[Fedora-xen] Network Problem after update 3.0 -> 3.1: blkback
Mark Nielsen
mnielsen at redhat.com
Tue Dec 11 13:12:28 UTC 2007
there were some changes in how networking is done going from 5.0 to 5.1.
You may need to revisit the documentation for CentOS 5.1
kfx wrote:
> Hello,
>
> I have a big problem:
> Dom0 is centos5.1, domU are centos5.1. My setup is really simple, the
> only thing is that I give 3 nics to the domU so I use a modified
> network script (which has worked since january... since fedora 6):
> "
> #!/bin/sh
> dir=$(dirname "$0")
> "$dir/network-bridge" "$@" vifnum=0
> "$dir/network-bridge" "$@" vifnum=1
> "$dir/network-bridge" "$@" vifnum=2
> "
>
> So I have updated my xen dom0 from 3.0.3-rc5-8.1.15.el5 to
> 3.1.0-53.1.4.el5 (and kernel-xen 2.6.18-8.1.15.el5xen to
> 2.6.18-53.1.4.el5xen) and now my domU cant access the network. The
> interfaces are good in the domU, all seems to be ok but there are no
> connectivity at all (no arp entries). This message shows up on the
> dom0 each time I launch a domU:
>
> blkback: ring-ref 9, event-channel 7, protocol 1 (x86_64-abi)
>
> Do someone know what is happening ? this is very embarrassing after a
> simple upgrade... Hopefully I have another identical server (Centos
> 5.0 with 5.1 domUs) which is still in 3.0 but I cant stay not updated.
>
> Thanks for any help.
>
> xm info:
> host : host.foo.com
> release : 2.6.18-53.1.4.el5xen
> version : #1 SMP Fri Nov 30 01:21:23 EST 2007
> machine : x86_64
> nr_cpus : 4
> nr_nodes : 1
> sockets_per_node : 2
> cores_per_socket : 1
> threads_per_core : 2
> cpu_mhz : 2992
> hw_caps : bfebfbff:20100800:00000000:00000180:0000641d
> total_memory : 4095
> free_memory : 3246
> xen_major : 3
> xen_minor : 1
> xen_extra : .0-53.1.4.el5
> xen_caps : xen-3.0-x86_64 xen-3.0-x86_32p
> xen_pagesize : 4096
> platform_params : virt_start=0xffff800000000000
> xen_changeset : unavailable
> cc_compiler : gcc version 4.1.2 20070626 (Red Hat 4.1.2-14)
> cc_compile_by : mockbuild
> cc_compile_domain :
> cc_compile_date : Fri Nov 30 00:37:12 EST 2007
> xend_config_format : 2
>
>
> --
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> Fedora-xen at redhat.com
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