[Mesa-dev] [Bug 66955] Substituting an older libstdc++ when running a GL program causes a segfault in the Xserver.

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Wed Jul 17 10:35:11 PDT 2013


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

Ian Romanick <idr at freedesktop.org> changed:

           What    |Removed                     |Added
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                 CC|                            |cworth at cworth.org,
                   |                            |idr at freedesktop.org

--- Comment #10 from Ian Romanick <idr at freedesktop.org> ---
Is the libstdc++ that the Xserver sees replaced?  If the server is picking up
the wrong libstdc++... yeah, don't do that.  You wouldn't replace parts of your
car engine with random parts from a different model, would you? :)

If the driver loaded by the server is still using the correct system libstdc++,
it should work fine.  Two things to try:

1. Try running the app with LIBGL_ALWAYS_INDIRECT=y.  Does it still crash the
server?

2. Try collecting an apitrace of the application.  You'll probably have to run
it via ssh or from the console.  Otherwise everything will be forcibly killed
when the server dies, and you won't get a trace.  It might be sketchy any way. 
Does replaying the trace on an unmangled system still crash the server?

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