Red Hat Bugzilla – Bug 220739
pbmtog3 seg faults
Last modified: 2013-07-02 19:19:09 EDT
Description of problem: The pbmtog3 program in RPM netpbm-progs-10.35-6.fc6 for x86_64 seg faults with almost any PBM image file I try. The version from the RPM for FC4 x86_64 works OK. The one in netpbm-progs-10.35-6.fc6 for i386 works OK. It seems to be a 64 bit specific fault introduced in recent versions.
Could you please attach a testing pbm image here?
Created attachment 144350 [details] A sample PBM file Any old PBM FAX will cause the problem, which is why I didn't attach a test case. Still, here is an arbitrary PBM FAX file, and like every other PBM FAX file, it causes FC6's pbmtog3 for x86_64 to segfault.
The algorithm used in the pbmtog3 is broken and needs to be fixed upstream. It works just fine in case that the sizeof(wordint) == 4, but fails on any 64bit platform because sizeof(wordint) == 8. The segfault is caused by index underflow, where pbmtog3 tries to index milepost[n-1] even though n is zero... This needs to be fixed upstream as well. I added a fix for segfault for now, another fix will be needed to make pbmtog3 actually work on 64bit arches to produce sane output...
It's fixed in 10.35.32. Update is comming soon.
netpbm-10.35.32-1.fc7 has been pushed to the Fedora 7 testing repository. If problems still persist, please make note of it in this bug report. If you want to test the update, you can install it with su -c 'yum --enablerepo=updates-testing update netpbm'
netpbm-10.35.32-1.fc7 has been pushed to the Fedora 7 stable repository. If problems still persist, please make note of it in this bug report.
A new bug has been introduced by this change. ID FEDORA-2007-731 Type bugfix Status final Issued 2007-11-05 09:29:24.63 Updated 2007-11-05 09:29:24.63 Bugs 220739 337181 There is a new conflict with the man pages. When installing via rmp, the following error message is seen: [('file /usr/share/man/man1/index.1.gz from install of netpbm-progs-10.35.32-1.fc6 conflicts with file from package html-xml-utils-3.7-4.fc6', (7, '/usr/share/man/man1/index.1.gz', 0L))]
It seems there are more conflicts caused by html-xml-utils: # yum install html-xml-utils ... Transaction Check Error: file /usr/bin/extract from install of html-xml-utils-3.7-4.fc6 conflicts with file from package csound-5.03.0-13.fc7 file /usr/share/man/man1/index.1.gz from install of html-xml-utils-3.7-4.fc6 conflicts with file from package netpbm-progs-10.35.32-1.fc7 I presume the .fc6 prefix reveals that the html-xml-utils was not build for a long time. We should make the conflicts clear with the html-xml-utils maintainer first. Not sure it's actually a fault of netpbm.
csound has issues with some other packages too. The csound maintainers have work to do. But the conflict with index is with netpbm because netpbm doesn't have an index executable or man page. html-xml-utils owns the index command.
Ok, I removed man pages from the latest netpbm-progs that lacks the corresponding binaries in rawhide.
html-xml-utils conflicts are known for a long time: bug 208781
netpbm-10.35.32-2.fc8 has been pushed to the Fedora 8 stable repository. If problems still persist, please make note of it in this bug report.
Can the fix be published to the f6 trees as well?
Ron, the update to netpbm-10.35.32-1.fc6 submitted on 2007-10-18 is in the queue. I'm not of the exact time when it will be pushed.
I now have x86_64 FC8 installed, with netpbm-10.35.32-2 The update to that revision, by yum, was odd, as it left the previous netpbm-10.35-17 RPMs on my machine. I've removed those, and cleaned up, and I'm sure I am now using netpbm-10.35.32-2. When I try the original test, pbmtog3 no longer seg faults. It seems to get stuck in an endless loop, producing output forever. The test file I originally posted displays this problem. x86_64 still looks pretty broken.