On Mon, May 4, 2009 at 6:45 AM, Aurelien Jarno <aurel...@aurel32.net> wrote: > On Sun, May 03, 2009 at 08:54:07PM +0200, Luca Tettamanti wrote: >> Package: libc6 >> Version: 2.9-9 >> Severity: normal >> >> Hello, I was affected by the resolver bug that was solved in 2.9-7; as of >> 2.9-9 >> the resolver stopped working again. The automatic workaround that is >> mentioned >> in the changelog is not working, and "single-request" in resolv.conf doesn't >> seem to have any effect either. >> >> Here's a dump of the resolver trying to get the address of google.com: >> >> 14:11:00.754265 IP (tos 0x0, ttl 64, id 45448, offset 0, flags [DF], proto >> UDP (17), length 60) >> 10.0.0.3.60486 > 10.0.0.138.53: [udp sum ok] 39108+ A? www.google.com. >> (32) >> 14:11:00.754303 IP (tos 0x0, ttl 64, id 45449, offset 0, flags [DF], proto >> UDP (17), length 60) >> 10.0.0.3.60486 > 10.0.0.138.53: [udp sum ok] 48015+ AAAA? >> www.google.com. (32) >> 14:11:00.759312 IP (tos 0x0, ttl 64, id 1324, offset 0, flags [none], proto >> UDP (17), length 60) >> 10.0.0.138.53 > 10.0.0.3.60486: [udp sum ok] 48015 NotImp q: AAAA? >> www.google.com. 0/0/0 (32) >> 14:11:00.817710 IP (tos 0x0, ttl 64, id 1325, offset 0, flags [none], proto >> UDP (17), length 144) >> 10.0.0.138.53 > 10.0.0.3.60486: 39108 q: A? www.google.com. 5/0/0 >> www.google.com. CNAME www.l.google.com.[|domain] >> >> The DNS server (it's my ADSL router) responds NotImp to the AAAA query (it >> does >> not support IPv6). The reply (CNAME) to the A query seems correct though. >> > > Could you please try the glibc from http://temp.aurel32.net/glibc-test/ ? > I have backported a few more patch from upstream, but I have no way to > know if they change something or not.
The option single-request works, the automagic workaround does not, 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? Luca -- To UNSUBSCRIBE, email to debian-glibc-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org