[Bug 66955] Running the game "FTL" causes the Xserver to crash inside the r600 dri code - bugzilla-daemon

From: bugzilla-daemon@freedesktop.org
To: dri-devel@lists.freedesktop.org
Subject: [Bug 66955] Running the game "FTL" causes the Xserver to crash inside the r600 dri code
Date: Tue, 16 Jul 2013 10:25:43 +0000	[thread overview]
Message-ID: <bug-66955-502-UjyE0GOZXp@http.bugs.freedesktop.org/> (raw)
In-Reply-To: <bug-66955-502@http.bugs.freedesktop.org/>

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https://bugs.freedesktop.org/show_bug.cgi?id=66955

--- Comment #1 from Phil Armstrong <phil@kantaka.co.uk> ---
Turns out the real problem is that FTL bundles a version of libstdc++ that the
DRI drivers won't link against.

It looks like the net result is that *no* DRI drivers (not even swrast) can be
loaded, and the Xserver dies when trying to invoke the first GLX call.

Here's the output of the program with LIBGL_DEBUG=verbose :

$ cat libgl_debug-output2.txt 
libGL: OpenDriver: trying /usr/lib/x86_64-linux-gnu/dri/tls/r600_dri.so
libGL: OpenDriver: trying /usr/lib/x86_64-linux-gnu/dri/r600_dri.so
libGL error: dlopen /usr/lib/x86_64-linux-gnu/dri/r600_dri.so failed
(/home/phil/games/FTL/data/amd64/lib/libstdc++.so.6: version `GLIBCXX_3.4.15'
not found (required by /usr/lib/x86_64-linux-gnu/libLLVM-3.2.so.1))
libGL: OpenDriver: trying ${ORIGIN}/dri/tls/r600_dri.so
libGL: OpenDriver: trying ${ORIGIN}/dri/r600_dri.so
libGL error: dlopen ${ORIGIN}/dri/r600_dri.so failed
(/home/phil/games/FTL/data/amd64/lib/libstdc++.so.6: version `GLIBCXX_3.4.15'
not found (required by /usr/lib/x86_64-linux-gnu/libLLVM-3.2.so.1))
libGL: OpenDriver: trying /usr/lib/dri/tls/r600_dri.so
libGL: OpenDriver: trying /usr/lib/dri/r600_dri.so
libGL error: dlopen /usr/lib/dri/r600_dri.so failed (/usr/lib/dri/r600_dri.so:
cannot open shared object file: No such file or directory)
libGL error: unable to load driver: r600_dri.so
libGL error: driver pointer missing
libGL error: failed to load driver: r600
libGL: OpenDriver: trying /usr/lib/x86_64-linux-gnu/dri/tls/swrast_dri.so
libGL: OpenDriver: trying /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
libGL error: dlopen /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so failed
(/home/phil/games/FTL/data/amd64/lib/libstdc++.so.6: version `GLIBCXX_3.4.15'
not found (required by /usr/lib/x86_64-linux-gnu/libLLVM-3.2.so.1))
libGL: OpenDriver: trying ${ORIGIN}/dri/tls/swrast_dri.so
libGL: OpenDriver: trying ${ORIGIN}/dri/swrast_dri.so
libGL error: dlopen ${ORIGIN}/dri/swrast_dri.so failed
(/home/phil/games/FTL/data/amd64/lib/libstdc++.so.6: version `GLIBCXX_3.4.15'
not found (required by /usr/lib/x86_64-linux-gnu/libLLVM-3.2.so.1))
libGL: OpenDriver: trying /usr/lib/dri/tls/swrast_dri.so
libGL: OpenDriver: trying /usr/lib/dri/swrast_dri.so
libGL error: dlopen /usr/lib/dri/swrast_dri.so failed
(/usr/lib/dri/swrast_dri.so: cannot open shared object file: No such file or
directory)
libGL error: unable to load driver: swrast_dri.so
libGL error: failed to load driver: swrast
XIO:  fatal IO error 11 (Resource temporarily unavailable) on X server ":3"
      after 10305 requests (10305 known processed) with 0 events remaining.

If I remove the bundled libstdc++.so & use the system one then everything works
as expected.

Obviously this is still an Xorg crash bug though: the server ought not to crash
if a userspace program fails to load a glx driver!

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