[[Bug 1006898] Re: [SRU] dnsmasq fails at leasing issues when using vlan mode]

[ROCHE]

Hi,
Thanks to your work.  It is very bad to do not have sound in this version of Ubuntu (kernel 3 2 025 and version 12.10 (Quanta). This problem comes with tha updating 3 2 024 to 3 2 025. 3 2 025 seems to forget the alsa. 
 
For memory :
Matching subscriptions: No Audio after update kernel 3 2 025 in Ubuntu 12 04  32bits. Good in kernel 3 2 024 !   Alsa 1 025 not compiled in kernel 3 2 025.  It's the same problem with ubuntu 12 10 alpha I tried today too !(but kernel 3 4 ...).  A+
> https://bugs.launchpad.net/bugs/1006898

an info too :  
dans la console cette ligne :
« cat /proc/asound/version »
Si cela te donne un truc de ce genre, alors le problème vient d'ailleurs :
Advanced Linux Sound Architecture Driver Version 1.0.25.
Compiled on Mar  9 2012 for kernel 3 2 025-generic PAE 
Si la ligne ne e renvoie que la ligne :
Advanced Linux Sound Architecture Driver Version 1.0.24.
Alors pas besoin de cherche midi à 14 heures, ton son ne pourra fonctionné vu qu'Alsa n'est pas compilé avec le kernel que tu utilise à ce moment là.

Sorry, it's in french but i have only "Advanced Linux Sound Architecture
Driver Version 1.0.24." when I tap " cat /proc/asound/version".  And the
sound driver installed is Version 1.0.25 !

Best regards.


Guy Roche

mail         guyroche08 at orange.fr
mail         guyroche08 at aol.com

domicile     0324 376446
mobile         0619 178018

> Message du 15/06/12 17:22
> de : "ThierryCarrez"<thierry.carrez+lp at gmail.com>
> à : guyroche08 at aol.com
> cc : 
> objet : [Bug 1006898] Re: [SRU] dnsmasq fails at leasing issues when using	vlan mode
> 
> 
> 2.62 is in Quantal
> 
> ** Changed in: dnsmasq (Ubuntu)
>        Status: Triaged => Fix Released
> 
> -- 
> You received this bug notification because you are subscribed to Ubuntu
> ubuntu-12.04.1.
> Matching subscriptions: No Audio after update kernel 3 2 025 in Ubuntu 12 04  32bits. Good in kernel 3 2 024 !   Alsa 1 025 not compiled in kernel 3 2 025.  It's the same problem with ubuntu 12 10 alpha I tried today too !(but kernel 3 4 ...).  A+
> https://bugs.launchpad.net/bugs/1006898
> 
> Title:
>   [SRU] dnsmasq fails at leasing issues when using vlan mode
> 
> Status in “dnsmasq” package in Ubuntu:
>   Fix Released
> Status in “dnsmasq” source package in Precise:
>   Triaged
> 
> Bug description:
>   There is an issue with the way nova uses dnsmasq in VLAN mode. It starts
>   up a single copy of dnsmasq for each vlan on the network host (or on
>   every host in multi_host mode). The problem is in the way that dnsmasq
>   binds to an ip address and port[2]. Both copies can respond to broadcast
>   packet, but unicast packets can only be answered by one of the copies.
> 
>   In nova this means that guests from only one project will get responses
>   to their unicast dhcp renew requests.  Unicast projects from guests in
>   other projects get ignored. What happens next is different depending on
>   the guest os.  Linux generally will send a broadcast packet out after
>   the unicast fails, and so the only effect is a small (tens of ms) hiccup
>   while interface is reconfigured.  It can be much worse than that,
>   however. I have seen cases where Windows just gives up and ends up with
>   a non-configured interface.
> 
>   This bug was first noticed by some users of openstack who rolled their
>   own fix. Basically, on linux, if you set the SO_BINDTODEVICE socket
>   option, it will allow different daemons to share the port and respond to
>   unicast packets, as long as they listen on different interfaces. I
>   managed to communicate with Simon Kelley, the maintainer of dnsmasq and
>   he has integrated a fix[3] for the issue in the current version[1] of
>   dnsmaq.
> 
>   [3]
>   http://thekelleys.org.uk/gitweb/?p=dnsmasq.git;a=commitdiff;h=9380ba70d67db6b69f817d8e318de5ba1e990b12
> 
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/ubuntu/+source/dnsmasq/+bug/1006898/+subscriptions
>

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https://bugs.launchpad.net/bugs/1006898

Title:
  [SRU] dnsmasq fails at leasing issues when using vlan mode

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