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[Bug 1216522] Re: XMir hung in xf86CrtcSetModeTransform()

To: desktop-packages@xxxxxxxxxxxxxxxxxxx
From: Robert Ancell <robert.ancell@xxxxxxxxxxxxx>
Date: Tue, 09 Jun 2015 04:22:10 -0000
Reply-to: Bug 1216522 <1216522@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

** Changed in: xmir
       Status: Incomplete => Fix Released

** Project changed: xmir => xorg-server (Ubuntu)

** Changed in: xorg-server (Ubuntu)
       Status: Fix Released => Incomplete

** Tags added: xmir

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https://bugs.launchpad.net/bugs/1216522

Title:
  XMir hung in xf86CrtcSetModeTransform()

Status in xorg-server package in Ubuntu:
  Incomplete

Bug description:
  Using the latest ppa:mir-team/qa-testing2 multimonitor was working
  very nicely for a few minutes, but then the X server hung:

  #0  pthread_cond_wait@@GLIBC_2.3.2 ()
      at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
  185	in ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S
  #0  pthread_cond_wait@@GLIBC_2.3.2 ()
      at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
  #1  0x00007f2a1143d1ec in std::condition_variable::wait(std::unique_lock<std::mutex>&) () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
  #2  0x00007f2a12064e6b in MirWaitHandle::wait_for_all() ()
     from /usr/lib/x86_64-linux-gnu/libmirclient.so.2
  #3  0x00007f2a122a0291 in ?? ()
     from /usr/lib/xorg/modules/extensions/libxmir.so
  #4  0x00007f2a15bf17fa in xf86CrtcSetModeTransform ()
  #5  0x00007f2a15bfad26 in ?? ()
  #6  0x00007f2a15c37cba in RRCrtcSet ()
  #7  0x00007f2a15c39108 in ProcRRSetCrtcConfig ()
  #8  0x00007f2a15b7cfce in ?? ()
  #9  0x00007f2a15b6c52a in ?? ()
  #10 0x00007f2a13864de5 in __libc_start_main (main=0x7f2a15b6c160, argc=11,
      ubp_av=0x7fff53642628, init=<optimised out>, fini=<optimised out>,
      rtld_fini=<optimised out>, stack_end=0x7fff53642618) at libc-start.c:260
  #11 0x00007f2a15b6c86f in _start ()

  ii  xserver-common                            2:1.14.2.901-2ubuntu3+xmirMM13                         all          common files used by various X servers
  ii  xserver-xephyr                            2:1.14.2.901-2ubuntu3+xmirMM13                         amd64        nested X server
  ii  xserver-xorg-core                         2:1.14.2.901-2ubuntu3+xmirMM13                         amd64        Xorg X server - core server
  ii  xserver-xorg-video-intel                  2:2.21.14-4ubuntu2+xmirMM6                             amd64        X.Org X server -- Intel i8xx, i9xx display driver
  ii  xserver-xorg-video-nouveau                1:1.0.8-0ubuntu3+xmirMM2                               amd64        X.Org X server -- Nouveau display driver
  ii  xserver-xorg-xmir                         2:1.14.2.901-2ubuntu3+xmirMM13                         amd64        Xorg - the X.Org X server (module for running nested in Mir)

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