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[Xen-users] Re: 2.6.31.1 xen and infiniband uverbs




On Thu, 8 Oct 2009, Nathan Stratton wrote:

If I build 2.6.31.1 using latest git add just add infiniband I am able to use infiniband uverbs without any issues. If I turn on XEN with dom0 in the config and run that kernel infiniband uverbs does not pass data, ibv_rc_pingpong just sits there.

Any ideas? Anyone get infiniband and xen working in a kernel? I talked to the QFED guys and they say that since infiniband works in the 2.6.31.1 kernel just fine that I have to talk to the xen guys. :(

Interesting, the same kernel works if I load it without xen.

Working Infiniband:
title Fedora (2.6.31.1)
        root (hd0,0)
        kernel /boot/vmlinuz-2.6.31.1 ro 
root=UUID=b770a383-39e0-48c5-91f5-6c0630f42410 rhgb quiet
        initrd /boot/initrd-2.6.31.1.img

Broken Infiniband:
title Fedora (2.6.31.1)
        root (hd0,0)
        kernel /boot/xen-3.4.1.gz
        module /boot/vmlinuz-2.6.31.1 ro 
root=UUID=b770a383-39e0-48c5-91f5-6c0630f42410 rhgb quiet
        module /boot/initrd-2.6.31.1.img


<>
Nathan Stratton                                CTO, BlinkMind, Inc.
nathan at robotics.net                         nathan at blinkmind.com
http://www.robotics.net                        http://www.blinkmind.com

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