Bugzilla DB error displaying PR25331

[Hans-Peter Nilsson <hp@bitrange.com>]

After finally fixing this bug, i.e.
https://sourceware.org/bugzilla/show_bug.cgi?id=25331 I was
adding a few final words and changing the status to
resolved/fixed, but got a message about bugzilla being edited:
"overwrite, throw away, or add just your new comment"
(inaccurate quote but I hope you get what's referred).

I choose "add just your new comment" and was greeted by a page
with a request to send this report and a big red error message
that starts as follows:

"undef error - DBD::mysql::st execute failed: Out of
resources when opening file '/var/tmp/#sql_f6f0_0.MAI'
(Errcode: 24 "Too many open files") [for Statement "SELECT
DISTINCT groups.id, name, description, CASE WHEN
bug_group_map.group_id IS NOT NULL THEN 1 ELSE 0 END, CASE WHEN
groups.id IN(8,7) THEN 1 ELSE 0 END, isactive, membercontrol,
othercontrol FROM groups LEFT JOIN bug_group_map ON
bug_group_map.group_id = groups.id AND bug_id = ? LEFT JOIN
group_control_map ON group_control_map.group_id = groups.id AND
group_control_map.product_id = ? WHERE isbuggroup = 1 ORDER BY
description" with ParamValues: 0=25331, 1=4] at Bugzilla/Bug.pm
line 3869"

...and that you probably see just by visiting PR25331 (as I did
on another machine).  If not, I printed to a PDF, to be sent on
request.

Sorry.

brgds, H-P