Bug#267786: Qt's QImage::save() segfault's sometimes with libc6-i686

[GOTO Masanori <gotom@debian.or.jp>]

severity 267786 normal
thanks

At Tue, 24 Aug 2004 14:48:54 +0200,
Dirk Schmidt wrote:
> I wrote a little program that converts 2 dimensional arrays into PNG-
> images using Qt3 and the GNU Scientific Library. When using it on
> 2.6 kernel with libc6-i686 it sometimes segfaults without any obvious
> reason. You can find the sources an example data on 
> <http://www.kis.uni-freiburg.de/~dirk/libc6-i686-bug/>.
> Just compile it with 'make -f Makefile.sic' and run
> 'run/sic --inverse -d diffX.dat -i diffX.dat.png -w 128 \
> -h 128 --adjust --highres'
> and 
> 'run/sic --inverse -d ncompX.dat -i ncompX.dat.png -w 128 \
>  -h 128 --adjust --highres'
> and see how the first one crashes. Note, that it doesn't crash on
> 2.4.26 which is not using libc6-i686.
> How ever, I am not 100% sure whether this bug not is related to the
> Qt binaries?

If you are unsure what the problem is, then please make small sample
program to make sure the problem.  We're not debug service for you.
BTW, "valgrind" says there's invalid read.

Regards,
-- gotom