On 2023-09-27 11:08, Dmitry Katsubo wrote:
After upgrading Squid from v4.13-10+deb11u2 (bullseye) to v5.7-2
(bookworm) I started to get about 5 core dumps per day like below.
How can I find out the root of the problem and eliminate it?
On 27.09.23 13:15, Alex Rousskov wrote:
Your Squid is most likely suffering (among other v5 bugs) from Squid Bug
5154: https://bugs.squid-cache.org/show_bug.cgi?id=5154
There is currently no fix for that bug (that I can recommend without
serious caveats). There has been significant progress towards a fix,
but it may have stalled at
https://github.com/squid-cache/squid/pull/1421
The best known way to prevent bug 5154 is to enable IPv6 support, but
that is not feasible in many environments.
Another Squid admin has reported success with an unofficial (and
probably incomplete) workaround at https://lists.squid-cache.org/pipermail/squid-users/2023-September/026103.html
from the mail:
acl urldst_ipv6 url_regex ^http://\[
http_access deny urldst_ipv6
I believe it should be replaced by dstdom_regex.
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