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bug#6075: Lucid trunk build crashes at start
From: |
Stefan Monnier |
Subject: |
bug#6075: Lucid trunk build crashes at start |
Date: |
Tue, 11 May 2010 15:48:02 -0400 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/24.0.50 (gnu/linux) |
> I can't reproduce this.
Now, I sometimes can and sometimes can't. Still investigating.
> I used your configure flags, and tried with Xaw3d and straight Xaw.
> I guess it is some memory corruption or aligment problem.
I saw it on all my machines (tho admittedly, they're all running pretty
much the same Debian testing). I tried "xrdb -remove" but it didn't help.
> Can you compile without Xaw3d and just use standard Xaw?
You mean without-toolkit-scroll-bars? Good idea...
Hmm... configure still says "Does Emacs use -lXaw3d? yes".
But I'm not sure yet if it helps (I haven't seen it crash
without-toolkit-scroll-bars, but since then I haven't seen it crash on
that same machine with Xaw3d scroll bars either).
> You don't have that gcc 4.4 memcpy bug?
You mean the 4.5 bug? No, I have Debian's 4.4.2.
> Does it happen wih -O0 also?
Yup.
> If you compiled Xaw3d yourself, recompile it with debug and run gdb to
> the crash.
The crash I showed was with a hand-compiled Xaw3d with debug info
(actually an Xaw3d with some local changes so that you can dynamically
choose the Xaw-style or the motif-arrow-style scrollbars). But the
backtrace is in Xt code, not in Xaw(3d) code.
Stefan