I got that random crash in some apps too, and I can confirm the Guard Malloc behavior. The workaround for me was to delay the setup of the QCLayer to some time after the window is on screen, instead of having it in the awakeFromNib / or similar. (but I don't think it solves everything)
Raphael On Thu, Dec 24, 2009 at 4:49 AM, Jon Steinmetz <[email protected]> wrote: > On Dec 23, 2009, at 7:24 PM, vade wrote: > > > Hrm. That crash is in Open Emu a project ive helped out on. My > understanding is we squashed that bug in our App, but I dont recall the > specifics of how or when. You can take a peek at our sources for our CA > layer which is here, maybe you can see anything with regard to creating or > handling the CGLPixel Format and or Context that may differ? > > > > > http://openemu.svn.sourceforge.net/viewvc/openemu/OpenEmu/OEGameLayer.m?view=markup > > > > I can see if anyone is still getting that crash. I recall it was only one > dev/user who saw it during testing. It may be a specific to a machine or > driver? Hope this is somewhat helpful :\ > > Cool, I will take a look at the changes to see if anything might apply to > my situation. As to the machine, it does not appear to be the case, see > below. > > > > On Dec 23, 2009, at 7:32 PM, Christopher Wright wrote: > > > Just to chime in with a tiny bit of "me too" action -- we've had a few > reproducible problems similar to this (but not identical -- not quite pixel > formats, but colorspaces, iirc) in a couple of our projects on the (old) ATI > X1600 -- the posted pastebin crash was on an nvidia 8600 (doesn't apply), > but the in-email backtrace didn't indicate what hardware it was actually on. > Unlikely to be the same problem (as the X1600's a couple years old, and > somewhat scarce now), but perhaps something along similar lines? > > I have many reported bugs and so I took a look at analyzing them to see if > there was similar hardware in common, it did not appear to be the case. I > was seeing many different video cards both ATI and NVIDIA. > > > Another thing to note is that this seems to be sporadic. The one user I > talked to said they were not having the problem anymore and I would assume > that if this was always crashing for certain users I would be hearing some > complaints. So far no one has complained but they have kindly submitted the > crash reports. > > Aha! by enabling Guard Malloc I can get a slightly similar crash every > time. This feels like the same issue. This will take some time to track down > but at there is now a reproducible case. I will report back when I figure > this out or find a workaround. > > Thanks everyone and have a happy holidays. > _______________________________________________ > Do not post admin requests to the list. They will be ignored. > Quartzcomposer-dev mailing list ([email protected]) > Help/Unsubscribe/Update your Subscription: > > http://lists.apple.com/mailman/options/quartzcomposer-dev/raphael.sebbe%40gmail.com > > This email sent to [email protected] > -- Raphael Sebbe Creaceed — Creative iPhone & Mac apps ••• Twitter: http://twitter.com/rsebbe ••• Web: http://www.creaceed.com
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