Re: [Xen-devel] Xen3.1 network freeze with IPMI

[Jan Michael <Jan.Michael@xxxxxxx>]

Hi Marek,

I have now a new test machine with IPMI over LAN working and XEN  
3.0.4 running. I'd like to reproduce your problems.
Could you please give a detailled description under which  
circumstances the freeze happens. Please provide any information you  
have.
Thanks,

        Jan


On 25.06.2007, at 09:50, Jan Michael wrote:
> Hi Marek,
>
> we are using IPMI with Scientific Linux CERN 4. It is built on the  
> same code base as RHES4.
> On one of the test machines has a supermicro chip and runs Xen 3.0.4.
>
> As far as I can say IPMI works fine when using the local interface  
> from within the machine. I was not able to get IPMI working over  
> the LAN interface. But I'm working on that.
> A former colleague who investigated and set up IPMI on our machines  
> also reports some problems with XEN in conjunction with IPMI:
> > For example: now I've a e4 1U machine, with debian etch (2.6.18).  
> Sometimes
> > Xen shuts down the NIC1 and I cannot reach the BMC in any way.
> > I don't know why.
>
> Did you find already find the reason causing your problems. Did you  
> try using XEN 3.0.4?
> Cheers,
>
>         Jan
>
> On 13.06.2007, at 15:12, marek cervenka wrote:
> > hi,
> >
> > i am using supermicro with remote management IPMI (http:// 
> > www.supermicro.com/manuals/other/SUPER_IPMI_2.0.ppt)
> > IPMI card has own MAC adress and IP address (but ethernet cable is  
> > shared)
> > i am using xen 3.1 from www.xensource.com (on centos5.0)
> >
> > if IPMI card is "freezed*" (cannot connect to IPMI) then xen3.1  
> > kernel(NETWORK) works fine
> > if i do "mc reset cold" from host system then NETWORK freeze (but  
> > IPMI works)
> > i can connect with IPMI to the system. dmesg,messages,ifconfig all  
> > looks ok
> > but network do not work. /etc/init.d/network restart does not  
> > help, i must restart whole server
> > ping from this machine ends with
> > PING <other ip>  56(84) bytes of data.
> > > From <server ip> icmp_seq=0 Destination Host Unreachable
> > this is strange
> >
> > server without IPMI works fine. server with IPMI without XEN  
> > kernel works fine. (IPMI does not like XEN and backward)
> > do you have idea what is the problem?
> >
> > * IPMI card sometimes freeze and is unreachable. it must be  
> > restarted :(
> > ---------------------------------------
> > Marek Cervenka
> > =======================================
> >
> >
> > _______________________________________________
> > Xen-devel mailing list
> > Xen-devel@xxxxxxxxxxxxxxxxxxx
> > http://lists.xensource.com/xen-devel
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