Re: [Xen-devel] ARM: EXYNOS 5410 - DOM0 not being scheduled

[Julien Grall <julien.grall@xxxxxxxxxx>]

Hello Suriyan,

On 03/17/2014 01:17 PM, Suriyan Ramasami wrote:
> On Sun, Mar 16, 2014 at 1:31 PM, Julien Grall <julien.grall@xxxxxxxxxx> wrote:
>> Can you post the modification you made? (at least where does the print come
>> from).
> The boot_count print is coming from a mod in xen/arch/arm/time.c in
> function init_xen_time()
> - printk("boot_count: %llu reread: %llu\n", boot_count,
> READ_SYSREG64(CNTPCT_EL0));
> just before the function returns. The timer is started up in u-boot.
> All the other printfs that you see with "Calling" is at the start of
> the fucntions - I was trying to figure out if xen was hanging - this
> is not the case though.
> 
> I shall reply further on Ian's email where I do see dom0 hanging in
> calibrate_delay(). If I pass lpj=4464640 in the kernel parameters, it
> then loops in do_xor_speed() - specifically in the line while ((now =
> jiffies) == j), which points to jiffies not getting incremented at
> all!

I remembered to have the same issue with Arndale a while ago. Which
kernel are you using? Can you give the dom0 log?

Regards,

-- 
Julien Grall

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