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

From: javier Martin
Date: Fri Feb 03 2012 - 04:22:05 EST

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?

Javier Martin
Vista Silicon S.L.
CDTUC - FASE C - Oficina S-345
Avda de los Castros s/n
39005- Santander. Cantabria. Spain
+34 942 25 32 60
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