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From: Anju T Sudhakar <anju@linux.vnet.ibm.com>
To: Qian Cai <cai@lca.pw>
Cc: linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org,
	"Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com>
Subject: Re: power9 NUMA crash while reading debugfs imc_cmd
Date: Fri, 28 Jun 2019 17:19:47 +0530	[thread overview]
Message-ID: <9c87dc72-54f8-8510-c400-1e89779cc88b@linux.vnet.ibm.com> (raw)
In-Reply-To: <715A934D-EE3A-478B-BA77-589C539FC52D@lca.pw>


On 6/28/19 9:04 AM, Qian Cai wrote:
>
>> On Jun 27, 2019, at 11:12 PM, Michael Ellerman <mpe@ellerman.id.au> wrote:
>>
>> Qian Cai <cai@lca.pw> writes:
>>> Read of debugfs imc_cmd file for a memory-less node will trigger a crash below
>>> on this power9 machine which has the following NUMA layout.
>> What type of machine is it?
> description: PowerNV
> product: 8335-GTH (ibm,witherspoon)
> vendor: IBM
> width: 64 bits
> capabilities: smp powernv opal


Hi Qian Cai,

Could you please try with this patch: 
https://lists.ozlabs.org/pipermail/linuxppc-dev/2019-June/192803.html

and see if the issue is resolved?


Thanks,

Anju



  reply	other threads:[~2019-06-28 11:51 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-06-27 21:21 power9 NUMA crash while reading debugfs imc_cmd Qian Cai
2019-06-28  3:12 ` Michael Ellerman
2019-06-28  3:34   ` Qian Cai
2019-06-28 11:49     ` Anju T Sudhakar [this message]
2019-06-28 13:00       ` Qian Cai
2019-06-29 11:22         ` Michael Ellerman

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