[Bug 1339700] Re: Device locks randomly on welcome screen
** Changed in: unity8 (Ubuntu) Status: New = Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1339700 Title: Device locks randomly on welcome screen To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unity8/+bug/1339700/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1339700] Re: Device locks randomly on welcome screen
I had this today on #119 on mako. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1339700 Title: Device locks randomly on welcome screen To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unity8/+bug/1339700/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1339700] Re: Device locks randomly on welcome screen
A bit more info: - apps can't be launched (hang at startup) - can't call (display powers up, no sound or notification) - I couldn't connect from gdb (A program is being debugged already. Kill it? (y or n)) - unity8 consumes some CPU (but not a lot, like 14%) - SIGTERM didn't help - SIGSEGV didn't result in a .crash file :| -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1339700 Title: Device locks randomly on welcome screen To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unity8/+bug/1339700/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1339700] Re: Device locks randomly on welcome screen
** Attachment added: gdb.txt https://bugs.launchpad.net/ubuntu/+source/unity8/+bug/1339700/+attachment/4148820/+files/gdb.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1339700 Title: Device locks randomly on welcome screen To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unity8/+bug/1339700/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1339700] Re: Device locks randomly on welcome screen
This has been happening to me, more importantly though, when a fix does go in I would like to see an automated test go in along with it. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1339700 Title: Device locks randomly on welcome screen To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unity8/+bug/1339700/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1339700] Re: Device locks randomly on welcome screen
More symbols from mzanetti: http://paste.ubuntu.com/7771898/ -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1339700 Title: Device locks randomly on welcome screen To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unity8/+bug/1339700/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1339700] Re: Device locks randomly on welcome screen
Suspicious things from the above (chicken'n'egg possible): Thread 33: __invokemir::scene::SnapshottingFunctor Should only be called occasionally, if this locked up, would suggest something in app screenshotting? Thread 31: SessionAuthorizer::requestAuthorizationForSession This one should usually only be called on session startup, definitely not when stuff's locked up... Thread 7: waitmir::frontend::Surface::swap_buffers_blocking Should this be there at all? Wonder if this means rendering didn't resume from suspend? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1339700 Title: Device locks randomly on welcome screen To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unity8/+bug/1339700/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1339700] Re: Device locks randomly on welcome screen
This is the most I could get out of it: http://paste.ubuntu.com/7772064 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1339700 Title: Device locks randomly on welcome screen To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unity8/+bug/1339700/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1339700] Re: Device locks randomly on welcome screen
My trace out of manta: http://paste.ubuntu.com/7772239/ -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1339700 Title: Device locks randomly on welcome screen To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unity8/+bug/1339700/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1339700] Re: Device locks randomly on welcome screen
Yeah it's a deadlock in mir, specifically between the compositor Thread and the main loop: The TimeoutFrameDroppingPolicy has timedout, so it owns the internal alarm mutex and attemps to drop a frame, so it waits for the BufferQueue mutex. The compositor thread is releasing a buffer, so it calls BufferQeueue::compositor_release, which owns the BufferQueue mutex and attempts to update the TimeoutFrameDroppingPolicy (since a buffer is being freed) but it waits to own the internal alarm mutex so deadlock. ** Also affects: mir Importance: Undecided Status: New ** Changed in: mir Importance: Undecided = High ** Changed in: mir Status: New = Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1339700 Title: Device locks randomly on welcome screen To manage notifications about this bug go to: https://bugs.launchpad.net/mir/+bug/1339700/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1339700] Re: Device locks randomly on welcome screen
** Changed in: unity8 (Ubuntu) Status: Confirmed = Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1339700 Title: Device locks randomly on welcome screen To manage notifications about this bug go to: https://bugs.launchpad.net/mir/+bug/1339700/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1339700] Re: Device locks randomly on welcome screen
** Changed in: mir Assignee: (unassigned) = Alberto Aguirre (albaguirre) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1339700 Title: Device locks randomly on welcome screen To manage notifications about this bug go to: https://bugs.launchpad.net/mir/+bug/1339700/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1339700] Re: Device locks randomly on welcome screen
** Changed in: mir Status: Confirmed = In Progress -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1339700 Title: Device locks randomly on welcome screen To manage notifications about this bug go to: https://bugs.launchpad.net/mir/+bug/1339700/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1339700] Re: Device locks randomly on welcome screen
** Branch linked: lp:~mir-team/mir/fix-1339700-in-0.4 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1339700 Title: Device locks randomly on welcome screen To manage notifications about this bug go to: https://bugs.launchpad.net/mir/+bug/1339700/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1339700] Re: Device locks randomly on welcome screen
** Branch linked: lp:~mir-team/mir/fix-1339700 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1339700 Title: Device locks randomly on welcome screen To manage notifications about this bug go to: https://bugs.launchpad.net/mir/+bug/1339700/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1339700] Re: Device locks randomly on welcome screen
** Changed in: mir Milestone: None = 0.5.0 ** Also affects: mir/0.4 Importance: Undecided Status: New ** Changed in: mir/0.4 Status: New = In Progress ** Changed in: mir/0.4 Importance: Undecided = High ** Changed in: mir/0.4 Assignee: (unassigned) = Alberto Aguirre (albaguirre) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1339700 Title: Device locks randomly on welcome screen To manage notifications about this bug go to: https://bugs.launchpad.net/mir/+bug/1339700/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1339700] Re: Device locks randomly on welcome screen
The two relevant commits appeared in Mir 0.3.0 and then 0.4.0: revno: 1725 [merge] committer: Alan Griffiths a...@octopull.co.uk branch nick: development-branch timestamp: Thu 2014-06-26 17:06:24 +0100 message: server: Avoid race condition in AlarmImpl ... revno: 1675 [merge] author: Alberto Aguirre alberto.agui...@canonical.com committer: Tarmac branch nick: development-branch timestamp: Tue 2014-06-03 17:49:45 + message: Allow buffer swapping even when compositor is turned off or blocked. Fixes: https://bugs.launchpad.net/bugs/1308843, https://bugs.launchpad.net/bugs/1308844. Approved by PS Jenkins bot, Chris Halse Rogers, Kevin DuBois, Alexandros Frantzis. ** Summary changed: - Device locks randomly on welcome screen + [regression] Device locks randomly on welcome screen ** Tags added: regression -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1339700 Title: [regression] Device locks randomly on welcome screen To manage notifications about this bug go to: https://bugs.launchpad.net/mir/+bug/1339700/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
