| |
|
 |
|
 |
|
|
|
| |
|
|
xen-users
Re: [Xen-users] PCI-passthru Infiniband card panics the domU at startup
On 28/06/2011 13:12, Yan Zhai wrote:
Dear sir,
we are setting up a Xen-based computing environment, but one
problem frustrated us: we can not use our Qlogic Infiniband network
adapter in HVM mode, the domU kernel panic at the point of starting
udev. I don't know what is wrong but actually I even have not
installed the infiniband drivers when it panic, should a passthru
device cause this?
The Linux kernel comes with Infiniband drivers. Just because you haven't
installed OFED doesn't mean you don't have drivers talking to the card.
You could try blacklisting/mv'ing them to make sure they aren't loaded
at all. Make sure they're not in the initrd either.
Also, compile your kernel with debug options. Maybe a serial link
debugger. See what happens. "I have a kernel panic" is pretty useless if
you're looking for help. What Xen version do you run ? Which HCA model
do you have ? What PCI chipset ? Have you tried in PV mode ?
Xen hypervisor we used is the package along with Debian 6.0,
with kernel version 2.6.32 patched with Xen source, and I started with
'iommu=1' argument. DomU OS is RHEL6, which boots and works all right
without Infiniband card assigned. The logs, pci information and dom0
dmesg are contained in attachment (So long to paste them here).
I had problems with Mellanox Infiniband cards last year. Basically, the
drivers did not map PCI memory the way it should be mapped in Xen.
So can you give us some suggestions on how to activate the
Infiniband card? Or do you know whether this kind of devices can be
supported in domU?
Ask Qlogic. They'll tell you if they support Xen. If they don't, you'll
need to get into kernel debugging or find someone who can do it for you.
--
Vivien Bernet-Rollande
Systems& Networking Engineer
Alter Way Hosting
_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-users
|
|
|
| |
|
Home