On Tue, 28 Jun 2011 at 2:39:51 +0200, Tamas TEVESZ wrote: > > i might have whined about this in the past. situation is, under > certain circumstances (which always involves high (io) load), wm goes > into a deadlock on my xinerama setup running on ubuntu 10.04 with the > symptom of the mouse pointer oscillating between the two xinerama > heads, and not much else happening. > > now i think i found the culprit, which is way outside wm, and is > rather in xcb, specifically this bug: > > https://bugs.freedesktop.org/show_bug.cgi?id=27368 > http://lists.freedesktop.org/archives/xcb/2010-March/005818.html > > with the patch mentioned (but cleverly not by any means made readily > identifiable, good work, mate) in the bug report applied to the ubuntu > libxcb, i'm stressing the whole shebang for almost an hour now under > considerable (for a desktop) load, and it still hasn't deadlocked > once. > > this is not a conclusive observation, as the thing is pretty hard to > trigger at will, so only time will tell, but so far things looks quite > promising. > > the patch in question is > http://cgit.freedesktop.org/xcb/libxcb/patch/?id=b0525e242368fffbc77ebb45293f34e80847e65a > > dunno if it applies to anything else (in fact, don't know if anyone > beside me has ever experienced this, but whatever), but here it is > anyway.
Thanks a lot for reporting this. I've never experienced any deadlock with wm so far, but it is good to know about this issue with xcb just in case. -- To unsubscribe, send mail to [email protected].
