From: Eli Zaretskii <eliz@gnu.org>
To: rms@gnu.org
Cc: 9760@debbugs.gnu.org
Subject: bug#9760: 24.0.50; crash
Date: Sun, 16 Oct 2011 08:40:36 -0400 [thread overview]
Message-ID: <E1RFQ16-0004C6-Jf@fencepost.gnu.org> (raw)
In-Reply-To: <E1RFOku-0000LT-4u@fencepost.gnu.org> (message from Richard Stallman on Sun, 16 Oct 2011 07:19:48 -0400)
> Date: Sun, 16 Oct 2011 07:19:48 -0400
> From: Richard Stallman <rms@gnu.org>
> CC: 9760@debbugs.gnu.org
>
> > #0 0x0043ff40 in set_cursor_from_row (w=0x8ee928, row=0xc558cc,
> > matrix=0x8eef58, delta=0, delta_bytes=0, dy=0, dvpos=0) at xdisp.c:13693
>
> Line 13693 of xdisp.c is this:
>
> while (/* not marched to end of glyph row */
>
> This cannot possibly crash.
>
> It must be an optimization weirdness, because I have not updated that source
> file since compiling. I updated and recompiled specifically to reproduce
> this in the latest sources.
>
> It crashes with SEGV.
>
> I can recompile with -O0 if that helps.
Yes, please. Backtraces from optimized builds are useless for
debugging.
next prev parent reply other threads:[~2011-10-16 12:40 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-10-14 21:41 bug#9760: 24.0.50; crash Richard Stallman
2011-10-14 22:14 ` Eli Zaretskii
2011-10-15 19:44 ` Richard Stallman
2011-10-15 20:56 ` Eli Zaretskii
2011-10-16 11:19 ` Richard Stallman
2011-10-16 12:40 ` Eli Zaretskii [this message]
2011-10-16 21:40 ` Richard Stallman
2011-10-17 3:55 ` Eli Zaretskii
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