GNU bug report logs - #3296
crash in ediff

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Message #5 received at submit <at> emacsbugs.donarmstrong.com (full text, mbox):

From: Paul Graham <pgraham <at> oasys-ds.com>
To: bug-gnu-emacs <at> gnu.org
Subject: crash in ediff
Date: Fri, 15 May 2009 12:15:48 -0400

Every so often, about once a week, my emacs session crashes while 
running ediff.  I'm enclosing a stack trace.  I will be running ediff 
comparing two directories.  The crash occurs when I'm in the buffer 
which lists pairs of files from the two directories.  I select the next 
pair to examine, and at the point emacs crashes.

I'm running this version:

   This is GNU Emacs 22.2.1 (i386-redhat-linux-gnu, GTK+ Version 2.12.9)
    of 2008-05-23 on xenbuilder4.fedora.phx.redhat.com

I'm running Fedora 9, Linux kernel 2.6.27.12-78.2.8.fc9.i686, GNOME 2.22.3.

Paul

Locking assertion failure.  Backtrace:
#0 /usr/lib/libxcb-xlib.so.0 [0x656767]
#1 /usr/lib/libxcb-xlib.so.0(xcb_xlib_lock+0x2e) [0x65690e]
#2 /usr/lib/libX11.so.6 [0x595109]
#3 /usr/lib/libX11.so.6(XFlush+0x29) [0x56db39]
#4 /usr/lib/libgdk-x11-2.0.so.0(gdk_display_flush+0xa0) [0x869384]
#5 /usr/lib/libgdk-x11-2.0.so.0 [0x86012c]
#6 /usr/lib/libgdk-x11-2.0.so.0(gdk_window_process_all_updates+0xf8) 
[0x860244]
#7 emacs [0x80cc9f2]
#8 emacs [0x80ccaa7]
#9 emacs [0x80cd105]
#10 emacs [0x80cd173]
#11 /usr/lib/libX11.so.6(_XError+0x109) [0x58da49]
#12 /usr/lib/libX11.so.6 [0x595ac8]
#13 /usr/lib/libX11.so.6(_XEventsQueued+0x55) [0x596435]
#14 /usr/lib/libX11.so.6(_XFlush+0x42) [0x5964c2]
#15 /usr/lib/libX11.so.6(XFlush+0x31) [0x56db41]
#16 emacs [0x80da290]
#17 emacs [0x8061839]
#18 emacs [0x8061c33]
#19 emacs [0x80dcb7d]
Locking assertion failure.  Backtrace:
#0 /usr/lib/libxcb-xlib.so.0 [0x656767]
#1 /usr/lib/libxcb-xlib.so.0(xcb_xlib_lock+0x2e) [0x65690e]
#2 /usr/lib/libX11.so.6 [0x595109]
#3 /usr/lib/libX11.so.6(XFlush+0x29) [0x56db39]
#4 /usr/lib/libgdk-x11-2.0.so.0(gdk_display_flush+0xa0) [0x869384]
#5 /usr/lib/libgdk-x11-2.0.so.0 [0x86012c]
#6 /usr/lib/libgdk-x11-2.0.so.0(gdk_window_process_all_updates+0xf8) 
[0x860244]
#7 emacs [0x80cc9f2]
#8 emacs [0x80ccaa7]
#9 emacs [0x80cd105]
#10 emacs [0x80cd173]
#11 /usr/lib/libX11.so.6(_XError+0x109) [0x58da49]
#12 /usr/lib/libX11.so.6 [0x595ac8]
#13 /usr/lib/libX11.so.6(_XEventsQueued+0x55) [0x596435]
#14 /usr/lib/libX11.so.6(_XFlush+0x42) [0x5964c2]
#15 /usr/lib/libX11.so.6(XFlush+0x31) [0x56db41]
#16 /usr/lib/libgdk-x11-2.0.so.0(gdk_display_flush+0xa0) [0x869384]
#17 /usr/lib/libgdk-x11-2.0.so.0 [0x86012c]
#18 /usr/lib/libgdk-x11-2.0.so.0(gdk_window_process_all_updates+0xf8) 
[0x860244]
#19 emacs [0x80cc9f2]
Locking assertion failure.  Backtrace:
#0 /usr/lib/libxcb-xlib.so.0 [0x656767]
#1 /usr/lib/libxcb-xlib.so.0(xcb_xlib_lock+0x2e) [0x65690e]
#2 /usr/lib/libX11.so.6 [0x595109]
#3 /usr/lib/libX11.so.6(XFlush+0x29) [0x56db39]
#4 /usr/lib/libgdk-x11-2.0.so.0(gdk_display_flush+0xa0) [0x869384]
#5 /usr/lib/libgdk-x11-2.0.so.0 [0x86012c]
#6 /usr/lib/libgdk-x11-2.0.so.0(gdk_window_process_all_updates+0xf8) 
[0x860244]
#7 emacs [0x80cc9f2]
#8 emacs [0x80ccaa7]
#9 emacs [0x80cd105]
#10 emacs [0x80cd173]
#11 /usr/lib/libX11.so.6(_XError+0x109) [0x58da49]
#12 /usr/lib/libX11.so.6 [0x595ac8]
#13 /usr/lib/libX11.so.6(_XEventsQueued+0x55) [0x596435]
#14 /usr/lib/libX11.so.6(_XFlush+0x42) [0x5964c2]
#15 /usr/lib/libX11.so.6(XFlush+0x31) [0x56db41]
#16 /usr/lib/libgdk-x11-2.0.so.0(gdk_display_flush+0xa0) [0x869384]
#17 /usr/lib/libgdk-x11-2.0.so.0 [0x86012c]
#18 /usr/lib/libgdk-x11-2.0.so.0(gdk_window_process_all_updates+0xf8) 
[0x860244]
#19 emacs [0x80cc9f2]
X protocol error: BadFont (invalid Font parameter) on protocol request 55

[1]+  Exit 70                 emacs  (wd: ~/oasys/sb)
(wd now: ~/oasys/sb/src)
[<sb> src]$

Message #8 received at 3296 <at> debbugs.gnu.org (full text, mbox):

From: Chong Yidong <cyd <at> stupidchicken.com>
To: Paul Graham <pgraham <at> oasys-ds.com>
Cc: 3296 <at> debbugs.gnu.org
Subject: Re: crash in ediff
Date: Fri, 01 Jan 2010 17:19:46 -0500

> Every so often, about once a week, my emacs session crashes while
> running ediff.  I'm enclosing a stack trace.  I will be running ediff
> comparing two directories.  The crash occurs when I'm in the buffer
> which lists pairs of files from the two directories.  I select the
> next pair to examine, and at the point emacs crashes.

> This is GNU Emacs 22.2.1 (i386-redhat-linux-gnu, GTK+ Version 2.12.9)
>  of 2008-05-23 on xenbuilder4.fedora.phx.redhat.com

Very sorry for the delay in responding.

Unfortunately, the stack trace you sent is not very informative.  If you
are still experiencing the problem, try running Emacs in a debugger and
getting a backtrace when the crash happens.  Depending on the backtrace,
we may be able to diagnose the problem.  However, we're not planning to
make any more 22.x releases.  We've fixed quite a lot of crash-related
bugs between emacs 22 and 23, so if you are experiencing stability
issues, you could try upgrading.

Message #17 received at 3296-done <at> debbugs.gnu.org (full text, mbox):

From: Glenn Morris <rgm <at> gnu.org>
To: 3296-done <at> debbugs.gnu.org
Subject: Re: crash in ediff
Date: Thu, 10 Mar 2011 01:50:05 -0500

Thanks for the report. Emacs 22 is very old and has not been supported
for some time. The latest version is 23.3. Please open new reports for
any issues you have with the new version.

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