Please do not reply directly to this email. All additional comments should be made in the comments box of this bug report. Summary: Segfault occurs when using Perl-Tk on FC6 https://bugzilla.redhat.com/show_bug.cgi?id=235666 ------- Additional Comments From andreas.bierfert@xxxxxxxxxxxxx 2008-01-04 17:27 EST ------- I have been debugging this the whole evening and on the way adding sort of the same patch. This does prevent it from crashing in a couple of occasions but so harder you can still trigger a crash because eventually optionPtr->specPtr->type is broken (or better specPtr contains crap). I currently believe that this is related to what is mentioned in tkGlue.c:2269: " /* BEWARE if Tk code does a callback to perl and perl grows the stack then args that Tk code has will still point at old stack. Thus if Tk tests args[i] *after* the callback it will get junk. (Note it is only vector that is at risk, SVs themselves will stay put.) So we pre-emptively swap perl stack so any callbacks which grow their stack don't move our "args" */ " because there stuff gets called but values for args make sense: e.g. right before a crash: args: 0x7c59c8, args[2]: 0x96D010 I am really clueless atm. -- Configure bugmail: https://bugzilla.redhat.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is. -- Fedora Extras Perl SIG http://www.fedoraproject.org/wiki/Extras/SIGs/Perl Fedora-perl-devel-list mailing list Fedora-perl-devel-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/fedora-perl-devel-list
