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Re: [Xen-devel] Hugepage support

To: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
Subject: Re: [Xen-devel] Hugepage support
From: Keshav Darak <keshav_darak@xxxxxxxxx>
Date: Mon, 10 Jan 2011 11:32:51 -0800 (PST)
Cc: xen-devel@xxxxxxxxxxxxxxxxxxx, Ashwin Vasani <vasani.ashwin@xxxxxxxxx>
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--- On Mon, 1/10/11, Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx> wrote:

From: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
Subject: Re: [Xen-devel] Hugepage support
To: "Keshav Darak" <keshav_darak@xxxxxxxxx>
Cc: xen-devel@xxxxxxxxxxxxxxxxxxx, "Ashwin Vasani" <vasani.ashwin@xxxxxxxxx>
Date: Monday, January 10, 2011, 6:36 PM

On Mon, Jan 10, 2011 at 10:12:01AM -0800, Keshav Darak wrote:
> I am using DOM0 as jermey kernel. Fedora x86_64 ( as PV guest.
> In DOM0 kernel  when I requested hugepage, kernel didnt crashed but terminal got hanged.

Was there any output in the serial log? Is the Xen hypervisor still running? Were
you able to use Alt-SysRq to see what hte Linux kernel was doing? Did you test this
on baremetal and did it work there?

I just copied the output from the DOMU terminal and yes hypervisor was still running. DOMU crashed when written something on hugepages from C-Code (attached with the previous mail) but for the same code in DOM0, terminal hangs up.

> Initially this was the status for hugepage
> #cat /proc/meminfo | grep Huge
> HugePages_Total:         10
> HugePages_Free:         10
> HugePages_Rsvd:         0
> HugePages_Surp:         2048

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