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I haven't see this oops before, but I think the code in question
correlates to:
bret = RING_GET_RESPONSE(&info->ring, i);
id = bret->id;
req = (struct request *)info->shadow[id].request;
which suggests the backend driver is passing back a bogus request ID.
What's your host environment?
J
--
I believe it's a 64 bit Etch kernel running on a Lenny domain 0. I
wonder if that kernel doesn't write the protocol field in xenstore so
the 64 bit backend Sally-Anne is using cannot talk to the 32 bit
frontend correctly.
Sally, can you run xenstore-ls on the domain's path
(/local/domain/<domid>). Is there a protocol field in the vbd entry?
If not can you try starting the domain in the paused state (xm create
-p) and use xenstore-write to fill in the protocol node in the frontend
to "x86_32-abi". e.g.
xenstore write /local/domain/<domid>/device/vbd/<nr>/protocol x86_3=
2-abi
before unpausing.
I thought the tools did this (so expected the Lenny tools to be correct)
but looking at the code it seems it is the domain 0 kernel which does
it.
Ian.
--=20
Ian Campbell
Success is getting what you want; happiness is wanting what you get.
Uh, I'm thinking backwards here. It's the frontend which writes it but the backend needs to understand it which the Etch kernel does not. Unfortunately this means that writing the protocol node as I suggest won't work. Only thing I can recommend at the moment is to use a kernel which does have this (i.e. one from http://xenbits.xensource.com/linux-2.6.18-xen.hg) or to use a 32 bit Etch kernel if you want to run 32 bit guests. Ian. --=20 Ian Campbell If life isn't what you wanted, have you asked for anything else?
Should we push that patch back into stable kernels?
J
--
The pvops kernel frontend already does the right thing. I'll look into what it would take to get the support added to the backends in Etch. Ian. --=20 Ian Campbell Matrimony isn't a word, it's a sentence.
Or run a 64-bit domU kernel? Should work fine with a 32-bit userspace.
J
--
Unfortunately Debian has settled on 2.6.26 for the Lenny release so no 64 bit support. Ian. --=20 Ian Campbell Look, we play the Star Spangled Banner before every game. You want us to pay income taxes, too? -- Bill Veeck, Chicago White Sox
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