261843 - trunk builds causing Red Hat 7.x X server to leak memory

Status: RESOLVED WORKSFORME

(Core Graveyard :: GFX: Gtk, defect)

Description

[David Baron :dbaron: (⌚️UTC-4, no longer working on Mozilla)]

Sometime around a month ago there was a regression on the trunk that causes the
X servers on Red Hat 7.2 (and I think 7.1, and maybe others) to leak memory
every time some of the Mozilla tinderbox tests are run.  This is causing
problems with our tinderbox automation since we need to restart some of the
tinderbox's X servers every week or so (at least balsa and costarica, although
I'm not sure that costarica is the same problem).  This may affect other X
servers as well.

I'm not sure which tinderbox test is causing the problem, but probably somebody
is going to need to figure out which one and then binary search builds.

Comment 1

[David Baron :dbaron: (⌚️UTC-4, no longer working on Mozilla)]

(Note that the leaks are happening for both trunk builds on balsa -- a suite
GTK1 build and a Firefox GTK1 build.)

Comment 2

[Boris Zbarsky [:bzbarsky]]

Is there a quick way to detect the memory leak when one runs into it?  I have a
RH 7.2 system....

Comment 3

[David Baron :dbaron: (⌚️UTC-4, no longer working on Mozilla)]

What do you mean by quick?  A cron job I set up to record the amount of memory
the X server was using showed it going up whenever the tinderbox tests ran on
balsa -- but I haven't reduced it to which test or anything like that.

Comment 4

[Boris Zbarsky [:bzbarsky]]

I meant some algorithmic way I could detect the problem when testing a build...
 I guess just start the build and then do stuff and then quit and see whether
the  X server memory usage went up, eh?

Comment 5

[David Baron :dbaron: (⌚️UTC-4, no longer working on Mozilla)]

yep

Comment 6

[Worcester12345]

mlk keyword?

Comment 7

[Mats Palmgren (inactive)]

Does this problem still show up with the current Tinderboxes?

Comment 8

[Boris Zbarsky [:bzbarsky]]

For what it's worth, the FC4 X server also seems to leak during Mozilla usage...

Comment 9

[Zack Weinberg (:zwol)]

I would like to think this is long gone by now?  I've been able to run Firefox for days on end without problems on my own X server, anyway.