[Bug 255473] Infinite writes on UFS with SU+J filesystem

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=255473

--- Comment #13 from Jack <xxjack12xx at gmail.com> ---
It's doing the infinite writes again
13.0-STABLE FreeBSD 13.0-STABLE #0 stable/13-n245485-dec9f377531d

    1  13805      0      0    0.0  13805 441756    0.1  100.0| ada0
    1  13805      0      0    0.0  13805 441756    0.1  100.0| ada1
    1  13805      0      0    0.0  13805 441756    0.1  100.0| ada0p2
    1  13805      0      0    0.0  13805 441756    0.1  100.0| ada1p2
    1  13805      0      0    0.0  13805 441756    0.1  100.0| mirror/root1

The command I issued immediately before was
cd /usr/ports;git pull;portupgrade -ua

It's been stuck at

[Reading data from pkg(8) ... - 1088 packages found - done]

for the past 2 hours and everything i type results in a hang.

top shows

 1113 dhcpd         1  24    0    21M  2956K biowr    1  12:51   8.50% dhcpd
50445 root          1  23    0   117M    38M getblk   5  17:50   6.66% ruby27
50776 root          1  22    0    13M  2552K getblk   3   5:09   5.24% sh
50693 root          1  22    0   141M  8316K ufs      2   5:02   4.21% smbd
50783 root          1  22    0   141M  8316K ufs      7   3:27   4.17% smbd
49660 root          1  22    0   141M  8280K RUN      7  46:09   4.16% smbd
50724 root          1  22    0   141M  8316K ufs      5   4:32   3.96% smbd
50884 root          1  22    0   141M  8320K ufs      3   1:22   3.95% smbd
50817 root          1  22    0   141M  8320K ufs      2   2:40   3.94% smbd
50789 root          1  22    0   141M  8316K biowr    6   3:24   3.91% smbd
50532 root          1  21    0   141M  8316K ufs      2   9:06   3.83% smbd
50725 root          1  22    0   141M  8316K ufs      1   4:32   3.83% smbd
50888 root          1  22    0   141M  8324K ufs      5   1:19   3.82% smbd
50711 root          1  21    0   141M  8316K ufs      6   4:41   3.80% smbd
50786 root          1  21    0   141M  8316K ufs      2   3:24   3.79% smbd
50885 root          1  21    0   141M  8320K ufs      5   1:20   3.78% smbd
49659 root          1  21    0    46M  5648K RUN      6  46:17   3.76% nmbd
50887 root          1  22    0   141M  8324K biowr    4   1:19   3.73% smbd
49658 root          1  21    0    54M  7480K CPU2     2  46:17   3.73% winbindd
50889 root          1  21    0   141M  8324K ufs      3   1:17   3.71% smbd
50784 root          1  21    0   141M  8316K ufs      7   3:27   3.64% smbd
50886 root          1  21    0   141M  8320K ufs      4   1:20   3.63% smbd
50818 root          1  21    0   141M  8320K ufs      4   2:39   3.58% smbd
50533 root          1  21    0   141M  8316K ufs      7   9:07   3.57% smbd

Only way to recover is to power cycle the machine as reboot also hangs.

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