GNU bug report logs - #12007
24.1.50; Crash in auto-revert-handler

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From: Dmitry Antipov <dmantipov <at> yandex.ru>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: Christoph Scholtes <cschol2112 <at> googlemail.com>, 12007 <at> debbugs.gnu.org
Subject: bug#12007: probably a fix
Date: Wed, 15 Aug 2012 20:34:17 +0400

[Message part 1 (text/plain, inline)]

On 08/13/2012 11:24 PM, Eli Zaretskii wrote:

> Perhaps related, the current trunk (revision 109586) segfaults on
> startup ("emacs -Q") on GNU/Linux, with the following backtrace:

Eli, please review a fix.

This looks simple: it's wrong to look at with f->output_data.XXX without
checking f->output_method first, so, FRAME_X_OUTPUT (f) may be non-zero
for TTY frames, and segfault comes when xg_mark_data looks at initial
("F1") frame with non-zero f->output_data.tty member.

Dmitry

[bug12007.patch (text/plain, attachment)]

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