[Bug 1526209] Re: [regression] Clients of nested Mir servers silently crash/exit instantly

Note the root cause of the problem is possibly bug 1526658 (soon to be Fix Released in Mir 0.19.0) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1526209 Title: [regression] Clients of nested Mir

[Bug 1526209] Re: [regression] Clients of nested Mir servers silently crash/exit instantly

Fix Released in Mir 0.18.0. Although it's good to mention this bug got different fixes between the 0.18 and 0.19 branches, it's probably still best to only mention it in the changelog for one of them. ** Changed in: mir Status: Fix Committed => Fix Released ** Changed in: mir

[Bug 1526209] Re: [regression] Clients of nested Mir servers silently crash/exit instantly

** Changed in: mir Status: Fix Released => Fix Committed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1526209 Title: [regression] Clients of nested Mir servers silently crash/exit

[Bug 1526209] Re: [regression] Clients of nested Mir servers silently crash/exit instantly

** Changed in: mir/0.18 Status: Fix Committed => Fix Released ** Changed in: mir Status: Fix Committed => 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/1526209 Title:

[Bug 1526209] Re: [regression] Clients of nested Mir servers silently crash/exit instantly

Wrt to the segmentation fault more details in https://bugs.launchpad.net/mir/+bug/1526658 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1526209 Title: [regression] Clients of nested Mir servers

[Bug 1526209] Re: [regression] Clients of nested Mir servers silently crash/exit instantly

Missing information to aid reproducing: 1. Are you running from a terminal, a VT or a ssh session? 1.1. AFAICS the commands as given in the instructions can only work from a terminal session, but Mir-on-X doesn't *need* "sudo", so what happens without "sudo"? 2. Are you running a local build?

[Bug 1526209] Re: [regression] Clients of nested Mir servers silently crash/exit instantly

Yes i can also remember seeing that stacktrace when toying around with our reload hack, to get mesa to find our symbols during egl display detection. But I dont get that anymore on xenial with lp:mir or lp:mir/0.18 -- You received this bug notification because you are a member of Ubuntu Bugs,

[Bug 1526209] Re: [regression] Clients of nested Mir servers silently crash/exit instantly

So my problem noted in #8 was just a mis-match of packages on my system. Cannot reproduce with xenial + silo 021, nor with on-system builds of lp:mir, lp:mir/0.18, or lp:mir/0.17. After standup today, it seems like we weren't able to reproduce the problem, provided that we had updated systems,

[Bug 1526209] Re: [regression] Clients of nested Mir servers silently crash/exit instantly

I could not reproduce on xenial. Both mir-on-x and mesa worked for me. Note that there is a known issue with the nested server not being able to detect the platform (lp:1515558) so a '--vt' switch is needed on the server for correct behaviour. -- You received this bug notification because you

[Bug 1526209] Re: [regression] Clients of nested Mir servers silently crash/exit instantly

Haven't been able to confirm this specific scenario today, but another issue (not a crash, rather incorrect platform loading) was noticed related to rev 3098. Seems best to back out that rev for lp:mir and lp:mir/0.18 release. -- You received this bug notification because you are a member of

[Bug 1526209] Re: [regression] Clients of nested Mir servers silently crash/exit instantly

Connecting a software client to the affected nested server actually made the nested server crash: ERROR: /home/dan/bzr/mir/fixmirout/src/gl/recently_used_cache.cpp(44): Throw in function virtual std::shared_ptr mir::gl::RecentlyUsedCache::load(const mir::graphics::Renderable&) Dynamic exception

[Bug 1526209] Re: [regression] Clients of nested Mir servers silently crash/exit instantly

Annoyingly bisection is going to be slow, because of a separate regression - bug 1526225. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1526209 Title: [regression] Clients of nested Mir servers

[Bug 1526209] Re: [regression] Clients of nested Mir servers silently crash/exit instantly

seems to be mesa-specific -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1526209 Title: [regression] Clients of nested Mir servers silently crash/exit instantly To manage notifications about this

[Bug 1526209] Re: [regression] Clients of nested Mir servers silently crash/exit instantly

Confirmed, reverting r3098 fixes the problem. ** Tags added: nested -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1526209 Title: [regression] Clients of nested Mir servers silently crash/exit

[Bug 1526209] Re: [regression] Clients of nested Mir servers silently crash/exit instantly

Bisected. The problem originated in: revno: 3098 [merge] author: Cemil Azizoglu committer: Tarmac branch nick: development-branch timestamp: Tue 2015-11-10 23:10:22 + message: Tighten probing rules.

[Bug 1526209] Re: [regression] Clients of nested Mir servers silently crash/exit instantly

I swear I've also seen Mir 0.17.1 fail similarly (Unity8 on xenial desktop). I might be imagining things, or I might have been seeing some side-effect of bug 1506707 that perhaps also led to similar problems?... -- You received this bug notification because you are a member of Ubuntu Bugs, which

[Bug 1526209] Re: [regression] Clients of nested Mir servers silently crash/exit instantly

** Branch linked: lp:~mir-team/mir/revert-3098 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1526209 Title: [regression] Clients of nested Mir servers silently crash/exit instantly To manage

[Bug 1526209] Re: [regression] Clients of nested Mir servers silently crash/exit instantly

hmm, and now after doing a reinstall and upgrade of all packages (on xenial), I can no longer reproduce the issue. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1526209 Title: [regression] Clients

[Bug 1526209] Re: [regression] Clients of nested Mir servers silently crash/exit instantly

** Changed in: mir Status: Incomplete => In Progress ** Changed in: mir Assignee: (unassigned) => Mir development team (mir-team) ** Changed in: mir/0.18 Status: Incomplete => Triaged ** Changed in: mir (Ubuntu) Status: Incomplete => Invalid -- You received this bug

[Bug 1526209] Re: [regression] Clients of nested Mir servers silently crash/exit instantly

I also can see the nested server crash scenario when connecting mir_demo_client_egltriangle. I haven't seen the client crash yet -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1526209 Title:

[Bug 1526209] Re: [regression] Clients of nested Mir servers silently crash/exit instantly

Can't reproduce on wily -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1526209 Title: [regression] Clients of nested Mir servers silently crash/exit instantly To manage notifications about this

[Bug 1526209] Re: [regression] Clients of nested Mir servers silently crash/exit instantly

duflu, could you also try 1. with the '--vt' option ? 2. on another machine with a different GPU? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1526209 Title: [regression] Clients of nested Mir

[Bug 1526209] Re: [regression] Clients of nested Mir servers silently crash/exit instantly

Fix committed into lp:mir at revision 3198, scheduled for release in mir, milestone 0.19.0 ** Changed in: mir Status: In Progress => Fix Committed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu.

[Bug 1526209] Re: [regression] Clients of nested Mir servers silently crash/exit instantly

Fix committed to lp:mir/0.18 at revision 3182, scheduled for release in Mir 0.18.0 ** Changed in: mir/0.18 Status: Triaged => Fix Committed ** Changed in: mir/0.18 Assignee: (unassigned) => Mir development team (mir-team) -- You received this bug notification because you are a

[Bug 1526209] Re: [regression] Clients of nested Mir servers silently crash/exit instantly

Please clarify how to reproduce: If run from a terminal window we don't need any of the "sudo's" as we simply load up the Mir-on-X stack and connect via $DISPLAY. In any case, sudo should only be require for the host mir server when using kms (--arw-file will make the endpoint accessible to all).