syzbot


panic: _mtx_lock_sleep: recursed on non-recursive mutex process lock @ /syzkaller/managers/main/kernel/sys/kern/kern_eve

Status: fixed on 2021/05/12 08:32
Reported-by: syzbot+b532c1011181868dcd46@syzkaller.appspotmail.com
Fix commit: 75c5cf7a720f filt_timerexpire: avoid process lock recursion
First crash: 664d, last: 664d

Sample crash report:
panic: _mtx_lock_sleep: recursed on non-recursive mutex process lock @ /syzkaller/managers/main/kernel/sys/kern/kern_event.c:745

cpuid = 1
time = 1618244108
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x47/frame 0xfffffe0088551700
vpanic() at vpanic+0x1c7/frame 0xfffffe0088551760
panic() at panic+0x43/frame 0xfffffe00885517c0
__mtx_lock_sleep() at __mtx_lock_sleep+0x6e9/frame 0xfffffe0088551850
__mtx_lock_flags() at __mtx_lock_flags+0x150/frame 0xfffffe00885518b0
filt_timerexpire() at filt_timerexpire+0x1de/frame 0xfffffe0088551900
kqtimer_proc_continue() at kqtimer_proc_continue+0x11e/frame 0xfffffe0088551950
tdsendsignal() at tdsendsignal+0x9f6/frame 0xfffffe0088551a00
kern_kill() at kern_kill+0x203/frame 0xfffffe0088551ab0
amd64_syscall() at amd64_syscall+0x247/frame 0xfffffe0088551bf0
fast_syscall_common() at fast_syscall_common+0xf8/frame 0xfffffe0088551bf0
--- syscall (37, FreeBSD ELF64, sys_kill), rip = 0x2e67ba, rsp = 0x7fffffffe488, rbp = 0x7fffffffe510 ---
KDB: enter: panic
[ thread pid 783 tid 100122 ]
Stopped at      kdb_enter+0x67: movq    $0,0x163c88e(%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         0xffffffff81134850  vprintf+0x140
rdx                        0x1
rbx                          0
rsp         0xfffffe00885516e0
rbp         0xfffffe0088551700
rsi                          0
rdi         0xffffffff81134886  vprintf+0x176
r8                           0
r9          0x8080808080808080
r10         0xfffffe00885515d0
r11              0x1ff77fff59c
r12         0xffffffff82267ac0  ddb_dbbe
r13                          0
r14         0xffffffff81a61989
r15         0xffffffff81a61989
rip         0xffffffff8112b877  kdb_enter+0x67
rflags                    0x82
kdb_enter+0x67: movq    $0,0x163c88e(%rip)
db> show proc
Process 783 (syz-executor.1) at 0xfffff80028a38a70:
 state: NORMAL
 uid: 0  gids: 0, 0, 5
 parent: pid 780 at 0xfffff80004ebd000
 ABI: FreeBSD ELF64
 flag: 0x10004000  flag2: 0
 arguments: /root/syz-executor.1
 reaper: 0xfffff80004457538 reapsubtree: 1
 sigparent: 20
 vmspace: 0xfffffe0094c1f9f0
   (map 0xfffffe0094c1f9f0)
   (map.pmap 0xfffffe0094c1fab0)
   (pmap 0xfffffe0094c1fb10)
 threads: 1
100122                   Run     CPU 1                       syz-executor.1
db> ps
  pid  ppid  pgrp   uid  state   wmesg   wchan               cmd
27455   785   785     0  R       (threaded)                  syz-executor.2
115643                   RunQ                                syz-executor.2
129074                   RunQ                                syz-executor.2
129075                   S       uwait   0xfffff80038db2d80  syz-executor.2
27454   783   783     0  T       (threaded)                  syz-executor.1
112122                   Run     CPU 0                       syz-executor.1
27453   782   782     0  T       (threaded)                  syz-executor.0
112917                   s                                   syz-executor.0
129072                   RunQ                                syz-executor.0
24118 24112   782     0  SV      uwait   0xfffff8004b05a900  syz-executor.0
24112     1   782     0  RV                                  syz-executor.0
23911 23910   785     0  SV      uwait   0xfffff80038db2200  syz-executor.2
23910     1   785     0  RV                                  syz-executor.2
23846 23845   785     0  SV      uwait   0xfffff80038f0fe80  syz-executor.2
23845 23844   785     0  RV                                  syz-executor.2
23844 23842   785     0  DV      ppwait  0xfffff80038da6f58  syz-executor.2
23842     1   785     0  DV      ppwait  0xfffff80038f72a20  syz-executor.2
23820 23818   785     0  SV      uwait   0xfffff80038d9bd00  syz-executor.2
23819     1   785     0  SV      uwait   0xfffff80038db2000  syz-executor.2
23818 23817   785     0  DV      ppwait  0xfffff80038d90f58  syz-executor.2
23817     1   785     0  DV      ppwait  0xfffff8004b03ef58  syz-executor.2
17426     1   783     0  SV      uwait   0xfffff80038f9ed00  syz-executor.1
17422     1   783     0  SV      uwait   0xfffff80038f0f980  syz-executor.1
15055 15050   785     0  SV      uwait   0xfffff80038f9ec00  syz-executor.2
15050     1   785     0  RV                                  syz-executor.2
14890 14887   788     0  SV      uwait   0xfffff80038f0fa80  syz-executor.3
14887     1   788     0  RV                                  syz-executor.3
14284     1 14284    65  Ss      select  0xfffff80038435940  dhclient
12055     1 12055     0  Ss      select  0xfffff80038435740  dhclient
12050     1 12050     0  Ss      select  0xfffff80038435840  dhclient
11944     1 11944    65  Ss      select  0xfffff800044da640  dhclient
11903     1   783     0  SV      uwait   0xfffff80038d9bc00  syz-executor.1
11902 11899   783     0  SV      uwait   0xfffff80038db2580  syz-executor.1
11899 11897   783     0  DV      ppwait  0xfffff80038da6a20  syz-executor.1
11897     1   783     0  DV      ppwait  0xfffff80038dd7f58  syz-executor.1
 8906     1   782     0  SV      uwait   0xfffff80038db2400  syz-executor.0
 8901     1   788     0  SV      uwait   0xfffff80038db2780  syz-executor.3
 8765     1   785     0  SV      uwait   0xfffff80038bcc980  syz-executor.2
 8756     1   785     0  SV      uwait   0xfffff80038d9bf00  syz-executor.2
 8746     1   785     0  SV      uwait   0xfffff80004ba3c00  syz-executor.2
 8739     1   785     0  SV      uwait   0xfffff80038db2b80  syz-executor.2
 8726     1   785     0  SV      uwait   0xfffff80038db2880  syz-executor.2
 8617     1  8617     0  Ss      select  0xfffff80038435f40  dhclient
 8614     1  8614     0  Ss      select  0xfffff80038435e40  dhclient
 8593     1   782     0  SV      uwait   0xfffff80038d9b000  syz-executor.0
 8592     1  8592    65  Ss      select  0xfffff800044da6c0  dhclient
 8321     1   783     0  SV      uwait   0xfffff80038bccc00  syz-executor.1
 8220     1   785     0  SV      uwait   0xfffff80028c53280  syz-executor.2
 8207     1   785     0  SV      uwait   0xfffff80038bcc880  syz-executor.2
 8195     1   785     0  SV      uwait   0xfffff80038bcc680  syz-executor.2
 8188     1   783     0  SV      uwait   0xfffff80038bccf00  syz-executor.1
 8186     1   788     0  SV      uwait   0xfffff80038bcc480  syz-executor.3
 8184     1   785     0  SV      uwait   0xfffff80028c53a80  syz-executor.2
 8182     1   782     0  SV      uwait   0xfffff80038bcc380  syz-executor.0
 8180     1   783     0  SV      uwait   0xfffff80038bcc280  syz-executor.1
 8178     1   788     0  SV      uwait   0xfffff80038bccb00  syz-executor.3
 8176     1   785     0  SV      uwait   0xfffff80028c53380  syz-executor.2
 8174     1   782     0  SV      uwait   0xfffff80028c53180  syz-executor.0
 8172     1   783     0  SV      uwait   0xfffff80028c53080  syz-executor.1
 8170     1   788     0  SV      uwait   0xfffff80038bcce00  syz-executor.3
 8168     1   785     0  SV      uwait   0xfffff800388c7300  syz-executor.2
 8166     1   782     0  SV      uwait   0xfffff80038bccd00  syz-executor.0
 8164     1   783     0  SV      uwait   0xfffff8003860b380  syz-executor.1
 8162     1   788     0  SV      uwait   0xfffff800388c7500  syz-executor.3
 8160     1   785     0  SV      uwait   0xfffff800388c7600  syz-executor.2
 8158     1   782     0  SV      uwait   0xfffff80028c53680  syz-executor.0
 8156     1   783     0  SV      uwait   0xfffff800388c7200  syz-executor.1
 8154     1   788     0  SV      uwait   0xfffff80028ce3680  syz-executor.3
 8152     1   785     0  SV      uwait   0xfffff80028c53b80  syz-executor.2
 8150     1   782     0  SV      uwait   0xfffff80028b59380  syz-executor.0
 8148     1   783     0  SV      uwait   0xfffff80028c53980  syz-executor.1
 8146     1   788     0  SV      uwait   0xfffff80028c53580  syz-executor.3
 8144     1   785     0  SV      uwait   0xfffff8003860b080  syz-executor.2
 8142     1   782     0  SV      uwait   0xfffff80028c53880  syz-executor.0
 8140     1   783     0  SV      uwait   0xfffff8003860b180  syz-executor.1
 8138     1   788     0  SV      uwait   0xfffff800388c7d00  syz-executor.3
 8136     1   785     0  SV      uwait   0xfffff800388c7400  syz-executor.2
 8134     1   782     0  SV      uwait   0xfffff80028c53780  syz-executor.0
 8132     1   783     0  SV      uwait   0xfffff80028c53480  syz-executor.1
 8130     1   788     0  SV      uwait   0xfffff8003860b280  syz-executor.3
 8128     1   785     0  SV      uwait   0xfffff800388c7f00  syz-executor.2
 8126     1   782     0  SV      uwait   0xfffff800388c7b00  syz-executor.0
 8124     1   783     0  SV      uwait   0xfffff8003860b780  syz-executor.1
 8122     1   788     0  SV      uwait   0xfffff80028ce3100  syz-executor.3
 8120     1   785     0  SV      uwait   0xfffff80028ce3a80  syz-executor.2
 8118     1   782     0  SV      uwait   0xfffff800388c7e00  syz-executor.0
 8116     1   783     0  SV      uwait   0xfffff800388c7c00  syz-executor.1
 8112     1   788     0  SV      uwait   0xfffff8003860bd80  syz-executor.3
 8109     1   785     0  SV      uwait   0xfffff8002852e900  syz-executor.2
 8105     1   783     0  SV      uwait   0xfffff8003860b580  syz-executor.1
 8101     1   788     0  SV      uwait   0xfffff80028ce3500  syz-executor.3
 8098     1   785     0  SV      uwait   0xfffff80028ce3000  syz-executor.2
 8095     1   783     0  SV      uwait   0xfffff8003860b480  syz-executor.1
 8089     1   788     0  SV      uwait   0xfffff80004ba3b00  syz-executor.3
 8087     1   785     0  SV      uwait   0xfffff8003860bb80  syz-executor.2
 8080     1   788     0  SV      uwait   0xfffff80028b59480  syz-executor.3
 8077     1   785     0  SV      uwait   0xfffff80028b59280  syz-executor.2
 8071     1   788     0  SV      uwait   0xfffff8003860ba80  syz-executor.3
 8067     1   785     0  SV      uwait   0xfffff8003860b980  syz-executor.2
 8059     1   788     0  SV      uwait   0xfffff8003860b680  syz-executor.3
 8056     1   785     0  SV      uwait   0xfffff800283d4a00  syz-executor.2
 8049     1   788     0  SV      uwait   0xfffff80028ce3200  syz-executor.3
 8046     1   785     0  SV      uwait   0xfffff80028ce3300  syz-executor.2
 8044     1   783     0  SV      uwait   0xfffff800283d4300  syz-executor.1
 8041     1   782     0  SV      uwait   0xfffff80028ce3b80  syz-executor.0
 8040     1   788     0  SV      uwait   0xfffff8003860be80  syz-executor.3
 8035     1   783     0  SV      uwait   0xfffff80028ce3600  syz-executor.1
 8030     1   782     0  SV      uwait   0xfffff80028b59080  syz-executor.0
 8024     1   783     0  SV      uwait   0xfffff8002852e100  syz-executor.1
 8020     1   782     0  SV      uwait   0xfffff8000487b480  syz-executor.0
 8015     1   783     0  SV      uwait   0xfffff80028ce3d80  syz-executor.1
 8010     1   782     0  SV      uwait   0xfffff80004ba3180  syz-executor.0
 8006     1   783     0  SV      uwait   0xfffff80028ce3980  syz-executor.1
 8000     1   782     0  SV      uwait   0xfffff8003860b880  syz-executor.0
 7995     1   783     0  SV      uwait   0xfffff8003860bc80  syz-executor.1
 7990     1   782     0  SV      uwait   0xfffff800283d4400  syz-executor.0
 7984     1   783     0  SV      uwait   0xfffff800283d4000  syz-executor.1
 7980     1   782     0  SV      uwait   0xfffff80028c53f00  syz-executor.0
 7973     1   783     0  SV      uwait   0xfffff80028ce3400  syz-executor.1
 7969     1   782     0  SV      uwait   0xfffff80028b59180  syz-executor.0
 7965     1   788     0  SV      uwait   0xfffff80028b59580  syz-executor.3
 6999  6998   783     0  SV      uwait   0xfffff8002852e800  syz-executor.1
 6998     1   783     0  RV                                  syz-executor.1
 6985  6982   783     0  SV      uwait   0xfffff80004a9e200  syz-executor.1
 6982     1   783     0  RV                                  syz-executor.1
 6957     1   782     0  SV      uwait   0xfffff800283d4700  syz-executor.0
 6956     1   782     0  SV      uwait   0xfffff80028b59a80  syz-executor.0
 6939  6938   782     0  SV      uwait   0xfffff80028b59f00  syz-executor.0
 6938     1   782     0  RV                                  syz-executor.0
 6913     1   782     0  SV      uwait   0xfffff8002852e200  syz-executor.0
 6912     1   782     0  SV      uwait   0xfffff80028b59880  syz-executor.0
 6825  6824   783     0  SV      uwait   0xfffff80028b59680  syz-executor.1
 6824     1   783     0  RV                                  syz-executor.1
 6777     1   785     0  SV      uwait   0xfffff80028ce3880  syz-executor.2
 6765     1   785     0  SV      uwait   0xfffff80028ce3e80  syz-executor.2
 6756     1   785     0  SV      uwait   0xfffff8002852e700  syz-executor.2
 6746     1   785     0  SV      uwait   0xfffff80028b59c80  syz-executor.2
 6738     1   785     0  SV      uwait   0xfffff800283d4600  syz-executor.2
 6727     1   785     0  SV      uwait   0xfffff80028c53e00  syz-executor.2
 6721     1   785     0  SV      uwait   0xfffff80028b59e80  syz-executor.2
 6711     1   785     0  SV      uwait   0xfffff80028b59b80  syz-executor.2
 6699     1   785     0  SV      uwait   0xfffff80028b59980  syz-executor.2
 6687  6686   783     0  SV      uwait   0xfffff8002852e600  syz-executor.1
 6686     1   783     0  RV                                  syz-executor.1
 5010     1  5010     0  Ss      select  0xfffff800046cc1c0  dhclient
 4997     1  4997     0  Ss      select  0xfffff800046cc2c0  dhclient
 4926     1  4926    65  Ss      select  0xfffff800044da740  dhclient
  839     1   839     0  Ss      select  0xfffff800044da7c0  dhclient
  832     1   832     0  Ss      select  0xfffff800044da840  dhclient
  788   780   788     0  Ss      piperd  0xfffff800283ffba0  syz-executor.3
  785   780   785     0  Ss      wait    0xfffff80028531538  syz-executor.2
  783   780   783     0  Rs      CPU 1                       syz-executor.1
  782   780   782     0  Ss      wait    0xfffff80028531000  syz-executor.0
  780   778   778     0  R       (threaded)                  syz-fuzzer
100094                   S       uwait   0xfffff80004a9e400  syz-fuzzer
100114                   RunQ                                syz-fuzzer
100115                   S       uwait   0xfffff80004ba3700  syz-fuzzer
100116                   S       uwait   0xfffff80004ba3800  syz-fuzzer
100117                   S       uwait   0xfffff800282d9200  syz-fuzzer
100118                   S       uwait   0xfffff800282d9300  syz-fuzzer
100119                   S       uwait   0xfffff800282d9400  syz-fuzzer
100120                   RunQ                                syz-fuzzer
100121                   S       uwait   0xfffff800282d9480  syz-fuzzer
109127                   S       uwait   0xfffff80038f0f880  syz-fuzzer
  778   776   778     0  Ss      pause   0xfffff80004e69b20  csh
  776   694   776     0  Ss      select  0xfffff800046cc6c0  sshd
  760     1   760     0  Ss+     ttyin   0xfffff80004865cb0  getty
  759     1   759     0  Ss+     ttyin   0xfffff80004bbe0b0  getty
  758     1   758     0  Ss+     ttyin   0xfffff80004bbe4b0  getty
  757     1   757     0  Ss+     ttyin   0xfffff80004bbe8b0  getty
  756     1   756     0  Ss+     ttyin   0xfffff80004bbecb0  getty
  755     1   755     0  Ss+     ttyin   0xfffff80004b4c0b0  getty
  754     1   754     0  Ss+     ttyin   0xfffff80004b4c4b0  getty
  753     1   753     0  Ss+     ttyin   0xfffff80004b4c8b0  getty
  752     1   752     0  Ss+     ttyin   0xfffff80004b4ccb0  getty
  698     1   698     0  Rs                                  cron
  694     1   694     0  Ss      select  0xfffff800046ce940  sshd
  507     1   507     0  Rs                                  syslogd
  436     1   436     0  Rs                                  devd
  435     1   435    65  Ss      select  0xfffff800044dabc0  dhclient
  350     1   350     0  Ss      select  0xfffff800046cedc0  dhclient
  347     1   347     0  Ss      select  0xfffff800046ced40  dhclient
   23     0     0     0  RL                                  [syncer]
   22     0     0     0  RL                                  [vnlru]
   21     0     0     0  RL      (threaded)                  [bufdaemon]
100080                   RunQ                                [bufdaemon]
100085                   RunQ                                [bufspacedaemon-0]
100098                   RunQ                                [/ worker]
   20     0     0     0  DL      psleep  0xffffffff82851bc8  [vmdaemon]
   19     0     0     0  RL      (threaded)                  [pagedaemon]
100078                   RunQ                                [dom0]
100086                   D       launds  0xffffffff82846044  [laundry: dom0]
100087                   RunQ                                [uma]
   18     0     0     0  RL                                  [rand_harvestq]
   17     0     0     0  DL      waiting 0xffffffff82e32818  [sctp_iterator]
   16     0     0     0  RL                                  [pf purge]
   15     0     0     0  RL                                  [soaiod4]
    9     0     0     0  RL                                  [soaiod3]
    8     0     0     0  RL                                  [soaiod2]
    7     0     0     0  RL                                  [soaiod1]
    6     0     0     0  DL      (threaded)                  [cam]
100043                   D       -       0xffffffff824470c0  [doneq0]
100044                   D       -       0xffffffff82447040  [async]
100077                   D       -       0xffffffff82446f10  [scanner]
   14     0     0     0  DL      seqstat 0xfffff80004510888  [sequencer 00]
    5     0     0     0  DL      crypto_ 0xfffff800044ae290  [crypto returns 1]
    4     0     0     0  DL      crypto_ 0xfffff800044ae230  [crypto returns 0]
    3     0     0     0  DL      crypto_ 0xffffffff82843520  [crypto]
   13     0     0     0  DL      (threaded)                  [geom]
100034                   D       -       0xffffffff8271b0a0  [g_event]
100035                   D       -       0xffffffff8271b0a8  [g_up]
100036                   D       -       0xffffffff8271b0b0  [g_down]
    2     0     0     0  DL      (threaded)                  [KTLS]
100027                   D       -       0xfffff80004344b00  [thr_0]
100028                   D       -       0xfffff80004344b80  [thr_1]
   12     0     0     0  WL      (threaded)                  [intr]
100013                   I                                   [swi6: task queue]
100015                   I                                   [swi6: Giant taskq]
100017                   I                                   [swi5: fast taskq]
100029                   I                                   [swi3: vm]
100030                   I                                   [swi4: clock (0)]
100031                   I                                   [swi4: clock (1)]
100032                   I                                   [swi1: netisr 0]
100045                   I                                   [irq24: virtio_pci0]
100046                   I                                   [irq25: virtio_pci0]
100047                   I                                   [irq26: virtio_pci0]
100048                   I                                   [irq27: virtio_pci0]
100049                   I                                   [irq28: virtio_pci1]
100050                   I                                   [irq29: virtio_pci1]
100051                   I                                   [irq30: virtio_pci1]
100052                   I                                   [irq31: virtio_pci1]
100053                   I                                   [irq32: virtio_pci1]
100058                   I                                   [irq10: virtio_pci2]
100060                   I                                   [irq1: atkbd0]
100061                   I                                   [irq12: psm0]
100062                   I                                   [swi0: uart uart++]
100070                   I                                   [swi1: pf send]
100083                   I                                   [swi1: hpts]
100084                   I                                   [swi1: hpts]
   11     0     0     0  RL      (threaded)                  [idle]
100003                   CanRun                              [idle: cpu0]
100004                   CanRun                              [idle: cpu1]
    1     0     1     0  SLs     wait    0xfffff80004457538  [init]
   10     0     0     0  DL      audit_w 0xffffffff82843a40  [audit]
    0     0     0     0  RLs     (threaded)                  [kernel]
100000                   RunQ                                [swapper]
100005                   D       -       0xfffff80004089800  [if_io_tqg_0]
100006                   D       -       0xfffff80004089700  [if_io_tqg_1]
100007                   D       -       0xfffff80004089600  [if_config_tqg_0]
100008                   D       -       0xfffff80004089500  [softirq_0]
100009                   D       -       0xfffff80004089400  [softirq_1]
100010                   D       -       0xfffff8000434bd00  [kqueue_ctx taskq]
100011                   D       -       0xfffff8000434bc00  [inm_free taskq]
100012                   D       -       0xfffff8000434bb00  [linuxkpi_irq_wq]
100014                   D       -       0xfffff8000434b900  [aiod_kick taskq]
100016                   RunQ                                [thread taskq]
100018                   D       -       0xfffff8000434b500  [in6m_free taskq]
100019                   D       -       0xfffff8000434b400  [linuxkpi_short_wq_0]
100020                   D       -       0xfffff8000434b400  [linuxkpi_short_wq_1]
100021                   D       -       0xfffff8000434b400  [linuxkpi_short_wq_2]
100022                   D       -       0xfffff8000434b400  [linuxkpi_short_wq_3]
100023                   D       -       0xfffff8000434b300  [linuxkpi_long_wq_0]
100024                   D       -       0xfffff8000434b300  [linuxkpi_long_wq_1]
100025                   D       -       0xfffff8000434b300  [linuxkpi_long_wq_2]
100026                   D       -       0xfffff8000434b300  [linuxkpi_long_wq_3]
100033                   D       -       0xfffff8000434b200  [firmware taskq]
100037                   D       -       0xfffff8000434b100  [crypto_0]
100038                   D       -       0xfffff8000434b100  [crypto_1]
100054                   D       -       0xfffff8000469ec00  [vtnet0 rxq 0]
100055                   D       -       0xfffff8000469eb00  [vtnet0 txq 0]
100056                   D       -       0xfffff8000469ea00  [vtnet0 rxq 1]
100057                   D       -       0xfffff8000469e900  [vtnet0 txq 1]
100059                   D       vtbslp  0xfffff800046cf080  [virtio_balloon]
100063                   D       -       0xfffff8000469e800  [mca taskq]
100066                   RunQ                                [deadlkres]
100072                   D       -       0xfffff80004b52e00  [acpi_task_0]
100073                   D       -       0xfffff80004b52e00  [acpi_task_1]
100074                   D       -       0xfffff80004b52e00  [acpi_task_2]
100076                   D       -       0xfffff8000434b000  [CAM taskq]
db> show all locks
Process 14887 (syz-executor.3) thread 0xfffffe00950b5100 (112770)
exclusive sleep mutex process lock (process lock) r = 0 (0xfffff80038e7eb98) locked @ /syzkaller/managers/main/kernel/sys/kern/kern_fork.c:807
Process 783 (syz-executor.1) thread 0xfffffe0055778e00 (100122)
exclusive sleep mutex process lock (process lock) r = 0 (0xfffff80038d1a128) locked @ /syzkaller/managers/main/kernel/sys/kern/kern_proc.c:450
Process 0 (kernel) thread 0xfffffe000427c700 (100016)
exclusive sleep mutex vmem list lock (vmem list lock) r = 0 (0xffffffff82202a00) locked @ /syzkaller/managers/main/kernel/sys/kern/subr_vmem.c:784
db> show malloc
              Type        InUse        MemUse     Requests
           pf_hash            5        11524K            5
            devbuf         4216         4340K         4244
          tcp_hpts            5         3201K            5
          filedesc          272         2173K        53103
             vtbuf           24         1968K           46
         sysctloid        30935         1814K        31002
              kobj          332         1328K          492
            newblk            9         1026K        28979
          vfscache            3         1025K            3
           subproc          398          838K        27800
          inodedep          315          630K        28983
               pcb           72          589K        15070
         ufs_quota            1          512K            1
          vfs_hash            1          512K            1
           callout            2          512K            2
              intr            4          472K            4
            acpica         1674          184K        55406
         vnet_data            1          168K            1
           tidhash            3          141K            3
           pagedep            9          130K        28359
        tfo_ccache            1          128K            1
            DEVFS1          106          106K          123
               sem            4          106K            4
            linker          287          101K          322
               BPF           46           88K           46
           kdtrace          476           84K        56532
               bus          995           81K         3509
              umtx          612           77K          612
            dirrem          305           77K        28719
          mtx_pool            2           72K            2
          syncache            1           68K            1
          acpitask            1           64K            1
       ddb_capture            1           64K            1
            module          507           64K          507
          freefile          306           39K        28610
              vmem            3           36K            6
              temp           35           33K         2746
         hostcache            1           32K            1
               shm            1           32K          461
            DEVFS3          125           32K          135
               msg            4           30K            4
        gtaskqueue           18           26K           18
            kbdmux            6           22K            6
            ifaddr           70           20K           72
        DEVFS_RULE           56           20K           56
         sctp_timw           70           18K           70
         ufs_mount            5           17K            6
              proc            3           17K            3
               tty           16           16K           16
            kqueue          198           16K        28278
           ithread           99           16K           99
            bus-sc           33           14K         1719
            KTRACE          100           13K          100
             ifnet            7           13K            7
       ether_multi          152           13K          162
           pwddesc          190           12K        27456
           lltable           39           12K           43
              kenv           93           12K           93
      eventhandler          133           12K          133
              rman           84           10K          425
              GEOM           60           10K          489
         sctp_atcl           23            9K         8093
         in6_multi           65            9K           65
         bmsafemap            2            9K        28833
              UART           12            9K           12
           devstat            4            9K            4
              ksem            1            8K         1261
               rpc            2            8K            2
             shmfd            1            8K          719
       pfs_vncache            1            8K            1
         pfs_nodes           20            8K           20
     audit_evclass          236            8K          294
            sglist            5            7K            5
           CAM DEV            3            6K          510
            plimit           24            6K          439
              cred           24            6K          456
         taskqueue           57            6K           57
         CAM queue            5            6K         1528
            DEVFSP           78            5K           82
       ufs_dirhash           24            5K           24
           session           35            5K           48
               UMA          263            5K          263
          pf_ifnet           10            5K           19
                vt           11            5K           11
           memdesc            1            4K            1
               MCA           32            4K           32
             evdev            4            4K            4
          kcovinfo           64            4K           68
          routetbl           23            4K           23
           acpisem           28            4K           28
             selfd           55            4K       345606
             lockf           32            4K           57
             hhook           13            4K           13
       fpukern_ctx            3            3K            3
         proc-args           52            3K          661
          terminal           11            3K           11
            select           19            3K           50
           uidinfo            3            3K           41
        local_apic            1            2K            1
           io_apic            1            2K            1
         ipsec-saq            2            2K            2
            ip6ndp           12            2K           13
            Unitno           29            2K          337
          sctp_ifa           13            2K           14
           CAM XPT           22            2K          543
          in_multi            6            2K            8
       ipsecpolicy            2            2K            2
           acpidev           20            2K           20
               msi            9            2K            9
             clone            9            2K            9
               tun            7            2K            7
          freework            5            2K        28244
           softdep            1            1K            1
             mkdir            8            1K        56682
          freeblks            4            1K        28243
            sahead            1            1K            1
          secasvar            1            1K            1
             nhops            6            1K            8
       vnodemarker            2            1K           48
      NFSD session            1            1K            1
        CAM periph            4            1K          271
             ipsec            3            1K            3
          sctp_ifn            6            1K           14
               mld            6            1K            6
              igmp            6            1K            6
         toponodes            6            1K            6
            isadev            6            1K            6
         sctp_atky           23            1K         9149
             mount           16            1K           89
          pci_link           10            1K           10
       inpcbpolicy           21            1K         9920
            crypto            4            1K            4
 encap_export_host           12            1K           12
          procdesc            5            1K           14
      linuxcurrent            3            1K            4
         newdirblk            4            1K        28341
            diradd            4            1K        28759
              pfil            4            1K            4
           CAM SIM            2            1K            2
              cdev            2            1K            2
    chacha20random            1            1K            1
         sctp_athm           23            1K         8093
               osd            3            1K           10
      NFSD lckfile            1            1K            1
     NFSD V4client            1            1K            1
             DEVFS            9            1K           10
            vnodes            1            1K            1
              ktls            1            1K            1
            feeder            7            1K            7
           tcpfunc            3            1K            3
        loginclass            3            1K            6
            prison            6            1K            6
             linux            5            1K            6
        aesni_data            2            1K            2
            apmdev            1            1K            1
          atkbddev            2            1K            2
     CAM dev queue            2            1K            2
 CAM I/O Scheduler            1            1K            1
          CAM path            4            1K         1034
          pmchooks            1            1K            1
          nexusdev            7            1K            7
            soname            4            1K        13353
          filecaps            5            1K         2084
          sctp_vrf            1            1K            1
              vnet            1            1K            1
           entropy            2            1K           45
          acpiintr            1            1K            1
               pmc            1            1K            1
              cpus            2            1K            2
    vnet_data_free            1            1K            1
           Per-cpu            1            1K            1
          p1003.1b            1            1K            1
          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
            mqdata            0            0K            0
        sctp_mcore            0            0K            0
        sctp_socko            0            0K          465
         sctp_iter            0            0K            7
         sctp_mvrf            0            0K            0
         sctp_cpal            0            0K            0
         sctp_cmsg            0            0K            0
         sctp_stre            0            0K            0
         sctp_athi            0            0K            0
         sctp_a_it            0            0K            7
         sctp_aadr            0            0K            0
         sctp_stro            0            0K         1056
         sctp_stri            0            0K            0
          sctp_map            0            0K         2112
       NFSD string            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        15970
          sentinel            0            0K            0
            jfsync            0            0K            0
            jtrunc            0            0K            0
             sbdep            0            0K           22
           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
          freefrag            0            0K            8
        allocindir            0            0K            0
          indirdep            0            0K           10
       allocdirect            0            0K            0
          ufs_trim            0            0K            0
           mactemp            0            0K            0
     audit_trigger            0            0K            0
 audit_pipe_presel            0            0K            0
     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
            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
             radix            0            0K            0
               idr            0            0K            0
            lkpifw            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          675
       ip6_msource            0            0K            0
      ip6_moptions            0            0K            0
       in6_mfilter            0            0K            0
             frag6            0            0K            0
            tcplog            0            0K            0
        tcp_hwpace            0            0K            0
      twe_commands            0            0K            0
               LRO            0            0K            0
      newreno data            0            0K            0
        ip_msource            0            0K            0
       ip_moptions            0            0K           47
        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
      twa_commands            0            0K            0
            statfs            0            0K        28622
     namei_tracker            0            0K            0
       export_host            0            0K            0
        cl_savebuf            0            0K            4
       tcp_log_dev            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
         acpicmbat            0            0K            0
       SIIS driver            0            0K            0
           CAM CCB            0            0K         3298
               PUC            0            0K            0
          ppbusdev            0            0K            0
agtiapi_MemAlloc malloc            0            0K            0
    osti_cacheable            0            0K            0
          tempbuff            0            0K            0
            biobuf            0            0K            0
              aios            0            0K            0
               lio            0            0K            0
               acl            0            0K            0
          tempbuff            0            0K            0
          mbuf_tag            0            0K          116
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
        MVS driver            0            0K            0
     CAM ccb queue            0            0K            0
          mrsasbuf            0            0K            0
          mpt_user            0            0K            0
          mps_user            0            0K            0
              accf            0            0K            0
               pts            0            0K            0
               iov            0            0K        26006
          ioctlops            0            0K          741
           eventfd            0            0K            0
           Witness            0            0K            0
             stack            0            0K            0
            MPSSAS            0            0K            0
               mps            0            0K            0
          mpr_user            0            0K            0
            MPRSAS            0            0K            0
               mpr            0            0K            0
            mfibuf            0            0K            0
              sbuf            0            0K          288
        md_sectors            0            0K            0
          firmware            0            0K            0
        compressor            0            0K            0
           md_disk            0            0K            0
              SWAP            0            0K            0
           malodev            0            0K            0
               LED            0            0K            0
         sysctltmp            0            0K          765
            sysctl            0            0K            1
              ekcd            0            0K            0
            dumper            0            0K            0
          sendfile            0            0K            0
              rctl            0            0K            0
          ix_sriov            0            0K            0
        aacraidcam            0            0K            0
       aacraid_buf            0            0K            0
                ix            0            0K            0
            ipsbuf            0            0K            0
             cache            0            0K            0
            iirbuf            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
            aaccam            0            0K            0
            aacbuf            0            0K            0
              zstd            0            0K            0
            XZ_DEC            0            0K            0
            nvlist            0            0K            0
          SCSI ENC            0            0K            0
           SCSI sa            0            0K            0
         scsi_pass            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 diroff            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
db> show uma
              Zone   Size    Used    Free    Requests  Sleeps  Bucket  Total Mem    XFree
   mbuf_jumbo_page   4096    8321     961       45270       0     254   38019072        0
         FFS inode   1160     623    1645       29259       0       9    2630880        0
              pbuf   2624       0     973           0       0       2    2553152        0
              mbuf    256    8724     816      138774       0     254    2442240        0
      malloc-16384  16384     137       5       26551       0       1    2326528        0
        malloc-384    384     314    5136       29235       0      30    2092800        0
          BUF TRIE    144     196   13272        1200       0      62    1939392        0
        malloc-384    384    4339      11        4475       0      30    1670400        0
        malloc-256    256     422    5113       29621       0      62    1416960        0
        malloc-128    128   10711     170       40140       0     126    1392768        0
       malloc-4096   4096     333       2         576       0       2    1372160        0
       UMA Slabs 0    112   10821      12       10821       0     126    1213296        0
        RADIX NODE    144    7631     402      608944       0      63    1156752        0
      mbuf_cluster   2048     555       1         555       0     254    1138688        0
             VNODE    448     659    1690       29297       0      30    1052352        0
       malloc-4096   4096     214       5       28022       0       2     897024        0
         VM OBJECT    264    3078      72      388935       0      30     831600        0
         MAP ENTRY     96    7342     302     1504170       0     126     733824        0
         sctp_asoc   2288       0     300        1056       0     254     686400        0
        malloc-256    256     185    2215       23756       0      62     614400        0
       FFS2 dinode    256     623    1642       29259       0      62     579840        0
            THREAD   1792     285      21       29075       0       8     548352        0
        malloc-128    128     322    3398       28636       0     126     476160        0
           sctp_ep   1280      23     322        7037       0     254     441600        0
           VMSPACE   2544     146      10       27306       0       4     396864        0
      malloc-65536  65536       5       0           5       0       1     327680        0
      malloc-65536  65536       0       5         212       0       1     327680        0
      malloc-65536  65536       4       1          12       0       1     327680        0
        256 Bucket   2048     138      14       11238       0       8     311296        0
              PROC   1336     189      18       27455       0       8     276552        0
         malloc-64     64    3484     485       30810       0     254     254016        0
        malloc-256    256     397     578       58957       0      62     249600        0
       malloc-2048   2048      29      89        7274       0       8     241664        0
        sctp_raddr    736       0     308        1056       0     254     226688        0
         filedesc0   1072     190      20       27456       0       8     225120        0
            DEVCTL   1024       0     216         131       0       0     221184        0
         malloc-16     16   12834     166       13346       0     254     208000        0
         UMA Zones    768     235       4         235       0      16     183552        0
        malloc-128    128    1363      32       26954       0     126     178560        0
       malloc-2048   2048       5      79        4344       0       8     172032        0
            socket    944      69     107       19507       0     254     166144        0
         vmem btag     56    2893      47        2893       0     254     164640        0
         malloc-32     32    4880     160        4907       0     254     161280        0
       S VFS Cache    104    1026     378       34607       0     126     146016        0
       mbuf_packet    256       6     549       27502       0     254     142080        0
         64 Bucket    512     210      54       12766       0      30     135168        0
      malloc-65536  65536       0       2         136       0       1     131072        0
             g_bio    408       0     320       10639       0      30     130560        0
        malloc-128    128     953      39        4164       0     126     126976        0
       malloc-1024   1024     117       3         866       0      16     122880        0
         32 Bucket    256     290     175       18743       0      62     119040        0
          ksiginfo    112     193     851        1338       0     126     116928        0
        128 Bucket   1024      79      32        6431       0      16     113664        0
       malloc-1024   1024       3     105        1099       0      16     110592        0
      malloc-32768  32768       1       2         131       0       1      98304        0
       malloc-4096   4096      22       0          22       0       2      90112        0
         malloc-64     64     904     482       28700       0     254      88704        0
        malloc-384    384      23     207        8094       0      30      88320        0
          UMA Kegs    384     220       3         220       0      30      85632        0
            clpbuf   2624       0      32          20       0      16      83968        0
       malloc-8192   8192       7       3         110       0       1      81920        0
             tcpcb   1048       4      62        3132       0     254      69168        0
      malloc-16384  16384       4       0           4       0       1      65536        0
       malloc-8192   8192       7       0           7       0       1      57344        0
         malloc-64     64     256     626       45116       0     254      56448        0
              pipe    744      37      38        9057       0      16      55800        0
         udp_inpcb    488       7     105        5485       0     254      54656        0
        malloc-256    256      62     148       29042       0      62      53760        0
      malloc-16384  16384       1       2         171       0       1      49152        0
         malloc-64     64     700      56        2624       0     254      48384        0
             Files     80     287     263       80252       0     126      44000        0
        malloc-128    128      27     314       85330       0     126      43648        0
         TURNSTILE    136     307       8         307       0      62      42840        0
            pcpu-8      8    4628     492        4784       0     254      40960        0
        malloc-384    384      90      10          97       0      30      38400        0
           DIRHASH   1024      34       2          34       0      16      36864        0
             NAMEI   1024       0      36      143136       0      16      36864        0
       malloc-2048   2048       1      17         519       0       8      36864        0
        malloc-512    512      10      62         519       0      30      36864        0
         malloc-64     64      86     481      345720       0     254      36288        0
      malloc-32768  32768       1       0           1       0       1      32768        0
      malloc-32768  32768       1       0           1       0       1      32768        0
      malloc-16384  16384       1       1           7       0       1      32768        0
       malloc-8192   8192       3       1           4       0       1      32768        0
       malloc-2048   2048      16       0          17       0       8      32768        0
       malloc-1024   1024      26       6          27       0      16      32768        0
           pcpu-64     64     479      33         479       0     254      32768        0
          8 Bucket     80     187     213        5188       0     126      32000        0
         tcp_inpcb    488       4      60        3132       0     254      31232        0
        SLEEPQUEUE     88     307      45         307       0     126      30976        0
        malloc-256    256     104      16        2629       0      62      30720        0
       malloc-4096   4096       3       4       28632       0       2      28672        0
               PWD     32     128     754       26507       0     254      28224        0
             KNOTE    160      30     145       92245       0      62      28000        0
        malloc-256    256      11      94       85325       0      62      26880        0
       malloc-8192   8192       0       3          28       0       1      24576        0
         malloc-32     32      62     694        9065       0     254      24192        0
         malloc-32     32     349     407        4426       0     254      24192        0
            ttyinq    160     135      15         300       0      62      24000        0
     udplite_inpcb    488       4      44         658       0     254      23424        0
             unpcb    256      20      70        2509       0     254      23040        0
           ttyoutq    256      72      18         160       0      62      23040        0
       malloc-1024   1024      16       4        1268       0      16      20480        0
         malloc-64     64       5     310         245       0     254      20160        0
             ripcb    488       6      34         645       0     254      19520        0
       Mountpoints   2752       2       5           2       0       4      19264        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-32     32     141     363       26922       0     254      16128        0
         malloc-32     32      43     461         814       0     254      16128        0
         16 Bucket    144      90      22         443       0      62      16128        0
          2 Bucket     32      54     450        4849       0     254      16128        0
      vtnet_tx_hdr     24       0     668       37801       0     254      16032        0
        malloc-128    128      83      41         423       0     126      15872        0
        sctp_chunk    152       0     104          70       0     254      15808        0
        malloc-384    384      31       9          31       0      30      15360        0
       tcp_bbr_pcb    832       0      18          79       0      16      14976        0
            cpuset    104       8     116         859       0     126      12896        0
       malloc-2048   2048       2       4        1989       0       8      12288        0
        malloc-512    512       0      24         118       0      30      12288        0
         malloc-32     32     147     231        5043       0     254      12096        0
         malloc-16     16      40     710        9278       0     254      12000        0
         malloc-16     16     471     279        7996       0     254      12000        0
         malloc-16     16      37     713       27973       0     254      12000        0
        malloc-128    128      73      20        5224       0     126      11904        0
              kenv    258      15      30        1061       0      30      11610        0
     routing nhops    256      27      18          34       0      62      11520        0
        malloc-256    256      23      22         741       0      62      11520        0
       malloc-4096   4096       0       2          17       0       2       8192        0
       malloc-4096   4096       1       1           2       0       2       8192        0
       malloc-2048   2048       1       3          13       0       8       8192        0
       malloc-2048   2048       1       3           2       0       8       8192        0
       malloc-1024   1024       0       8         722       0      16       8192        0
       malloc-1024   1024       5       3           5       0      16       8192        0
       malloc-1024   1024       2       6          10       0      16       8192        0
       malloc-1024   1024       2       6           2       0      16       8192        0
        malloc-512    512       7       9          79       0      30       8192        0
        malloc-512    512       2      14          61       0      30       8192        0
        malloc-512    512      11       5          11       0      30       8192        0
           rtentry    176      30      16          34       0      62       8096        0
              PGRP     88      35      57          48       0     126       8096        0
          rl_entry     40      73     129          73       0     254       8080        0
sctp_stream_msg_out    112       0      72         813       0     254       8064        0
        sctp_laddr     48       0     168          24       0     254       8064        0
             udpcb     32      11     241        6143       0     254       8064        0
         malloc-64     64       9     117          61       0     254       8064        0
         malloc-32     32      20     232          20       0     254       8064        0
         malloc-32     32      25     227       10089       0     254       8064        0
          4 Bucket     48       7     161         767       0     254       8064        0
         malloc-16     16      31     469          85       0     254       8000        0
         malloc-16     16      24     476          30       0     254       8000        0
         malloc-16     16       6     494           7       0     254       8000        0
        malloc-128    128      32      30          48       0     126       7936        0
            itimer    352       0      22         140       0      30       7744        0
        malloc-384    384       1      19         347       0      30       7680        0
        malloc-384    384       2      18           2       0      30       7680        0
     FPU_save_area    832       1       8           1       0      16       7488        0
         domainset     40       0     126         706       0     254       5040        0
 epoch_record pcpu    256       4      12           4       0      62       4096        0
       malloc-4096   4096       1       0           1       0       2       4096        0
        malloc-512    512       1       7           1       0      30       4096        0
           pcpu-16     16       7     249           7       0     254       4096        0
          syncache    168       0      24           4       0     254       4032        0
         malloc-64     64       1      62           1       0     254       4032        0
         hostcache     80       1      49           1       0     254       4000        0
         malloc-16     16       0     250           1       0     254       4000        0
       tcp_bbr_map    128       0      31         129       0     126       3968        0
       UMA Slabs 1    176       9      13           9       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       2      29           2       0     254        992        0
        SMR SHARED     24       2      29           2       0     254        744        0
       FFS1 dinode    128       0       0           0       0     126          0        0
             swblk    136       0       0           0       0      62          0        0
          swpctrie    144       0       0           0       0      62          0        0
   sctp_asconf_ack     48       0       0           0       0     254          0        0
       sctp_asconf     40       0       0           0       0     254          0        0
        sctp_readq    152       0       0           0       0     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_rack_pcb    704       0       0           0       0      16          0        0
      tcp_rack_map    120       0       0           0       0     126          0        0
    IPsec SA lft_c     16       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
            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
        TMPFS node    224       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
     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
        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-65536  65536       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-16384  16384       0       0           0       0       1          0        0
      malloc-16384  16384       0       0           0       0       1          0        0
      malloc-16384  16384       0       0           0       0       1          0        0
       malloc-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-2048   2048       0       0           0       0       8          0        0
        malloc-512    512       0       0           0       0      30          0        0
        malloc-512    512       0       0           0       0      30          0        0
        malloc-384    384       0       0           0       0      30          0        0
        malloc-256    256       0       0           0       0      62          0        0
           pcpu-32     32       0       0           0       0     254          0        0
            pcpu-4      4       0       0           0       0     254          0        0
            fakepg    104       0       0           0       0     126          0        0
          UMA Hash    256       0       0           0       0      62          0        0

Crashes (1):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets Title
ci-freebsd-main 2021/04/12 16:15 freebsd-src 5e98cae661f3 bfeda1b1 console log report panic: _mtx_lock_sleep: recursed on non-recursive mutex process lock @ /syzkaller/managers/main/kernel/sys/kern/kern_eve
* Struck through repros no longer work on HEAD.