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From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
To: Richie <listmail@triad.rr.com>
Cc: Samuel Thibault <samuel.thibault@ens-lyon.org>,
	xen-devel@lists.xensource.com, Bruce Edge <bruce.edge@gmail.com>
Subject: Re: pv-grub boot hangs when iommu=soft. Booting kernel directly with the flags works
Date: Fri, 9 Jul 2010 09:57:39 -0400	[thread overview]
Message-ID: <20100709135739.GB5302@phenom.dumpdata.com> (raw)
In-Reply-To: <4C3358AF.3070406@triad.rr.com>

On Tue, Jul 06, 2010 at 12:24:15PM -0400, Richie wrote:
> Are you able to pv-grub boot while specifying iommu=soft?

No.
> 
> To clarify this specific issue; the problem was that minios would
> produce an error message (see example, specifically: port 5 still
> bound!) and fail to boot the kernel.  I suspect if that if you are

I get another error, wherein Linux kernel does boot but up to
initializing the SWIOTLB, and then it crashes due to Xen not allowing
SWIOTLB to swizzle the pages. This is what Xen says:

(XEN) mm.c:3847:d10 Bad page 00000000001beab4: ed=ffff830151210000(10), 
sd=ffff830151210000, caf=8000000000000002, taf=7400000000000001

Also experienced by another user:
http://lists.xensource.com/archives/html/xen-devel/2010-04/msg00847.html

Haven't dug deeper in the hypervisor to figure out the caf/taf business.

  parent reply	other threads:[~2010-07-09 13:57 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-04-05 22:03 pv-grub boot hangs when iommu=soft. Booting kernel directly with the flags works listmail
2010-04-05 22:18 ` Konrad Rzeszutek Wilk
2010-04-06  0:25   ` Samuel Thibault
2010-04-07 16:24     ` Konrad Rzeszutek Wilk
2010-04-07 16:33       ` Samuel Thibault
2010-04-07 16:53         ` listmail
2010-04-07 16:57           ` Samuel Thibault
2010-07-06 16:06             ` Bruce Edge
2010-07-06 16:24               ` Richie
2010-07-06 18:54                 ` Bruce Edge
2010-07-09 13:57                 ` Konrad Rzeszutek Wilk [this message]
2010-07-06 16:42               ` pv-grub boot hangs when iommu=soft. Booting kernel directly with the flags works. MiniOS screws around with page flags Konrad Rzeszutek Wilk
2010-07-06 21:36                 ` Richie
2010-07-07 13:25                   ` Konrad Rzeszutek Wilk

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