syzbot


panic: sched_pickcpu: Failed to find a cpu.

Status: fixed on 2020/12/09 01:06
Reported-by: syzbot+4e3b1009de98d2fabcda@syzkaller.appspotmail.com
Fix commit: f1b18a668deb cpuset_set{affinity,domain}: do not allow empty masks
First crash: 791d, last: 790d

Sample crash report:
login: panic: sched_pickcpu: Failed to find a cpu.
cpuid = 0
time = 1607400878
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x47/frame 0xfffffe0051ae4420
vpanic() at vpanic+0x1c7/frame 0xfffffe0051ae4480
panic() at panic+0x43/frame 0xfffffe0051ae44e0
sched_pickcpu() at sched_pickcpu+0x8b1/frame 0xfffffe0051ae45c0
sched_switch() at sched_switch+0x535/frame 0xfffffe0051ae46c0
mi_switch() at mi_switch+0x214/frame 0xfffffe0051ae46f0
intr_event_handle() at intr_event_handle+0x306/frame 0xfffffe0051ae4750
intr_execute_handlers() at intr_execute_handlers+0x92/frame 0xfffffe0051ae4790
Xapic_isr1() at Xapic_isr1+0xdc/frame 0xfffffe0051ae4790
--- interrupt, rip = 0xffffffff810df027, rsp = 0xfffffe0051ae4860, rbp = 0xfffffe0051ae4860 ---
__sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x17/frame 0xfffffe0051ae4860
kern_select() at kern_select+0x8b5/frame 0xfffffe0051ae4a60
sys_select() at sys_select+0x7f/frame 0xfffffe0051ae4ab0
amd64_syscall() at amd64_syscall+0x247/frame 0xfffffe0051ae4bf0
fast_syscall_common() at fast_syscall_common+0xf8/frame 0xfffffe0051ae4bf0
--- syscall (93, FreeBSD ELF64, sys_select), rip = 0x80090d20a, rsp = 0x7fffffffa508, rbp = 0x7fffffffa540 ---
KDB: enter: panic
[ thread pid 775 tid 100104 ]
Stopped at      kdb_enter+0x67: movq    $0,0x1471976(%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         0xffffffff818d5eea
rbx                          0
rsp         0xfffffe0051ae4400
rbp         0xfffffe0051ae4420
rsi                        0x1
rdi                          0
r8                           0
r9                  0xffffffff
r10                          0
r11         0xfffffe0088763810
r12         0xffffffff820671c0  ddb_dbbe
r13                          0
r14         0xffffffff8197df22
r15         0xffffffff8197df22
rip         0xffffffff810ead87  kdb_enter+0x67
rflags                    0x86
kdb_enter+0x67: movq    $0,0x1471976(%rip)
db> show proc
Process 775 (sshd) at 0xfffff8001c532528:
 state: NORMAL
 uid: 0  gids: 0
 parent: pid 694 at 0xfffff80004e8d528
 ABI: FreeBSD ELF64
 arguments: sshd: root@notty
 reaper: 0xfffff80004454528 reapsubtree: 1
 sigparent: 20
 vmspace: 0xfffffe0094dee3e0
   (map 0xfffffe0094dee3e0)
   (map.pmap 0xfffffe0094dee4a0)
   (pmap 0xfffffe0094dee500)
 threads: 1
100104                   Run     CPU 0                       sshd
db> ps
  pid  ppid  pgrp   uid  state   wmesg   wchan               cmd
  779   777   777     0  RE      CPU 1                       syz-executor0423626
  777   775   777     0  Ss      pause   0xfffff8001c4f2b00  csh
  775   694   775     0  Rs      CPU 0                       sshd
  754     1   754     0  Ss+     ttyin   0xfffff80004902cb0  getty
  753     1   753     0  Ss+     ttyin   0xfffff80004bf78b0  getty
  752     1   752     0  Ss+     ttyin   0xfffff80004bf7cb0  getty
  751     1   751     0  Ss+     ttyin   0xfffff80004bff0b0  getty
  750     1   750     0  Ss+     ttyin   0xfffff80004bff4b0  getty
  749     1   749     0  Ss+     ttyin   0xfffff80004bff8b0  getty
  748     1   748     0  Ss+     ttyin   0xfffff80004bffcb0  getty
  747     1   747     0  Ss+     ttyin   0xfffff80004b620b0  getty
  746     1   746     0  Ss+     ttyin   0xfffff80004b624b0  getty
  744     1    24     0  S+      piperd  0xfffff8001c2a4ba0  logger
  743   742    24     0  S+      nanslp  0xffffffff8252fea0  sleep
  742     1    24     0  S+      wait    0xfffff80004f60528  sh
  698     1   698     0  Ss      nanslp  0xffffffff8252fea0  cron
  694     1   694     0  Ss      select  0xfffff8001c2d1ac0  sshd
  507     1   507     0  Ss      select  0xfffff8001c2d1b40  syslogd
  436     1   436     0  Ss      select  0xfffff8001c2d1f40  devd
  435     1   435    65  Ss      select  0xfffff8001c2d1cc0  dhclient
  350     1   350     0  Ss      select  0xfffff8001c2d1d40  dhclient
  347     1   347     0  Ss      select  0xfffff80004e18840  dhclient
   23     0     0     0  DL      vlruwt  0xfffff80004be4000  [vnlru]
   22     0     0     0  DL      syncer  0xffffffff8261d238  [syncer]
   21     0     0     0  DL      (threaded)                  [bufdaemon]
100070                   D       qsleep  0xffffffff8261c300  [bufdaemon]
100077                   D       -       0xffffffff8200ac80  [bufspacedaemon-0]
100088                   D       sdflush 0xfffff800043408e8  [/ worker]
   20     0     0     0  DL      psleep  0xffffffff826437c8  [vmdaemon]
   19     0     0     0  DL      (threaded)                  [pagedaemon]
100068                   D       psleep  0xffffffff82637c38  [dom0]
100075                   D       launds  0xffffffff82637c44  [laundry: dom0]
100076                   D       umarcl  0xffffffff814f76f0  [uma]
   18     0     0     0  DL      -       0xffffffff82364278  [rand_harvestq]
   17     0     0     0  DL      waiting 0xffffffff82d20818  [sctp_iterator]
   16     0     0     0  DL      -       0xffffffff8261b8dc  [soaiod4]
   15     0     0     0  DL      -       0xffffffff8261b8dc  [soaiod3]
    9     0     0     0  DL      -       0xffffffff8261b8dc  [soaiod2]
    8     0     0     0  DL      -       0xffffffff8261b8dc  [soaiod1]
    7     0     0     0  DL      pftm    0xffffffff82b5c390  [pf purge]
    6     0     0     0  DL      (threaded)                  [cam]
100034                   D       -       0xffffffff8223bfc0  [doneq0]
100067                   D       -       0xffffffff8223be90  [scanner]
    5     0     0     0  DL      crypto_ 0xfffff80004570d90  [crypto returns 1]
    4     0     0     0  DL      crypto_ 0xfffff80004570d30  [crypto returns 0]
    3     0     0     0  DL      crypto_ 0xffffffff82635130  [crypto]
   14     0     0     0  DL      seqstat 0xfffff80004519888  [sequencer 00]
   13     0     0     0  DL      (threaded)                  [geom]
100025                   D       -       0xffffffff8250f720  [g_event]
100026                   D       -       0xffffffff8250f728  [g_up]
100027                   D       -       0xffffffff8250f730  [g_down]
    2     0     0     0  DL      (threaded)                  [KTLS]
100018                   D       -       0xfffff800044a6300  [thr_0]
100019                   D       -       0xfffff800044a6380  [thr_1]
   12     0     0     0  RL      (threaded)                  [intr]
100011                   I                                   [swi5: fast taskq]
100014                   I                                   [swi6: task queue]
100015                   I                                   [swi6: Giant taskq]
100020                   I                                   [swi1: netisr 0]
100021                   I                                   [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                   RunQ                                [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]
100073                   I                                   [swi1: hpts]
100074                   I                                   [swi1: hpts]
   11     0     0     0  RL      (threaded)                  [idle]
100003                   CanRun                              [idle: cpu0]
100004                   CanRun                              [idle: cpu1]
    1     0     1     0  SLs     wait    0xfffff80004454528  [init]
   10     0     0     0  DL      audit_w 0xffffffff82635650  [audit]
    0     0     0     0  DLs     (threaded)                  [kernel]
100000                   D       swapin  0xffffffff8250fcb0  [swapper]
100005                   D       -       0xfffff800044a3e00  [if_io_tqg_0]
100006                   D       -       0xfffff800044a3d00  [if_io_tqg_1]
100007                   D       -       0xfffff800044a3c00  [if_config_tqg_0]
100008                   D       -       0xfffff800044a3b00  [softirq_0]
100009                   D       -       0xfffff800044a3a00  [softirq_1]
100010                   D       -       0xfffff80004342200  [in6m_free taskq]
100012                   D       -       0xfffff8000449fd00  [kqueue_ctx taskq]
100013                   D       -       0xfffff8000449fb00  [inm_free taskq]
100016                   D       -       0xfffff8000449f500  [aiod_kick taskq]
100017                   D       -       0xfffff8000449f300  [thread taskq]
100024                   D       -       0xfffff800044f3800  [firmware taskq]
100029                   D       -       0xfffff800044f3100  [crypto_0]
100030                   D       -       0xfffff800044f3100  [crypto_1]
100044                   D       -       0xfffff8000456f100  [vtnet0 rxq 0]
100045                   D       -       0xfffff8000456f000  [vtnet0 txq 0]
100046                   D       -       0xfffff800048a3e00  [vtnet0 rxq 1]
100047                   D       -       0xfffff800048a3d00  [vtnet0 txq 1]
100049                   D       vtbslp  0xfffff8000468ea80  [virtio_balloon]
100053                   D       -       0xfffff80004908c00  [mca taskq]
100054                   D       -       0xffffffff81d26671  [deadlkres]
100062                   D       -       0xfffff80004b8fd00  [acpi_task_0]
100063                   D       -       0xfffff80004b8fd00  [acpi_task_1]
100064                   D       -       0xfffff80004b8fd00  [acpi_task_2]
100066                   D       -       0xfffff8000456f900  [CAM taskq]
db> show all locks
Process 779 (syz-executor0423626) thread 0xfffffe00887fc800 (100101)
exclusive rw vm object (vm object) r = 0 (0xfffff8001c4ef840) locked @ /syzkaller/managers/main/kernel/sys/vm/vm_object.c:647
db> show malloc
              Type        InUse        MemUse     Requests
           pf_hash            5        11524K            5
            devbuf         4216         4339K         4241
          tcp_hpts            5         3201K            5
             vtbuf           24         1968K           46
         sysctloid        29250         1714K        29315
              kobj          337         1348K          498
            newblk          535         1158K          583
          vfscache            3         1025K            3
               pcb           21          537K           75
          inodedep           20          520K           85
         ufs_quota            1          512K            1
          vfs_hash            1          512K            1
           callout            2          512K            2
              intr            4          472K            4
           subproc          101          205K          835
            acpica         1674          184K        54318
         vnet_data            1          168K            1
           tidhash            3          141K            3
           pagedep           10          131K           61
        tfo_ccache            1          128K            1
               sem            4          106K            4
            DEVFS1          101          101K          110
            linker          254           97K          282
               bus          994           81K         3318
          mtx_pool            2           72K            2
          syncache            1           68K            1
          acpitask            1           64K            1
       ddb_capture            1           64K            1
            module          509           64K          509
              temp           18           33K         1558
         hostcache            1           32K            1
               shm            1           32K            1
               msg            4           30K            4
            DEVFS3          120           30K          130
           kdtrace          153           30K          887
              umtx          234           30K          234
              vmem            3           26K            4
        gtaskqueue           18           26K           18
            kbdmux            6           22K            6
        DEVFS_RULE           56           20K           56
               BPF           10           18K           10
         ufs_mount            5           17K            6
              proc            3           17K            3
               tty           16           16K           16
           ithread           99           16K           99
            bus-sc           31           14K         1555
            KTRACE          100           13K          100
            ifaddr           32           12K           32
              kenv           92           12K           92
      eventhandler          125           11K          125
              GEOM           60           10K          489
              rman           82           10K          423
         bmsafemap            5            9K           45
              UART           12            9K           12
           devstat            4            9K            4
               rpc            2            8K            2
             shmfd            1            8K            1
       pfs_vncache            1            8K            1
         pfs_nodes           20            8K           20
     audit_evclass          233            8K          291
            sglist            5            7K            5
           CAM DEV            3            6K          510
              cred           21            6K          233
         CAM queue            5            6K         1528
         taskqueue           48            6K           48
       ufs_dirhash           24            5K           24
            plimit           17            5K          322
             ifnet            3            5K            3
                vt           11            5K           11
               UMA          254            5K          254
           memdesc            1            4K            1
               MCA           32            4K           32
          filedesc            1            4K            1
             evdev            4            4K            4
          routetbl           15            4K           15
             hhook           13            4K           13
       ether_multi           40            4K           50
           lltable           11            4K           11
          pf_ifnet            5            3K            6
         in6_multi           25            3K           25
            kqueue           46            3K          782
           pwddesc           45            3K          780
          terminal           11            3K           11
           acpisem           22            3K           22
           session           20            3K           31
              pgrp           20            3K           31
           uidinfo            3            3K            8
        local_apic            1            2K            1
           io_apic            1            2K            1
         ipsec-saq            2            2K            2
         proc-args           39            2K          484
           CAM XPT           22            2K          543
             lockf           15            2K           22
            Unitno           25            2K           37
             selfd           23            2K         8926
       ipsecpolicy            2            2K            2
           acpidev           20            2K           20
               msi            9            2K            9
             clone            9            2K            9
           softdep            1            1K            1
            sahead            1            1K            1
          secasvar            1            1K            1
       vnodemarker            2            1K            8
      NFSD session            1            1K            1
        CAM periph            4            1K          271
            select            7            1K           29
             ipsec            3            1K            3
            diradd            6            1K           36
          indirdep            3            1K            3
             nhops            6            1K            6
         toponodes            6            1K            6
            isadev            6            1K            6
             mount           16            1K           89
          pci_link           10            1K           10
          sctp_ifa            5            1K            7
            ip6ndp            4            1K            5
 encap_export_host           12            1K           12
            crypto            3            1K            3
          in_multi            2            1K            4
              pfil            4            1K            4
           CAM SIM            2            1K            2
              cdev            2            1K            2
    chacha20random            1            1K            1
               osd            3            1K            9
          sctp_ifn            2            1K            7
            dirrem            1            1K           28
               mld            2            1K            2
              igmp            2            1K            2
            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
       inpcbpolicy            6            1K          129
        loginclass            3            1K            7
            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           26
           tcpfunc            2            1K            2
          procdesc            1            1K            6
          pmchooks            1            1K            1
            DEVFSP            2            1K            2
            soname            4            1K         3141
          filecaps            4            1K           63
               tun            3            1K            3
          nexusdev            5            1K            5
          sctp_vrf            1            1K            1
           entropy            2            1K           35
              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            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
            nvlist            0            0K            0
          SCSI ENC            0            0K            0
           SCSI sa            0            0K            0
        madt_table            0            0K            2
          smartpqi            0            0K            0
         scsi_pass            0            0K            0
         ciss_data            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
              iavf            0            0K            0
               ixl            0            0K            0
               amr            0            0K            0
           scsi_da            0            0K           69
            ata_da            0            0K            0
           scsi_ch            0            0K            0
           scsi_cd            0            0K            0
            USBdev            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
               USB            0            0K            0
          xen_intr            0            0K            0
       AHCI driver            0            0K            0
               agp            0            0K            0
           xen_hvm            0            0K            0
         legacydrv            0            0K            0
            qpidrv            0            0K            0
      dmar_idpgtbl            0            0K            0
          dmar_dom            0            0K            0
          dmar_ctx            0            0K            0
           nvme_da            0            0K            0
           acpipwr            0            0K            0
              isci            0            0K            0
      iommu_dmamap            0            0K            0
            twsbuf            0            0K            0
     hyperv_socket            0            0K            0
           bxe_ilt            0            0K            0
            xenbus            0            0K            0
      twe_commands            0            0K            0
      twa_commands            0            0K            0
       tcp_log_dev            0            0K            0
     vm_fictitious            0            0K            0
      midi buffers            0            0K            0
             mixer            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
           UMAHash            0            0K            0
           CAM CCB            0            0K         1891
         vm_pgdata            0            0K            0
           jblocks            0            0K            0
          savedino            0            0K            7
          sentinel            0            0K            0
            jfsync            0            0K            0
            jtrunc            0            0K            0
             sbdep            0            0K            2
           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
         newdirblk            0            0K            8
             mkdir            0            0K           16
          freefile            0            0K           25
          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
             xform            0            0K            0
               NLM            0            0K            0
    ipsec-spdcache            0            0K            0
         ipsec-reg            0            0K            0
        ipsec-misc            0            0K            0
      ipsecrequest            0            0K            0
            ip6opt            0            0K            3
       ip6_msource            0            0K            0
      ip6_moptions            0            0K            0
       in6_mfilter            0            0K            0
             frag6            0            0K            0
            tcplog            0            0K            0
               LRO            0            0K            0
      newreno data            0            0K            0
        ip_msource            0            0K            0
       ip_moptions            0            0K            0
        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
              vlan            0            0K            0
               gif            0            0K            0
           ifdescr            0            0K            0
              zlib            0            0K            0
           fadvise            0            0K            0
           VN POLL            0            0K            0
            statfs            0            0K          195
     namei_tracker            0            0K            0
       export_host            0            0K            0
        cl_savebuf            0            0K            6
               PUC            0            0K            0
          ppbusdev            0            0K            0
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
              nvme            0            0K            0
               nvd            0            0K            0
            netmap            0            0K            0
            mwldev            0            0K            0
            biobuf            0            0K            0
              aios            0            0K            0
               lio            0            0K            0
               acl            0            0K            0
        MVS driver            0            0K            0
          mbuf_tag            0            0K           27
              accf            0            0K            0
               pts            0            0K            0
               iov            0            0K        13477
          ioctlops            0            0K           83
           Witness            0            0K            0
             stack            0            0K            0
     CAM ccb queue            0            0K            0
          mrsasbuf            0            0K            0
          mpt_user            0            0K            0
              sbuf            0            0K          288
          mps_user            0            0K            0
          firmware            0            0K            0
        compressor            0            0K            0
            MPSSAS            0            0K            0
              SWAP            0            0K            0
               mps            0            0K            0
          mpr_user            0            0K            0
         sysctltmp            0            0K          603
            sysctl            0            0K            1
            MPRSAS            0            0K            0
              ekcd            0            0K            0
            dumper            0            0K            0
          sendfile            0            0K            0
              rctl            0            0K            0
               mpr            0            0K            0
            mfibuf            0            0K            0
        md_sectors            0            0K            0
           md_disk            0            0K            0
           malodev            0            0K            0
               LED            0            0K            0
             cache            0            0K            0
          kcovinfo            0            0K            0
      prison_racct            0            0K            0
       Fail Points            0            0K            0
             sigio            0            0K            1
filedesc_to_leader            0            0K            0
               pwd            0            0K            0
       tty console            0            0K            0
          ix_sriov            0            0K            0
        aacraidcam            0            0K            0
                ix            0            0K            0
            ipsbuf            0            0K            0
            iirbuf            0            0K            0
       aacraid_buf            0            0K            0
            aaccam            0            0K            0
        isofs_node            0            0K            0
       isofs_mount            0            0K            0
     tr_raid5_data            0            0K            0
    tr_raid1e_data            0            0K            0
     tr_raid1_data            0            0K            0
     tr_raid0_data            0            0K            0
    tr_concat_data            0            0K            0
       md_sii_data            0            0K            0
   md_promise_data            0            0K            0
    md_nvidia_data            0            0K            0
   md_jmicron_data            0            0K            0
     md_intel_data            0            0K            0
       md_ddf_data            0            0K            0
         raid_data            0            0K           72
     geom_flashmap            0            0K            0
         tmpfs dir            0            0K            0
        tmpfs name            0            0K            0
       tmpfs mount            0            0K            0
           NFS FHA            0            0K            0
         newnfsmnt            0            0K            0
  newnfsclient_req            0            0K            0
   NFSCL layrecall            0            0K            0
     NFSCL session            0            0K            0
     NFSCL sockreq            0            0K            0
     NFSCL devinfo            0            0K            0
     NFSCL flayout            0            0K            0
      NFSCL layout            0            0K            0
     NFSD rollback            0            0K            0
NFSCL diroffdiroff            0            0K            0
       NEWdirectio            0            0K            0
        NEWNFSnode            0            0K            0
         NFSCL lck            0            0K            0
      NFSCL lckown            0            0K            0
      NFSCL client            0            0K            0
       NFSCL deleg            0            0K            0
        NFSCL open            0            0K            0
       NFSCL owner            0            0K            0
            NFS fh            0            0K            0
           NFS req            0            0K            0
     NFSD usrgroup            0            0K            0
       NFSD string            0            0K            0
       NFSD V4lock            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
            DEVFS4            0            0K            0
            DEVFS2            0            0K            0
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       privcmd_dev            0            0K            0
        evtchn_dev            0            0K            0
          xenstore            0            0K            0
            aacbuf            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
              zstd            0            0K            0
db> show uma
              Zone   Size    Used    Free    Requests  Sleeps  Bucket  Total Mem    XFree
      mbuf_cluster   2048    9323       1        9323       0     254   19095552        0
              pbuf   2632       0     989           0       0       2    2603048        0
       mbuf_packet    256    8192    1003       25714       0     254    2353920        0
          BUF TRIE    144     175   13293         516       0      62    1939392        0
        malloc-384    384    4139      11        4141       0      30    1593600        0
       malloc-4096   4096     337       1         498       0       2    1384448        0
        malloc-128    128   10370      46       10665       0     126    1333248        0
       UMA Slabs 0    112    5442      27        5442       0     126     612528        0
         FFS inode   1128     483      14         508       0       8     560616        0
        RADIX NODE    144    2051     158       19959       0      62     318096        0
             VNODE    488     512      32         539       0      30     265472        0
      malloc-65536  65536       4       0           4       0       1     262144        0
      malloc-65536  65536       3       1          11       0       1     262144        0
         VM OBJECT    264     886      44       12635       0      30     245520        0
        256 Bucket   2048      99      19        5697       0       8     241664        0
            DEVCTL   1024       0     212         112       0       0     217088        0
       malloc-4096   4096      49       3        1366       0       2     212992        0
            THREAD   1792     106      11         106       0       8     209664        0
         malloc-16     16   12231     269       12293       0     254     200000        0
         malloc-64     64    3006      81        3030       0     254     197568        0
         UMA Zones    768     226       3         226       0      16     175872        0
        malloc-128    128    1126      83       25316       0     126     154752        0
        malloc-256    256     567      18         737       0      62     149760        0
         malloc-32     32    4528     134        4699       0     254     149184        0
              mbuf    256     387     153        2339       0     254     138240        0
      malloc-65536  65536       0       2          43       0       1     131072        0
      malloc-65536  65536       0       2         122       0       1     131072        0
      malloc-65536  65536       2       0           2       0       1     131072        0
       FFS2 dinode    256     483      12         508       0      62     126720        0
       malloc-1024   1024     113       3         123       0      16     118784        0
          ksiginfo    112      40    1004          55       0     126     116928        0
         MAP ENTRY     96     832     344       37803       0     126     112896        0
       S VFS Cache    104     962      91        1006       0     126     109512        0
         vmem btag     56    1877      55        1877       0     254     108192        0
       malloc-4096   4096      23       0          34       0       2      94208        0
       malloc-2048   2048       1      39        1892       0       8      81920        0
          UMA Kegs    384     212       1         212       0      30      81792        0
           VMSPACE   2544      23       7         758       0       4      76320        0
       malloc-8192   8192       6       3          34       0       1      73728        0
              PROC   1320      45       9         779       0       8      71280        0
      malloc-32768  32768       2       0           2       0       1      65536        0
      malloc-32768  32768       0       2         126       0       1      65536        0
             g_bio    408       0     160        5038       0      30      65280        0
         filedesc0   1072      45      11         780       0       8      60032        0
        malloc-256    256     159      51         473       0      62      53760        0
        128 Bucket   1024      36      15         547       0      16      52224        0
      malloc-16384  16384       3       0           3       0       1      49152        0
       malloc-2048   2048       9      15         516       0       8      49152        0
         32 Bucket    256      48     132        8851       0      62      46080        0
         malloc-64     64     523     170        1624       0     254      44352        0
        malloc-128    128     308      33         447       0     126      43648        0
            clpbuf   2632       0      16          18       0      16      42112        0
           DIRHASH   1024      34       6          34       0      16      40960        0
   mbuf_jumbo_page   4096       0      10          10       0     254      40960        0
         malloc-64     64     542      88       10604       0     254      40320        0
        malloc-256    256     136      14         444       0      62      38400        0
             NAMEI   1024       0      36       11853       0      16      36864        0
        malloc-384    384      75      15         395       0      30      34560        0
      malloc-32768  32768       1       0           1       0       1      32768        0
      malloc-16384  16384       2       0           5       0       1      32768        0
      malloc-16384  16384       0       2         153       0       1      32768        0
       malloc-8192   8192       3       1           5       0       1      32768        0
           pcpu-64     64     452      60         452       0     254      32768        0
            pcpu-8      8    3859     237        3863       0     254      32768        0
         64 Bucket    512      55       9        1255       0      30      32768        0
        malloc-384    384      19      51          84       0      30      26880        0
        malloc-384    384      53      17          53       0      30      26880        0
        malloc-256    256      29      76         698       0      62      26880        0
       malloc-8192   8192       2       1         102       0       1      24576        0
       malloc-8192   8192       3       0           3       0       1      24576        0
         malloc-64     64     249     129       13409       0     254      24192        0
            ttyinq    160     135      15         300       0      62      24000        0
        malloc-128    128     127      59         168       0     126      23808        0
        malloc-128    128     142      44         494       0     126      23808        0
             tcpcb   1048       3      19           7       0     254      23056        0
           ttyoutq    256      72      18         160       0      62      23040        0
        malloc-256    256      60      30         482       0      62      23040        0
            socket    944      14      10        1215       0     254      22656        0
       malloc-2048   2048       6       4         262       0       8      20480        0
       malloc-1024   1024      18       2          18       0      16      20480        0
        malloc-128    128      95      60         789       0     126      19840        0
       Mountpoints   2752       2       5           2       0       4      19264        0
        malloc-256    256      36      39         422       0      62      19200        0
         TURNSTILE    136     118       8         118       0      62      17136        0
      malloc-16384  16384       1       0           1       0       1      16384        0
      malloc-16384  16384       1       0           1       0       1      16384        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-4096   4096       3       1           6       0       2      16384        0
       malloc-1024   1024       6      10         883       0      16      16384        0
       malloc-1024   1024      14       2          14       0      16      16384        0
         malloc-64     64     192      60        1718       0     254      16128        0
          8 Bucket     80      40     160         461       0     126      16000        0
        malloc-256    256      52       8          53       0      62      15360        0
              pipe    744       7      13         282       0      16      14880        0
       malloc-4096   4096       3       0           4       0       2      12288        0
       malloc-4096   4096       1       2         199       0       2      12288        0
       malloc-2048   2048       3       3          15       0       8      12288        0
       malloc-1024   1024       2      10          42       0      16      12288        0
       malloc-1024   1024       4       8         160       0      16      12288        0
        malloc-512    512       1      23         119       0      30      12288        0
         malloc-32     32     277     101         404       0     254      12096        0
             Files     80      69      81        6442       0     126      12000        0
         udp_inpcb    488       2      22         118       0     254      11712        0
        SLEEPQUEUE     88     118      10         118       0     126      11264        0
       malloc-8192   8192       1       0           1       0       1       8192        0
       malloc-4096   4096       1       1           3       0       2       8192        0
       malloc-2048   2048       2       2           4       0       8       8192        0
       malloc-2048   2048       1       3          37       0       8       8192        0
       malloc-2048   2048       3       1           3       0       8       8192        0
       malloc-2048   2048       3       1         194       0       8       8192        0
       malloc-1024   1024       3       5          19       0      16       8192        0
        malloc-512    512       4      12           4       0      30       8192        0
        malloc-512    512       2      14         510       0      30       8192        0
        malloc-512    512       3      13          47       0      30       8192        0
        malloc-512    512       2      14           8       0      30       8192        0
        malloc-512    512       8       8           8       0      30       8192        0
           rtentry    176      14      32          18       0      62       8096        0
          rl_entry     40      28     174          28       0     254       8080        0
        sctp_laddr     48       0     168           4       0     254       8064        0
             udpcb     32       2     250         118       0     254       8064        0
               PWD     32      10     242         100       0     254       8064        0
         malloc-64     64      11     115          24       0     254       8064        0
         malloc-64     64       2     124          37       0     254       8064        0
         malloc-64     64      28      98          48       0     254       8064        0
         malloc-32     32       8     244          29       0     254       8064        0
         malloc-32     32     101     151         137       0     254       8064        0
         malloc-32     32      46     206        1889       0     254       8064        0
         malloc-32     32      58     194         849       0     254       8064        0
         malloc-32     32       1     251          20       0     254       8064        0
         malloc-32     32      30     222        2724       0     254       8064        0
         16 Bucket    144      30      26         193       0      62       8064        0
          4 Bucket     48       6     162          51       0     254       8064        0
          2 Bucket     32      51     201         510       0     254       8064        0
      vtnet_tx_hdr     24       1     333        1373       0     254       8016        0
             KNOTE    160       0      50           7       0      62       8000        0
         malloc-16     16      16     484          46       0     254       8000        0
         malloc-16     16      28     472         226       0     254       8000        0
         malloc-16     16      39     461         496       0     254       8000        0
         malloc-16     16     188     312        1352       0     254       8000        0
         malloc-16     16     252     248         254       0     254       8000        0
         malloc-16     16      27     473       24504       0     254       8000        0
        malloc-128    128      15      47          71       0     126       7936        0
        malloc-128    128      43      19        3037       0     126       7936        0
         tcp_inpcb    488       3      13           7       0     254       7808        0
              kenv    258       3      27        1002       0      30       7740        0
     routing nhops    256      11      19          18       0      62       7680        0
             unpcb    256       7      23        1069       0     254       7680        0
        malloc-384    384       4      16           5       0      30       7680        0
        malloc-384    384       9      11           9       0      30       7680        0
        malloc-256    256      12      18          42       0      62       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
       malloc-1024   1024       2       2           2       0      16       4096        0
        malloc-512    512       1       7           2       0      30       4096        0
           pcpu-16     16       7     249           7       0     254       4096        0
         hostcache     96       1      41           1       0     254       4032        0
          syncache    168       0      24           5       0     254       4032        0
         malloc-16     16       8     242           8       0     254       4000        0
             ripcb    488       1       7           4       0     254       3904        0
       UMA Slabs 1    176       7      15           7       0      62       3872        0
        malloc-384    384       1       9           1       0      30       3840        0
        malloc-384    384       1       9           1       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      61           2       0     254       2016        0
        SMR SHARED     24       2      61           2       0     254       1512        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_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
   pf state scrubs     40       0       0           0       0     254          0        0
   pf frag entries     40       0       0           0       0     254          0        0
          pf frags    248       0       0           0       0      62          0        0
  pf table entries    160       0       0           0       0      62          0        0
pf table entry counters     64       0       0           0       0     254          0        0
   pf source nodes    136       0       0           0       0     254          0        0
     pf state keys     88       0       0           0       0     126          0        0
         pf states    296       0       0           0       0     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
    IPsec SA lft_c     16       0       0           0       0     254          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
            itimer    352       0       0           0       0      30          0        0
            AIOLIO    272       0       0           0       0      30          0        0
             AIOCB    488       0       0           0       0      30          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     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   2632       0       0           0       0      64          0        0
            mdpbuf   2632       0       0           0       0       3          0        0
           nfspbuf   2632       0       0           0       0      16          0        0
            swwbuf   2632       0       0           0       0       8          0        0
            swrbuf   2632       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-4096   4096       0       0           0       0       2          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 (4):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets Title
ci-freebsd-main 2020/12/08 04:16 freebsd ddb51dedb559 51a9082e console log report syz C
ci-freebsd-main 2020/12/08 08:43 freebsd cc97d576f306 9af51e31 console log report
ci-freebsd-main 2020/12/08 08:04 freebsd cc97d576f306 9af51e31 console log report
ci-freebsd-main 2020/12/08 04:08 freebsd ddb51dedb559 51a9082e console log report
* Struck through repros no longer work on HEAD.