Mir

intermittent hang in TestClientInput

Bug #1338612 reported by Alan Griffiths
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
Mir
Fix Released
High
Alexandros Frantzis
mir (Ubuntu)
Fix Released
High
Unassigned
mir (Ubuntu RTM)
Fix Released
High
Unassigned

Bug Description

Only see once and not reproduced since. I was testing issues with concurrent tests and so don't have complete information about this occurrence. I have a test instance hung with the call stack:

#0 0x00007fc0ec75d66b in pthread_join (threadid=140466456983296, thread_return=0x0) at pthread_join.c:92
#1 0x00007fc0ebc729e7 in std::thread::join() () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#2 0x00000000006c5f24 in tear_down (this=0x14ace08) at /home/alan/display_server/mir1/tests/acceptance-tests/test_client_input.cpp:101
#3 (anonymous namespace)::TestClientInput::TearDown (this=0x14ac7a0)
    at /home/alan/display_server/mir1/tests/acceptance-tests/test_client_input.cpp:145

It looks like this is teardown from TestClientInput.multiple_clients_receive_motion_inside_windows as I see that start and not finish on the console.

Revision history for this message
Alan Griffiths (alan-griffiths) wrote :

A bit of poking around the instance confirmed which test was hanging but little else. (I'll have a core and the build hanging around for a day or so if there are any ideas what to look for.)

tags: added: testsfail
Revision history for this message
kevin gunn (kgunn72) wrote :

are we still seeing this ?

Changed in mir:
importance: Undecided → High
Revision history for this message
Alexandros Frantzis (afrantzis) wrote :
Changed in mir:
status: New → Fix Committed
assignee: nobody → Alexandros Frantzis (afrantzis)
milestone: none → 0.8.0
summary: - internittent hang in TestClientInput
+ intermittent hang in TestClientInput
tags: added: input
Changed in mir (Ubuntu):
importance: Undecided → High
status: New → Triaged
Robert Carr (robertcarr)
Changed in mir:
status: Fix Committed → Fix Released
Changed in mir (Ubuntu):
status: Triaged → Fix Released
Changed in mir:
status: Fix Released → Fix Committed
Changed in mir (Ubuntu):
status: Fix Released → Triaged
Changed in mir:
status: Fix Committed → Fix Released
Changed in mir (Ubuntu RTM):
importance: Undecided → High
status: New → Triaged
Revision history for this message
Launchpad Janitor (janitor) wrote :
Download full text (5.5 KiB)

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_mo...

Read more...

Changed in mir (Ubuntu):
status: Triaged → Fix Released
Revision history for this message
Launchpad Janitor (janitor) wrote :
Download full text (5.4 KiB)

This bug was fixed in the package mir - 0.8.0+14.10.20141005-0ubuntu1

---------------
mir (0.8.0+14.10.20141005-0ubuntu1) 14.09; 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_mot...

Read more...

Changed in mir (Ubuntu RTM):
status: Triaged → Fix Released
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