On Fri, Oct 08, 2004 at 09:15:48AM +0100, David Greaves wrote: > Branden Robinson wrote: > >If you could provide us with a small program that exercises this bug, it > >would be helpful. [...] > Hi > Thanks for getting back to me. No problem. I try to respond to bug reports and requests for help on the lists as quickly as I can, but there are a lot of them. :) > I did consider filing a bug but several things prevented me: > * I didn't compile X - I just used the debug versions of the library and > dl'ed the src to step through > * The smallest test case I currently have is part of Qt - I later tried > writing a small test that passed the same params to the same call and it > worked fine (grr) Hmmm. I smell gunpowder. > So I thought I'd try and discuss it rather than call it a bug in X when > it could be in any of X, Qt or the application (a plugin to designer - > the Qt IDE) :) > (oh, and it's possible that I have some 'duff' fonts since I've > installed a variety of weird 3rd party ones for use in the Gimp etc) > > Having said this I did decide it was likely to be a bug in X given it > segfaulted when the args passed were clean - it should never do that. I > figured something internal to X had been corrupted (possibly by my fonts) > BTW, I'm not alone in seeing this behaviour - google found me an obscure > report which I think is the exact same thing that dated back to late 2003. > > So - next step? File a bug or discuss it further? (The point of > discussing it first is to help me close in on the problem - eg you may > have a debug routine to dump X's fontcache or something - I wouldn't > have a clue where to start with that kind of thing) > > David > PS FWIW I now work around the problem by never using italic fonts in the > syntax highlighting in the editor - but I'm still up for putting in the > time to help fix the bug. I think it may be the case that Qt is passing a null pointer to Xlib. I recommend filing a bug against libqt3. If the bug is actually in Xlib, it will be reassigned appropriately. -- G. Branden Robinson | Don't use nuclear weapons to Debian GNU/Linux | troubleshoot faults. branden@debian.org | -- US Air Force Instruction 91-111 http://people.debian.org/~branden/ |
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