Re: kernel oops and panic in acpi_atomic_read under 2.6.39.3. call trace included

rick
2011-09-02T23:32:44Z

Hi Huang,

Sorry for the delay in my response. Hurricane Irene delayed our testing a
bit.

I had to switch the 5620 CPUS I had for 5670s. After 4 days of running
(it was usually about 2 before) I finally got this output in dmesg:

[337296.365930] GHES: gar accessed: 0, 0xbf7b9370
[337296.365936] ACPI atomic read mem: addr 0xbf7b9370 mapped to
ffffc90013ee8370

It is not mapped to 0 as expected, but it didn't crash now!

Thanks,
Rick

> On 08/25/2011 11:47 PM, rick@microway.com wrote:
>> Hi Huang,
>>
>> My new setup reproduced the panic. However I do not have any gar
>> accessed
>> messages on it. The gar mapped messages are in my previous email. Here
>> is the latest call trace. There is no GHES output prior to it:
>>
>
> That is wired. Can you try the patch attached? If my guessing is
> correct, there will be no panic, but something as follow will be in dmesg:
>
> ACPI atomic read mem: addr 0xxxxx mapped to 0
>
> Best Regards,
> Huang Ying
>