Re: [Xen-devel] 2.6.30 dom0 Xen patches

[Boris Derzhavets <bderzhavets@xxxxxxxxx>]

Sorry, i've got your point - just one more *.patch1 file.
That's it.

Thanks.
Boris.

--- On Fri, 7/17/09, Pasi Kärkkäinen <pasik@xxxxxx> wrote:

From: Pasi Kärkkäinen <pasik@xxxxxx>
Subject: Re: [Xen-devel] 2.6.30 dom0 Xen patches
To: "Boris Derzhavets" <bderzhavets@xxxxxxxxx>
Cc: "Andrew Lyon" <andrew.lyon@xxxxxxxxx>, "Xen-devel" <xen-devel@xxxxxxxxxxxxxxxxxxx>, "Kris Shannon" <kris@xxxxxxxxxxxxx>
Date: Friday, July 17, 2009, 6:06 AM

On Fri, Jul 17, 2009 at 12:11:18AM -0700, Boris Derzhavets wrote:
>
> I  made two replacements
> CONFIG_SPARSE_IRQ by CONFIG_GENERIC_HARDIRQS.
>
> ****************************************************
> In 60035_xen3-patch-2.6.29.patch1 line 11568
> ****************************************************
> +#ifdef CONFIG_SPARSE_IRQ
> + irq_to_desc(irq)->kstat_irqs[cpu] = 0;
> +#else
> kstat_cpu(cpu).irqs[irq] = 0;
> ****************************************************
> In 60036_xen3-patch-2.6.30.patch1 line 18283
> ****************************************************
> +#ifdef CONFIG_SPARSE_IRQ
> +int __init arch_probe_nr_irqs(void)
> +{
> + int nr;
> +
> + if (nr_irqs > (NR_VECTORS * nr_cpu_ids))
> + nr_irqs = NR_VECTORS * nr_cpu_ids;
>
> To fix this issue. But, i don't know how to rebuild Andy's patch set
> based on your commit.
>
> Boris.
> P.S.  I haven't heard from Andy for a while.
>

Boris: Just generate a new (additional) patch that fixes the problem with
CONFIG_SPARSE_IRQ. Much easier for other people to apply it then, and get it
right.. also no need to explain many times what to change and where..

-- Pasi

> --- On Thu, 7/16/09, Kris Shannon <kris@xxxxxxxxxxxxx> wrote:
>
> From: Kris Shannon <kris@xxxxxxxxxxxxx>
> Subject: Re: [Xen-devel] 2.6.30 dom0 Xen patches
> To: "Andrew Lyon" <andrew.lyon@xxxxxxxxx>
> Cc: "Xen-devel" <xen-devel@xxxxxxxxxxxxxxxxxxx>
> Date: Thursday, July 16, 2009, 6:56 PM
>
> 2009/7/2 Andrew Lyon <andrew.lyon@xxxxxxxxx>:
> > I have rebased the xen-patches from opensuse
> > kernel-source-2.6.30-50.1.src.rpm so that they can be applied to
> > vanilla 2.6.30, the usual patches tarball and gentoo ebuild are
> > available at http://code.google.com/p/gentoo-xen-kernel/downloads/list
> > , if you are not using Gentoo simply apply the patches in numeric
> > order.
> >
> > Some notes:
> >
> > both dom0 and domU require CONFIG_SPARSE_IRQ=y and CONFIG_HOTPLUG=y
> > 64 bit dom0/domU requires CONFIG_IA32_EMULATION=y
> >
> > Andy
>
> The error:
> drivers/xen/core/evtchn.c: In function 'unbind_from_irq':
> drivers/xen/core/evtchn.c:641: error: 'struct kernel_stat' has no
> member named 'irqs'
>
> when CONFIG_SPARSE_IRQ is not set is due to a missing #ifdef change a couple
> of lines earlier.  The commit d52a61c04c6c0814ca270a088feedb126436598e altered
> the kernel_stat.irqs dependency to CONFIG_GENERIC_HARDIRQS.
>
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>
>
>
>       
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