On 5/9/2012 2:53 AM, Rolf Eike Beer wrote:
> Vincent wrote:
>> Hi parisc folks,
>>
>> I have noticed that the mainline kernel won't boot any more on my
>> hp712/100, starting with v2.6.39. It panics in
>> flush_instruction_cache_local.
> See the mail thread "Boot error using 3.2.1: swapper (pid 1): Illegal
> instruction (code 8)" I started when I first hit this on my 705. But James
> doesn't care.
There is a fair chance that the patch posted here 
<http://www.spinics.net/lists/linux-parisc/msg04068.html>
would fix the boot issue.   However, I recently discovered a build issue 
on non SMP configurations.  Attached
is an updated version.   It applies against 3.3.4.

It has been tested extensively on rp3440.

clear_user_page does not use the tmpalias region.  I believe the problem 
with the current implementation
is that the TLB setup can be clobbered if __clear_user_page_asm is 
reentered.

Signed-off-by: John David Anglin <dave.anglin@bell.net>

Dave

-- 
John David Anglin    dave.anglin@bell.net