unity-2d-panel crashed with SIGSEGV in unity::indicator::DBusIndicators::Impl::RequestSyncAll()

StacktraceTop:
 shared_count (r=<optimized out>, this=<optimized out>) at /usr/include/boost/smart_ptr/detail/shared_count.hpp:223
 shared_ptr<unity::indicator::{anonymous}::SyncData> (this=0x42442e706f746b73, r=...) at /usr/include/boost/smart_ptr/shared_ptr.hpp:238
 construct (__val=..., __p=0x42442e706f746b73, this=<optimized out>) at /usr/include/c++/4.6/ext/new_allocator.h:108
 push_back (__x=..., this=0x253db58) at /usr/include/c++/4.6/bits/stl_vector.h:830
 unity::indicator::DBusIndicators::Impl::RequestSyncAll (this=0x253db40) at /build/buildd/unity-4.20.0/UnityCore/DBusIndicators.cpp:200

In my case it was happened when I press hot key to switch video output very quickly.

Hi Jean-Baptiste, is there ay update here?

Status changed to 'Confirmed' because the bug affects multiple users.

Please help to review the patch and check any side effects. Thanks!

This is a bug with Unity-Core, so adding the Unity project.

Cyrus: thanks for the patch! A Unity team member should get to it soon.

The attachment "10_fixcrash_workaround.patch" of this bug report has been identified as being a patch. The ubuntu-reviewers team has been subscribed to the bug report so that they can review the patch. In the event that this is in fact not a patch you can resolve this situation by removing the tag 'patch' from the bug report and editing the attachment so that it is not flagged as a patch. Additionally, if you are member of the ubuntu-reviewers team please also unsubscribe the team from this bug report.

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Status changed to 'Confirmed' because the bug affects multiple users.

This should be fixed with branch: lp:~3v1n0/unity/dbus-indicators-proxy
Please check it again.

This bug was fixed in the package unity - 5.8.0-0ubuntu1

---------------
unity (5.8.0-0ubuntu1) precise-proposed; urgency=low

  * New upstream release.
    - New "push mouse offscreen" feature really difficult to get (LP: #923749)
    - unity-2d-panel crashed with SIGSEGV in
      unity::indicator::DBusIndicators::Impl::RequestSyncAll() (LP: #864737)
    - Pressing "Alt+Enter" causes compiz to crash in CompOption::value() from
      unity::UnityScreen::showLauncherKeyTerminate (LP: #960957)
    - SEGSIGV after unplugging external monitor (LP: #962693)
    - Background colorization should use a different heuristic (LP: #865239)
    - compiz+unity3d generates > 50 wakeups a second on idle system
      (LP: #917210)
    - [FFe, UIFe] HUD - The HUD does not respect launcher autohide or icon
      size settings (LP: #921506)
    - clicking on folders in the file lens does not open nautilus
      (LP: #921665)
    - No text inside multirange filters (LP: #927710)
    - can't alt-tab restore minimized uis which have an instance on another
      workspace (LP: #933397)
    - Ubuntu Software Center Unity launcher integration is not working
      (LP: #932280)
    - The line separator between the launcher and the dash is cleared when
      selecting a category (LP: #941082)
    - unity-panel-service crashed with SIGSEGV in g_hash_table_foreach()
      (LP: #937119)
    - Alt-F10 locks up Unity (LP: #948522)
    - multimonitor, launcher: Provide an option to display either a single
      launcher or a launcher on each display in a multi-monitor environment
      (LP: #950136)
    - multimonitor: Please give me a way to turn off sticky monitor edges
      (LP: #946104)
    - Unity 5.6: key bindings (such as Super) don't work on empty workspace or
      on slow/loaded systems (LP: #953089)
    - Alt+arrows keyboard shortcuts don't invoke Back and Forward navigation
      (LP: #953783)
    - HUD is sending 2 menu signals instead of 1 (LP: #956878)
    - 6th item of HUD not fully visible (LP: #957229)
    - HUD: seems to trigger operations more than once (LP: #960503)
    - Launcher gets always desaturated when using HUD on secondary monitor
      (LP: #961169)
    - [5.8 pre staging] launcher is displayed on the left screen, not the
      primary one (LP: #961281)
    - launcher icons do not re-saturate after dash is closed (LP: #961844)
    - Launcher shows arrows for applications on all workspaces (LP: #961977)
    - Dash - Implement overlay scrollbars in Dash (LP: #608124)
    - [UIFe] Dash - No message displayed when no results are returned in the
      Dash (LP: #711199)
    - Dash - "See more..." line should be base-aligned with section header
      (LP: #748101)
    - Dash - Missing category separator line in dash (LP: #850984)
    - Dash and Launcher - As soon as a user starts dragging a file from the
      Dash, there is a 'flicker' before the Launcher icons that are valid drop
      receptacles re-saturate (LP: #863230)
    - Dash - When multiple results have equal string match relevancy ranking,
      those with equal ranking should be then sorted by frequency of use.
      (LP: #871900)
    - Keyboard shortcut - F10 shortcut is used to show m...

Marking fixed released to reflect the status in Unity.

Just noticed this is also present in 11.10. Will discuss if we need SRU in the next meeting.

Hi Ubuntu-SRU,

I'd like to target this bug to a Oneiric SRU. Please accept nomination and backport the patch for an SRU.

Hi Marco,

Can we take a newer version of Unity like 5.8 that has the dbus-indicator-proxy patch? Or should we just include the patch that Cyrus wrote?