Re: [dmaengine] [Q] jiffies value does not increase in dma_sync_wait()

[javier Martin <javier.martin@xxxxxxxxxxxxxxxxx>]

Hi Russell,

On 3 February 2012 10:10, Russell King - ARM Linux
<linux@xxxxxxxxxxxxxxxx> wrote:
> On Fri, Feb 03, 2012 at 09:37:48AM +0100, javier Martin wrote:
>> I've introduced a couple of printk() to check why this timeout is not
>> triggered and I've found that the value of jiffies does not increase
>> between loop iterations (i. e. it's like time didn't advance).
>>
>> Does anyobody know what reasons could make jiffies not being updated?
>
> Are interrupts disabled?

Apparently not but, how could I check it for sure? Is
"irqs_disabled()" suitable for that purpose?

http://lxr.linux.no/#linux+v3.2.2/include/linux/irqflags.h#L120

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Javier Martin
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