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From: Borislav Petkov <bp@alien8.de>
To: "Luck, Tony" <tony.luck@intel.com>
Cc: Russ Anderson <rja@hpe.com>,
	Mauro Carvalho Chehab <mchehab+samsung@kernel.org>,
	Greg KH <gregkh@linuxfoundation.org>,
	Justin Ernst <justin.ernst@hpe.com>,
	russ.anderson@hpe.com, Mauro Carvalho Chehab <mchehab@kernel.org>,
	linux-edac@vger.kernel.org, linux-kernel@vger.kernel.org,
	Aristeu Rozanski Filho <arozansk@redhat.com>
Subject: Re: [PATCH] Raise maximum number of memory controllers
Date: Thu, 27 Sep 2018 06:52:44 +0200	[thread overview]
Message-ID: <20180927045244.GA30912@zn.tnic> (raw)
In-Reply-To: <20180926230257.GA5666@agluck-desk>

On Wed, Sep 26, 2018 at 04:02:57PM -0700, Luck, Tony wrote:
> We don't have stats, nor control of power on a per memory controller
> or per dimm basis. So all these files are just noise.

Yeah, and also, looking at your previous mail, stuff like:

/sys/bus/mc6/devices/dimm0
/sys/bus/mc4/devices/dimm0

doesn't make any sense: why is mc* directly under bus? It should be
under ...bus/edac/mc/...

We'll have to clean it up carefully, when there's time.

> But ... we are at -rc5. Not sure that we'll figure out, write, test & debug
> the proper solution in the next 3-4 weeks. So perhaps we should apply
> 
> -#define EDAC_MAX_MCS   16
> +#define EDAC_MAX_MCS   64
> 
> as a temporary band-aid to get HPE's 32-socket machine running while
> we work on the proper fix?

Yeah, after sleeping on it I see it the same way - band-aid it now and
clean it up properly later.

Thx.

-- 
Regards/Gruss,
    Boris.

Good mailing practices for 400: avoid top-posting and trim the reply.

WARNING: multiple messages have this Message-ID (diff)
From: Borislav Petkov <bp@alien8.de>
To: "Luck, Tony" <tony.luck@intel.com>
Cc: Russ Anderson <rja@hpe.com>,
	Mauro Carvalho Chehab <mchehab+samsung@kernel.org>,
	Greg KH <gregkh@linuxfoundation.org>,
	Justin Ernst <justin.ernst@hpe.com>,
	russ.anderson@hpe.com, Mauro Carvalho Chehab <mchehab@kernel.org>,
	linux-edac@vger.kernel.org, linux-kernel@vger.kernel.org,
	Aristeu Rozanski Filho <arozansk@redhat.com>
Subject: Raise maximum number of memory controllers
Date: Thu, 27 Sep 2018 06:52:44 +0200	[thread overview]
Message-ID: <20180927045244.GA30912@zn.tnic> (raw)

On Wed, Sep 26, 2018 at 04:02:57PM -0700, Luck, Tony wrote:
> We don't have stats, nor control of power on a per memory controller
> or per dimm basis. So all these files are just noise.

Yeah, and also, looking at your previous mail, stuff like:

/sys/bus/mc6/devices/dimm0
/sys/bus/mc4/devices/dimm0

doesn't make any sense: why is mc* directly under bus? It should be
under ...bus/edac/mc/...

We'll have to clean it up carefully, when there's time.

> But ... we are at -rc5. Not sure that we'll figure out, write, test & debug
> the proper solution in the next 3-4 weeks. So perhaps we should apply
> 
> -#define EDAC_MAX_MCS   16
> +#define EDAC_MAX_MCS   64
> 
> as a temporary band-aid to get HPE's 32-socket machine running while
> we work on the proper fix?

Yeah, after sleeping on it I see it the same way - band-aid it now and
clean it up properly later.

Thx.

  reply	other threads:[~2018-09-27  4:52 UTC|newest]

Thread overview: 56+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-09-25 14:34 [PATCH] Raise maximum number of memory controllers Justin Ernst
2018-09-25 14:34 ` Justin Ernst
2018-09-25 15:26 ` [PATCH] " Borislav Petkov
2018-09-25 15:26   ` Borislav Petkov
2018-09-25 17:50   ` [PATCH] " Luck, Tony
2018-09-25 17:50     ` Luck, Tony
2018-09-25 18:07     ` [PATCH] " Borislav Petkov
2018-09-25 18:07       ` Borislav Petkov
2018-09-26  9:35       ` [PATCH] " Borislav Petkov
2018-09-26  9:35         ` Borislav Petkov
2018-09-26 15:27         ` [PATCH] " Borislav Petkov
2018-09-26 15:27           ` Borislav Petkov
2018-09-26 16:03           ` [PATCH] " Mauro Carvalho Chehab
2018-09-26 16:03             ` Mauro Carvalho Chehab
2018-09-26 16:17             ` [PATCH] " Borislav Petkov
2018-09-26 16:17               ` Borislav Petkov
2018-09-26 17:39               ` [PATCH] " Mauro Carvalho Chehab
2018-09-26 17:39                 ` Mauro Carvalho Chehab
2018-09-26 18:10               ` [PATCH] " Luck, Tony
2018-09-26 18:10                 ` Luck, Tony
2018-09-26 18:23                 ` [PATCH] " Russ Anderson
2018-09-26 18:23                   ` Russ Anderson
2018-09-26 23:02                   ` [PATCH] " Luck, Tony
2018-09-26 23:02                     ` Luck, Tony
2018-09-27  4:52                     ` Borislav Petkov [this message]
2018-09-27  4:52                       ` Borislav Petkov
2018-09-27 21:44                       ` [PATCH] " Luck, Tony
2018-09-27 21:44                         ` Luck, Tony
2018-09-27 22:03                         ` [PATCH] " Borislav Petkov
2018-09-27 22:03                           ` Borislav Petkov
2018-09-28  1:10                           ` [PATCH] " Mauro Carvalho Chehab
2018-09-28  1:10                             ` Mauro Carvalho Chehab
2018-10-01 12:47                             ` [PATCH] " Borislav Petkov
2018-10-01 12:47                               ` Borislav Petkov
2018-10-01 22:43                               ` [PATCH] EDAC: Don't add devices under /sys/bus/edac Luck, Tony
2018-10-01 22:43                                 ` Luck, Tony
2018-10-02  1:22                                 ` [PATCH] " Mauro Carvalho Chehab
2018-10-02  1:22                                   ` Mauro Carvalho Chehab
2018-10-02 15:51                                   ` [PATCH] " Ernst, Justin
2018-10-02 15:51                                     ` Justin Ernst
2018-10-02 16:26                                     ` [PATCH] " Borislav Petkov
2018-10-02 16:26                                       ` Borislav Petkov
2018-11-06 14:45                                       ` [PATCH] " Borislav Petkov
2018-11-06 14:45                                         ` Borislav Petkov
2018-11-13 19:09                                         ` [PATCH] " Ernst, Justin
2018-11-13 19:09                                           ` Justin Ernst
2018-11-13 19:15                                           ` [PATCH] " Borislav Petkov
2018-11-13 19:15                                             ` Borislav Petkov
2018-09-26  7:55 ` [PATCH] Raise maximum number of memory controllers Zhuo, Qiuxu
2018-09-26  7:55   ` Qiuxu Zhuo
2018-09-26 13:53   ` [PATCH] " Russ Anderson
2018-09-26 13:53     ` Russ Anderson
2018-09-26 16:13 ` [PATCH] " Aristeu Rozanski
2018-09-26 16:13   ` Aristeu Rozanski
2018-09-27  5:56 ` [PATCH] " Borislav Petkov
2018-09-27  5:56   ` Borislav Petkov

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