[dmaengine] [Q] jiffies value does not increase in dma_sync_wait()
Russell King - ARM Linux
linux at arm.linux.org.uk
Fri Feb 3 04:24:56 EST 2012
On Fri, Feb 03, 2012 at 10:22:00AM +0100, javier Martin wrote:
> Hi Russell,
> On 3 February 2012 10:10, Russell King - ARM Linux
> <linux at arm.linux.org.uk> 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?
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