Bug#660882: Atalkd fails in Xen DomU - Can't configure multicast
tags 660882 +upstream
severity 660882 wishlist
retitle 660882 pv network device does not support multicast
thanks
Hi Simon,
I'm afraid the Xen PV drivers (on Linux at least) do not support
multicast.
There has historically been some support for multicast, IIRC the old
Solaris front and backends did support it so there is some support
defined but not implemented. e.g. see xen/include/public/io/netif.h and
the XEN_NETIF_EXTRA_TYPE_MCAST_{ADD,DEL} message types but these are not
implemented in the Linux front/backends.
If you want this fixed I think your best bet would be to engage with the
upstream project on xen-de...@lists.xen.org (and perhaps
net...@vger.kernel.org too). I'm afraid this is more than likely going
to mean scratching your own itch and implementing the required support.
Probably not the answer you were looking for, sorry.
Ian.
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Bug#660882: Atalkd fails in Xen DomU - Can't configure multicast
Further update. I've upgraded the client to Wheezy as well (same kernel and libc6 as host). Still no change. -- Simon Hobson Visit http://www.magpiesnestpublishing.co.uk/ for books by acclaimed author Gladys Hobson. Novels - poetry - short stories - ideal as Christmas stocking fillers. Some available as e-books. -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Bug#660882: Atalkd fails in Xen DomU - Can't configure multicast
Package: xen-hypervisor-4.0-amd64 Version: 4.0.1-4 Severity: normal See also, bug 660768 http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=660768 atalkd appears to be unable to open virtual network interfaces when run in a Xen PV guest. With nothing set in atalkd.conf, it reports : eth0: disabled. atalkd: zero interfaces, exiting. Adding eth0 to atalkd.conf results in : eth0: Invalid argument Can't configure multicast. eth0: disabled. atalkd: zero interfaces, exiting. If the entire VM is moved to a physical host (ie running native with no virtualisation), then atalkd works as expected. This physical machine has a GeForce chipset and the forcedeth network driver. the only changes were to use eth1 instead of eth0, and make the system bootable with GRUB. Suggestion from netatalk maintainer is that atalkd requires multicast support - but this is not provided by Xen virtual NIC/driver. For the Xen host : Debian: Squeeze Kernel : Linux serge 2.6.32-5-xen-amd64 #1 SMP Mon Jan 16 20:48:30 UTC 2012 x86_64 GNU/Linux LibC6: 2.11.3-2 libxenstore3.0 4.0.1-4 xen-hypervisor-4.0-amd64 4.0.1-4 xen-utils-4.04.0.1-4 xen-utils-common 4.0.0-1 xenstore-utils 4.0.1-4 For the guest (DomU) Debian: Squeeze Kernel : Linux newpatsy 2.6.32-5-xen-amd64 #1 SMP Mon Jan 16 20:48:30 UTC 2012 x86_64 GNU/Linux LibC6: 2.11.3-2 -- Simon Hobson Visit http://www.magpiesnestpublishing.co.uk/ for books by acclaimed author Gladys Hobson. Novels - poetry - short stories - ideal as Christmas stocking fillers. Some available as e-books. -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
