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Subject: Re: httpd 2.2.8 + mod_cache segfaults
Date: Wed, 20 Feb 2008 12:29:04 +0100
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Thread-Topic: Re: httpd 2.2.8 + mod_cache segfaults
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From: =?iso-8859-1?Q?Pl=FCm=2C_R=FCdiger=2C_VF-Group?=
 <ruediger.pluem@vodafone.com>
To: <dev@httpd.apache.org>

=20

> -----Urspr=FCngliche Nachricht-----
> Von: Niklas Edmundsson=20
> Gesendet: Mittwoch, 20. Februar 2008 11:40
> An: dev@httpd.apache.org
> Betreff: httpd 2.2.8 + mod_cache segfaults
>=20
>=20
> Hi all!
>=20
> Getting a few cycles I thought I should do an easy migration to httpd=20
> 2.2.8, but it seems that the thing is dumping core on me...
>=20
> Are anyone else using httpd 2.2.8 together with mod_cache=20
> seeing this?=20

Not so far.

> At the moment I'm not sure where the problem is. Our mod_disk_cache=20
> patches are unchanged from 2.2.6 and my patch for mod_cache.c is the=20
> same (the relaxupdates feature, and it's not enabled in config), so=20
> I'm suspecting something changed between httpd 2.2.6 and 2.2.8 that=20
> makes it fall apart on me.
>=20
> Anyone seen something similar? Any hints on where to dig?

>From what I can see in the stack trace frame #4 points to the NULL =
pointer.
Looks like there is no copy function set for the particular bucket type =
that
gets processesd (not even the default one (apr_bucket_copy_notimpl) that =
returns APR_ENOTIMPL).

So please try the following:

frame 5
dump_brigade bb
dump_bucket ec

This should give a hint which bucket / bucket type fails and should give
hints how to proceed further.

Regards

R=FCdiger