[Bug 1393105] Re: GNUbg crashes shortly after starting game
Unsubscribing ubuntu-sponsors as there is no actionable item. Once an updated debdiff is posted, please subscribe ubuntu-sponsors again. Thanks. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1393105 Title: GNUbg crashes shortly after starting game To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnubg/+bug/1393105/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1393105] Re: GNUbg crashes shortly after starting game
** Changed in: gnubg (Ubuntu) Importance: Undecided => High ** Changed in: gnubg (Ubuntu Trusty) Status: Confirmed => Triaged -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1393105 Title: GNUbg crashes shortly after starting game To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnubg/+bug/1393105/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1393105] Re: GNUbg crashes shortly after starting game
** Changed in: gnubg (Ubuntu Utopic) Status: Triaged = Won't Fix -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1393105 Title: GNUbg crashes shortly after starting game To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnubg/+bug/1393105/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1393105] Re: GNUbg crashes shortly after starting game
** Changed in: gnubg (Ubuntu Trusty) Status: Fix Committed = Confirmed ** Changed in: gnubg (Ubuntu Trusty) Assignee: Brian Murray (brian-murray) = (unassigned) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1393105 Title: GNUbg crashes shortly after starting game To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnubg/+bug/1393105/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1393105] Re: GNUbg crashes shortly after starting game
I experience the bug on Elementary OS Freya. How can I fix this? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1393105 Title: GNUbg crashes shortly after starting game To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnubg/+bug/1393105/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1393105] Re: GNUbg crashes shortly after starting game
** Tags removed: verification-needed ** Tags added: verification-failed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1393105 Title: GNUbg crashes shortly after starting game To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnubg/+bug/1393105/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1393105] Re: GNUbg crashes shortly after starting game
As an addendum, it manifests itself differently in Trusty. The application is usable, although it could in theory be unstable with multiple threads under the right conditions. It doesn't crash outright. In Utopic the problem is fatal as it will crash right as you start playing which in effect renders the product unusable on that platform. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1393105 Title: GNUbg crashes shortly after starting game To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnubg/+bug/1393105/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1393105] Re: GNUbg crashes shortly after starting game
Hello Michael, or anyone else affected, Accepted gnubg into trusty-proposed. The package will build now and be available at http://launchpad.net/ubuntu/+source/gnubg/1.02.000-2ubuntu1 in a few hours, and then in the -proposed repository. Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users. If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested, and change the tag from verification-needed to verification-done. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed. In either case, details of your testing will help us make a better decision. Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance! ** Changed in: gnubg (Ubuntu Trusty) Status: In Progress = Fix Committed ** Tags added: verification-needed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1393105 Title: GNUbg crashes shortly after starting game To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnubg/+bug/1393105/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1393105] Re: GNUbg crashes shortly after starting game
Was Utopic going to be fixed as well? Thanks -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1393105 Title: GNUbg crashes shortly after starting game To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnubg/+bug/1393105/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1393105] Re: GNUbg crashes shortly after starting game
I originally identified the problem in Utopic, so I would hope it would be fixed there too. AT least that was my wish. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1393105 Title: GNUbg crashes shortly after starting game To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnubg/+bug/1393105/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1393105] Re: GNUbg crashes shortly after starting game
Once it builds in trusty-proposed the plan is to copy the package to utopic-proposed. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1393105 Title: GNUbg crashes shortly after starting game To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnubg/+bug/1393105/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1393105] Re: GNUbg crashes shortly after starting game
If I manually apply the patch to the original source and do a build it works. I noticed when I did the Ubuntu build from source that the patch didn't seem to get properly applied and the code it built was essentially the unmodified code (not patched). The only thing I see wrong was the patch had some fuzz in one of the hunks. Not sure if that is related to the issue or not. If I get a chance tomorrow I'll regenerate a new patch. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1393105 Title: GNUbg crashes shortly after starting game To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnubg/+bug/1393105/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1393105] Re: GNUbg crashes shortly after starting game
I spent some time today playing with 1.02.000-2ubuntu1 AMD64 playing against the computer and doing rollouts and analysis. The latter two are processor and thread intensive. I didn't observe any problems that would be related to this fix. I happened to copy the gnubg and gnubg-data files to my utopic system. When I ran it and started a new match it crashed and I saw this: GNU Backgammon 1.02.000 Feb 11 2015 Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004 by Gary Wong. Copyright (C) 2013 by Gary Wong and the AUTHORS; for details type `show version'. This program comes with ABSOLUTELY NO WARRANTY; for details type `show warranty'. This is free software, and you are welcome to redistribute it under certain conditions; type `show copying' for details. (No game) set gui showids on (No game) save settings (No game) new match Attempt to unlock mutex that was not locked Aborted (core dumped) The date is clearly correct (Feb 11 2015) but it failed. I then downloaded the source tar ball, the debian.tar.xz and the dsc file. I then built the packaged from source with: dpkg-source -x gnubg_1.02.000-2ubuntu1.dsc and then dpkg-buildpackage -rfakeroot -b Running this release failed as well. I'm going to have to revisit the patch and see if something was missed (in the patch) or if there is some other environment related problem (library change/update etc). At the time (a few months ago) it did work as expected and I had thoroughly tested it. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1393105 Title: GNUbg crashes shortly after starting game To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnubg/+bug/1393105/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1393105] Re: GNUbg crashes shortly after starting game
I've uploaded this to the Trusty queue for review by the SRU team. ** Changed in: gnubg (Ubuntu Trusty) Status: New = In Progress ** Changed in: gnubg (Ubuntu Trusty) Assignee: (unassigned) = Brian Murray (brian-murray) ** Changed in: gnubg (Ubuntu Trusty) Importance: Undecided = High ** Changed in: gnubg (Ubuntu Utopic) Status: New = Triaged ** Changed in: gnubg (Ubuntu Utopic) Importance: Undecided = High -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1393105 Title: GNUbg crashes shortly after starting game To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnubg/+bug/1393105/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1393105] Re: GNUbg crashes shortly after starting game
** Description changed: [Preamble] I am one of the primary upstream maintainers of the GNUbg project. [Impact] When a user starts a new match GNUbg will crash with this error (on the console): Attempt to unlock mutex that was not locked Aborted (core dumped) This issue is a regression that appeared in Ubuntu 14.10 . It wasn't an issue in Ubuntu 14.04. This bug should be a high priority for this application because this bug renders the software completely unusable. [Test Case] - To reproduce launch GNUbg and click the New icon to start a new match. Click Ok on the match parameters screen (no need to modify the settings). The match should start. You may need to hit Control-R to roll to roll the dice (alternatively click the middle of the board on the right side). Shortly after doing so the application will close down. + To reproduce launch GNUbg and click the New icon to start a new match. Click Ok on the match parameters screen (no need to modify the settings). The match should start. You may need to hit Control-R to roll the dice (alternatively click the middle of the board on the right side). Shortly after doing so the application will close down. [Regression Potential] The patch/bug fix attached to this report should be reasonably low risk and should not impact other software on the users system. Most regressions that may result from any new problems that could be introduced are that the analysis output may be slightly different. Upstream official software releases (1.03.000 and 1.04.000) have been using the fixes in this patch for a few months without any reported issues and as a result are considered well tested by the upstream maintainers. [Bug cause] - New versions of Glib have extra assertions that may reveal hidden bugs. This happened with GNUbg. The problem highlighted issues in how we were using mutexes (creations/usage/cleanup). Older versions of Glib didn't have these newer assertions so the problem had gone undetected in previous releases. + New versions of Glib (= 2.41.2) have extra assertions that may reveal hidden bugs. The Glib changes highlighted problems in how we were using mutexes (creations/usage/cleanup). Older versions of Glib didn't have these newer assertions so the problem had gone undetected in previous releases although the bug is present but may invoke undefined behaviour. [Bug history] - The set of changes in this patch were applied to the upstream version of GNUbg in July 2014 based upon a bug report of a user that was using a PPA version of Glib in Ubuntu 14.04. That bug and further information about the nature of this issue can be found here: https://bugs.launchpad.net/ubuntu/+source/gnubg/+bug/1346567 + The set of changes in this patch were applied to the upstream version of GNUbg in July 2014 based upon a bug report of a user that was using a PPA version of Glib in Ubuntu 14.04. That bug and further information about the nature of this issue can be found here: https://bugs.launchpad.net/ubuntu/+source/gnubg/+bug/1346567 . Russ Allbery the Debian maintainer closed that bug off as fixed by landing it in + Vivid Vervet (15.04) by releasing version 1.03.001-1 . - There was a report of this bug shortly after 14.10 was release but for - some inexplicable reason it was deleted from launchpad. + There was a user report of this bug shortly after 14.10 was release but + for some inexplicable reason it was deleted from launchpad. ProblemType: Bug DistroRelease: Ubuntu 14.10 Package: gnubg 1.02.000-2 ProcVersionSignature: Ubuntu 3.16.0-24.32-generic 3.16.4 Uname: Linux 3.16.0-24-generic x86_64 ApportVersion: 2.14.7-0ubuntu8 Architecture: amd64 CurrentDesktop: Unity Date: Sat Nov 15 17:08:35 2014 InstallationDate: Installed on 2014-10-24 (22 days ago) InstallationMedia: Ubuntu 14.10 Utopic Unicorn - Release amd64 (20141022.1) ProcEnviron: LANGUAGE=en_CA:en PATH=(custom, no user) XDG_RUNTIME_DIR=set LANG=en_CA.UTF-8 SHELL=/bin/bash SourcePackage: gnubg 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/1393105 Title: GNUbg crashes shortly after starting game To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnubg/+bug/1393105/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1393105] Re: GNUbg crashes shortly after starting game
Based on the description, looks like this should be SRUed to both trusty and utopic, despite utopic being the only one with a glibc that exposes the bug. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1393105 Title: GNUbg crashes shortly after starting game To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnubg/+bug/1393105/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1393105] Re: GNUbg crashes shortly after starting game
Based on the description, looks like this should be SRUed to both trusty and utopic, despite utopic being the only one with a glib that exposes the bug. ** Also affects: gnubg (Ubuntu Utopic) Importance: Undecided Status: New ** Also affects: gnubg (Ubuntu Trusty) Importance: Undecided Status: New ** Changed in: gnubg (Ubuntu) Status: New = Fix Released -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1393105 Title: GNUbg crashes shortly after starting game To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnubg/+bug/1393105/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1393105] Re: GNUbg crashes shortly after starting game
Updated patch (debdiff) to resolve this bug. Updated changelog entry. Original patch didn't include a bug fix to a global variable (shared among threads) that was being optimized away leading to instabilities in the software. ** Patch removed: patch to fix glib bugs (debdiff) https://bugs.launchpad.net/ubuntu/+source/gnubg/+bug/1393105/+attachment/4261561/+files/gnubg_1.02.000.diff ** Patch added: Patch (debdiff) to resolve this bug https://bugs.launchpad.net/ubuntu/+source/gnubg/+bug/1393105/+attachment/4261906/+files/gnubg_1.02.000.diff -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1393105 Title: GNUbg crashes shortly after starting game To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnubg/+bug/1393105/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1393105] Re: GNUbg crashes shortly after starting game
Given the following facts: 1) The package is at the same version in both trusty and utopic 2) The bug can only be reproduced on utopic, but obviously exists in both I propose the following unorthodox SRU procedure: 1) The SRU is uploaded to trusty-proposed, so it builds with trusty level deps 2) The SRU is copied from trusty-proposed to utopic-proposed 3) The SRU is validated in utopic, where the bug can be properly reproduced and verified fixed 4) The SRU is released to both trusty-updates and utopic-updates Since we'll be validating the identical binary, this should prevent us from having to validate on trusty, except to smoketest that it runs and doesn't appear to crash, -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1393105 Title: GNUbg crashes shortly after starting game To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnubg/+bug/1393105/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1393105] Re: GNUbg crashes shortly after starting game
Yes Adam, I concur that this issue is on both Trusty and Utopic thanks for amending the bug. I happened to update my original post earlier while you were commenting and suggested that on other versions with older Glib the issue is present but still invoking undefined behavior. So Trusty in my opinion is potentially unstable albeit with no known crash. This issue with the mutexes hasn't existed for the entire lifetime of our project. This issue was introduced in May 2013 in preparation for our official v1.00.000 release. In particular this set of changes: http://cvs.savannah.gnu.org/viewvc/gnubg/multithread.c?root=gnubgr1=1.74r2=1.75sortby=date The change was to accommodate some structural changes and avoid deprecated functionality in Glib = 2.32.0. Unfortunately this issue slipped through the cracks. As a result, any official Ubuntu releases that used a version of GNUbg 1.0 will not experience this problem (Which is any Ubuntu release before Trusty). That leaves only the GNUbg releases used in Trusty and Utopic as candidates for this change. I don't have commit privileges so need sponsorship on this bug. My understanding of the process is a bit lacking so you will have to bear with me. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1393105 Title: GNUbg crashes shortly after starting game To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnubg/+bug/1393105/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1393105] Re: GNUbg crashes shortly after starting game
** Patch removed: Patch (debdiff) to resolve this bug https://bugs.launchpad.net/ubuntu/utopic/+source/gnubg/+bug/1393105/+attachment/4261906/+files/gnubg_1.02.000.diff ** Patch added: Patch (debdiff) to resolve this bug https://bugs.launchpad.net/ubuntu/utopic/+source/gnubg/+bug/1393105/+attachment/4262106/+files/gnubg_1.02.000.diff -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1393105 Title: GNUbg crashes shortly after starting game To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnubg/+bug/1393105/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1393105] Re: GNUbg crashes shortly after starting game
I am the primary upstream maintainer for GNUbg. Attached is a patch to fix this bug. This patch is a small subset of the changes that went into GNUbg 1.03.000. to deal with this bug and two other fatal problems These changes were related to issues with improper mutex creation/usage/cleanup as well as a couple instability fixes and were brought about because of changes in newer versions of glib. These fixes are also available if one were to upgrade Ubuntu to use GNUbg 1.03.000 or 1.04.000. ** Patch added: patch to fix glib bugs https://bugs.launchpad.net/ubuntu/+source/gnubg/+bug/1393105/+attachment/4261561/+files/gnubg_1.02.000.diff -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1393105 Title: GNUbg crashes shortly after starting game To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnubg/+bug/1393105/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1393105] Re: GNUbg crashes shortly after starting game
** Description changed: - When run GNUbg will crash with the error (on the console): + [Preamble] + I am one of the primary maintainers of the GNUbg project. - Attempt to unlock mutex that was not locked - Aborted (core dumped) + [Impact] + When a user starts a new match GNUbg will crash with this error (on the console): + + Attempt to unlock mutex that was not locked + Aborted (core dumped) This issue is a regression that appeared in Ubuntu 14.10 . It wasn't an - issue in Ubuntu 14.04. + issue in Ubuntu 14.04. This bug should be a high priority for this + application because this bug renders the software completely unusable. - To reproduce launch GNUbg and click the New icon to start a new match. - Click Ok on the match parameters screen (no need to modify the - settings). The match should start. You may need to hit Control-R to roll - to roll the dice (alternatively click the middle of the board on the - right side). Shortly after doing so the application will close down. + [Test Case] + To reproduce launch GNUbg and click the New icon to start a new match. Click Ok on the match parameters screen (no need to modify the settings). The match should start. You may need to hit Control-R to roll to roll the dice (alternatively click the middle of the board on the right side). Shortly after doing so the application will close down. - This bug is high priority for this application because it renders the - software unusable. + [Regression Potential] + The patch/bug fix attached to this report should be reasonably low risk and should not impact other software on the users system. Most regressions that may result from any new problems that could be introduced are that the analysis output may be slightly different. + + Upstream official software releases (1.03.000 and 1.04.000) have been + using the fixes in this patch for a few months without any reported + issues and as a result are considered well tested by the upstream + maintainers. + + [Bug cause] + New versions of Glib have extra assertions that may reveal hidden bugs. This happened with GNUbg. The problem highlighted issues in how we were using mutexes (creations/usage/cleanup). Older versions of Glib didn't have these newer assertions so the problem had gone undetected in previous releases. + + [Bug history] + The set of changes in this patch were applied to the upstream version of GNUbg in July 2014 based upon a bug report of a user that was using a PPA version of Glib in Ubuntu 14.04. That bug and further information about the nature of this issue can be found here: https://bugs.launchpad.net/ubuntu/+source/gnubg/+bug/1346567 + + There was a report of this bug shortly after 14.10 was release but for + some inexplicable reason it was deleted from launchpad. + ProblemType: Bug DistroRelease: Ubuntu 14.10 Package: gnubg 1.02.000-2 ProcVersionSignature: Ubuntu 3.16.0-24.32-generic 3.16.4 Uname: Linux 3.16.0-24-generic x86_64 ApportVersion: 2.14.7-0ubuntu8 Architecture: amd64 CurrentDesktop: Unity Date: Sat Nov 15 17:08:35 2014 InstallationDate: Installed on 2014-10-24 (22 days ago) InstallationMedia: Ubuntu 14.10 Utopic Unicorn - Release amd64 (20141022.1) ProcEnviron: - LANGUAGE=en_CA:en - PATH=(custom, no user) - XDG_RUNTIME_DIR=set - LANG=en_CA.UTF-8 - SHELL=/bin/bash + LANGUAGE=en_CA:en + PATH=(custom, no user) + XDG_RUNTIME_DIR=set + LANG=en_CA.UTF-8 + SHELL=/bin/bash SourcePackage: gnubg UpgradeStatus: No upgrade log present (probably fresh install) ** Description changed: [Preamble] - I am one of the primary maintainers of the GNUbg project. + I am one of the primary upstream maintainers of the GNUbg project. [Impact] When a user starts a new match GNUbg will crash with this error (on the console): Attempt to unlock mutex that was not locked Aborted (core dumped) This issue is a regression that appeared in Ubuntu 14.10 . It wasn't an issue in Ubuntu 14.04. This bug should be a high priority for this application because this bug renders the software completely unusable. [Test Case] To reproduce launch GNUbg and click the New icon to start a new match. Click Ok on the match parameters screen (no need to modify the settings). The match should start. You may need to hit Control-R to roll to roll the dice (alternatively click the middle of the board on the right side). Shortly after doing so the application will close down. [Regression Potential] - The patch/bug fix attached to this report should be reasonably low risk and should not impact other software on the users system. Most regressions that may result from any new problems that could be introduced are that the analysis output may be slightly different. + The patch/bug fix attached to this report should be reasonably low risk and should not impact other software on the users system. Most regressions that may result from any new problems that could
[Bug 1393105] Re: GNUbg crashes shortly after starting game
The attachment patch to fix glib bugs seems to be a debdiff. The ubuntu-sponsors team has been subscribed to the bug report so that they can review and hopefully sponsor the debdiff. If the attachment isn't a patch, please remove the patch flag from the attachment, remove the patch tag, and if you are member of the ~ubuntu-sponsors, unsubscribe the team. [This is an automated message performed by a Launchpad user owned by ~brian-murray, for any issue please contact him.] ** Tags added: patch -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1393105 Title: GNUbg crashes shortly after starting game To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnubg/+bug/1393105/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
