei() at ktrnamei+0x13f/frame 0xfffffe0088747700
namei() at namei+0xd53/frame 0xfffffe00887477c0
vn_open_cred() at vn_open_cred+0x6f5/frame 0xfffffe0088747950
sys_ktrace() at sys_ktrace+0x221/frame 0xfffffe0088747ab0
amd64_syscall() at amd64_syscall+0x247/frame 0xfffffe0088747bf0
fast_syscall_common() at fast_syscall_common+0xf8/frame 0xfffffe0088747bf0
--- syscall (0, FreeBSD ELF64, nosys), rip = 0x2b406a, rsp = 0x7fffdfffdf78, rbp = 0x7fffdfffdfb0 ---
KDB: enter: panic
[ thread pid 793 tid 100119 ]
Stopped at      kdb_enter+0x67: movq    $0,0x16391de(%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                       0x80
rdx         0xffffffff819c2668
rbx                          0
rsp         0xfffffe00887475f0
rbp         0xfffffe0088747610
rsi                        0x1
rdi                          0
r8                           0
r9          0x8080808080808080
r10         0xfffffe00887474e0
r11              0x1ff77fff59c
r12         0xffffffff82267b80  ddb_dbbe
r13                          0
r14         0xffffffff81a73b1f
r15         0xffffffff81a73b1f
rip         0xffffffff8112fc27  kdb_enter+0x67
rflags                    0x86
kdb_enter+0x67: movq    $0,0x16391de(%rip)
db> show proc
Process 793 (syz-executor0725507) at 0xfffff8002549e000:
 state: NORMAL
 uid: 0  gids: 0, 0, 5
 parent: pid 791 at 0xfffff800254e2538
 ABI: FreeBSD ELF64
 flag: 0x10004080  flag2: 0
 arguments: ./syz-executor072550770
 reaper: 0xfffff80004bc7538 reapsubtree: 1
 sigparent: 20
 vmspace: 0xfffffe00042273e0
   (map 0xfffffe00042273e0)
   (map.pmap 0xfffffe00042274a0)
   (pmap 0xfffffe0004227500)
 threads: 3
100116                   S       nanslp  0xffffffff8273c561  syz-executor0725507
100119                   Run     CPU 0                       syz-executor0725507
100120                   S       uwait   0xfffff80015d3b700  syz-executor0725507
db> ps
  pid  ppid  pgrp   uid  state   wmesg   wchan               cmd
  793   791   791     0  R       (threaded)                  syz-executor0725507
100116                   S       nanslp  0xffffffff8273c561  syz-executor0725507
100119                   Run     CPU 0                       syz-executor0725507
100120                   S       uwait   0xfffff80015d3b700  syz-executor0725507
  791   789   791     0  Ss      pause   0xfffff800254e25e8  csh
  789   694   789     0  Ss      select  0xfffff800254fb740  sshd
  760     1   760     0  Ss+     ttyin   0xfffff80015465cb0  getty
  759     1   759     0  Ss+     ttyin   0xfffff80015afe4b0  getty
  758     1   758     0  Ss+     ttyin   0xfffff80015afecb0  getty
  757     1   757     0  Ss+     ttyin   0xfffff80015a864b0  getty
  756     1   756     0  Ss+     ttyin   0xfffff80015a86cb0  getty
  755     1   755     0  Ss+     ttyin   0xfffff80015a8a4b0  getty
  754     1   754     0  Ss+     ttyin   0xfffff80015a8acb0  getty
  753     1   753     0  Ss+     ttyin   0xfffff80015a8d4b0  getty
  752     1   752     0  Ss+     ttyin   0xfffff80015a8dcb0  getty
  750     1    24     0  S+      piperd  0xfffff800254c7ba0  logger
  749   748    24     0  S+      nanslp  0xffffffff8273c560  sleep
  748     1    24     0  S+      wait    0xfffff80015ca3000  sh
  698     1   698     0  Ss      nanslp  0xffffffff8273c560  cron
  694     1   694     0  Ss      select  0xfffff80025493ec0  sshd
  507     1   507     0  Ss      select  0xfffff80015dd7a40  syslogd
  436     1   436     0  Ss      select  0xfffff80015d37740  devd
  435     1   435    65  Ss      select  0xfffff80015e1aa40  dhclient
  350     1   350     0  Ss      select  0xfffff80015e1a8c0  dhclient
  347     1   347     0  Ss      select  0xfffff80015d92440  dhclient
   23     0     0     0  DL      vlruwt  0xfffff80015ca3538  [vnlru]
   22     0     0     0  DL      syncer  0xffffffff8282b9d0  [syncer]
   21     0     0     0  DL      (threaded)                  [bufdaemon]
100081                   D       qsleep  0xffffffff8282aa80  [bufdaemon]
100088                   D       -       0xffffffff8220ae80  [bufspacedaemon-0]
100095                   D       sdflush 0xfffff80004dfc4e8  [/ worker]
   20     0     0     0  DL      psleep  0xffffffff828528c8  [vmdaemon]
   19     0     0     0  DL      (threaded)                  [pagedaemon]
100079                   D       psleep  0xffffffff82846d38  [dom0]
100086                   D       launds  0xffffffff82846d44  [laundry: dom0]
100087                   D       umarcl  0xffffffff815cb670  [uma]
   18     0     0     0  DL      -       0xffffffff82570908  [rand_harvestq]
   17     0     0     0  DL      waiting 0xffffffff82fbb828  [sctp_iterator]
   16     0     0     0  DL      pftm    0xffffffff82e133c0  [pf purge]
   15     0     0     0  DL      -       0xffffffff828280dc  [soaiod4]
    9     0     0     0  DL      -       0xffffffff828280dc  [soaiod3]
    8     0     0     0  DL      -       0xffffffff828280dc  [soaiod2]
    7     0     0     0  DL      -       0xffffffff828280dc  [soaiod1]
    6     0     0     0  DL      (threaded)                  [cam]
100044                   D       -       0xffffffff82447dc0  [doneq0]
100045                   D       -       0xffffffff82447d40  [async]
100078                   D       -       0xffffffff82447c10  [scanner]
   14     0     0     0  DL      seqstat 0xfffff80004dcbc88  [sequencer 00]
    5     0     0     0  DL      crypto_ 0xfffff80004d99d80  [crypto returns 1]
    4     0     0     0  DL      crypto_ 0xfffff80004d99d30  [crypto returns 0]
    3     0     0     0  DL      crypto_ 0xffffffff82844220  [crypto]
   13     0     0     0  DL      (threaded)                  [geom]
100035                   D       -       0xffffffff8271bda0  [g_event]
100036                   D       -       0xffffffff8271bda8  [g_up]
100037                   D       -       0xffffffff8271bdb0  [g_down]
    2     0     0     0  DL      (threaded)                  [KTLS]
100028                   D       -       0xfffff80004c39d00  [thr_0]
100029                   D       -       0xfffff80004c39d80  [thr_1]
   12     0     0     0  WL      (threaded)                  [intr]
100012                   I                                   [swi5: fast taskq]
100015                   I                                   [swi6: task queue]
100017                   I                                   [swi6: Giant taskq]
100030                   I                                   [swi4: clock (0)]
100031                   I                                   [swi4: clock (1)]
100032                   I                                   [swi1: netisr 0]
100033                   I                                   [swi3: vm]
100046                   I                                   [irq24: virtio_pci0]
100047                   I                                   [irq25: virtio_pci0]
100048                   I                                   [irq26: virtio_pci0]
100049                   I                                   [irq27: virtio_pci0]
100050                   I                                   [irq28: virtio_pci1]
100051                   I                                   [irq29: virtio_pci1]
100052                   I                                   [irq30: virtio_pci1]
100053                   I                                   [irq31: virtio_pci1]
100054                   I                                   [irq32: virtio_pci1]
100059                   I                                   [irq10: virtio_pci2]
100061                   I                                   [irq1: atkbd0]
100062                   I                                   [irq12: psm0]
100063                   I                                   [swi0: uart uart++]
100071                   I                                   [swi1: pf send]
100084                   I                                   [swi1: hpts]
100085                   I                                   [swi1: hpts]
   11     0     0     0  RL      (threaded)                  [idle]
100003                   CanRun                              [idle: cpu0]
100004                   Run     CPU 1                       [idle: cpu1]
    1     0     1     0  SLs     wait    0xfffff80004bc7538  [init]
   10     0     0     0  DL      audit_w 0xffffffff82844730  [audit]
    0     0     0     0  DLs     (threaded)                  [kernel]
100000                   D       swapin  0xffffffff8271c330  [swapper]
100005                   D       -       0xfffff80004c63d00  [if_config_tqg_0]
100006                   D       -       0xfffff80004c63900  [softirq_0]
100007                   D       -       0xfffff80004c63500  [softirq_1]
100008                   D       -       0xfffff80004c63100  [if_io_tqg_0]
100009                   D       -       0xfffff80004c61d00  [if_io_tqg_1]
100010                   D       -       0xfffff80004c5fd00  [in6m_free taskq]
100011                   D       -       0xfffff80004c5f900  [aiod_kick taskq]
100013                   D       -       0xfffff80004c5f100  [kqueue_ctx taskq]
100014                   D       -       0xfffff80004c58d00  [pci_hp taskq]
100016                   D       -       0xfffff80004c58500  [inm_free taskq]
100018                   D       -       0xfffff80004c53d00  [linuxkpi_irq_wq]
100019                   D       -       0xfffff80004c53900  [thread taskq]
100020                   D       -       0xfffff80004c53500  [linuxkpi_short_wq_0]
100021                   D       -       0xfffff80004c53500  [linuxkpi_short_wq_1]
100022                   D       -       0xfffff80004c53500  [linuxkpi_short_wq_2]
100023                   D       -       0xfffff80004c53500  [linuxkpi_short_wq_3]
100024                   D       -       0xfffff80004c53100  [linuxkpi_long_wq_0]
100025                   D       -       0xfffff80004c53100  [linuxkpi_long_wq_1]
100026                   D       -       0xfffff80004c53100  [linuxkpi_long_wq_2]
100027                   D       -       0xfffff80004c53100  [linuxkpi_long_wq_3]
100034                   D       -       0xfffff80004c39900  [firmware taskq]
100038                   D       -       0xfffff80004c39500  [crypto_0]
100039                   D       -       0xfffff80004c39500  [crypto_1]
100055                   D       -       0xfffff800153dc900  [vtnet0 rxq 0]
100056                   D       -       0xfffff800153dc500  [vtnet0 txq 0]
100057                   D       -       0xfffff800153dc100  [vtnet0 rxq 1]
100058                   D       -       0xfffff800153c6d00  [vtnet0 txq 1]
100060                   D       vtbslp  0xfffff80015429500  [virtio_balloon]
100064                   D       -       0xfffff800153c6900  [mca taskq]
100066                   D       -       0xffffffff81e203f0  [deadlkres]
100074                   D       -       0xfffff80015a19900  [acpi_task_0]
100075                   D       -       0xfffff80015a19900  [acpi_task_1]
100076                   D       -       0xfffff80015a19900  [acpi_task_2]
100077                   D       -       0xfffff80004c39100  [CAM taskq]
db> show all locks
db> show malloc
              Type        InUse        MemUse     Requests
         sysctloid        34288        12858K        34355
           pf_hash            5        11560K            5
            devbuf         4216         6982K         4241
          tcp_hpts            5         3219K            5
              kobj          328         2624K          488
             vtbuf           24         2064K           46
            newblk          559         1311K          604
          vfscache            3         1035K            3
            acpica         1674          649K        55230
               pcb           23          612K           77
          inodedep           30          549K           76
           callout            2          528K            2
         ufs_quota            1          520K            1
          vfs_hash            1          520K            1
              intr            4          480K            4
           subproc          101          423K          849
               bus          990          378K         3499
            linker          348          270K          397
            DEVFS1          103          206K          112
            module          512          192K          512
         vnet_data            1          176K            1
           tidhash            3          164K            3
           pagedep           10          141K           20
           kdtrace          167          139K          915
        tfo_ccache            1          136K            1
               sem            4          120K            4
              umtx          264          116K          264
               UMA          270          102K          270
     audit_evclass          236           89K          294
          mtx_pool            2           80K            2
          syncache            1           76K            1
              temp           18           71K         1635
               msg            4           68K            4
               BPF           10           68K           10
          acpitask            1           64K            1
       ddb_capture            1           64K            1
            DEVFS3          122           61K          132
        gtaskqueue           18           57K           18
              vmem            3           56K            4
        DEVFS_RULE           56           54K           56
              kenv           95           52K           95
      eventhandler          133           50K          133
           ithread           99           43K           99
              rman           84           42K          425
            ifaddr           30           40K           32
            KTRACE          101           38K          116
         taskqueue           60           36K           60
              proc            3           34K            3
         ufs_mount            5           34K            6
            bus-sc           33           34K         1710
          routetbl           50           34K          176
           devstat            4           33K            4
         hostcache            1           32K            1
               tty           16           32K           16
               shm            1           32K            1
              GEOM           60           29K          489
            kbdmux            6           28K            6
              cred           23           23K          261
         CAM queue            5           21K         1528
         pfs_nodes           20           20K           20
              UART           12           18K           12
            kqueue           46           18K          796
           pwddesc           46           18K          794
            plimit           17           17K          367
         bmsafemap            2           17K           43
              ksem            1           16K            1
               rpc            2           16K            2
             shmfd            1           16K            1
       pfs_vncache            1           16K            1
       ether_multi           40           15K           50
         proc-args           39           15K          500
       ufs_dirhash           24           14K           24
            sglist            5           13K            5
               MCA           32           12K           32
           CAM DEV            3           12K          510
                vt           11           11K           11
         in6_multi           25           11K           25
           acpisem           28           11K           28
           CAM XPT           22           11K          543
             selfd           27           11K         9303
            Unitno           27           11K           39
           session           20           10K           34
           lltable           11            9K           11
           uidinfo            3            9K           10
             ifnet            3            9K            3
           memdesc            1            8K            1
         ipsec-saq            2            8K            2
             evdev            4            8K            4
          filedesc            1            8K            1
           acpidev           20            8K           20
             hhook           15            8K           17
             mount           16            7K           90
          pf_ifnet            5            6K            6
       fpukern_ctx            3            6K            3
             lockf           16            6K           26
          terminal           11            6K           11
          freefile           13            5K           22
       ipsecpolicy            2            5K            2
 encap_export_host           12            5K           12
             clone            9            5K            9
            diradd           11            5K           41
        local_apic            1            4K            1
           io_apic            1            4K            1
            sahead            1            4K            1
          secasvar            1            4K            1
          pci_link           10            4K           10
       inpcbpolicy           10            4K          135
               msi            9            4K            9
             DEVFS            9            4K           10
             ipsec            3            3K            3
             nhops            6            3K            6
               osd            7            3K           19
          nexusdev            7            3K            7
            feeder            7            3K            7
            select            7            3K           29
            dirrem            5            3K           30
         toponodes            6            3K            6
            prison            6            3K            6
            isadev            6            3K            6
           softdep            1            2K            1
       vnodemarker            2            2K           10
      NFSD session            1            2K            1
          sctp_ifa            5            2K            6
             linux            5            2K            6
        CAM periph            4            2K          271
            crypto            4            2K            4
            ip6ndp            4            2K            5
            DEVFSP            4            2K            9
         newdirblk            4            2K            8
             mkdir            4            2K           16
          indirdep            3            2K            3
              pfil            4            2K            4
          CAM path            4            2K         1034
            soname            4            2K         3237
          filecaps            4            2K           70
           tcpfunc            3            2K            3
               tun            3            2K            3
        loginclass            3            2K            7
          in_multi            2            1K            4
    chacha20random            1            1K            1
            vnodes            1            1K            1
           CAM SIM            2            1K            2
              ktls            1            1K            1
              cdev            2            1K            2
        aesni_data            2            1K            2
          sctp_ifn            2            1K            6
              cpus            2            1K            2
          atkbddev            2            1K            2
     CAM dev queue            2            1K            2
             xform            2            1K           49
               mld            2            1K            2
              igmp            2            1K            2
           entropy            2            1K           37
      NFSD lckfile            1            1K            1
     NFSD V4client            1            1K            1
          procdesc            1            1K            6
          pmchooks            1            1K            1
          sctp_vrf            1            1K            1
            apmdev            1            1K            1
 CAM I/O Scheduler            1            1K            1
          freework            1            1K           26
    vnet_data_free            1            1K            1
              vnet            1            1K            1
           Per-cpu            1            1K            1
          p1003.1b            1            1K            1
          acpiintr            1            1K            1
               pmc            1            1K            1
        vegas data            0            0K            0
            mqdata            0            0K            0
          cdg data            0            0K            0
          chd data            0            0K            0
        dctcp data            0            0K            0
        cubic data            0            0K            0
         htcp data            0            0K            0
        sctp_mcore            0            0K            0
        sctp_socko            0            0K            0
         sctp_iter            0            0K            3
         sctp_mvrf            0            0K            0
         sctp_timw            0            0K            0
         sctp_cpal            0            0K            0
         sctp_cmsg            0            0K            0
         sctp_stre            0            0K            0
         sctp_athi            0            0K            0
         sctp_athm            0            0K            0
         sctp_atky            0            0K            0
         sctp_atcl            0            0K            0
         sctp_a_it            0            0K            3
         sctp_aadr            0            0K            0
         sctp_stro            0            0K            0
         sctp_stri            0            0K            0
          sctp_map            0            0K            0
          pf_table            0            0K            0
           pf_rule            0            0K            0
           pf_altq            0            0K            0
           pf_osfp            0            0K            0
           pf_temp            0            0K            0
            tcp_do            0            0K            0
           tcp_fsb            0            0K            0
       NFSD V4lock            0            0K            0
        madt_table            0            0K            2
          smartpqi            0            0K            0
      NFSD V4state            0            0K            0
     NFSD srvcache            0            0K            0
       msdosfs_fat            0            0K            0
     msdosfs_mount            0            0K            0
      msdosfs_node            0            0K            0
              iavf            0            0K            0
               ixl            0            0K            0
            DEVFS4            0            0K            0
            DEVFS2            0            0K            0
            gntdev            0            0K            0
       privcmd_dev            0            0K            0
        ice-resmgr            0            0K            0
         ice-osdep            0            0K            0
               ice            0            0K            0
             axgbe            0            0K            0
        evtchn_dev            0            0K            0
          xenstore            0            0K            0
         ciss_data            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
          xen_intr            0            0K            0
           xen_hvm            0            0K            0
         legacydrv            0            0K            0
            qpidrv            0            0K            0
           ath_hal            0            0K            0
            athdev            0            0K            0
      dmar_idpgtbl            0            0K            0
          dmar_dom            0            0K            0
          dmar_ctx            0            0K            0
           ata_pci            0            0K            0
           ata_dma            0            0K            0
       ata_generic            0            0K            0
              isci            0            0K            0
      iommu_dmamap            0            0K            0
               amr            0            0K            0
     hyperv_socket            0            0K            0
           bxe_ilt            0            0K            0
            xenbus            0            0K            0
            pvscsi            0            0K            0
           scsi_da            0            0K           69
     vm_fictitious            0            0K            0
            ata_da            0            0K            0
           scsi_ch            0            0K            0
           scsi_cd            0            0K            0
       AHCI driver            0            0K            0
            USBdev            0            0K            0
               USB            0            0K            0
               agp            0            0K            0
           nvme_da            0            0K            0
           UMAHash            0            0K            0
           acpipwr            0            0K            0
         acpi_perf            0            0K            0
         vm_pgdata            0            0K            0
           jblocks            0            0K            0
          savedino            0            0K           19
          sentinel            0            0K            0
            jfsync            0            0K            0
            jtrunc            0            0K            0
             sbdep            0            0K            3
           jsegdep            0            0K            0
              jseg            0            0K            0
         jfreefrag            0            0K            0
          jfreeblk            0            0K            0
           jnewblk            0            0K            0
            jmvref            0            0K            0
           jremref            0            0K            0
           jaddref            0            0K            0
           freedep            0            0K            0
          freeblks            0            0K           25
          freefrag            0            0K            7
        allocindir            0            0K            0
       allocdirect            0            0K            0
          ufs_trim            0            0K            0
           mactemp            0            0K            0
     audit_trigger            0            0K            0
 audit_pipe_presel            0            0K            0
     audit_pipeent            0            0K            0
        audit_pipe            0            0K            0
      audit_evname            0            0K            0
         audit_bsm            0            0K            0
      audit_gidset            0            0K            0
        audit_text            0            0K            0
        audit_path            0            0K            0
        audit_data            0            0K            0
        audit_cred            0            0K            0
            twsbuf            0            0K            0
        MLX5EEPROM            0            0K            0
        MLX5EEPROM            0            0K            0
        MLX5EEPROM            0            0K            0
        MLX5EEPROM            0            0K            0
         MLX5E_TLS            0            0K            0
        MLX5EEPROM            0            0K            0
        MLX5EEPROM            0            0K            0
        MLX5EEPROM            0            0K            0
            MLX5EN            0            0K            0
        MLX5EEPROM            0            0K            0
        MLX5EEPROM            0            0K            0
        MLX5EEPROM            0            0K            0
          MLX5DUMP            0            0K            0
        MLX5EEPROM            0            0K            0
        MLX5EEPROM            0            0K            0
          seq_file            0            0K            0
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               idr            0            0K            0
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               NLM            0            0K            0
    ipsec-spdcache            0            0K            0
         ipsec-reg            0            0K            0
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            ip6opt            0            0K            3
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              ipid            0            0K            0
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        80211power            0            0K            0
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         80211node            0            0K            0
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            statfs            0            0K          199
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        cl_savebuf            0            0K            6
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             mixer            0            0K            0
              ac97            0            0K            0
             hdacc            0            0K            0
              hdac            0            0K            0
              hdaa            0            0K            0
         acpicmbat            0            0K            0
       SIIS driver            0            0K            0
           CAM CCB            0            0K         1802
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agtiapi_MemAlloc malloc            0            0K            0
    osti_cacheable            0            0K            0
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          mbuf_tag            0            0K           27
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
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            sr_iov            0            0K            0
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               OCS            0            0K            0
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               iov            0            0K        13639
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db> show uma
              Zone   Size    Used    Free    Requests  Sleeps  Bucket  Total Mem    XFree
   mbuf_jumbo_page   4096    8320     915       13244       0     254   37826560        0
        malloc-384    384   34654      46       36563       0      30   13324800        0
       malloc-1024   1024    4143       9        4389       0      16    4251648        0
       malloc-8192   8192     329       2         489       0       1    2711552        0
              pbuf   2624       0     973           0       0       2    2553152        0
              mbuf    256    8578     887       15315       0     254    2423040        0
          BUF TRIE    144     169   13299         453       0      62    1939392        0
       UMA Slabs 0    112   11401       8       11401       0     126    1277808        0
        malloc-384    384    1904      26       72329       0      30     741120        0
         FFS inode   1160     493      18         517       0       8     592760        0
        malloc-384    384    1263      17        3644       0      30     491520        0
       malloc-8192   8192      55       4         803       0       1     483328        0
        malloc-384    384     996      24        3334       0      30     391680        0
            lkpimm    160       1    2324           1       0      62     372000        0
          lkpicurr    160       2    2323           2       0      62     372000        0
        RADIX NODE    144    2124     169       20495       0      62     330192        0
        malloc-512    512     621      11         807       0      30     323584        0
      malloc-65536  65536       4       0           4       0       1     262144        0
         VM OBJECT    264     898      47       12860       0      30     249480        0
             VNODE    448     523      26         549       0      30     245952        0
      malloc-16384  16384      11       4         273       0       1     245760        0
            THREAD   1808     120      12         120       0       8     238656        0
        malloc-384    384     589      21         733       0      30     234240        0
            DEVCTL   1024       0     216         116       0       0     221184        0
       malloc-2048   2048     103       5         112       0       8     221184        0
      malloc-65536  65536       1       2         178       0       1     196608        0
      malloc-16384  16384      10       2          14       0       1     196608        0
         UMA Zones    768     242       2         242       0      16     187392        0
       malloc-1024   1024     154       6         920       0      16     163840        0
       malloc-4096   4096       2      37        1805       0       2     159744        0
        256 Bucket   2048      58      12       10052       0       8     143360        0
         vmem btag     56    2316     120        2316       0     254     136416        0
        malloc-512    512     249      15         960       0      30     135168        0
       FFS2 dinode    256     493      32         515       0      62     134400        0
      malloc-65536  65536       2       0           2       0       1     131072        0
      malloc-32768  32768       3       1         148       0       1     131072        0
       malloc-8192   8192      14       2         134       0       1     131072        0
          ksiginfo    112      37    1007          53       0     126     116928        0
         MAP ENTRY     96     840     378       38483       0     126     116928        0
       S VFS Cache    104    1020      72        1066       0     126     113568        0
       malloc-1024   1024      76      32         154       0      16     110592        0
       malloc-1024   1024      96       4         691       0      16     102400        0
      malloc-16384  16384       6       0           6       0       1      98304        0
        malloc-512    512     169       7         197       0      30      90112        0
          UMA Kegs    384     227       6         227       0      30      89472        0
            clpbuf   2624       0      32          20       0      16      83968        0
           VMSPACE   2544      23       7         772       0       4      76320        0
              PROC   1336      45       9         793       0       8      72144        0
             g_bio    408       0     170        4664       0      30      69360        0
         filedesc0   1072      46      17         794       0       8      67536        0
      mbuf_cluster   2048      30       2          30       0     254      65536        0
      malloc-65536  65536       1       0           1       0       1      65536        0
      malloc-65536  65536       1       0           1       0       1      65536        0
      malloc-32768  32768       2       0           2       0       1      65536        0
      malloc-32768  32768       2       0           2       0       1      65536        0
        malloc-512    512      72      56         392       0      30      65536        0
       malloc-1024   1024      53       3          57       0      16      57344        0
        malloc-384    384      94      46        9445       0      30      53760        0
         32 Bucket    256      66     129       11849       0      62      49920        0
      malloc-16384  16384       3       0           3       0       1      49152        0
      malloc-16384  16384       1       2           5       0       1      49152        0
       malloc-8192   8192       4       2         534       0       1      49152        0
       malloc-4096   4096       5       7         515       0       2      49152        0
       malloc-4096   4096       6       6          74       0       2      49152        0
       malloc-2048   2048       9      15        1201       0       8      49152        0
       malloc-2048   2048       8      16         516       0       8      49152        0
        128 Bucket   1024      23      24         143       0      16      48128        0
        malloc-384    384      71      49         581       0      30      46080        0
       malloc-2048   2048      18       4          22       0       8      45056        0
           DIRHASH   1024      34       2          34       0      16      36864        0
            pcpu-8      8    4210     398        4238       0     254      36864        0
      malloc-16384  16384       2       0           2       0       1      32768        0
       malloc-4096   4096       6       2          22       0       2      32768        0
       malloc-4096   4096       8       0         199       0       2      32768        0
       malloc-1024   1024      30       2          31       0      16      32768        0
           pcpu-64     64     486      26         486       0     254      32768        0
             NAMEI   1024       1      27       12381       0      16      28672        0
       malloc-4096   4096       7       0           7       0       2      28672        0
         64 Bucket    512      42      14        1358       0      30      28672        0
            socket    944      18      10        1254       0     254      26432        0
       malloc-8192   8192       1       2         201       0       1      24576        0
       malloc-8192   8192       3       0           3       0       1      24576        0
       malloc-4096   4096       2       4         268       0       2      24576        0
            ttyinq    160     135      15         300       0      62      24000        0
           ttyoutq    256      72      18         160       0      62      23040        0
         TURNSTILE    136     133      35         133       0      62      22848        0
       malloc-2048   2048       9       1           9       0       8      20480        0
       malloc-2048   2048       9       1           9       0       8      20480        0
        malloc-512    512      12      28        1228       0      30      20480        0
        malloc-512    512      22      18         303       0      30      20480        0
          2 Bucket     32      79     551        1193       0     254      20160        0
       Mountpoints   2752       2       5           2       0       4      19264        0
              pipe    744       7      18         291       0      16      18600        0
      malloc-16384  16384       1       0           1       0       1      16384        0
      malloc-16384  16384       1       0           1       0       1      16384        0
       malloc-1024   1024       2      14          24       0      16      16384        0
        malloc-512    512      15      17         104       0      30      16384        0
             tcpcb   1064       3      11           7       0     254      14896        0
        SLEEPQUEUE     88     133      27         133       0     126      14080        0
        malloc-512    512      13      11          19       0      30      12288        0
             Files     80      73      77        6607       0     126      12000        0
          8 Bucket     80      33     117         367       0     126      12000        0
         udp_inpcb    488       6      18         124       0     254      11712        0
              kenv    258      15      30        1044       0      30      11610        0
        malloc-384    384      25       5          48       0      30      11520        0
       malloc-2048   2048       0       4           4       0       8       8192        0
       malloc-2048   2048       4       0           4       0       8       8192        0
       malloc-1024   1024       0       8          18       0      16       8192        0
           rtentry    176      13      33          17       0      62       8096        0
              PGRP     88      20      72          34       0     126       8096        0
    ertt_txseginfo     40       1     201         208       0     254       8080        0
          rl_entry     40      30     172          30       0     254       8080        0
        sctp_laddr     48       0     168           4       0     254       8064        0
             udpcb     32       6     246         124       0     254       8064        0
              ertt     72       3     109           7       0     126       8064        0
               PWD     32      10     242         105       0     254       8064        0
         16 Bucket    144      36      20        1304       0      62       8064        0
          4 Bucket     48       5     163          52       0     254       8064        0
      vtnet_tx_hdr     24       0     334        1240       0     254       8016        0
             KNOTE    160       0      50           7       0      62       8000        0
             ripcb    488       1      15           4       0     254       7808        0
         tcp_inpcb    488       3      13           7       0     254       7808        0
     routing nhops    256      10      20          17       0      62       7680        0
             unpcb    256       7      23        1102       0     254       7680        0
       mbuf_packet    256       0      30          96       0     254       7680        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
           pcpu-16     16       7     249           7       0     254       4096        0
         hostcache     64       1      62           1       0     254       4032        0
          syncache    168       0      24           5       0     254       4032        0
       UMA Slabs 1    176       8      14           8       0      62       3872        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       3      60           3       0     254       2016        0
        SMR SHARED     24       3      60           3       0     254       1512        0
       FFS1 dinode    128       0       0           0       0     126          0        0
            da_ccb    544       0       0           0       0      16          0        0
           ada_ccb    272       0       0           0       0      30          0        0
             swblk    136       0       0           0       0      62          0        0
          swpctrie    144       0       0           0       0      62          0        0
   sctp_asconf_ack     48       0       0           0       0     254          0        0
       sctp_asconf     40       0       0           0       0     254          0        0
sctp_stream_msg_out    112       0       0           0       0     254          0        0
        sctp_readq    152       0       0           0       0     254          0        0
        sctp_chunk    152       0       0           0       0     254          0        0
        sctp_raddr    736       0       0           0       0     254          0        0
         sctp_asoc   2288       0       0           0       0     254          0        0
           sctp_ep   1280       0       0           0       0     254          0        0
   cdg_qdiffsample     16       0       0           0       0     254          0        0
   pf state scrubs     40       0       0           0       0     254          0        0
   pf frag entries     40       0       0           0       0     254          0        0
          pf 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    304       0       0           0       0     254          0        0
           pf tags    104       0       0           0       0     126          0        0
          pf mtags     48       0       0           0       0     254          0        0
       tcp_bbr_pcb    832       0       0           0       0      16          0        0
       tcp_bbr_map    128       0       0           0       0     126          0        0
      tcp_rack_pcb    832       0       0           0       0      16          0        0
      tcp_rack_map    112       0       0           0       0     126          0        0
     udplite_inpcb    488       0       0           0       0     254          0        0
      tcp_log_node    120       0       0           0       0     126          0        0
    tcp_log_bucket    176       0       0           0       0      62          0        0
           tcp_log    416       0       0           0       0     254          0        0
          tcpreass     48       0       0           0       0     254          0        0
tfo_ccache_entries     80       0       0           0       0     126          0        0
               tfo      4       0       0           0       0     254          0        0
          sackhole     32       0       0           0       0     254          0        0
             tcptw     88       0       0           0       0     254          0        0
               ipq     56       0       0           0       0     254          0        0
    IPsec SA lft_c     16       0       0           0       0     254          0        0
            itimer    352       0       0           0       0      30          0        0
            AIOLIO    272       0       0           0       0      30          0        0
             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
           NCLNODE    584       0       0           0       0      16          0        0
        mqnotifier    216       0       0           0       0      62          0        0
            mvdata     64       0       0           0       0     254          0        0
            mqueue    248       0       0           0       0      62          0        0
        TMPFS node    224       0       0           0       0      62          0        0
     LTS VFS Cache    360       0       0           0       0      30          0        0
       L VFS Cache    320       0       0           0       0      30          0        0
     STS VFS Cache    144       0       0           0       0      62          0        0
           cryptop    280       0       0           0       0      30          0        0
  linux_dma_object     24       0       0           0       0     254          0        0
  linux_dma_pctrie    144       0       0           0       0      62          0        0
   IOMMU_MAP_ENTRY    120       0       0           0       0     126          0        0
      ktls_session    192       0       0           0       0      62          0        0
    mbuf_jumbo_16k  16384       0       0           0       0     254          0        0
     mbuf_jumbo_9k   9216       0       0           0       0     254          0        0
      audit_record   1280       0       0           0       0       8          0        0
         domainset     40       0       0           0       0     254          0        0
        MAC labels     40       0       0           0       0     254          0        0
            vnpbuf   2624       0       0           0       0      64          0        0
            mdpbuf   2624       0       0           0       0       3          0        0
           nfspbuf   2624       0       0           0       0      16          0        0
            swwbuf   2624       0       0           0       0       8          0        0
            swrbuf   2624       0       0           0       0      16          0        0
          umtx_shm     88       0       0           0       0     126          0        0
           umtx pi     96       0       0           0       0     126          0        0
rangeset pctrie nodes    144       0       0           0       0      62          0        0
      malloc-65536  65536       0       0           0       0       1          0        0
      malloc-65536  65536       0       0           0       0       1          0        0
      malloc-65536  65536       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
       malloc-8192   8192       0       0           0       0       1          0        0
       malloc-8192   8192       0       0           0       0       1          0        0
       malloc-4096   4096       0       0           0       0       2          0        0
        malloc-256    256       0       0           0       0      62          0        0
        malloc-256    256       0       0           0       0      62          0        0
        malloc-256    256       0       0           0       0      62          0        0
        malloc-256    256       0       0           0       0      62          0        0
        malloc-256    256       0       0           0       0      62          0        0
        malloc-256    256       0       0           0       0      62          0        0
        malloc-256    256       0       0           0       0      62          0        0
        malloc-256    256       0       0           0       0      62          0        0
        malloc-128    128       0       0           0       0     126          0        0
        malloc-128    128       0       0           0       0     126          0        0
        malloc-128    128       0       0           0       0     126          0        0
        malloc-128    128       0       0           0       0     126          0        0
        malloc-128    128       0       0           0       0     126          0        0
        malloc-128    128       0       0           0       0     126          0        0
        malloc-128    128       0       0           0       0     126          0        0
        malloc-128    128       0       0           0       0     126          0        0
         malloc-64     64       0       0           0       0     254          0        0
         malloc-64     64       0       0           0       0     254          0        0
         malloc-64     64       0       0           0       0     254          0        0
         malloc-64     64       0       0           0       0     254          0        0
         malloc-64     64       0       0           0       0     254          0        0
         malloc-64     64       0       0           0       0     254          0        0
         malloc-64     64       0       0           0       0     254          0        0
         malloc-64     64       0       0           0       0     254          0        0
         malloc-32     32       0       0           0       0     254          0        0
         malloc-32     32       0       0           0       0     254          0        0
         malloc-32     32       0       0           0       0     254          0        0
         malloc-32     32       0       0           0       0     254          0        0
         malloc-32     32       0       0           0       0     254          0        0
         malloc-32     32       0       0           0       0     254          0        0
         malloc-32     32       0       0           0       0     254          0        0
         malloc-32     32       0       0           0       0     254          0        0
         malloc-16     16       0       0           0       0     254          0        0
         malloc-16     16       0       0           0       0     254          0        0
         malloc-16     16       0       0           0       0     254          0        0
         malloc-16     16       0       0           0       0     254          0        0
         malloc-16     16       0       0           0       0     254          0        0
         malloc-16     16       0       0           0       0     254          0        0
         malloc-16     16       0       0           0       0     254          0        0
         malloc-16     16       0       0           0       0     254          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 (44):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets Title
ci-freebsd-main 2021/05/21 02:02 freebsd-src d7751071bc41 3c7fef33 console log report syz C panic: ktrace_enter: flag set
ci-freebsd-main 2021/05/22 16:45 freebsd-src 20d684ecc9d7 3c7fef33 console log report panic: ktrace_enter: flag set
ci-freebsd-main 2021/05/22 15:24 freebsd-src 20d684ecc9d7 3c7fef33 console log report panic: ktrace_enter: flag set
ci-freebsd-main 2021/05/22 13:19 freebsd-src 20d684ecc9d7 3c7fef33 console log report panic: ktrace_enter: flag set
ci-freebsd-main 2021/05/22 12:25 freebsd-src 20d684ecc9d7 3c7fef33 console log report panic: ktrace_enter: flag set
ci-freebsd-main 2021/05/22 11:15 freebsd-src 20d684ecc9d7 3c7fef33 console log report panic: ktrace_enter: flag set
ci-freebsd-main 2021/05/22 11:15 freebsd-src 20d684ecc9d7 3c7fef33 console log report panic: ktrace_enter: flag set
ci-freebsd-main 2021/05/22 05:36 freebsd-src 20d684ecc9d7 3c7fef33 console log report panic: ktrace_enter: flag set
ci-freebsd-main 2021/05/22 02:46 freebsd-src 4eac63af23dd 3c7fef33 console log report panic: ktrace_enter: flag set
ci-freebsd-main 2021/05/22 02:18 freebsd-src 4eac63af23dd 3c7fef33 console log report panic: ktrace_enter: flag set
ci-freebsd-main 2021/05/21 23:06 freebsd-src 4eac63af23dd 3c7fef33 console log report panic: ktrace_enter: flag set
ci-freebsd-main 2021/05/21 22:16 freebsd-src 4eac63af23dd 3c7fef33 console log report panic: ktrace_enter: flag set
ci-freebsd-main 2021/05/21 21:24 freebsd-src 4eac63af23dd 3c7fef33 console log report panic: ktrace_enter: flag set
ci-freebsd-main 2021/05/21 21:24 freebsd-src 4eac63af23dd 3c7fef33 console log report panic: ktrace_enter: flag set
ci-freebsd-main 2021/05/21 20:34 freebsd-src 4eac63af23dd 3c7fef33 console log report panic: ktrace_enter: flag set
ci-freebsd-main 2021/05/21 18:36 freebsd-src 4eac63af23dd 3c7fef33 console log report panic: ktrace_enter: flag set
ci-freebsd-main 2021/05/21 17:37 freebsd-src 4eac63af23dd 3c7fef33 console log report panic: ktrace_enter: flag set
ci-freebsd-main 2021/05/21 11:58 freebsd-src d7751071bc41 3c7fef33 console log report panic: ktrace_enter: flag set
ci-freebsd-main 2021/05/21 11:57 freebsd-src d7751071bc41 3c7fef33 console log report panic: ktrace_enter: flag set
ci-freebsd-main 2021/05/21 04:35 freebsd-src d7751071bc41 3c7fef33 console log report panic: ktrace_enter: flag set
ci-freebsd-main 2021/05/21 03:38 freebsd-src d7751071bc41 3c7fef33 console log report panic: ktrace_enter: flag set
ci-freebsd-main 2021/05/21 03:14 freebsd-src d7751071bc41 3c7fef33 console log report panic: ktrace_enter: flag set
ci-freebsd-main 2021/05/21 01:50 freebsd-src d7751071bc41 3c7fef33 console log report panic: ktrace_enter: flag set
ci-freebsd-i386 2021/05/22 13:34 freebsd-src 20d684ecc9d7 3c7fef33 console log report panic: ktrace_enter: flag set
ci-freebsd-i386 2021/05/22 13:15 freebsd-src 20d684ecc9d7 3c7fef33 console log report panic: ktrace_enter: flag set
ci-freebsd-i386 2021/05/22 12:22 freebsd-src 20d684ecc9d7 3c7fef33 console log report panic: ktrace_enter: flag set
ci-freebsd-i386 2021/05/22 11:11 freebsd-src 20d684ecc9d7 3c7fef33 console log report panic: ktrace_enter: flag set
ci-freebsd-i386 2021/05/22 05:47 freebsd-src 20d684ecc9d7 3c7fef33 console log report panic: ktrace_enter: flag set
ci-freebsd-i386 2021/05/22 01:40 freebsd-src af949c590bd8 3c7fef33 console log report panic: ktrace_enter: flag set
ci-freebsd-i386 2021/05/21 23:19 freebsd-src af949c590bd8 3c7fef33 console log report panic: ktrace_enter: flag set
ci-freebsd-i386 2021/05/21 22:43 freebsd-src af949c590bd8 3c7fef33 console log report panic: ktrace_enter: flag set
ci-freebsd-i386 2021/05/21 22:11 freebsd-src af949c590bd8 3c7fef33 console log report panic: ktrace_enter: flag set
ci-freebsd-i386 2021/05/21 21:38 freebsd-src af949c590bd8 3c7fef33 console log report panic: ktrace_enter: flag set
ci-freebsd-i386 2021/05/21 21:38 freebsd-src af949c590bd8 3c7fef33 console log report panic: ktrace_enter: flag set
ci-freebsd-i386 2021/05/21 20:31 freebsd-src af949c590bd8 3c7fef33 console log report panic: ktrace_enter: flag set
ci-freebsd-i386 2021/05/21 11:53 freebsd-src d7751071bc41 3c7fef33 console log report panic: ktrace_enter: flag set
ci-freebsd-i386 2021/05/21 07:30 freebsd-src d7751071bc41 3c7fef33 console log report panic: ktrace_enter: flag set
ci-freebsd-i386 2021/05/21 05:11 freebsd-src d7751071bc41 3c7fef33 console log report panic: ktrace_enter: flag set
ci-freebsd-i386 2021/05/21 04:44 freebsd-src d7751071bc41 3c7fef33 console log report panic: ktrace_enter: flag set
ci-freebsd-i386 2021/05/21 04:44 freebsd-src d7751071bc41 3c7fef33 console log report panic: ktrace_enter: flag set
ci-freebsd-i386 2021/05/21 04:05 freebsd-src d7751071bc41 3c7fef33 console log report panic: ktrace_enter: flag set
ci-freebsd-i386 2021/05/21 03:24 freebsd-src d7751071bc41 3c7fef33 console log report panic: ktrace_enter: flag set
ci-freebsd-i386 2021/05/21 02:29 freebsd-src d7751071bc41 3c7fef33 console log report panic: ktrace_enter: flag set
* Struck through repros no longer work on HEAD.