Bug#494768: narrowed version range

[Stefan Fritsch <sf@sfritsch.de>]

Hi,

it is extremely unlikely that this problem is due to any apache 
change. The changes between 2.2.9-4 and -6 were very small and not in 
any way related to such core functionality. Libapr/libaprutil haven't 
changed in testing since 7/10, either. It is more likely that this is 
a kernel issue.

On Tuesday 12 August 2008, cfeller@rocketmail.com wrote:
> after further investigation, the sendfile() functionality was
> purportedly working as recently as 7/24, which would put versions
> at 2.2.9-5 (apache2.2) and 2.6.25-7 (linux-image).  I verified this
> by looking through apache logs, and there was a datafile (which
> resides on a CIFS partition) downloaded on 7/24.  The apache logs
> indicate a successful GET request (code 200) on 7/24.  Although
> this doesn't confirm a complete download happened on 7/24, it
> reportely was complete.

I am not sure you can trust the access logs. At least there is another 
(rather old) bug report that sendfile failures are not reported in 
some cases.

To narrow the problem down, you should try to strace an apache process 
during a failed request. You could also try to set "enablemmap off".

Cheers,
Stefan