On Apr 2, 2012, at 3:32 AM, IOhannes m zmoelnig wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > On 2012-03-29 19:03, John Harrison wrote: >> I've been trying to track down a seg fault I keep getting and I'm still >> not sure if the problem is Gem or Pd-extended or what. >> >> This is the latest pd-extended 0.43.1 Beta CVS March 29 (today) running >> on Oneric 32 but. I have simplified my patch to a point it doesn't make >> sense anymore but I can still make it crash, so I figure that's what we >> need. >> >> Basically if you create a new patch then make the object [test99 1], >> then copy and paste that object, then change the 1 parameter to a 2 you >> get a seg fault most of the time. If not, creating a [test99 3] or >> [test99 4] should do it, again most of the time. >> >> It seems related with Gem but I'm not sure if it is a Gem bug. I tried >> the same Gem library with Pd vanilla and it didn't crash. On the other >> hand, it seems related to the [pix_image] object in test99. Also you >> need to have the parameters to get the patch to crash, even though the >> patch doesn't take parameters. (The original patch did take parameters.) >> >> Core dump has only this information: Program terminated with signal 11, >> Segmentation fault. >> #0 0x0111ac01 in gem::RTE::Outlet::send(std::string, >> std::vector<gem::any, std::allocator<gem::any> >) () from >> /usr/lib/pd-extended/extra/Gem/Gem.pd_linux >> > > if i'm not mistaken this has been recently fixed in Gem (around 21st of > march) and is related to threaded loading of images and deleting objects > while the load is still in process. > > to avoid the problem you can do either of those: > - - upgrade to a new version of gem (there's a backport of the fix to the > (stable) 0.93 branch of Gem, though no official release has been made > yet, containing the fix) > - - avoid using threaded loading of images, e.g by sending the [thread 0( > message to [pix_image] before loading images. > - - avoid deleting a [pix_image] that has pending "open" requests
I just committed the latest patches from the 0.93 Gem branch to the Pd-extended 0.43 release branch. They'll be in tomorrow's build. John, could you test this and report back if there are any problems? .hc ---------------------------------------------------------------------------- I hate it when they say, "He gave his life for his country." Nobody gives their life for anything. We steal the lives of these kids. -Admiral Gene LeRocque _______________________________________________ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list