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Section edit fails and loses page content

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Items
Status
Open
Subject
Section edit fails and loses page content
Version
9.x
Category
  • Usability
  • Regression
Feature
Wiki Syntax (text area, parser, external wiki, etc)
Submitted by
Jean-Marc Libs
Lastmod by
Jean-Marc Libs
Rating
(0)
Description

This is on trunk Revision: 37484 and still in current trunk (Révision : 37823)

I have a rather long wiki page.

When I use section edition (any section), saving gives a blank screen.

Then I go back to the page and the whole page is replaced by one single line like:
the text "PK" followed by hex "0003 0004 0014 0008"

Then it is necessary to rollback the page from the version before the section edit.

Additional info:
It does not happen on short pages. I have not been able to find time to reduce the offending page to a demo case 😑
The error logs say there is a PHP memory exhaustion but when i upgrade my memory from 128M to 256M, it exhausts just the same :

error log
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[Sun Oct 02 19:45:48 2011] [warn] [client xx.xx.xx.xx] mod_fcgid: stderr: PHP Fatal error:  Allowed memory size of 134217728 bytes exhausted (tried to allocate 4096 bytes) in /www/mywebsite/htdocs/lib/diff/Diff.php on line 460, referer: http://mywebsite/tiki-editpage.php?page=test+section+edition+1&hdr=1
[Sun Oct 02 19:45:48 2011] [warn] [client xx.xx.xx.xx] mod_fcgid: stderr: PHP Stack trace:, referer: http://mywebsite/tiki-editpage.php?page=test+section+edition+1&hdr=1
[Sun Oct 02 19:45:48 2011] [warn] [client xx.xx.xx.xx] mod_fcgid: stderr: PHP   1. {main}() mypath/htdocs/tiki-editpage.php:0, referer: http://mywebsite/tiki-editpage.php?page=test+section+edition+1&hdr=1
[Sun Oct 02 19:45:48 2011] [warn] [client xx.xx.xx.xx] mod_fcgid: stderr: PHP   2. TikiLib->update_page() mypath/htdocs/tiki-editpage.php:994, referer: http://mywebsite/tiki-editpage.php?page=test+section+edition+1&hdr=1
[Sun Oct 02 19:45:48 2011] [warn] [client xx.xx.xx.xx] mod_fcgid: stderr: PHP   3. diff2() mypath/htdocs/lib/tikilib.php:4230, referer: http://mywebsite/tiki-editpage.php?page=test+section+edition+1&hdr=1
[Sun Oct 02 19:45:48 2011] [warn] [client xx.xx.xx.xx] mod_fcgid: stderr: PHP   4. Tiki_Text_Diff_Renderer->render() mypath/htdocs/lib/diff/difflib.php:134, referer: http://mywebsite/tiki-editpage.php?page=test+section+edition+1&hdr=1
[Sun Oct 02 19:45:48 2011] [warn] [client xx.xx.xx.xx] mod_fcgid: stderr: PHP   5. Text_Diff_Renderer->_block() mypath/htdocs/lib/diff/difflib.php:80, referer: http://mywebsite/tiki-editpage.php?page=test+section+edition+1&hdr=1
[Sun Oct 02 19:45:48 2011] [warn] [client xx.xx.xx.xx] mod_fcgid: stderr: PHP   6. Text_Diff_Renderer_unified->_changed() mypath/htdocs/lib/diff/Renderer.php:126, referer: http://mywebsite/tiki-editpage.php?page=test+section+edition+1&hdr=1
[Sun Oct 02 19:45:48 2011] [warn] [client xx.xx.xx.xx] mod_fcgid: stderr: PHP   7. diffChar() mypath/htdocs/lib/diff/renderer_unified.php:64, referer: http://mywebsite/tiki-editpage.php?page=test+section+edition+1&hdr=1
[Sun Oct 02 19:45:48 2011] [warn] [client xx.xx.xx.xx] mod_fcgid: stderr: PHP   8. Text_Diff->Text_Diff() mypath/htdocs/lib/diff/difflib.php:152, referer: http://mywebsite/tiki-editpage.php?page=test+section+edition+1&hdr=1
[Sun Oct 02 19:45:48 2011] [warn] [client xx.xx.xx.xx] mod_fcgid: stderr: PHP   9. Text_Diff_Engine_native->diff() mypath/htdocs/lib/diff/Diff.php:44, referer: http://mywebsite/tiki-editpage.php?page=test+section+edition+1&hdr=1
[Sun Oct 02 19:45:48 2011] [warn] [client xx.xx.xx.xx] mod_fcgid: stderr: PHP  10. Text_Diff_Engine_native->_compareseq() mypath/htdocs/lib/diff/Diff.php:379, referer: http://mywebsite/tiki-editpage.php?page=test+section+edition+1&hdr=1
[Sun Oct 02 19:45:48 2011] [warn] [client xx.xx.xx.xx] mod_fcgid: stderr: PHP  11. Text_Diff_Engine_native->_diag() mypath/htdocs/lib/diff/Diff.php:586, referer: http://mywebsite/tiki-editpage.php?page=test+section+edition+1&hdr=1

Importance
8
Priority
40
Demonstrate Bug on Tiki 19+
Demonstrate Bug (older Tiki versions)
Created
Monday 03 October, 2011 11:05:11 UTC
by Jean-Marc Libs
LastModif
Monday 03 October, 2011 19:58:42 UTC


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