syzbot


panic: Bad link elm ADDR prev->next != elm (2)

Status: fixed on 2021/09/19 21:04
Reported-by: syzbot+c6793f0f0ce698bce230@syzkaller.appspotmail.com
Fix commit: e19d93b19dce sctp: fix FCFS stream scheduler
First crash: 516d, last: 505d
similar bugs (2):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
freebsd panic: Bad link elm ADDR prev->next != elm (3) 8 374d 426d 2/2 fixed on 2022/02/03 16:54
freebsd panic: Bad link elm ADDR prev->next != elm C 1224 519d 1104d 0/2 closed as dup on 2021/09/07 22:45

Sample crash report:
panic: Bad link elm 0xfffffe00a7e9e1c0 prev->next != elm
cpuid = 0
time = 2000001273
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0xc7/frame 0xfffffe0053b62250
kdb_backtrace() at kdb_backtrace+0xd3/frame 0xfffffe0053b623b0
vpanic() at vpanic+0x2c5/frame 0xfffffe0053b62490
panic() at panic+0xb5/frame 0xfffffe0053b62560
sctp_ss_fcfs_remove() at sctp_ss_fcfs_remove+0x20a/frame 0xfffffe0053b625b0
sctp_free_assoc() at sctp_free_assoc+0x1a95/frame 0xfffffe0053b62710
sctp_timeout_handler() at sctp_timeout_handler+0x1a96/frame 0xfffffe0053b62850
softclock_call_cc() at softclock_call_cc+0x3d9/frame 0xfffffe0053b62a00
softclock() at softclock+0x152/frame 0xfffffe0053b62a50
ithread_loop() at ithread_loop+0x4f1/frame 0xfffffe0053b62bb0
fork_exit() at fork_exit+0xd0/frame 0xfffffe0053b62bf0
fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe0053b62bf0
--- trap 0, rip = 0, rsp = 0, rbp = 0 ---
KDB: enter: panic
[ thread pid 12 tid 100034 ]
Stopped at      kdb_enter+0x6b: movq    $0,0x28e25ea(%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         0x5cd0db54c60be7f0
rdx                        0x1
rbx                          0
rsp         0xfffffe0053b62390
rbp         0xfffffe0053b623b0
rsi                          0
rdi         0xffffffff817babda  vprintf+0x35a
r8                           0
r9          0xfffffe0053b61ec8
r10                          0
r11                       0xbf
r12         0xfffffe0053e351e0
r13         0xfffffe0053b62401
r14         0xffffffff82c7dcc0  .str.18
r15         0xffffffff82c7dcc0  .str.18
rip         0xffffffff817ae54b  kdb_enter+0x6b
rflags                    0x46
kdb_enter+0x6b: movq    $0,0x28e25ea(%rip)
db> show proc
Process 12 (intr) at 0xfffffe0053dfba70:
 state: NORMAL
 uid: 0  gids: 0
 parent: pid 0 at 0xffffffff84031f00
 ABI: null
 flag: 0x10000284  flag2: 0
 reaper: 0xffffffff84031f00 reapsubtree: 12
 sigparent: 20
 vmspace: 0xffffffff84032e80
   (map 0xffffffff84032e80)
   (map.pmap 0xffffffff84032f40)
   (pmap 0xffffffff84032fa0)
 threads: 23
100011                   I                                   [swi6: task queue]
100012                   I                                   [swi6: Giant taskq]
100014                   I                                   [swi5: fast taskq]
100032                   I                                   [swi1: netisr 0]
100033                   I                                   [swi3: vm]
100034                   Run     CPU 0                       [swi4: clock (0)]
100035                   I                                   [swi4: clock (1)]
100036                   I                                   [swi1: hpts]
100037                   I                                   [swi1: hpts]
100050                   I                                   [irq24: virtio_pci0]
100051                   I                                   [irq25: virtio_pci0]
100052                   I                                   [irq26: virtio_pci0]
100053                   I                                   [irq27: virtio_pci0]
100054                   I                                   [irq28: virtio_pci1]
100055                   I                                   [irq29: virtio_pci1]
100056                   I                                   [irq30: virtio_pci1]
100057                   I                                   [irq31: virtio_pci1]
100058                   I                                   [irq32: virtio_pci1]
100063                   I                                   [irq10: virtio_pci2]
100065                   I                                   [irq1: atkbd0]
100066                   I                                   [irq12: psm0]
100067                   I                                   [swi0: uart uart++]
100075                   I                                   [swi1: pf send]
db> ps
  pid  ppid  pgrp   uid  state   wmesg   wchan               cmd
24165   787   787     0  R       (threaded)                  syz-executor.3
141050                   RunQ                                syz-executor.3
141077                   RunQ                                syz-executor.3
24164   783   783     0  R       (threaded)                  syz-executor.1
141036                   Run     CPU 1                       syz-executor.1
141074                   S       sbwait  0xfffffe00a7681d44  syz-executor.1
141075                   S       sbwait  0xfffffe00a8079d44  syz-executor.1
141076                   S       sbwait  0xfffffe00a40e1204  syz-executor.1
24146     1   783     0  S       uwait   0xfffffe00aaaeea00  syz-executor.1
24136     1   783     0  S       uwait   0xfffffe00aaaaa180  syz-executor.1
24127     1   783     0  S       uwait   0xfffffe00a809e600  syz-executor.1
24123     1   783     0  S       uwait   0xfffffe00aaaaaf00  syz-executor.1
24115     1   783     0  S       uwait   0xfffffe00aaaaa700  syz-executor.1
24104     1   782     0  S       uwait   0xfffffe00aaaaa480  syz-executor.0
24103     1   782     0  S       uwait   0xfffffe00aaaaa080  syz-executor.0
24097     1   786     0  S       uwait   0xfffffe00a81a4980  syz-executor.2
24096     1   782     0  S       uwait   0xfffffe00a8be9400  syz-executor.0
24095     1   786     0  S       uwait   0xfffffe00a81a4480  syz-executor.2
24093     1   782     0  S       uwait   0xfffffe00aaaee600  syz-executor.0
24091     1   786     0  S       uwait   0xfffffe00aaaaab00  syz-executor.2
24090     1   782     0  S       uwait   0xfffffe00a8be9500  syz-executor.0
24089     1   786     0  S       uwait   0xfffffe00a809ec00  syz-executor.2
24088     1   782     0  S       uwait   0xfffffe00aaaeeb00  syz-executor.0
24085     1   786     0  S       uwait   0xfffffe00aaaaae00  syz-executor.2
24084     1   786     0  S       uwait   0xfffffe00aaaaaa00  syz-executor.2
24082     1   786     0  S       uwait   0xfffffe00a8be9a80  syz-executor.2
24081     1   786     0  S       uwait   0xfffffe00a866c680  syz-executor.2
24080     1   786     0  S       uwait   0xfffffe00aaaeee00  syz-executor.2
24079     1   786     0  S       uwait   0xfffffe00a866c380  syz-executor.2
24063     1   787     0  S       uwait   0xfffffe00a81a4580  syz-executor.3
24060     1   787     0  S       uwait   0xfffffe00aaaaa580  syz-executor.3
24058     1   783     0  S       uwait   0xfffffe00aaaee300  syz-executor.1
24054     1   783     0  S       uwait   0xfffffe00aaaee700  syz-executor.1
24052     1   783     0  S       uwait   0xfffffe00aaaee100  syz-executor.1
24051     1   787     0  S       umtxn   0xfffffe00a84e0080  syz-executor.3
24046     1   787     0  S       uwait   0xfffffe00a81a4880  syz-executor.3
24045     1   787     0  S       uwait   0xfffffe00aaaaad00  syz-executor.3
23615     1   787     0  S       uwait   0xfffffe00a809eb00  syz-executor.3
23608     1   787     0  S       uwait   0xfffffe00aaaaa280  syz-executor.3
23598     1   787     0  S       uwait   0xfffffe00aaaaa900  syz-executor.3
23594     1   787     0  S       uwait   0xfffffe00aaaaa380  syz-executor.3
23584     1   787     0  S       uwait   0xfffffe00aaaee000  syz-executor.3
22248     1   782     0  S       uwait   0xfffffe00aaaeef00  syz-executor.0
22246     1   782     0  S       uwait   0xfffffe00aaaaac00  syz-executor.0
22243     1   782     0  S       uwait   0xfffffe00a83a8280  syz-executor.0
22240     1 22238     0  S       uwait   0xfffffe00a7952b80  syz-executor.0
22239     1   782     0  S       uwait   0xfffffe00a8077800  syz-executor.0
21428     1   787     0  S       uwait   0xfffffe00a7fb1580  syz-executor.3
21426     1   787     0  S       uwait   0xfffffe00a2f47f00  syz-executor.3
21258     1   782     0  S       uwait   0xfffffe00a866c880  syz-executor.0
21255     1   782     0  S       uwait   0xfffffe00a7dd7200  syz-executor.0
21185     0     0     0  DL      (threaded)                  [zfskern]
135285                   D       t->zthr 0xfffffe00a761ac48  [arc_evict]
135313                   D       t->zthr 0xfffffe00a7611448  [arc_reap]
135314                   D       -       0xfffffe00a78d4200  [dbu_evict]
135315                   D       dbuf_ev 0xffffffff85aa0380  [dbuf_evict_thread]
135316                   D       -       0xfffffe00a7919c00  [z_vdev_file_0]
135317                   D       -       0xfffffe00a7919c00  [z_vdev_file_1]
135318                   D       -       0xfffffe00a7919c00  [z_vdev_file_2]
135319                   D       -       0xfffffe00a7919c00  [z_vdev_file_3]
135320                   D       -       0xfffffe00a7919c00  [z_vdev_file_4]
135321                   D       -       0xfffffe00a7919c00  [z_vdev_file_5]
135322                   D       -       0xfffffe00a7919c00  [z_vdev_file_6]
135323                   D       -       0xfffffe00a7919c00  [z_vdev_file_7]
135324                   D       -       0xfffffe00a7919c00  [z_vdev_file_8]
135325                   D       -       0xfffffe00a7919c00  [z_vdev_file_9]
135326                   D       -       0xfffffe00a7919c00  [z_vdev_file_10]
135327                   D       -       0xfffffe00a7919c00  [z_vdev_file_11]
135328                   D       -       0xfffffe00a7919c00  [z_vdev_file_12]
135329                   D       -       0xfffffe00a7919c00  [z_vdev_file_13]
135330                   D       -       0xfffffe00a7919c00  [z_vdev_file_14]
135331                   D       -       0xfffffe00a7919c00  [z_vdev_file_15]
135332                   D       l2arc_f 0xffffffff85a8f380  [l2arc_feed_thread]
135333                   D       -       0xfffffe00a78ca300  [zfsvfs]
135334                   S       zevent_ 0xffffffff85aa1340  [sysevent]
20178     1   783     0  S       uwait   0xfffffe00a83a8180  syz-executor.1
20176     1   783     0  S       uwait   0xfffffe00a83a8680  syz-executor.1
20173     1   783     0  S       uwait   0xfffffe00a809ea00  syz-executor.1
20170     1   783     0  S       uwait   0xfffffe00a81a4d80  syz-executor.1
20169     1   783     0  S       uwait   0xfffffe00a809e000  syz-executor.1
19713 19709   782     0  SV      sigwait 0xfffffe00a82eb5e8  syz-executor.0
19709     1   782     0  DV      ppwait  0xfffffe00a82eba20  syz-executor.0
18662     1   787     0  S       uwait   0xfffffe00a83a8b80  syz-executor.3
18661     1   787     0  S       uwait   0xfffffe00a866c980  syz-executor.3
18318     1   786     0  S       uwait   0xfffffe00a2f47100  syz-executor.2
18316     1   786     0  S       uwait   0xfffffe00a83a8880  syz-executor.2
18314     1   786     0  S       uwait   0xfffffe00a7fb1e80  syz-executor.2
18310     1   786     0  S       uwait   0xfffffe00a7fb1400  syz-executor.2
17973     1   783     0  S       uwait   0xfffffe00a83a8580  syz-executor.1
17972     1   783     0  S       uwait   0xfffffe00a83a8980  syz-executor.1
16359     1   786     0  S       uwait   0xfffffe00a866c480  syz-executor.2
16354     1   783     0  S       uwait   0xfffffe00a809e300  syz-executor.1
16348     1   786     0  S       uwait   0xfffffe00a83a8480  syz-executor.2
16340     1   783     0  S       uwait   0xfffffe00a83a8e80  syz-executor.1
16338     1   786     0  S       uwait   0xfffffe00a7fb1880  syz-executor.2
16333     1   783     0  S       umtxn   0xfffffe00a84e0880  syz-executor.1
16331     1   783     0  S       uwait   0xfffffe00a866ca80  syz-executor.1
16327     1   783     0  S       uwait   0xfffffe00a866ce80  syz-executor.1
15381     1   782     0  SV      sigwait 0xfffffe00a82e15e8  syz-executor.0
15371     1   782     0  SV      sigwait 0xfffffe00a83a15e8  syz-executor.0
15365     1   782     0  SV      sigwait 0xfffffe00a805b5e8  syz-executor.0
15363     1   786     0  S       uwait   0xfffffe00a866cb80  syz-executor.2
15359     1   782     0  SV      uwait   0xfffffe00a809e500  syz-executor.0
15358     1   786     0  S       uwait   0xfffffe00a866cc80  syz-executor.2
15354     1   786     0  S       uwait   0xfffffe00a84e0f00  syz-executor.2
15353     1   782     0  SV      sigwait 0xfffffe00a82e2b20  syz-executor.0
15349     1   786     0  S       uwait   0xfffffe00a7dd7880  syz-executor.2
15345     1   786     0  S       uwait   0xfffffe00a84e0b00  syz-executor.2
14631     1   786     0  S       uwait   0xfffffe00a8077700  syz-executor.2
14630     1   786     0  S       uwait   0xfffffe00a2e55080  syz-executor.2
14629     1   786     0  S       uwait   0xfffffe00a84e0c00  syz-executor.2
14628     1   786     0  S       uwait   0xfffffe00a84e0480  syz-executor.2
13851     1   787     0  S       uwait   0xfffffe00a8077d00  syz-executor.3
13846     1   787     0  S       uwait   0xfffffe00a866c780  syz-executor.3
13843     1   787     0  S       umtxn   0xfffffe00a7dd7700  syz-executor.3
13836     1   787     0  S       uwait   0xfffffe00a2f47200  syz-executor.3
13832     1   787     0  S       uwait   0xfffffe00a7952480  syz-executor.3
13163     1   782     0  S       uwait   0xfffffe00a8077c00  syz-executor.0
13160     1   782     0  S       uwait   0xfffffe00a84e0180  syz-executor.0
13158     1   782     0  S       uwait   0xfffffe00a8077e00  syz-executor.0
13156     1   782     0  S       uwait   0xfffffe00a7fb1c80  syz-executor.0
13152     1   782     0  S       uwait   0xfffffe00a7dd7100  syz-executor.0
13149     1   782     0  S       uwait   0xfffffe00a84e0a00  syz-executor.0
13147     1   782     0  S       uwait   0xfffffe00a7fb1780  syz-executor.0
13144     1   782     0  S       uwait   0xfffffe00a7dd7800  syz-executor.0
11833     1   782     0  S       uwait   0xfffffe00a7dd7600  syz-executor.0
11832     1   786     0  S       uwait   0xfffffe00a7dd7a80  syz-executor.2
11824     1   787     0  S       uwait   0xfffffe00a7dd7c00  syz-executor.3
11823     1   786     0  S       uwait   0xfffffe00a84e0d00  syz-executor.2
11822     1   783     0  S       uwait   0xfffffe00a2e55a80  syz-executor.1
11821     1   782     0  S       uwait   0xfffffe00a7dd7400  syz-executor.0
11813     1   783     0  S       uwait   0xfffffe00584f0000  syz-executor.1
11812     1   787     0  S       uwait   0xfffffe00a7fb1080  syz-executor.3
11810     1   782     0  S       uwait   0xfffffe00a7fb1d80  syz-executor.0
11808     1   786     0  S       uwait   0xfffffe009e4f0080  syz-executor.2
11803     1   783     0  S       uwait   0xfffffe00a2ed3500  syz-executor.1
11800     1   787     0  S       uwait   0xfffffe00a84e0e00  syz-executor.3
11791     1   787     0  S       uwait   0xfffffe00a2ed3b00  syz-executor.3
11786     1   787     0  S       uwait   0xfffffe00a7fb1680  syz-executor.3
11248     1   787     0  S       uwait   0xfffffe00a84e0680  syz-executor.3
11244     1   787     0  S       uwait   0xfffffe00a7fb1a80  syz-executor.3
11240     1   787     0  S       uwait   0xfffffe00a7952380  syz-executor.3
11238     1   787     0  S       uwait   0xfffffe00a84e0580  syz-executor.3
11237     1   787     0  S       uwait   0xfffffe00a7fb1280  syz-executor.3
10909     1   783     0  S       uwait   0xfffffe00a7fb1980  syz-executor.1
10908     1   786     0  S       uwait   0xfffffe00a7952180  syz-executor.2
10906     1   783     0  S       uwait   0xfffffe00a7952c80  syz-executor.1
10905     1   786     0  S       uwait   0xfffffe00a7952d80  syz-executor.2
10900     1   786     0  S       uwait   0xfffffe00a2f47900  syz-executor.2
10899     1   783     0  S       uwait   0xfffffe009e4f0180  syz-executor.1
10897     1   783     0  S       uwait   0xfffffe00a2ed3200  syz-executor.1
10895     1   786     0  S       uwait   0xfffffe00a7952880  syz-executor.2
10892     1   783     0  S       uwait   0xfffffe00a2e55280  syz-executor.1
10891     1   786     0  S       uwait   0xfffffe00a2e55780  syz-executor.2
10890     1   783     0  S       umtxn   0xfffffe00a7fb1b80  syz-executor.1
10889     1   786     0  S       uwait   0xfffffe00a2e55c80  syz-executor.2
10882     1   783     0  S       uwait   0xfffffe00a7fb1180  syz-executor.1
10880     1   783     0  S       uwait   0xfffffe00a7952680  syz-executor.1
10879     1   783     0  S       uwait   0xfffffe00a2ed3f00  syz-executor.1
10877     1   783     0  S       uwait   0xfffffe00a2f47600  syz-executor.1
 9099     1   787     0  S       uwait   0xfffffe00584f0b80  syz-executor.3
 9097     1   782     0  S       uwait   0xfffffe00a2ed3300  syz-executor.0
 9094     1   787     0  S       uwait   0xfffffe00a2ed3100  syz-executor.3
 9093     1   786     0  S       uwait   0xfffffe00a7dd7d00  syz-executor.2
 9091     1   782     0  S       uwait   0xfffffe00a2f47800  syz-executor.0
 9088     1   782     0  S       uwait   0xfffffe00a7952e80  syz-executor.0
 9087     1   786     0  S       uwait   0xfffffe00a2f47300  syz-executor.2
 9086     1   787     0  S       uwait   0xfffffe00a2e55e80  syz-executor.3
 9081     1   786     0  S       uwait   0xfffffe00a7952a80  syz-executor.2
 9078     1   786     0  S       uwait   0xfffffe005893e100  syz-executor.2
 9077     1   786     0  S       uwait   0xfffffe00a7dd7f00  syz-executor.2
 8707     1   787     0  S       uwait   0xfffffe00a7952980  syz-executor.3
 8706     1   786     0  S       uwait   0xfffffe00a2f47500  syz-executor.2
 8696     1   786     0  S       uwait   0xfffffe00a2e55880  syz-executor.2
 8695     1   782     0  S       uwait   0xfffffe00a2e55680  syz-executor.0
 8694     1   787     0  S       uwait   0xfffffe00a7952080  syz-executor.3
 8686     1   787     0  S       uwait   0xfffffe00a2ed3a00  syz-executor.3
 8685     1   782     0  S       uwait   0xfffffe00a7dd7e00  syz-executor.0
 8683     1   786     0  S       uwait   0xfffffe005893e180  syz-executor.2
 8675     1   782     0  S       uwait   0xfffffe00a2e55b80  syz-executor.0
 8666     1   782     0  S       uwait   0xfffffe005893e880  syz-executor.0
 8665     1   782     0  S       uwait   0xfffffe00584f0200  syz-executor.0
 7577     0     0     0  DL      mdwait  0xfffffe00a7fc0000  [md3]
 7573     0     0     0  DL      mdwait  0xfffffe00a7fb2000  [md2]
 7570     0     0     0  DL      mdwait  0xfffffe00a766a000  [md1]
 7566     0     0     0  DL      mdwait  0xfffffe00a4106000  [md0]
 6924     1   782     0  S       uwait   0xfffffe005893eb80  syz-executor.0
 6923     1   783     0  S       uwait   0xfffffe00a7952580  syz-executor.1
 6918     1   782     0  S       uwait   0xfffffe00a7952280  syz-executor.0
 6917     1   783     0  S       uwait   0xfffffe00a2e55980  syz-executor.1
 6908     1   782     0  S       uwait   0xfffffe00a2e55580  syz-executor.0
 6906     1   783     0  S       uwait   0xfffffe00a2f47000  syz-executor.1
 6898     1   783     0  S       uwait   0xfffffe0057018900  syz-executor.1
 6896     1   783     0  S       uwait   0xfffffe00a2f47d00  syz-executor.1
 5145     1   786     0  S       uwait   0xfffffe00584f0300  syz-executor.2
 5141     1   786     0  S       uwait   0xfffffe00a2ed3c00  syz-executor.2
 5138     1   786     0  S       uwait   0xfffffe00a2f47a00  syz-executor.2
 5135     1   786     0  S       uwait   0xfffffe00a2e55480  syz-executor.2
 5133     1   786     0  S       umtxn   0xfffffe00584f0600  syz-executor.2
 5131     1   786     0  S       uwait   0xfffffe00a2f47c00  syz-executor.2
 5129     1   786     0  S       uwait   0xfffffe009e4f0480  syz-executor.2
 5127     1   786     0  S       uwait   0xfffffe009e4f0580  syz-executor.2
 4410     1  4410    65  Ss      select  0xfffffe00a8747c40  dhclient
 4167     0     0     0  DL      mdwait  0xfffffe0058894000  [md49036]
 3552     1  3552     0  Ss      select  0xfffffe00a40da4c0  dhclient
 3549     1  3549     0  Ss      select  0xfffffe00a40da440  dhclient
 3530     1  3530    65  Ss      select  0xfffffe00a40da5c0  dhclient
 3232     0     0     0  DL      aiordy  0xfffffe005892b538  [aiod4]
 3231     0     0     0  DL      aiordy  0xfffffe00a2e35000  [aiod3]
 3230     0     0     0  DL      aiordy  0xfffffe00a2e83538  [aiod2]
 3229     0     0     0  DL      aiordy  0xfffffe00a2e35a70  [aiod1]
 2690     1  2690     0  Ss      select  0xfffffe00a40dae40  dhclient
 2687     1  2687     0  Ss      select  0xfffffe009e511840  dhclient
 2668     1  2668    65  Ss      select  0xfffffe00a40da740  dhclient
 2070     1  2070     0  Ss      select  0xfffffe005741d7c0  dhclient
 2067     1  2067     0  Ss      select  0xfffffe009e511b40  dhclient
 2045     1  2045    65  Ss      select  0xfffffe009e511740  dhclient
 1225     1  1225     0  Ss      select  0xfffffe00a2e5a140  dhclient
 1222     1  1222     0  Ss      select  0xfffffe00a2e5d7c0  dhclient
  787   780   787     0  Rs                                  syz-executor.3
  786   780   786     0  Rs                                  syz-executor.2
  783   780   783     0  Rs                                  syz-executor.1
  782   780   782     0  Rs                                  syz-executor.0
  780   778   778     0  S       (threaded)                  syz-fuzzer
100100                   S       kqread  0xfffffe0058b1b000  syz-fuzzer
100122                   S       uwait   0xfffffe005740a200  syz-fuzzer
100123                   S       uwait   0xfffffe005740a300  syz-fuzzer
100124                   S       uwait   0xfffffe005740a400  syz-fuzzer
100125                   S       uwait   0xfffffe009e4f0680  syz-fuzzer
100126                   S       uwait   0xfffffe009e4f0780  syz-fuzzer
100127                   S       uwait   0xfffffe009e4f0c80  syz-fuzzer
100128                   S       uwait   0xfffffe009e4f0d80  syz-fuzzer
100268                   S       uwait   0xfffffe00584f0100  syz-fuzzer
  778   776   778     0  Ss      pause   0xfffffe0058b2e0b0  csh
  776   694   776     0  Ss      select  0xfffffe009e511bc0  sshd
  760     1   760     0  Ss+     ttyin   0xfffffe0057006cb0  getty
  759     1   759     0  Ss+     ttyin   0xfffffe00575e54b0  getty
  758     1   758     0  Ss+     ttyin   0xfffffe00575e5cb0  getty
  757     1   757     0  Ss+     ttyin   0xfffffe00575e24b0  getty
  756     1   756     0  Ss+     ttyin   0xfffffe00575e2cb0  getty
  755     1   755     0  Ss+     ttyin   0xfffffe00575de4b0  getty
  754     1   754     0  Ss+     ttyin   0xfffffe00575decb0  getty
  753     1   753     0  Ss+     ttyin   0xfffffe00575d94b0  getty
  752     1   752     0  Ss+     ttyin   0xfffffe00575d9cb0  getty
  698     1   698     0  Ss      nanslp  0xffffffff8405da41  cron
  694     1   694     0  Ss      select  0xfffffe0058afb040  sshd
  507     1   507     0  Ss      select  0xfffffe0058afb4c0  syslogd
  436     1   436     0  Ss      select  0xfffffe005741dac0  devd
  435     1   435    65  Ss      select  0xfffffe0058afb740  dhclient
  350     1   350     0  Ss      select  0xfffffe0058afb6c0  dhclient
  347     1   347     0  Ss      select  0xfffffe005741da40  dhclient
   23     0     0     0  DL      syncer  0xffffffff84185de0  [syncer]
   22     0     0     0  DL      vlruwt  0xfffffe00584f6538  [vnlru]
   21     0     0     0  DL      (threaded)                  [bufdaemon]
100085                   D       qsleep  0xffffffff84183ae0  [bufdaemon]
100088                   D       -       0xffffffff83411f80  [bufspacedaemon-0]
100101                   D       sdflush 0xfffffe00574860e8  [/ worker]
   20     0     0     0  DL      psleep  0xffffffff841bc000  [vmdaemon]
   19     0     0     0  RL      (threaded)                  [pagedaemon]
100083                   RunQ                                [dom0]
100089                   D       launds  0xffffffff841afb44  [laundry: dom0]
100090                   D       umarcl  0xffffffff81eb0ff0  [uma]
   18     0     0     0  DL      -       0xffffffff83e14120  [rand_harvestq]
   17     0     0     0  DL      waiting 0xffffffff849ce520  [sctp_iterator]
   16     0     0     0  DL      pftm    0xffffffff84d151a0  [pf purge]
   15     0     0     0  DL      -       0xffffffff8417ed00  [soaiod4]
    9     0     0     0  DL      -       0xffffffff8417ed00  [soaiod3]
    8     0     0     0  DL      -       0xffffffff8417ed00  [soaiod2]
    7     0     0     0  DL      -       0xffffffff8417ed00  [soaiod1]
    6     0     0     0  DL      (threaded)                  [cam]
100048                   D       -       0xffffffff83c998c0  [doneq0]
100049                   D       -       0xffffffff83c99840  [async]
100082                   D       -       0xffffffff83c996c0  [scanner]
   14     0     0     0  DL      seqstat 0xfffffe0056abec88  [sequencer 00]
    5     0     0     0  DL      crypto_ 0xfffffe00541c1d80  [crypto returns 1]
    4     0     0     0  DL      crypto_ 0xfffffe00541c1d30  [crypto returns 0]
    3     0     0     0  DL      crypto_ 0xffffffff841a9be0  [crypto]
   13     0     0     0  DL      (threaded)                  [geom]
100039                   D       -       0xffffffff84031000  [g_event]
100040                   D       -       0xffffffff84031040  [g_up]
100041                   D       -       0xffffffff84031080  [g_down]
    2     0     0     0  DL      (threaded)                  [KTLS]
100029                   D       -       0xfffffe00081f6d00  [thr_0]
100030                   D       -       0xfffffe00081f6d80  [thr_1]
100031                   D       -       0xffffffff84180088  [alloc_0]
   12     0     0     0  RL      (threaded)                  [intr]
100011                   I                                   [swi6: task queue]
100012                   I                                   [swi6: Giant taskq]
100014                   I                                   [swi5: fast taskq]
100032                   I                                   [swi1: netisr 0]
100033                   I                                   [swi3: vm]
100034                   Run     CPU 0                       [swi4: clock (0)]
100035                   I                                   [swi4: clock (1)]
100036                   I                                   [swi1: hpts]
100037                   I                                   [swi1: hpts]
100050                   I                                   [irq24: virtio_pci0]
100051                   I                                   [irq25: virtio_pci0]
100052                   I                                   [irq26: virtio_pci0]
100053                   I                                   [irq27: virtio_pci0]
100054                   I                                   [irq28: virtio_pci1]
100055                   I                                   [irq29: virtio_pci1]
100056                   I                                   [irq30: virtio_pci1]
100057                   I                                   [irq31: virtio_pci1]
100058                   I                                   [irq32: virtio_pci1]
100063                   I                                   [irq10: virtio_pci2]
100065                   I                                   [irq1: atkbd0]
100066                   I                                   [irq12: psm0]
100067                   I                                   [swi0: uart uart++]
100075                   I                                   [swi1: pf send]
   11     0     0     0  RL      (threaded)                  [idle]
100003                   CanRun                              [idle: cpu0]
100004                   CanRun                              [idle: cpu1]
    1     0     1     0  SLs     wait    0xfffffe0053d60538  [init]
   10     0     0     0  DL      audit_w 0xffffffff841aab80  [audit]
    0     0     0     0  DLs     (threaded)                  [kernel]
100000                   D       swapin  0xffffffff84031f00  [swapper]
100005                   D       -       0xfffffe00081f8900  [softirq_0]
100006                   D       -       0xfffffe00081f8700  [softirq_1]
100007                   D       -       0xfffffe00081f8500  [if_io_tqg_0]
100008                   D       -       0xfffffe00081f8300  [if_io_tqg_1]
100009                   D       -       0xfffffe00081f8100  [if_config_tqg_0]
100010                   D       -       0xfffffe0053dfae00  [deferred_unmount ta]
100013                   D       -       0xfffffe0053dfa800  [thread taskq]
100015                   D       -       0xfffffe0053dfa400  [linuxkpi_irq_wq]
100016                   D       -       0xfffffe0053dfa200  [kqueue_ctx taskq]
100017                   D       -       0xfffffe0053dfa000  [pci_hp taskq]
100018                   D       -       0xfffffe0053e04d00  [aiod_kick taskq]
100019                   D       -       0xfffffe0053e04b00  [inm_free taskq]
100020                   D       -       0xfffffe0053e04900  [in6m_free taskq]
100021                   D       -       0xfffffe0053e04700  [linuxkpi_short_wq_0]
100022                   D       -       0xfffffe0053e04700  [linuxkpi_short_wq_1]
100023                   D       -       0xfffffe0053e04700  [linuxkpi_short_wq_2]
100024                   D       -       0xfffffe0053e04700  [linuxkpi_short_wq_3]
100025                   D       -       0xfffffe0053e04200  [linuxkpi_long_wq_0]
100026                   D       -       0xfffffe0053e04200  [linuxkpi_long_wq_1]
100027                   D       -       0xfffffe0053e04200  [linuxkpi_long_wq_2]
100028                   D       -       0xfffffe0053e04200  [linuxkpi_long_wq_3]
100038                   D       -       0xfffffe0053e0e200  [firmware taskq]
100042                   D       -       0xfffffe0054196c00  [crypto_0]
100043                   D       -       0xfffffe0054196c00  [crypto_1]
100059                   D       -       0xfffffe0056eb9b00  [vtnet0 rxq 0]
100060                   D       -       0xfffffe0056eb9a00  [vtnet0 txq 0]
100061                   D       -       0xfffffe0056eb9900  [vtnet0 rxq 1]
100062                   D       -       0xfffffe0056eb9800  [vtnet0 txq 1]
100064                   D       vtbslp  0xfffffe0056fe8600  [virtio_balloon]
100068                   D       -       0xfffffe0057019800  [mca taskq]
100073                   D       -       0xffffffff82c84c40  [deadlkres]
100077                   D       -       0xfffffe00573f2600  [acpi_task_0]
100078                   D       -       0xfffffe00573f2600  [acpi_task_1]
100079                   D       -       0xfffffe00573f2600  [acpi_task_2]
100081                   D       -       0xfffffe0054196400  [CAM taskq]
135307                   D       -       0xfffffe00a7917c00  [system_taskq_0]
135308                   D       -       0xfffffe00a7917c00  [system_taskq_1]
135309                   D       -       0xfffffe00a78ddb00  [system_delay_taskq_]
135310                   D       -       0xfffffe00a78ddb00  [system_delay_taskq_]
135311                   D       -       0xfffffe00a78dd200  [arc_prune_0]
135312                   D       -       0xfffffe00a78dd200  [arc_prune_1]
db> show all locks
Process 24164 (syz-executor.1) thread 0xfffffe00aaaa4000 (141074)
exclusive sx so_rcv_sx (so_rcv_sx) r = 0 (0xfffffe00a7681cc0) locked @ /syzkaller/managers/main/kernel/sys/kern/uipc_socket.c:4157
Process 24164 (syz-executor.1) thread 0xfffffe00a8076740 (141075)
exclusive sx so_rcv_sx (so_rcv_sx) r = 0 (0xfffffe00a8079cc0) locked @ /syzkaller/managers/main/kernel/sys/kern/uipc_socket.c:4157
Process 24164 (syz-executor.1) thread 0xfffffe00a905e560 (141076)
exclusive sx so_rcv_sx (so_rcv_sx) r = 0 (0xfffffe00a40e1180) locked @ /syzkaller/managers/main/kernel/sys/kern/uipc_socket.c:4157
Process 12 (intr) thread 0xfffffe0053e351e0 (100034)
exclusive sleep mutex sctp-send-tcb (tcbs) r = 0 (0xfffffe00a81a9c90) locked @ /syzkaller/managers/main/kernel/sys/netinet/sctp_pcb.c:4836
exclusive sleep mutex sctp-tcb (tcb) r = 0 (0xfffffe00a81a9c70) locked @ /syzkaller/managers/main/kernel/sys/netinet/sctp_pcb.c:4835
exclusive rw sctp-info (sctp-info) r = 0 (0xfffffe00081b7318) locked @ /syzkaller/managers/main/kernel/sys/netinet/sctp_pcb.c:4833
db> show malloc
              Type        InUse        MemUse     Requests
           pf_hash            5        11524K            5
            linker          378        10029K          494
            devbuf         4213         4323K         4247
          tcp_hpts            6         3201K            6
         sysctloid        48033         2825K        48137
           solaris          129         2804K          199
          filedesc          344         2750K        45893
         sctp_stro          185         2236K        11776
             vtbuf           24         1968K           46
              kobj          326         1304K          528
               pcb          597         1172K        63017
           subproc          484         1041K        24485
            newblk           31         1032K        49323
          vfscache            3         1025K            3
          inodedep          215          593K        25227
         ufs_quota            1          512K            1
          vfs_hash            1          512K            1
           callout            2          512K            2
              intr            4          472K            4
              vmem            3          276K            6
            acpica         1674          184K        55237
         sctp_atcl          476          179K        41628
         vnet_data            1          168K            1
           tidhash            3          141K            3
           pagedep           31          136K        23263
        tfo_ccache            1          128K            1
            DEVFS1          114          114K          131
               sem            4          106K            4
           kdtrace          589          103K        65244
              umtx          748           94K          748
               BPF           46           88K          162
               bus          986           80K         3480
          mtx_pool            2           72K            2
          syncache            1           68K            1
            module          513           65K          513
          acpitask            1           64K            1
       ddb_capture            1           64K            1
            dirrem          202           51K        24356
               shm            4           38K           73
              temp           36           35K         4981
            DEVFS3          133           34K          143
         hostcache            1           32K            1
               msg            4           30K            4
         sctp_atky          669           27K        55307
        gtaskqueue           18           26K           18
          freefile          184           23K        24155
            kbdmux            6           22K            6
           md_disk           10           21K           20
        md_sectors            5           20K            5
            ifaddr           70           20K           74
        DEVFS_RULE           56           20K           56
          routetbl          161           20K         1894
           lltable           56           18K         1026
            kqueue          239           18K        24445
        kstat_data           17           17K           17
         ufs_mount            4           17K            5
              proc            3           17K            3
         sctp_timw           64           16K           64
               tty           16           16K           16
           ithread           99           16K           99
              ksem           37           15K          502
              GEOM           96           15K          721
           pwddesc          236           15K        24392
            bus-sc           34           15K         1691
            KTRACE          101           13K      1221020
             ifnet            7           13K            7
       ether_multi          152           13K          182
           devstat            6           13K            6
              kenv           95           12K           95
      eventhandler          136           12K          136
           pf_rule           13           11K          594
            DEVFSP          165           11K         3938
         CAM queue            5           11K         1528
              rman           84           10K          425
           pf_osfp           81            9K           81
         in6_multi           65            9K           65
         taskqueue           81            9K           81
         bmsafemap            2            9K        25183
              UART           12            9K           12
               rpc            2            8K            2
             shmfd            1            8K          148
       pfs_vncache            1            8K            1
         pfs_nodes           20            8K           20
         sctp_athm          476            8K        42830
     audit_evclass          237            8K          295
               UMA          370            7K          370
          pf_ifnet           23            7K          624
              cred           26            7K          571
             lockf           59            7K         1224
            sglist            5            7K            5
           CAM DEV            3            6K          510
            plimit           24            6K          730
          sctp_map          370            6K        23368
             xform           87            6K         6573
       ufs_dirhash           24            5K           24
           session           35            5K           77
                vt           11            5K           11
          pf_table            2            4K          352
         sctp_stri            8            4K         2574
           memdesc            1            4K            1
               MCA           32            4K           32
             evdev            4            4K            4
          kcovinfo           64            4K           68
           acpisem           28            4K           28
             selfd           55            4K       303239
             hhook           15            4K           17
         newdirblk           26            4K        22985
         proc-args           52            3K          805
          terminal           11            3K           11
            select           19            3K         1517
           uidinfo            3            3K           84
        local_apic            1            2K            1
           io_apic            1            2K            1
       fpukern_ctx            2            2K            2
         ipsec-saq            2            2K            2
            ip6ndp           12            2K           14
          sctp_ifa           14            2K           15
            Unitno           29            2K          321
       inpcbpolicy           52            2K        18364
           CAM XPT           22            2K          543
          in_multi            6            2K           12
       vnodemarker            3            2K         1175
               osd           67            2K         8310
       ipsecpolicy            2            2K            2
           acpidev           20            2K           20
               msi            9            2K            9
             clone            9            2K            9
               tun            7            2K            7
          freework            5            2K        33609
           softdep            1            1K            1
             mkdir            8            1K        45970
          freeblks            4            1K        24302
            sahead            1            1K            1
          secasvar            1            1K            1
             nhops            6            1K            8
      NFSD session            1            1K            1
        CAM periph            4            1K          271
             ipsec            3            1K            3
          sctp_ifn            6            1K           15
               mld            6            1K            6
              igmp            6            1K            6
         toponodes            6            1K            6
            isadev            6            1K            6
           tcp_fsb           17            1K         2045
             mount           16            1K         1495
          pci_link           10            1K           10
            crypto            4            1K         2285
 encap_export_host           12            1K           12
          procdesc            5            1K           18
            diradd            4            1K        24397
              pfil            4            1K            4
              cdev            2            1K            2
    chacha20random            1            1K            1
           eventfd            3            1K           65
         sctp_aadr            5            1K          259
filedesc_to_leader            5            1K           39
      NFSD lckfile            1            1K            1
     NFSD V4client            1            1K            1
             DEVFS            9            1K           10
       ip6_msource            4            1K           99
            vnodes            1            1K           37
           CAM SIM            2            1K            2
              ktls            1            1K           11
            prison            8            1K            8
            feeder            7            1K            7
             taskq            2            1K            2
           tcpfunc            3            1K            3
        loginclass            3            1K            6
       lkpikmalloc            5            1K            6
        aesni_data            2            1K            2
          nexusdev            8            1K            8
            apmdev            1            1K            1
          atkbddev            2            1K            2
     CAM dev queue            2            1K            2
 CAM I/O Scheduler            1            1K            1
        ip_msource            2            1K           72
           VN POLL            1            1K           20
          CAM path            4            1K         1034
          pmchooks            1            1K            1
            soname            4            1K        35053
          filecaps            5            1K          125
          sctp_vrf            1            1K            1
              vnet            1            1K            1
           entropy            2            1K           49
               iov            1            1K        36086
          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
         sfs_nodes            0            0K            0
        zones_data            0            0K            0
        vegas data            0            0K           61
           pf_altq            0            0K            0
           pf_temp            0            0K            0
          cdg data            0            0K           41
          chd data            0            0K           65
         htcp data            0            0K           49
        cubic data            0            0K           47
        sctp_mcore            0            0K            0
        sctp_socko            0            0K        19034
         sctp_iter            0            0K           49
         sctp_mvrf            0            0K            0
         sctp_cpal            0            0K           48
         sctp_cmsg            0            0K            0
         sctp_stre            0            0K            0
         sctp_athi            0            0K            0
         sctp_a_it            0            0K           12
        dctcp data            0            0K           65
            mqdata            0            0K            0
      NFSCL diroff            0            0K            0
       NEWdirectio            0            0K            0
        madt_table            0            0K            2
          smartpqi            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
              iavf            0            0K            0
               ixl            0            0K            0
           NFS req            0            0K            0
     NFSD usrgroup            0            0K            0
       NFSD string            0            0K            0
       NFSD V4lock            0            0K            0
      NFSD V4state            0            0K            0
        ice-resmgr            0            0K            0
         ice-osdep            0            0K            0
               ice            0            0K            0
             axgbe            0            0K            0
     NFSD srvcache            0            0K            0
       msdosfs_fat            0            0K            0
     msdosfs_mount            0            0K            0
      msdosfs_node            0            0K            0
            DEVFS4            0            0K            0
          xen_intr            0            0K            0
            DEVFS2            0            0K            0
            gntdev            0            0K            0
           xen_hvm            0            0K            0
         legacydrv            0            0K            0
            qpidrv            0            0K            0
       privcmd_dev            0            0K            0
        evtchn_dev            0            0K            0
      dmar_idpgtbl            0            0K            0
          dmar_dom            0            0K            0
          dmar_ctx            0            0K            0
          xenstore            0            0K            0
         ciss_data            0            0K            0
         BACKLIGHT            0            0K            0
              isci            0            0K            0
      iommu_dmamap            0            0K            0
               xnb            0            0K            0
     hyperv_socket            0            0K            0
           bxe_ilt            0            0K            0
              xbbd            0            0K            0
            xenbus            0            0K            0
               xbd            0            0K            0
           Balloon            0            0K            0
          sysmouse            0            0K            0
     vm_fictitious            0            0K            0
            vtfont            0            0K            0
           ath_hal            0            0K            0
            athdev            0            0K            0
           ata_pci            0            0K            0
           ata_dma            0            0K            0
       ata_generic            0            0K            0
               amr            0            0K            0
            pvscsi            0            0K            0
           scsi_da            0            0K           69
           UMAHash            0            0K            0
            ata_da            0            0K            0
         vm_pgdata            0            0K            0
           jblocks            0            0K            0
          savedino            0            0K        18768
          sentinel            0            0K            0
            jfsync            0            0K            0
            jtrunc            0            0K            0
             sbdep            0            0K          579
           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           89
        allocindir            0            0K            0
          indirdep            0            0K        11797
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           mactemp            0            0K            0
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            USBdev            0            0K            0
               USB            0            0K            0
               agp            0            0K            0
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          ktls_ocf            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
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        MLX5EEPROM            0            0K            0
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             radix            0            0K            0
               idr            0            0K            0
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               NLM            0            0K            0
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         ipsec-reg            0            0K            0
        ipsec-misc            0            0K            0
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            ip6opt            0            0K          357
      ip6_moptions            0            0K           72
       in6_mfilter            0            0K          244
             frag6            0            0K            0
            tcplog            0            0K            0
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               LRO            0            0K            0
      newreno data            0            0K           37
       ip_moptions            0            0K           76
        in_mfilter            0            0K          176
              ipid            0            0K            0
         80211scan            0            0K            0
      80211ratectl            0            0K            0
        80211power            0            0K            0
       80211nodeie            0            0K            0
         80211node            0            0K            0
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      80211mesh_rt            0            0K            0
         80211perr            0            0K            0
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         80211preq            0            0K            0
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          80211vap            0            0K            0
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               gif            0            0K            0
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              zlib            0            0K            0
           fadvise            0            0K            8
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            statfs            0            0K        23500
     namei_tracker            0            0K           84
       export_host            0            0K            0
        cl_savebuf            0            0K          254
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      twa_commands            0            0K            0
       tcp_log_dev            0            0K          848
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             mixer            0            0K            0
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             hdacc            0            0K            0
              hdac            0            0K            0
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           CAM CCB            0            0K          523
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agtiapi_MemAlloc malloc            0            0K            0
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          mbuf_tag            0            0K          497
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          tempbuff            0            0K            0
ag_tgt_map_t malloc            0            0K            0
ag_slr_map_t malloc            0            0K            0
lDevFlags * malloc            0            0K            0
tiDeviceHandle_t * malloc            0            0K            0
ag_portal_data_t malloc            0            0K            0
ag_device_t malloc            0            0K            0
     STLock malloc            0            0K            0
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               OCS            0            0K            0
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db> show uma
              Zone   Size    Used    Free    Requests  Sleeps  Bucket  Total Mem    XFree
   mbuf_jumbo_page   4096    8320    1323      184984       0     254   39497728        0
           tcp_log    416     122   19984     1495986       0     254    8364096        0
              mbuf    256    9207    4308     5297057       0     254    3459840        0
    ertt_txseginfo     40   73865    3905     3163578       0     254    3110800        0
      malloc-16384  16384     171       5       22944       0       1    2883584        0
              pbuf   2624       0     941           0       0       2    2469184        0
       malloc-4096   4096     565       4       25337       0       2    2330624        0
        malloc-128    128   16080      40       19046       0     126    2063360        0
        RADIX NODE    144   12775     940      661378       0      62    1974960        0
        malloc-384    384    4383     327       29563       0      30    1808640        0
          BUF TRIE    144     424   11336       38731       0      62    1693440        0
      mbuf_cluster   2048     735       1         735       0     254    1507328        0
       UMA Slabs 0    112   11708      25       11708       0     126    1314096        0
         vmem btag     56   23230      73       23230       0     254    1304968        0
         MAP ENTRY     96   10454     298     1436192       0     126    1032192        0
         sctp_asoc   2288     185     265       11684       0     254    1029600        0
         VM OBJECT    264    3554      76      359249       0      30     958320        0
         FFS inode   1160     656      23       24859       0       8     787640        0
       malloc-2048   2048     291      91       28431       0       8     782336        0
       tcp_bbr_map    128    1330    4343     1083059       0     126     726144        0
           sctp_ep   1272     283     281       28404       0     254     717408        0
            THREAD   1808     351      23       41077       0       8     676192        0
        256 Bucket   2048     273      47       32758       0       8     655360        0
        malloc-256    256     614    1801      117299       0      62     618240        0
           VMSPACE   2544     202       8       24117       0       4     534240        0
            socket    960     180     240       49488       0     254     403200        0
         malloc-64     64    6153      84       55090       0     254     399168        0
      malloc-65536  65536       6       0           6       0       1     393216        0
            lkpimm    168       1    2327           1       0      62     391104        0
          lkpicurr    168       2    2326           2       0      62     391104        0
        sctp_raddr    736     201     327       13538       0     254     388608        0
             VNODE    448     696      60       24901       0      30     338688        0
         malloc-16     16   20331     419       44648       0     254     332000        0
              PROC   1336     236      10       24165       0       8     328656        0
      malloc-32768  32768       1       9         163       0       1     327680        0
       malloc-1024   1024     185     131       11602       0      16     323584        0
        malloc-384    384     519     211       42646       0      30     280320        0
         tcp_inpcb    496      40     496        8269       0     254     265856        0
         UMA Zones    768     342       2         342       0      16     264192        0
         filedesc0   1072     236       9       24392       0       8     262640        0
         malloc-32     32    7776     162        8734       0     254     254016        0
      malloc-32768  32768       0       7       10682       0       1     229376        0
            DEVCTL   1024       0     220         169       0       0     225280        0
      malloc-65536  65536       1       2        1013       0       1     196608        0
      malloc-65536  65536       1       2         137       0       1     196608        0
        malloc-128    128    1491      28        7054       0     126     194432        0
       mbuf_packet    256     159     576      107433       0     254     188160        0
        malloc-128    128    1216     241       71763       0     126     186496        0
        sctp_chunk    152     172    1050       17886       0     254     185744        0
       FFS2 dinode    256     656      64       24858       0      62     184320        0
            clpbuf   2624       0      64        3490       0      16     167936        0
             tcpcb   1080      38     116        8269       0     254     166320        0
       malloc-1024   1024     156       4         173       0      16     163840        0
       S VFS Cache    104    1039     404       25981       0     126     150072        0
        malloc-256    256     285     300       48651       0      62     149760        0
        malloc-256    256     341     244       86927       0      62     149760        0
        malloc-256    256      60     510       18923       0      62     145920        0
        128 Bucket   1024      95      36       10851       0      16     134144        0
zio_buf_comb_131072 131072       0       1           1       0       1     131072        0
      malloc-65536  65536       0       2          58       0       1     131072        0
      malloc-65536  65536       0       2         299       0       1     131072        0
          UMA Kegs    384     327       6         327       0      30     127872        0
             g_bio    408       0     300      224254       0      30     122400        0
          ksiginfo    112     228     816        3032       0     126     116928        0
       malloc-4096   4096      21       7          87       0       2     114688        0
        malloc-384    384     254       6        1355       0      30      99840        0
      malloc-32768  32768       1       2         131       0       1      98304        0
      malloc-32768  32768       1       2           5       0       1      98304        0
      malloc-16384  16384       3       3          23       0       1      98304        0
       malloc-8192   8192      10       2          34       0       1      98304        0
         64 Bucket    512     118      74       51803       0      30      98304        0
            da_ccb    544       0     168       63758       0      16      91392        0
       malloc-8192   8192       9       2         115       0       1      90112        0
       malloc-4096   4096      13       6       24150       0       2      77824        0
     udplite_inpcb    496       2     150        8337       0     254      75392        0
       malloc-8192   8192       4       5          72       0       1      73728        0
       malloc-4096   4096      15       3          93       0       2      73728        0
        malloc-128    128     218     340       25625       0     126      71424        0
      malloc-65536  65536       1       0           1       0       1      65536        0
      malloc-65536  65536       1       0           1       0       1      65536        0
             Files     80     508     292       95659       0     126      64000        0
         32 Bucket    256      90     135       25357       0      62      57600        0
       malloc-8192   8192       1       6          18       0       1      57344        0
         TURNSTILE    136     375      24         375       0      62      54264        0
        malloc-256    256      68     142        3229       0      62      53760        0
       malloc-2048   2048      15      11        1310       0       8      53248        0
zio_data_buf_16384  16384       0       3           9       0       1      49152        0
      malloc-16384  16384       2       1          17       0       1      49152        0
      malloc-16384  16384       1       2         161       0       1      49152        0
       malloc-4096   4096      10       2          28       0       2      49152        0
       malloc-2048   2048       5      19         427       0       8      49152        0
       malloc-2048   2048       2      22         575       0       8      49152        0
            pcpu-8      8    5436     708       20515       0     254      49152        0
         malloc-64     64     610     146        1834       0     254      48384        0
       malloc-1024   1024      10      34        2244       0      16      45056        0
       tcp_bbr_pcb    832      16      38        3753       0      16      44928        0
           DIRHASH   1024      34       6          34       0      16      40960        0
              pipe    744      25      30        1745       0      16      40920        0
         malloc-64     64     259     371       14886       0     254      40320        0
        malloc-256    256     117      33        2055       0      62      38400        0
             NAMEI   1024       0      36      124242       0      16      36864        0
        malloc-512    512       8      64        2574       0      30      36864        0
           pcpu-64     64     492      84         492       0     254      36864        0
         malloc-64     64     287     280      164922       0     254      36288        0
         malloc-32     32     510     624       40793       0     254      36288        0
        malloc-128    128      79     200       23695       0     126      35712        0
        malloc-128    128      99     180       26412       0     126      35712        0
        malloc-128    128      61     218         413       0     126      35712        0
        SLEEPQUEUE     88     375       9         375       0     126      33792        0
     zio_buf_16384  16384       0       2          10       0       1      32768        0
       malloc-8192   8192       1       3           6       0       1      32768        0
         malloc-64     64     124     380      326375       0     254      32256        0
         malloc-64     64     318     186       10137       0     254      32256        0
         16 Bucket    144      81     143        3497       0      62      32256        0
      tcp_rack_pcb    832       2      34        2030       0      16      29952        0
       malloc-2048   2048       8       6         407       0       8      28672        0
      tcp_rack_map    112       4     248        3889       0     126      28224        0
             KNOTE    160      28     147      202319       0      62      28000        0
            itimer    352       0      77         524       0      30      27104        0
        malloc-384    384      60      10          77       0      30      26880        0
       malloc-4096   4096       5       1          12       0       2      24576        0
       malloc-1024   1024       2      22         201       0      16      24576        0
        malloc-512    512       6      42        1237       0      30      24576        0
               PWD     32     144     612       22931       0     254      24192        0
         malloc-64     64     262     116        4244       0     254      24192        0
            ttyinq    160     135      15         300       0      62      24000        0
         udp_inpcb    496       6      42         898       0     254      23808        0
        malloc-128    128     106      80        2416       0     126      23808        0
             unpcb    256      25      65        2576       0     254      23040        0
           ttyoutq    256      72      18         160       0      62      23040        0
        malloc-256    256      29      61        2422       0      62      23040        0
       malloc-2048   2048       2       8        2361       0       8      20480        0
sctp_stream_msg_out    112      77     103        2883       0     254      20160        0
        sctp_laddr     48     138     282       10530       0     254      20160        0
         malloc-32     32     353     277       45213       0     254      20160        0
          2 Bucket     32      86     544        5680       0     254      20160        0
         malloc-16     16     548     702       51377       0     254      20000        0
       Mountpoints   2752       2       5          25       0       4      19264        0
      malloc-16384  16384       1       0           1       0       1      16384        0
      malloc-16384  16384       1       0           1       0       1      16384        0
      malloc-16384  16384       1       0           1       0       1      16384        0
       malloc-8192   8192       2       0           2       0       1      16384        0
       malloc-8192   8192       0       2           9       0       1      16384        0
       malloc-2048   2048       3       5         195       0       8      16384        0
       malloc-1024   1024       8       8         184       0      16      16384        0
       malloc-1024   1024      11       5         345       0      16      16384        0
        malloc-512    512       0      32         365       0      30      16384        0
          rl_entry     40     222     182         227       0     254      16160        0
              ertt     72      38     186        8269       0     126      16128        0
         malloc-32     32      89     415      564222       0     254      16128        0
      vtnet_tx_hdr     24       0     668     1326895       0     254      16032        0
          8 Bucket     80      59     141        6209       0     126      16000        0
             ripcb    496       5      27         860       0     254      15872        0
        malloc-384    384      22      18         388       0      30      15360        0
            cpuset    104      11     113         675       0     126      12896        0
       malloc-1024   1024       8       4          12       0      16      12288        0
        malloc-512    512      12      12         118       0      30      12288        0
        sctp_readq    152       0      78        1107       0     254      11856        0
              kenv    258      15      30        1046       0      30      11610        0
       malloc-8192   8192       1       0           1       0       1       8192        0
       malloc-4096   4096       0       2           5       0       2       8192        0
       malloc-2048   2048       2       2           4       0       8       8192        0
       malloc-1024   1024       1       7         266       0      16       8192        0
        malloc-512    512       0      16         154       0      30       8192        0
        malloc-512    512       7       9           7       0      30       8192        0
        malloc-512    512      10       6          10       0      30       8192        0
           pf tags    104       0      78           5       0     126       8112        0
           rtentry    176      30      16          37       0      62       8096        0
             tcptw     88       1      91          39       0     254       8096        0
              PGRP     88      36      56          81       0     126       8096        0
   sctp_asconf_ack     48       0     168          40       0     254       8064        0
          syncache    168       0      48          26       0     254       8064        0
             udpcb     32       8     244        9235       0     254       8064        0
              AIOP     32       4     248           4       0     254       8064        0
      ktls_session    192      10      32          10       0      62       8064        0
         malloc-64     64      63      63         817       0     254       8064        0
         malloc-32     32     151     101         709       0     254       8064        0
         malloc-32     32      57     195        1258       0     254       8064        0
         malloc-32     32      55     197        1368       0     254       8064        0
         malloc-32     32      17     235         804       0     254       8064        0
          4 Bucket     48       6     162         625       0     254       8064        0
         malloc-16     16       0     500         183       0     254       8000        0
         malloc-16     16      26     474        9438       0     254       8000        0
         malloc-16     16      67     433      548585       0     254       8000        0
         malloc-16     16      40     460        1252       0     254       8000        0
         malloc-16     16     334     166       25494       0     254       8000        0
         malloc-16     16       4     496       13663       0     254       8000        0
               AIO    208       0      38          88       0      62       7904        0
           cryptop    280       0      28         364       0      30       7840        0
             AIOCB    552       0      14         204       0      16       7728        0
     routing nhops    256      27       3          37       0      62       7680        0
        malloc-384    384       0      20          42       0      30       7680        0
        malloc-256    256      13      17        4350       0      62       7680        0
            AIOLIO    272       0      28          37       0      30       7616        0
     FPU_save_area    832       1       8           1       0      16       7488        0
         domainset     40       0     126         544       0     254       5040        0
         abd_chunk   4096       1       0           1       0       2       4096        0
 epoch_record pcpu    256       4      12           4       0      62       4096        0
       malloc-4096   4096       0       1           1       0       2       4096        0
        malloc-512    512       0       8          12       0      30       4096        0
           pcpu-16     16       7     249           7       0     254       4096        0
          tcpreass     48       0      84           1       0     254       4032        0
         hostcache     64       3      60           3       0     254       4032        0
               ipq     56       0      72           1       0     254       4032        0
       UMA Slabs 1    176      11      11          11       0      62       3872        0
        malloc-384    384       2       8           2       0      30       3840        0
        malloc-384    384       1       9           3       0      30       3840        0
            mqnode    416       3       6           3       0      30       3744        0
        KMAP ENTRY     96      18      21          24       0       0       3744        0
              vmem   1856       1       1           1       0       8       3712        0
           SMR CPU     32       3      60           3       0     254       2016        0
        SMR SHARED     24       3      60           3       0     254       1512        0
   zfs_znode_cache    464       0       0           0       0      30          0        0
       sio_cache_2    168       0       0           0       0      62          0        0
       sio_cache_1    152       0       0           0       0      62          0        0
       sio_cache_0    136       0       0           0       0      62          0        0
     zil_zcw_cache     80       0       0           0       0     126          0        0
     zil_lwb_cache    352       0       0           0       0      30          0        0
    dmu_buf_impl_t    408       0       0           0       0      30          0        0
         arc_buf_t     64       0       0           0       0     254          0        0
arc_buf_hdr_t_l2only     96       0       0           0       0     126          0        0
arc_buf_hdr_t_full_crypt    416       0       0           0       0      30          0        0
arc_buf_hdr_t_full    352       0       0           0       0      30          0        0
           dnode_t   1032       0       0           0       0       8          0        0
          sa_cache    296       0       0           0       0      30          0        0
zio_buf_comb_16777216 16777216       0       0           0       0       1          0        0
zio_buf_comb_14680064 14680064       0       0           0       0       1          0        0
zio_buf_comb_12582912 12582912       0       0           0       0       1          0        0
zio_buf_comb_10485760 10485760       0       0           0       0       1          0        0
zio_buf_comb_8388608 8388608       0       0           0       0       1          0        0
zio_buf_comb_7340032 7340032       0       0           0       0       1          0        0
zio_buf_comb_6291456 6291456       0       0           0       0       1          0        0
zio_buf_comb_5242880 5242880       0       0           0       0       1          0        0
zio_buf_comb_4194304 4194304       0       0           0       0       1          0        0
zio_buf_comb_3670016 3670016       0       0           0       0       1          0        0
zio_buf_comb_3145728 3145728       0       0           0       0       1          0        0
zio_buf_comb_2621440 2621440       0       0           0       0       1          0        0
zio_buf_comb_2097152 2097152       0       0           0       0       1          0        0
zio_buf_comb_1835008 1835008       0       0           0       0       1          0        0
zio_buf_comb_1572864 1572864       0       0           0       0       1          0        0
zio_buf_comb_1310720 1310720       0       0           0       0       1          0        0
zio_buf_comb_1048576 1048576       0       0           0       0       1          0        0
zio_buf_comb_917504 917504       0       0           0       0       1          0        0
zio_buf_comb_786432 786432       0       0           0       0       1          0        0
zio_buf_comb_655360 655360       0       0           0       0       1          0        0
zio_buf_comb_524288 524288       0       0           0       0       1          0        0
zio_buf_comb_458752 458752       0       0           0       0       1          0        0
zio_buf_comb_393216 393216       0       0           0       0       1          0        0
zio_buf_comb_327680 327680       0       0           0       0       1          0        0
zio_buf_comb_262144 262144       0       0           0       0       1          0        0
zio_buf_comb_229376 229376       0       0           0       0       1          0        0
zio_buf_comb_196608 196608       0       0           0       0       1          0        0
zio_buf_comb_163840 163840       0       0           0       0       1          0        0
zio_buf_comb_114688 114688       0       0           0       0       1          0        0
zio_buf_comb_98304  98304       0       0           0       0       1          0        0
zio_buf_comb_81920  81920       0       0           0       0       1          0        0
zio_buf_comb_65536  65536       0       0           0       0       1          0        0
zio_buf_comb_57344  57344       0       0           0       0       1          0        0
zio_buf_comb_49152  49152       0       0           0       0       1          0        0
zio_buf_comb_40960  40960       0       0           0       0       1          0        0
zio_buf_comb_32768  32768       0       0           0       0       1          0        0
zio_buf_comb_28672  28672       0       0           0       0       1          0        0
zio_buf_comb_24576  24576       0       0           0       0       1          0        0
zio_buf_comb_20480  20480       0       0           0       0       1          0        0
zio_data_buf_14336  14336       0       0           0       0       1          0        0
     zio_buf_14336  14336       0       0           0       0       1          0        0
zio_data_buf_12288  12288       0       0           0       0       1          0        0
     zio_buf_12288  12288       0       0           0       0       1          0        0
zio_data_buf_10240  10240       0       0           0       0       1          0        0
     zio_buf_10240  10240       0       0           0       0       1          0        0
 zio_data_buf_8192   8192       0       0           0       0       1          0        0
      zio_buf_8192   8192       0       0           0       0       1          0        0
 zio_data_buf_7168   7168       0       0           0       0       1          0        0
      zio_buf_7168   7168       0       0           0       0       1          0        0
 zio_data_buf_6144   6144       0       0           0       0       1          0        0
      zio_buf_6144   6144       0       0           0       0       1          0        0
 zio_data_buf_5120   5120       0       0           0       0       1          0        0
      zio_buf_5120   5120       0       0           0       0       1          0        0
 zio_data_buf_4096   4096       0       0           0       0       2          0        0
      zio_buf_4096   4096       0       0           0       0       2          0        0
 zio_data_buf_3584   3584       0       0           0       0       2          0        0
      zio_buf_3584   3584       0       0           0       0       2          0        0
 zio_data_buf_3072   3072       0       0           0       0       4          0        0
      zio_buf_3072   3072       0       0           0       0       4          0        0
 zio_data_buf_2560   2560       0       0           0       0       4          0        0
      zio_buf_2560   2560       0       0           0       0       4          0        0
 zio_data_buf_2048   2048       0       0           0       0       8          0        0
      zio_buf_2048   2048       0       0           0       0       8          0        0
 zio_data_buf_1536   1536       0       0           0       0       8          0        0
      zio_buf_1536   1536       0       0           0       0       8          0        0
 zio_data_buf_1024   1024       0       0           0       0      16          0        0
      zio_buf_1024   1024       0       0           0       0      16          0        0
  zio_data_buf_512    512       0       0           0       0      30          0        0
       zio_buf_512    512       0       0           0       0      30          0        0
    zio_link_cache     48       0       0           0       0     254          0        0
         zio_cache   1232       0       0           0       0       8          0        0
   ddt_entry_cache    392       0       0           0       0      30          0        0
         ddt_cache  24824       0       0           0       0       1          0        0
metaslab_alloc_trace_cache     72       0       0           0       0     126          0        0
zfs_btree_leaf_cache   4096       0       0           0       0       2          0        0
reference_history_cache      8       0       0           0       0     254          0        0
   reference_cache     40       0       0           0       0     254          0        0
        taskq_zone    192       0       0           0       0      62          0        0
               md3    512       0       0           0       0      30          0        0
               md2    512       0       0           0       0      30          0        0
               md1    512       0       0           0       0      30          0        0
               md0    512       0       0           0       0      30          0        0
           md49036    512       0       0           0       0      30          0        0
       FFS1 dinode    128       0       0           0       0     126          0        0
           ada_ccb    272       0       0           0       0      30          0        0
             swblk    136       0       0           0       0      62          0        0
          swpctrie    144       0       0           0       0      62          0        0
   cdg_qdiffsample     16       0       0           0       0     254          0        0
       sctp_asconf     40       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    312       0       0           0       0       0          0        0
          pf mtags     48       0       0           0       0     254          0        0
      tcp_log_node    120       0       0           0       0     126          0        0
    tcp_log_bucket    176       0       0           0       0      62          0        0
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
    IPsec SA lft_c     16       0       0           0       0     254          0        0
        TMPFS node    224       0       0           0       0      62          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
           NCLNODE    592       0       0           0       0      16          0        0
     LTS VFS Cache    360       0       0           0       0      30          0        0
       L VFS Cache    320       0       0           0       0      30          0        0
     STS VFS Cache    144       0       0           0       0      62          0        0
  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
    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-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
           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 (8):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets Title
ci-freebsd-main 2021/09/19 08:05 freebsd-src d7770a5495b1 70b76c1d console log report panic: Bad link elm ADDR prev->next != elm
ci-freebsd-main 2021/09/14 16:35 freebsd-src e6c19aa94da4 07e953c1 console log report panic: Bad link elm ADDR prev->next != elm
ci-freebsd-main 2021/09/13 09:24 freebsd-src 6fa041d7f125 3ce60af8 console log report panic: Bad link elm ADDR prev->next != elm
ci-freebsd-main 2021/09/13 08:55 freebsd-src 6fa041d7f125 3ce60af8 console log report panic: Bad link elm ADDR prev->next != elm
ci-freebsd-main 2021/09/11 12:00 freebsd-src 71a1ae7cebd3 3ce60af8 console log report panic: Bad link elm ADDR prev->next != elm
ci-freebsd-i386 2021/09/18 04:44 freebsd-src 007c2463d6d0 70b76c1d console log report panic: Bad link elm ADDR prev->next != elm
ci-freebsd-i386 2021/09/17 14:18 freebsd-src ac8af1938085 70b76c1d console log report panic: Bad link elm ADDR prev->next != elm
ci-freebsd-i386 2021/09/07 23:09 freebsd-src 686aa9287c6b 064c9eb7 console log report panic: Bad link elm ADDR prev->next != elm
* Struck through repros no longer work on HEAD.