From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
To: M A Young <m.a.young@durham.ac.uk>
Cc: xen-devel@lists.xensource.com
Subject: Re: Slow boot with 2.6.37-rc4
Date: Fri, 3 Dec 2010 18:11:51 -0500 [thread overview]
Message-ID: <20101203231151.GA12689@dumpdata.com> (raw)
In-Reply-To: <alpine.LFD.2.00.1012032215560.3543@vega2.dur.ac.uk>
On Fri, Dec 03, 2010 at 10:20:55PM +0000, M A Young wrote:
> On Fri, 3 Dec 2010, Konrad Rzeszutek Wilk wrote:
>
> >Can you pass in pci=nomsi on the Linux kernel line just to see if it is
> >indeed MSI (or vector) related.
>
> I still see the delay with pci=nomsi. The dmseg output from that
> boot is attached.
It still looks to be using MSIs.. Maybe the command line parameter is wrong?
>
> >And also under the Xen hypervisor serial line print out the PCI MSI irq and IRQ vectors
> >values? Don't remember the debug keys - but the point is to see if for your AHCI controller:
> >0000:00:1f.2 and 0000:00:1f.1, there is an MSI vector allocated for it.
>
> I tried various xm debug-keys (M,Q,i and z) on a boot without
> pci=nomsi. The output of xm dmesg afterwards is attached.
Try it also on Xen line, thought I am not sure what the arguments
for disabling MSI in the hypervisor are.
next prev parent reply other threads:[~2010-12-03 23:11 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-11-30 23:59 Slow boot with 2.6.37-rc4 M A Young
2010-12-01 8:31 ` Jeremy Fitzhardinge
2010-12-01 20:15 ` M A Young
2010-12-01 15:17 ` Konrad Rzeszutek Wilk
2010-12-01 19:15 ` M A Young
2010-12-03 20:06 ` Konrad Rzeszutek Wilk
2010-12-03 22:20 ` M A Young
2010-12-03 23:11 ` Konrad Rzeszutek Wilk [this message]
2010-12-08 22:12 ` M A Young
2010-12-08 22:50 ` M A Young
2010-12-09 1:22 ` Konrad Rzeszutek Wilk
2010-12-14 17:02 ` Konrad Rzeszutek Wilk
2010-12-15 0:47 ` M A Young
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