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RE: [Xen-devel] RE: freezing when using GPLPV drivers (including Dom0)

  • To: "Tian, Kevin" <kevin.tian@xxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxx>
  • From: "James Harper" <james.harper@xxxxxxxxxxxxxxxx>
  • Date: Wed, 31 Dec 2008 14:37:12 +1100
  • Cc:
  • Delivery-date: Tue, 30 Dec 2008 19:37:49 -0800
  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>
  • Thread-index: Aclq8extx1AIvKo+Ql6WikxbNr/6rgAAnnFwAAA7aNAAAFVNQAAAjkcQ
  • Thread-topic: [Xen-devel] RE: freezing when using GPLPV drivers (including Dom0)

> >Is there a way under Linux of monitoring disk queue length? I am
> >LVM on top of a low end HP 'Smart Array' (E200) running two RAID1
> >volumes using SATA disks.
> >
> 'sar' could provide such info, IMO.

iostat shows very very low disk usage when things are frozen. I am
finding that I can type 'sync' and things will unfreeze again...
unfreezing before the sync completes. I haven't done this enough times
to know if things would have unfrozen on their own though.


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