[v2 PATCH 0/5] powerpc/pseries: Machien check handler improvements.

Mahesh Jagannath Salgaonkar mahesh at linux.vnet.ibm.com
Fri Jun 8 02:32:58 AEST 2018


On 06/07/2018 04:15 PM, Nicholas Piggin wrote:
> On Thu, 07 Jun 2018 15:36:25 +0530
> Mahesh J Salgaonkar <mahesh at linux.vnet.ibm.com> wrote:
> 
>> This patch series includes some improvement to Machine check handler
>> for pseries. Patch 1 fixes an issue where machine check handler crashes
>> kernel while accessing vmalloc-ed buffer while in nmi context.
>> Patch 3 dumps the SLB contents on SLB MCE errors to improve the debugability.
>> Patch 4 display's the MCE error details on console.
>>
>> Change in V2:
>> - patch 4: Display additional info (NIP and task info) in MCE error details.
>> - patch 5: Fix endain bug while restoring of r3 in MCE handler.
>>
>> ---
>>
>> Mahesh Salgaonkar (5):
>>       powerpc/pseries: convert rtas_log_buf to linear allocation.
>>       powerpc/pseries: Define MCE error event section.
>>       powerpc/pseries: Dump and flush SLB contents on SLB MCE errors.
>>       powerpc/pseries: Display machine check error details.
>>       powerpc/pseries: Fix endainness while restoring of r3 in MCE handler.
> 
> These look good, should patch 5 be moved to patch 2 and the first 2
> patches marked for stable?

Yup. Will move patch 5 to 2nd position.

> 
> Do you also plan to dump SLB contents for bare metal MCEs?

Yes. That's the plan. Will do that separately.

Thanks,
-Mahesh.



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