From mboxrd@z Thu Jan  1 00:00:00 1970
From: Andrew Cooper <andrew.cooper3@citrix.com>
Subject: Re: [PATCH] xen/arm: Fix rtds scheduler for arm
Date: Fri, 30 Jan 2015 15:56:52 +0000
Message-ID: <54CBA9C4.4070305@citrix.com>
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To: Julien Grall <julien.grall@linaro.org>, Denis Drozdov <denys.drozdov@globallogic.com>, JBeulich@suse.com, xen-devel@lists.xen.org, george.dunlap@eu.citrix.com
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On 30/01/15 15:46, Julien Grall wrote:
> Hello Denys,
>
> On 30/01/15 15:40, Denis Drozdov wrote:
>> From: denys drozdov <denys.drozdov@globallogic.com>
>>
>> Update RT scheduler to run on arm platform
> You need to give more background of the problem (i.e why you have to
> disable the IRQ on ARM).
>
> As the scheduler is common with x86, I would expect the problem is also
> happening on this architecture.

Changing a spinlock_irq into an irqsave is safe, functionally speaking,
but it is concerning that the scheduler appears to be called in
different interrupt states between architectures.

~Andrew