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bug#15863: Segmentation fault when traversing long lines


From: Eli Zaretskii
Subject: bug#15863: Segmentation fault when traversing long lines
Date: Mon, 11 Nov 2013 22:33:17 +0200

> Date: Mon, 11 Nov 2013 21:04:28 +0100
> From: Aaron France <address@hidden>
> 
> I seem to consistently be able to make emacs segfault in both the slime 
> repl and the rgrep results window. Whenever the line is unusually long 
> (how long? About 2-300 chars long?) and then go to the end of the line, 
> it segfaults.

If this is consistent, can you provide a reproducible test case,
starting with "emacs -Q"?

> I've got the gdb backtrace, which is in this link: 
> https://gist.github.com/AeroNotix/368ada4c84e7a52f461d

Thanks, but it's hard to do anything with just this backtrace.  Can
you at least see what was the immediate reason for the crash?  E.g.,
is 'glyph' a NULL pointer?

Also, how come you get truncation glyphs on a GUI frame? did you
disable the fringes or something?

Thanks.





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