Bug#639825: Apache2 seek broken

[Takis Issaris <takis.issaris@uhasselt.be>]

2011/9/5 Stefan Fritsch <sf@sfritsch.de>:
> On Monday 05 September 2011, Takis Issaris wrote:
>> 2011/9/2 Julien Cristau <jcristau@debian.org>:
>> > On Wed, Aug 31, 2011 at 16:03:47 +0200, Takis Issaris wrote:
>> >
>> > [...]
>> >
>> >> Then the log shows these syscalls happening over and over again
>> >> and it doesn't stop until I kill the client.
>> >> poll([{fd=37, events=POLLIN}], 1, 100)  = 1 ([{fd=37,
>> >> revents=POLLIN}]) recvfrom(37, "", 32516, 0, NULL, NULL)  = 0
>> >> poll([{fd=37, events=POLLIN}], 1, 100)  = 1 ([{fd=37,
>> >> revents=POLLIN}]) recvfrom(37, "", 32516, 0, NULL, NULL)  = 0
>> >> ...
>> >
>> > That seems completely broken.  When recvfrom returns 0, it means
>> > the connection has been shutdown on the other end, the client
>> > should just close it at that point, not start an infinite
>> > loop...
>>
>> I just noticed Stefan's fix in the FFmpeg GIT repository, so that's
>> even better:
>> http://git.videolan.org/?p=ffmpeg.git;a=commit;h=346ea9e22240b4442
>> f479518f6c3b40c9bec9487
>
> This fixes only the detection of range support. The looping is a
> different bug in libavformat which is not fixed by the above commit.
> But maybe it is not triggered if range support works.

For now, I haven't seen it reappear, but two bugs would explain why I
indeed sometimes seemed to get crashes and sometimes "hangs"
(looping).