** Description changed: + [IMPACT] + Users of ddd, xpdf and some legacy applications not in the archive experience segfaults when attempting certain operations. + + [Test Cases] + Steps to reproduce in xpdf: + (1) open a PDF document in xpdf + (2) right-click on the page for the popup menu to appear + (3) select 'Full screen' to toggle full screen mode + (4) press a key (e.g. Ctrl) + Repeat steps 2 through 4 until a segfault occurs + + Steps to reproduce in ddd: + (1) compile a simple C program (e.g. hello world) with debugging info + (2) run ddd and open the program + (3) right-click over some empty space in the Source Window + for the 'Set Breakpoint' popup menu to appear + (4) right-click over some text in the Source Window + for the 'Print / Display' popup menu to appear + (5) press a key (e.g. Ctrl) + Repeat steps 3 through 5 until a segfault occurs + + [Regression Potential] + Although libxm4 has around 50 reverse dependencies, the fix simply causes Motif to revert to its 2.3.3 behaviour, which has been well tested. + This fix has been in Debian testing and Ubuntu Vivid since April 2015 with no reports of regression. It was also backported to Jessie in August 2015. + + ----------------------------------------------------------------------------- + Trying to step/next through code in a ddd window, ddd segfaults with stack trace: #0 0x00007ffff725a7dd in _XtWindowedAncestor () from /usr/lib/x86_64-linux-gnu/libXt.so.6 #1 0x00007ffff725b0d1 in XtWindowOfObject () from /usr/lib/x86_64-linux-gnu/libXt.so.6 #2 0x00007ffff7aafdd8 in ?? () from /usr/lib/x86_64-linux-gnu/libXm.so.4 #3 0x00007ffff7254499 in XtDispatchEvent () from /usr/lib/x86_64-linux-gnu/libXt.so.6 #4 0x000000000041e63f in ?? () #5 0x00000000004cd6dd in ?? () #6 0x000000000040da6f in ?? () #7 0x00007ffff5eeeec5 in __libc_start_main (main=0x40da50, argc=1, argv=0x7fffffffe5c8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffffffe5b8) at libc-start.c:287 #8 0x0000000000413d95 in ?? () It's segfaulted twice in 15 minutes so it can't be that unlikely. (Disclaimer: I do have an outdated acer BIOS, if that's an issue here) ProblemType: Bug DistroRelease: Ubuntu 14.10 Package: ddd 1:3.3.12-5 ProcVersionSignature: Ubuntu 3.16.0-6.11-generic 3.16.0-rc7 Uname: Linux 3.16.0-6-generic x86_64 ApportVersion: 2.14.5-0ubuntu4 Architecture: amd64 CurrentDesktop: GNOME Date: Sun Aug 10 19:13:34 2014 EcryptfsInUse: Yes InstallationDate: Installed on 2014-07-09 (32 days ago) InstallationMedia: Ubuntu-GNOME 14.10 "Utopic Unicorn" - Alpha amd64 (20140708) SourcePackage: ddd UpgradeStatus: No upgrade log present (probably fresh install)
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1354961 Title: [SRU] Fix for upstream bug #1565 causes segfaults in ddd and xpdf To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ddd/+bug/1354961/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
