Sat 08 May 2010 03:57:08 AM UTC, comment #6:
I think this may be an X server bug:
Recall:
Build latest SVN on Ubuntu Lucid: Problem repros
Build latest SVN on Fedora 10: Problem does not repro
I just tested:
Copy ddd binary from Fedora 10 to Ubuntu Lucid: Problem repros
Copy all libraries listed by "ldd ddd" on F10 to Lucid and use LD_LIBRARY_PATH to run the F10 ddd and libraries on Lucid: Problem repros. (note: I skipped copying libc, libgcc_s, libdl, libm, ld-linux.so; it's fairly unlikely those are the cause)
The above all implies there's some environmental condition on Ubuntu Lucid, outside the code being executed, that causes the problem.
Finally, I used "ssh -Y" from the Lucid machine to the F10 machine, and ran ddd on F10 displaying on Lucid's display using ssh X forwarding. The problem repro's here.
The most obvious thing that's common in all those repro steps (especially the last one) is the X server itself.
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