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	 <4AE99A25.5080808@webthing.com>
Date: Thu, 29 Oct 2009 15:00:15 +0100
Message-ID: <22c155ee0910290700wf707d9n555b456e5c179993@mail.gmail.com>
From: Martin Gerdes <martingrds@googlemail.com>
To: users@httpd.apache.org
Content-Type: multipart/alternative; boundary=00032555a15ab24c91047713544b
Subject: Re: [users@httpd] using ProxyHTMLEnable On,
 mod_proxy_html or xml2enc
	segfaults

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Allright, I will try.

Stuff I can tell you immediately:

The packet that causes the crash looks like this (sniffed with tcpdump):

HTTP/1.1 302 Moved Temporarily
Server: Apache-Coyote/1.1
Location:
http://localhost:50100/dwhfe/app/start/StartPageSelector.htm;jsessionid=B6B4331C1C0C14A7BE964B89E1E76150
Content-Language: de-DE
Content-Length: 0
Date: Thu, 29 Oct 2009 13:47:48 GMT

That packet goes into the apache proxy, and does not come out of it, with
the apache error log reporting the segfault.
No entries immediately prior to the segfault in the log file, with verbose
logging turned on, and loglevel info.

Will now test whether I can put the same content into a static website
getting the same crash...

2009/10/29 Nick Kew <nick@webthing.com>

> Martin Gerdes wrote:
>
>  I can load the login page of the webapp, though it is returned in utf8.
>> Once I send of the login data, it segfaults. It did NOT do that when I
>> used SetOutputFilter instead of ProxyHTMLEnable, so I assume that xml2enc
>> crashes, though that is only conjecture.
>>
>> Line in apache error log:
>> "[Thu Oct 29 14:18:22 2009] [notice] child pid 29443 exit signal
>> Segmentation fault (11)"
>>
>
> In that case, we're back to step one.  Construct a minimal test case
> that reproduces the fault, so I can get a handle on it.
>
> --
> Nick Kew
>
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Content-Transfer-Encoding: quoted-printable

Allright, I will try.<br><br>Stuff I can tell you immediately:<br><br>The p=
acket that causes the crash looks like this (sniffed with tcpdump):<br><br>=
HTTP/1.1 302 Moved Temporarily<br>Server: Apache-Coyote/1.1<br>Location: <a=
 href=3D"http://localhost:50100/dwhfe/app/start/StartPageSelector.htm;jsess=
ionid=3DB6B4331C1C0C14A7BE964B89E1E76150">http://localhost:50100/dwhfe/app/=
start/StartPageSelector.htm;jsessionid=3DB6B4331C1C0C14A7BE964B89E1E76150</=
a><br>
Content-Language: de-DE<br>Content-Length: 0<br>Date: Thu, 29 Oct 2009 13:4=
7:48 GMT<br><br>That packet goes into the apache proxy, and does not come o=
ut of it, with the apache error log reporting the segfault.<br>No entries i=
mmediately prior to the segfault in the log file, with verbose logging turn=
ed on, and loglevel info.<br>
<br>Will now test whether I can put the same content into a static website =
getting the same crash...<br><br><div class=3D"gmail_quote">2009/10/29 Nick=
 Kew <span dir=3D"ltr">&lt;<a href=3D"mailto:nick@webthing.com">nick@webthi=
ng.com</a>&gt;</span><br>
<blockquote class=3D"gmail_quote" style=3D"border-left: 1px solid rgb(204, =
204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><div class=3D"im"=
>Martin Gerdes wrote:<br>
<br>
<blockquote class=3D"gmail_quote" style=3D"border-left: 1px solid rgb(204, =
204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
I can load the login page of the webapp, though it is returned in utf8.<br>
Once I send of the login data, it segfaults. It did NOT do that when I used=
 SetOutputFilter instead of ProxyHTMLEnable, so I assume that xml2enc crash=
es, though that is only conjecture.<br>
<br>
Line in apache error log:<br>
&quot;[Thu Oct 29 14:18:22 2009] [notice] child pid 29443 exit signal Segme=
ntation fault (11)&quot;<br>
</blockquote>
<br></div>
In that case, we&#39;re back to step one. =A0Construct a minimal test case<=
br>
that reproduces the fault, so I can get a handle on it.<br>
<br>
-- <br>
Nick Kew<br>
<br>
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