Bug#526823: libc6 2.9-9 broke DNS resolver again

[Luca Tettamanti <kronos.it@gmail.com>]

On Mon, May 4, 2009 at 10:11 PM, Aurelien Jarno <aurelien@aurel32.net> wrote:
> On Mon, May 04, 2009 at 09:59:22PM +0200, Luca Tettamanti wrote:
>> The option single-request works, the automagic workaround does not,
>
> That's a good news.
>
>> i.e. I always see the two requests going out in parallel.
>> Actually I'm not sure I understand how it's supposes to work: if the
>> first request fails usually the caller gives up, no?
>
> The first request done by a program should timeout, and the second
> request by the same program should then be done sequentially, like when
> "single-request" is set.

That's not what is happening though. I try to open a page in konqueror
(I also tried other programs, it's not specific to konqueror): I see
two request (A and AAAA) going out at the same time; konqueror says
it's unable to resolve the address - so far so good. I try to reload
the page and I still see both requests going out at the same time
(failure again). With single-request I see the first query, its answer
and only then the second query and its reply - as expected.
Furthermore I fear the workaround won't work for one-shot programs,
like apt helpers, right?

Luca