8:45 a.m.
================================================================
Dear Bug Team!
This is the second time that I've had a crash while searching.
I don't know what circumstances might reproduce the error. The
buffer this time was a Python file, I think that last time it
might have been XML. This search operation is pretty common
so the crash is very infrequent. I'd never seen a crash with
21.5.17 which was my previous version.
----------------------------------------------------------------
Fatal error: assertion failed, file
c:\XEmacsBuild\xemacs-21.5-2007-09-26\src\search.c, line 1487,
(this_pos) > ((Bytebpos) 1) && this_pos <= ((buf)->text->z + 0)
Fatal error.
Your files have been auto-saved.
Use `M-x recover-session' to recover them.
Your version of XEmacs was distributed with a PROBLEMS file that may describe
your crash, and with luck a workaround. Please check it first, but do report
the crash anyway.
Please report this bug by invoking M-x report-emacs-bug, or by selecting
`Send Bug Report' from the Help menu. If that won't work, send ordinary
email to `xemacs-beta(a)xemacs.org'. *MAKE SURE* to include this entire
output from this crash, especially including the Lisp backtrace, as well as
the XEmacs configuration from M-x describe-installation (or equivalently,
the file `Installation' in the top of the build tree).
If you are fortunate enough to have some sort of debugging aid installed
on your system, for example Visual C++, and you can get a C stack backtrace,
*please* include it, as it will make our life far easier.
Lisp backtrace follows:
# (unwind-protect ...)
# (unwind-protect ...)
# (unwind-protect ...)
# (unwind-protect ...)
# (unwind-protect ...)
# (unwind-protect ...)
# (unwind-protect ...)
search-backward("plus_pi" nil t)
# bind (case-fold-search forwardp string)
isearch-highlight-advance("plus_pi" nil)
# bind (lastpoint)
# (unwind-protect ...)
# bind (end start)
isearch-highlightify-region(1 1878)
# bind (need-start-over)
isearch-highlight-all-update()
isearch-update()
isearch-search-and-update()
# bind (chunk)
isearch-yank(#<compiled-function nil "...(3)" [1] 1>)
#<compiled-function nil "...(4)" [isearch-yank #<compiled-function
nil "...(3)
" [1] 1>] 2 1220479 nil>()
call-interactively(isearch-yank-word)
(dispatch-event "[internal]")
# (condition-case ... . error)
# (catch top-level ...)
================================================================
System Info to help track down your bug:
---------------------------------------
OS version:
Microsoft Windows XP [Version 5.1.2600]
OS: Windows_NT
XEmacs 21.5-b28 "fuki" (+CVS-20070925) configured for `i586-pc-win32'.
Building XEmacs using "nmake".
Building XEmacs using make flags " ".
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For lib-src, using compiler "cl -nologo -W3 -DSTRICT -Zi -Od -MD
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Compiling as C++.
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Compiling in support for PNG images.
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Compiling in support for JPEG images.
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Compiling in support for toolbars.
Compiling in support for dialogs.
Compiling in support for widgets.
Compiling in support for native sounds.
Using portable dumper.
Using system malloc.
Using DLL version of C runtime library.
Compiling in extra internal error-checking.
NOTE: ---------------------------------------------------------
NOTE: Compiling in support for runtime error-checking.
NOTE: XEmacs will run noticeably more slowly as a result.
NOTE: Error-checking is on by default for XEmacs beta releases.
NOTE: ---------------------------------------------------------
Compiling in debugging support (no slowdown).
Using new experimental GC mark algorithms.
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-------------------------
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(current-locale) => "English_United States.1252"
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--
Pete Forman -./\.- Disclaimer: This post is originated
WesternGeco -./\.- by myself and does not represent
pete.forman(a)westerngeco.com -./\.- the opinion of Schlumberger or
http://petef.port5.com -./\.- WesternGeco.
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9:41 a.m.
At 2008-02-20 08:45 +0000, Pete Forman wrote:
I don't know what circumstances might reproduce the error. The
buffer this time was a Python file,
I've had success at reproducing the error. Here is a cut down
version of the file that was giving me grief. It uses UNIX line
endings though I'm running on XP.
To show the error, put the cursor at the beginning of "plus_pi".
Press C-s C-w
Then the crash happens
=== unwrap5.py ===
import numpy
def unwrap(phase, minFreqIndex):
"""Unwrap phase by adding multiples of 2*pi.
"""
# pi is approximately 3.141592653589793238462643383279502884197
#
# In single precision, 3.1415925 < pi < 3.1415927
# The nearest representation to pi (3.1415927) is greater than pi and >=
# is the appropriate test for diff.
#
# In double precision, 3.1415926535897931 < pi < 3.1415926535897936
# The nearest representation to pi (3.1415926535897931) is less
than pi and >
# would have been the appropriate test for diff.
plus_pi = 3.1415927
minus_pi = -3.1415927
two_pi_dbl = 6.283185307179586
=== end of unwrap5.py ===
The problem is the same starting XEmacs with -q.
The problem is similar opening the raw file **1. Then I see the crash
after C-s C-w C-w, probably because of the different mode syntax.
**1 I used this snippet to visit the raw file.
;; from Erik Naggum <erik(a)naggum.no>
(defun find-file-raw (filename)
"Edit file FILENAME without the usual magic.
Switch to a buffer visiting file FILENAME,
creating one if none already exists."
(interactive "FFind file: ")
(switch-to-buffer (find-file-noselect filename nil t)))
--
Pete Forman -./\.- Disclaimer: This post is originated
WesternGeco -./\.- by myself and does not represent
pete.forman(a)westerngeco.com -./\.- the opinion of Schlumberger or
http://petef.port5.com -./\.- WesternGeco.
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10:11 a.m.
Pete Forman writes:
Fatal error: assertion failed, file
c:\XEmacsBuild\xemacs-21.5-2007-09-26\src\search.c, line 1487,
(this_pos) > ((Bytebpos) 1) && this_pos <= ((buf)->text->z + 0)
This crash was fixed fairly recently, I think:
2007-12-05 Stephen J. Turnbull <stephen(a)xemacs.org>
* search.c (simple_search): Fix underrun in reverse search.
(search_buffer): Clarify decision to use boyer_moore or not.
To avoid it you'll need to update to the tip of the trunk. We've
moved to Mercurial (see http://www.xemacs.org/Develop/hgaccess.html
for a brief introduction to usage) for mainline development. But for
a little longer this will be mirrored to the old CVS repository (this
patch should be in in there).
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10:33 a.m.
"Stephen J. Turnbull" <stephen(a)xemacs.org> writes:
Pete Forman writes:
> Fatal error: assertion failed, file
> c:\XEmacsBuild\xemacs-21.5-2007-09-26\src\search.c, line 1487,
> (this_pos) > ((Bytebpos) 1) && this_pos <= ((buf)->text->z +
0)
This crash was fixed fairly recently, I think:
2007-12-05 Stephen J. Turnbull <stephen(a)xemacs.org>
* search.c (simple_search): Fix underrun in reverse search.
(search_buffer): Clarify decision to use boyer_moore or not.
To avoid it you'll need to update to the tip of the trunk. We've
moved to Mercurial (see http://www.xemacs.org/Develop/hgaccess.html
for a brief introduction to usage) for mainline development. But for
a little longer this will be mirrored to the old CVS repository (this
patch should be in in there).
I do not have the tools to build on XP myself. Is that fix
incorporated here?
http://ftp.xemacs.org/windows/testing/XEmacs_Setup_21.5-2008-01-24.exe
--
Pete Forman -./\.- Disclaimer: This post is originated
WesternGeco -./\.- by myself and does not represent
pete.forman(a)westerngeco.com -./\.- the opinion of Schlumberger or
http://petef.port5.com -./\.- WesternGeco.
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12:31 p.m.
On Feb 20, 2008 5:33 AM, Pete Forman <pete.forman(a)westerngeco.com> wrote:
"Stephen J. Turnbull" <stephen(a)xemacs.org> writes:
> Pete Forman writes:
>
>> Fatal error: assertion failed, file
> > c:\XEmacsBuild\xemacs-21.5-2007-09-26\src\search.c, line 1487,
> > (this_pos) > ((Bytebpos) 1) && this_pos <=
((buf)->text->z + 0)
>
> This crash was fixed fairly recently, I think:
>
> 2007-12-05 Stephen J. Turnbull <stephen(a)xemacs.org>
>
> * search.c (simple_search): Fix underrun in reverse search.
> (search_buffer): Clarify decision to use boyer_moore or not.
>
> To avoid it you'll need to update to the tip of the trunk. We've
> moved to Mercurial (see http://www.xemacs.org/Develop/hgaccess.html
> for a brief introduction to usage) for mainline development. But for
> a little longer this will be mirrored to the old CVS repository (this
> patch should be in in there).
I do not have the tools to build on XP myself. Is that fix
incorporated here?
http://ftp.xemacs.org/windows/testing/XEmacs_Setup_21.5-2008-01-24.exe
Yes, at least according to the ChangeLog. I have not yet verified
your test case.
- Vin
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4 comments
3 participants
participants (3)
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Pete Forman -
Stephen J. Turnbull -
Vin Shelton