[PATCH] arm64: Add support for hardware updates of the access and dirty pte bits

[Marc Zyngier]

Hi Julien,

On 09/09/15 18:21, Julien Grall wrote:
> Hi Catalin,
> 
> I've tried to boot the latest linus/master (a794b4f) which include this
> patch as DOM0 on xgene. This is failing late in the boot with
> a BUG (see trace below).
> 
> The bisector pointed me to this patch. When I disable
> CONFIG_ARM64_HW_AFDBM, I'm able to boot the kernel and use it
> without any issue.
> 
> Although, I'm not sure to understand how this patch could
> possibly break the filesystem subsystem.
> 
> Do you have any insight for debugging this problem?

I've just given it a good shake on the Mustang we have here, and I'm not
experiencing anything like this. Any chance you could print out the
ID_AA64MMFR1_EL1 register value, just in case?

Thanks,

	M.
-- 
Jazz is not dead. It just smells funny...