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

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syzbot

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Apr 12, 2021, 12:16:26 PM4/12/21
to syzkaller-f...@googlegroups.com
Hello,

syzbot found the following issue on:

HEAD commit: 5e98cae6 pf: Ensure that we don't use kif passed to pfi_kk..
git tree: https://github.com/freebsd/freebsd-src.git main
console output: https://syzkaller.appspot.com/x/log.txt?x=1278b6f9d00000
dashboard link: https://syzkaller.appspot.com/bug?extid=b532c1011181868dcd46

Unfortunately, I don't have any reproducer for this issue yet.

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+b532c1...@syzkaller.appspotmail.com

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 4

---
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Mark Johnston

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May 11, 2021, 4:44:28 PM5/11/21
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#syz fix: filt_timerexpire: avoid process lock recursion
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