Topic on Project:Support desk

Hello,

I have upgraded to MediaWiki 1.39.7 with the following components:

I have been getting errors from the web browser such as "The connection was reset" when I try to edit and save pages with somewhat long titles (about 30 characters). Note that the titles are in the Greek alphabet, so I do not know if this plays a role regarding the size of character encoding. From what I read online, the maximum size for a page title is 255 bytes.

Also sometimes when saving is successful, I get lines of the form "<<<<<<< /private/var/tmp/merge-old-6jssyq" incorporated into the page's contents.

Note that I did not have problems of this sort with older versions of MediaWiki (or MySQL). I also do not have any problems with pages that have shorter page titles.

Any help on the matter is appreciated.

Thank you in advance.

> I get lines of the form "<<<<<<< /private/var/tmp/merge-old-6jssyq" incorporated into the page's contents

This sounds like you have a git merge conflict in a file of your mediawiki installation.

Thank you @TheDJ

Could you explain how git is involved in this error please? Aren't characters "<<<<<<<<" and ">>>>>>>>" used more widely and not only in git?

Btw, this type of lines appears in the source of a wiki page, when I am editing a section of the page.

merge-old is what was triggering me. That is the prefix for the filenames that git uses when encountering two conflicting versions.

Greek characters are 2 bytes each. 30 character greek title = 60 bytes. So its probably not a length issue.

It could also be something going wrong with edit conflict merging which also uses diff3 (and uses the merge-old-xxxxx convention), but i've never heard that happening before. See also manual:$wgDiff3

Can you check your php error log.

Thank you. I checked /var/log/apache2/error.log

and I get

[Thu Jul 11 08:52:19.418457 2024] [core:notice] [pid 137] AH00052: child pid 21546 exit signal Segmentation fault (11)

[Thu Jul 11 08:52:19.418818 2024] [core:notice] [pid 137] AH00052: child pid 21052 exit signal Segmentation fault (11)

Also I have the following values in LocalSettings.php

## Shared memory settings

$wgMainCacheType    = CACHE_NONE;

$wgMemCachedServers = array();

Thank you in advance.

Debugging php segfaults can be pretty difficult if you arent familiar with php internals. Normally i suggest updating your version of php to see if that helps.

Thank you. Shall I update to PHP 8.1?

Its worth a shot.