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[Bug 1371619] Re: [regression] mir demo servers segfault on shutdown

 

This bug was fixed in the package mir - 0.8.0+14.10.20141010-0ubuntu1

---------------
mir (0.8.0+14.10.20141010-0ubuntu1) utopic; urgency=medium

  [ Daniel van Vugt ]
  * New upstream release 0.8.0 (https://launchpad.net/mir/+milestone/0.8.0)
    - Enhancements:
      . Less sensitivity to ABI breaks - many headers unused by external
        projects are now hidden and not installed by -dev packaes. If you
        require any headers that are missing, just ask.
      . Touchspots: --enable-touchspots to servers; visually shows touch
        locations (warning: This affects performance LP: #1373692).
      . Client performance reporting: Any Mir client can now get accurate
        performance information (frame rate, render time, buffer lag etc)
        logged to stdout. Just set env MIR_CLIENT_PERF_REPORT=log
      . Further improved touch responsiveness, with less lag and smoother
        scrolling (so long as you don't enable touchspots).
      . Slightly faster builds using precompiled headers.
      . Turn hardware overlays on by default. When in use, this halves the
        CPU usage of a Mir server. Already enabled in unity-system-compositor.
      . More scripting to detect ABI breaks.
      . Improved src/ tree consistency (renamed "src/shared" to "src/common").
      . Improved fatal signal design: Changed from SIGTERM to SIGHUP delivered
        to clients on unexpected server disconnection.
      . Improved library/package design to allow concurrent installations
        of different Mir versions without conflicts.
      . Fd reception code is now common to client and server.
    - ABI summary: Servers need rebuilding, but clients do not;
      . Mirclient ABI unchanged at 8
      . Mircommon ABI bumped to 2
      . Mirplatform ABI bumped to 3
      . Mirserver ABI bumped to 26
    - API changes between Mir 0.7 and 0.8:
      . Lots of headers removed from the public SDK! We have only hidden
        headers not known to be used by any known projects. Please let us
        know if anything is missing - https://bugs.launchpad.net/mir/+filebug
      . graphics::Platform - interface changed significantly.
      . Lots of server API changes to support touchspots.
      . File descriptors now passed as type Fd instead of int32_t.
    - Bug fixes:
      . [regression] Mir deb packages with versioned names cannot be installed
        simultaneously any more (LP: #1293944)
      . A frozen client can hang the whole server (LP: #1350207)
      . QtMir FTBFS: fatal error: mir/input/input_channel.h: No such file or
        directory (LP: #1365934)
      . [regression] platform-api fails to build against Mir 0.8 (LP: #1368354)
      . Mir FTBFS with gcc 4.9.1-14 (utopic update):
        auto_unblock_thread.h:44:46: error: no matching function for call to
        ‘std::thread::thread(<brace-enclosed initializer list>)’ (LP: #1369389)
      . [regression] Compositing is jerky and stutters during touch events
        (LP: #1372850)
      . unit test fails: AndroidInputReceiverSetup.slow_raw_input_doesnt_cause_
        frameskipping (LP: #1373826)
      . intermittent hang in TestClientInput (LP: #1338612)
      . TestClientInput.scene_obscure_motion_events_by_stacking fails
        intermittently (LP: #1361757)
      . [regression] First frame is composited as black (even though the client
        has provided a non-black frame) (LP: #1362444)
      . Some mali drivers crash after repeatedly creating/destroying the mir
        compositor threads (LP: #1362841)
      . [android] SIGTERM to server with connected client causes crash
        (LP: #1364637)
      . [regression] acceptance tests fails in
        ServerDisconnect.causes_client_to_terminate_by_default (LP: #1364772)
      . [regression] symbol lookup error:
        /usr/lib/arm-linux-gnueabihf/libmirserver.so.24: undefined symbol:
        _ZTIN7android7RefBaseE (libmirserver 0.6.1 doesn't work with
        libmircommon 0.7.0) (LP: #1364890)
      . [regression] Mir FTBFS with g++-4.8 [error: ISO C++ forbids casting
        between pointer-to-function and pointer-to-object] (LP: #1366134)
      . Intermittent CI failure in DemoPrivateProtobuf.client_calls_server
        (LP: #1367353)
      . Overly strict libmirplatform* dependencies are blocking CI
        (LP: #1370866)
      . [regression] mir demo servers segfault on shutdown (LP: #1371619)
      . Nested server crashes with SIGSEGV on shutdown in eglDestroyContext()
        (LP: #1372276)
      . [regression] Moving/resizing clients in a nested server is very
        jerky/stuttery (LP: #1372300)
      . [regression] Bypass/overlays are toggling constantly (LP: #1373689)
      . [regression] Mir server uses too much CPU during touch scrolling
        (LP: #1373809)
      . Intermittent test failures in TestClientCursorAPI.* (LP: #1342567)
      . clang emits lots of warnings about lttng headers (LP: #1348472)
      . [enhancement] Draw input event location (LP: #1323522)
      . demo shell: Keep colours consistent, regardless of the physical pixel
        format of your framebuffer (LP: #1375660)
      . tests: Fix SharedLibraryProber test runs on i386. (LP: #1375829)
      . Touchspots rendered as squares on some devices (LP: #1373698)
      . The headers needed to use features shown in the acceptance tests are
        not published (LP: #1375301)
      . update-all-ABI-sha1sums.sh and install_on_android.sh are no longer
        executable. (LP: #1376547)
      . Fix arm64 package by adding arm64 to the shared library prober test.
        (LP: #1379478)
 -- Ubuntu daily release <ps-jenkins@xxxxxxxxxxxxxxxxxxx>   Fri, 10 Oct 2014 14:01:26 +0000

** Changed in: mir (Ubuntu)
       Status: Invalid => Fix Released

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https://bugs.launchpad.net/bugs/1371619

Title:
  [regression] mir demo servers segfault on shutdown

Status in Mir:
  Fix Released
Status in “mir” package in Ubuntu:
  Fix Released

Bug description:
  the mir_demo_servers have started segfaulting once they are sent sigterm. The backtrace isn't very useful.
  This seems to be caused by change 1924 (the touchspot change), and seems to do with the changes to the way gralloc is accessed.

  This only affects 'stable device' so it seems like its in the same
  ballpark as: #1370555

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