I think this bug has come back.
https://lists.kolabsys.com/pipermail/bugzilla/2013-August/010518.html[16-Mar-2016 19:08:46 America/New_York] PHP Fatal error: Maximum function nesting level of '100' reached, aborting! in /usr/share/roundcube/program/lib/Roundcube/rcube_washtml.php on line 291
[16-Mar-2016 19:08:46 America/New_York] PHP Stack trace:
[16-Mar-2016 19:08:46 America/New_York] PHP 1. {main}() /usr/share/roundcube/index.php:0
[16-Mar-2016 19:08:46 America/New_York] PHP 2. include_once() /usr/share/roundcube/index.php:285
[16-Mar-2016 19:08:46 America/New_York] PHP 3. rcmail_output_html->send() /usr/share/roundcube/program/steps/mail/show.inc:296
[16-Mar-2016 19:08:46 America/New_York] PHP 4. rcmail_output_html->parse() /usr/share/roundcube/program/include/rcmail_output_html.php:364
[16-Mar-2016 19:08:46 America/New_York] PHP 5. rcmail_output_html->parse_xml() /usr/share/roundcube/program/include/rcmail_output_html.php:504
[16-Mar-2016 19:08:46 America/New_York] PHP 6. preg_replace_callback() /usr/share/roundcube/program/include/rcmail_output_html.php:804
[16-Mar-2016 19:08:46 America/New_York] PHP 7. rcmail_output_html->xml_command() /usr/share/roundcube/program/include/rcmail_output_html.php:804
[16-Mar-2016 19:08:46 America/New_York] PHP 8. call_user_func() /usr/share/roundcube/program/include/rcmail_output_html.php:924
[16-Mar-2016 19:08:46 America/New_York] PHP 9. rcmail_message_body() /usr/share/roundcube/program/include/rcmail_output_html.php:924
[16-Mar-2016 19:08:46 America/New_York] PHP 10. rcmail_print_body() /usr/share/roundcube/program/steps/mail/func.inc:1127
[16-Mar-2016 19:08:46 America/New_York] PHP 11. rcmail_wash_html() /usr/share/roundcube/program/steps/mail/func.inc:713
[16-Mar-2016 19:08:46 America/New_York] PHP 12. rcube_washtml->wash() /usr/share/roundcube/program/steps/mail/func.inc:681
[16-Mar-2016 19:08:46 America/New_York] PHP 13. rcube_washtml->dumpHtml() /usr/share/roundcube/program/lib/Roundcube/rcube_washtml.php:381
[16-Mar-2016 19:08:46 America/New_York] PHP 14. rcube_washtml->dumpHtml() /usr/share/roundcube/program/lib/Roundcube/rcube_washtml.php:330
[16-Mar-2016 19:08:46 America/New_York] PHP 15. rcube_washtml->dumpHtml() /usr/share/roundcube/program/lib/Roundcube/rcube_washtml.php:321
[16-Mar-2016 19:08:46 America/New_York] PHP 16. rcube_washtml->dumpHtml() /usr/share/roundcube/program/lib/Roundcube/rcube_washtml.php:321
[16-Mar-2016 19:08:46 America/New_York] PHP 17. rcube_washtml->dumpHtml() /usr/share/roundcube/program/lib/Roundcube/rcube_washtml.php:321
[16-Mar-2016 19:08:46 America/New_York] PHP 18. rcube_washtml->dumpHtml() /usr/share/roundcube/program/lib/Roundcube/rcube_washtml.php:321
[16-Mar-2016 19:08:46 America/New_York] PHP 19. rcube_washtml->dumpHtml() /usr/share/roundcube/program/lib/Roundcube/rcube_washtml.php:321
[16-Mar-2016 19:08:46 America/New_York] PHP 20. rcube_washtml->dumpHtml() /usr/share/roundcube/program/lib/Roundcube/rcube_washtml.php:321
<SNIP>
PHP 99. rcube_washtml->dumpHtml() /usr/share/roundcube/program/lib/Roundcube/rcube_washtml.php:321
It appears to happen with e-mails that have attachements. First one was an e-mail with an HTML attachment. This one has a PDF attachment.
uname -a
Linux postoffice 3.13.0-83-generic #127-Ubuntu SMP Fri Mar 11 00:25:37 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
more /etc/issue
Ubuntu 14.04.4 LTS \n \l
php -v
PHP 5.5.9-1ubuntu4.14 (cli) (built: Oct 28 2015 01:34:46)
Copyright (c) 1997-2014 The PHP Group
Zend Engine v2.5.0, Copyright (c) 1998-2014 Zend Technologies
with Zend OPcache v7.0.3, Copyright (c) 1999-2014, by Zend Technologies
with Xdebug v2.2.3, Copyright (c) 2002-2013, by Derick Rethans
I can still access / read all other e-mail. It's just these two (that are the same with the same PDF) and the html message (since deleted using alpine).
Let me know what else I can post to be helpful, or if someone wants me to forward the message in question.
Thanks.