From: "Luck, Tony" <tony.luck@intel.com>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: Dan Williams <dan.j.williams@intel.com>,
"Verma, Vishal L" <vishal.l.verma@intel.com>,
"bp@suse.de" <bp@suse.de>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-nvdimm@lists.01.org" <linux-nvdimm@ml01.01.org>,
"ross.zwisler@linux.intel.com" <ross.zwisler@linux.intel.com>,
"x86@kernel.org" <x86@kernel.org>
Subject: Re: [RFC PATCH] x86, mce: change the mce notifier to 'blocking' from 'atomic'
Date: Wed, 12 Apr 2017 14:19:32 -0700 [thread overview]
Message-ID: <20170412211931.GA15771@intel.com> (raw)
In-Reply-To: <alpine.DEB.2.20.1704122259490.2548@nanos>
On Wed, Apr 12, 2017 at 11:12:21PM +0200, Thomas Gleixner wrote:
> There is another solution:
>
> Convert the notifier to a blocking notifier and in the panic case, ignore
> the locking and invoke the notifier chain directly. That needs some minimal
> surgery in the notifier code to allow that, but that's certainly less ugly
> than splitting stuff up into two chains.
But I wonder whether we actually want two chains. We've been adding a bunch
of general run-time logging and recovery stuff to this chain. So now we have
things there that aren't needed or useful in the panic case. E.g.
srao_decode_notifier() (which tries to offline a page that reported an
uncorrected error out of the execution path) and Boris's new CEC code.
-Tony
next prev parent reply other threads:[~2017-04-12 21:19 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-11 22:44 [RFC PATCH] x86, mce: change the mce notifier to 'blocking' from 'atomic' Vishal Verma
2017-04-12 9:14 ` Borislav Petkov
2017-04-12 19:59 ` Vishal Verma
2017-04-12 20:22 ` Borislav Petkov
2017-04-12 20:27 ` Verma, Vishal L
2017-04-12 20:52 ` Luck, Tony
2017-04-12 20:55 ` Dan Williams
2017-04-12 21:12 ` Thomas Gleixner
2017-04-12 21:19 ` Luck, Tony [this message]
2017-04-12 21:47 ` Borislav Petkov
2017-04-12 22:16 ` Borislav Petkov
2017-04-12 22:26 ` Luck, Tony
2017-04-12 22:29 ` Borislav Petkov
2017-04-13 11:31 ` Borislav Petkov
2017-04-13 12:12 ` Borislav Petkov
2017-04-18 16:28 ` Luck, Tony
2017-04-21 21:39 ` Verma, Vishal L
2017-04-12 21:13 ` Borislav Petkov
2017-04-12 21:50 ` Thomas Gleixner
2017-04-12 22:42 ` Paul E. McKenney
2017-04-12 23:45 ` Paul E. McKenney
2017-04-13 14:34 ` Paul E. McKenney
2017-04-18 20:27 ` [tip:ras/urgent] x86/mce: Make the MCE notifier a blocking one tip-bot for Vishal Verma
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