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[Bug 1506358] Re: libmirclient gives up and exits prematurely with "std::exception::what: disconnected: no new buffers" via ExchangeSemantics::submit()

To: desktop-packages@xxxxxxxxxxxxxxxxxxx
From: Daniel van Vugt <daniel.van.vugt@xxxxxxxxxxxxx>
Date: Wed, 28 Oct 2015 10:05:40 -0000
Reply-to: Bug 1506358 <1506358@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

** Changed in: xorg-server (Ubuntu)
   Importance: Undecided => High

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https://bugs.launchpad.net/bugs/1506358

Title:
  libmirclient gives up and exits prematurely with
  "std::exception::what: disconnected: no new buffers" via
  ExchangeSemantics::submit()

Status in Mir:
  New
Status in mir package in Ubuntu:
  New
Status in xorg-server package in Ubuntu:
  New

Bug description:
  Under heavy resizing (stress testing under Valgrind), my Mir client
  (Xmir) crashed with:

  [1444895332.392862] <ERROR> MirBufferStreamAPI: Caught exception at client library boundary (in mir_buffer_stream_swap_buffers): /build/mir-7io2Aj/mir-0.16.0+15.10.20150921.1/src/client/buffer_stream.cpp(169): Throw in function virtual MirWaitHandle* {anonymous}::ExchangeSemantics::submit(const std::function<void()>&, mir::geometry::Size, MirPixelFormat, int)
  Dynamic exception type: boost::exception_detail::clone_impl<boost::exception_detail::error_info_injector<std::runtime_error> >
  std::exception::what: disconnected: no new buffers

  The strange thing is it's only the client that died. The server
  survived and I can connect new clients to it.

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