On Fri, Feb 03, 2012 at 02:43:15PM +0400, Sergey A. Pechiony wrote:
> I have a problem with network interfaces after installing Xen.
> 
>  
> 
> [root@dom0 ~]# uname -r 
> 3.2.2-1.fc16.i686.PAE
> 
>  
> 
> [root@dom0 ~]# yum list | grep xen-hyper
> 
> xen-hypervisor.i686                      4.1.2-2.fc16
> @updates
> 
>  
> 
> With default kernel system works perfectly. But after booting with xen
> kernel 
> 
>  
> 
> # dmesg | grep eth 
> [   15.860121] e100 0000:00:04.0: eth0: addr 0xfeafe000, irq 9, MAC addr
> 00:e0:81:21:53:96 
> [   15.884513] e100 0000:00:05.0: eth1: addr 0xfeafd000, irq 5, MAC addr
> 00:e0:81:21:53:97 
> [   18.506585] udevd[458]: renamed network interface eth1 to em2 
> [   18.568406] udevd[457]: renamed network interface eth0 to em1 
> 
> # lsmod | grep e100 
> e100                   36014  0. 
> mii                    13311  1 e100 
> 
>  
> 
> # lspci | grep Ethernet
> 
> 00:04.0 Ethernet controller: Intel Corporation 82557/8/9/0/1 Ethernet Pro
> 100 (rev 08)
> 
> 00:05.0 Ethernet controller: Intel Corporation 82557/8/9/0/1 Ethernet Pro
> 100 (rev 08)
> 
> # /etc/init.d/network status 
> Configured devices: 
> lo em1 em2 
> Currently active devices: 
> lo 
> 
> # ifup em1 
> RTNETLINK answers: Function not implemented 
> ERROR    : [/etc/sysconfig/network-scripts/ifup-eth] Failed to bring up em1.
> 
> 
> # ifconfig em1 
> em1       Link encap:Ethernet  HWaddr 00:E0:81:21:53:97.. 
>            inet addr:192.168.129.16  Bcast:192.168.131.255
> Mask:255.255.252.0 
>           BROADCAST MULTICAST  MTU:1500  Metric:1 
>           RX packets:0 errors:0 dropped:0 overruns:0 frame:0 
>           TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 
>           collisions:0 txqueuelen:1000. 
>           RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b) 
> 
> # ifconfig em1 192.168.129.1 
> SIOCSIFFLAGS: Function not implemented
> 
>  
> 
> Network interface has network address but can't to bring up.
> 
> I don't understand that happens. A difference between loadings only in irq.
> 20,21 for default kernel and 5,9 for xen kernel. But 5 and 9 irq is not used
> anywhere more.

Can you attach the dmesg and proc/interrupts when run under baremetal and
when run under Xen please?


> 

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