Re: Xen paravirt frontend block hang

[Christopher S. Aker]

Jeremy Fitzhardinge wrote:
> I've been running this all night without seeing any problem.  I'm using 
> current x86.git#testing with a few local patches, but nothing especially 
> relevent-looking.

Meh .. what backend are you using?  We're using LVM volumes exported 
directly into the domUs like so:

disk =[ 'phy:vg1/xencaker-56392,xvda,w', ... ]

> Could you try the attached patch to see if it makes any difference?

Unfortunately we're still in the same place... pv_ops kernels are still 
hanging after heavy disk IO:

works - 2.6.18.x (from xen-unstable)
hangs - 2.6.25-rc3-git3
hangs - 2.6.25-rc3-git3 + your patch

Any other suggestions or debugging I can provide that would be useful to 
squash this?

-Chris

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