On 10 Jul 2020, at 22:29, Kristof Provost wrote:
On 8 Jul 2020, at 12:52, Kajetan Staszkiewicz wrote:
I have forgot to mention my system: it's FreeBSD 11.3-RELEASE-p9
I have also managed to replicate this (or a similar) issue on a test
system built with lock debugging and I got this:
Jul 8 10:32:07 hwlb-aw-01 kernel: lock order reversal:
Jul 8 10:32:07 hwlb-aw-01 kernel: 1st 0xffffffff81850760 pf rulesets
(pf rulesets) @
/usr/home/kajetan.staszkiewicz/freebsd.git/sys/netpfil/pf/pf.c:6006
Jul 8 10:32:07 hwlb-aw-01 kernel: 2nd 0xfffff8011f7028a8 tcpinp
(tcpinp) @
/usr/home/kajetan.staszkiewicz/freebsd.git/sys/netinet/in_pcb.c:1994
This lock order reversal is almost certainly the reason for the
deadlock you report in your previous e-mail.
The problem relates to the UID filtering functionality, so not using
that feature will avoid the deadlock.
I believe I’ve seen previous reports about issues in this area as
well.
I’ll try to put this on my short-sh term todo list, but I can’t
promise anything. Free time is exceptionally rare these days.
I can’t seem to reproduce the LOR (or the deadlock).
Can you share a minimal ruleset that triggers this problem?
Thanks,
Kristof
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