linux-kernel - Re: S3 resume regression [1cf4f629d9d2 ("cpu/hotplug: Move online calls to hotplugged cpu")]

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Message-ID: <57332493.5090501@linutronix.de>
Date:	Wed, 11 May 2016 14:24:51 +0200
From:	Sebastian Andrzej Siewior <bigeasy@...utronix.de>
To:	Ville Syrjälä <ville.syrjala@...ux.intel.com>
Cc:	Thomas Gleixner <tglx@...utronix.de>, linux-arch@...r.kernel.org,
	Rik van Riel <riel@...hat.com>,
	Rafael Wysocki <rafael.j.wysocki@...el.com>,
	"Srivatsa S. Bhat" <srivatsa@....edu>,
	Peter Zijlstra <peterz@...radead.org>,
	Arjan van de Ven <arjan@...ux.intel.com>,
	Rusty Russell <rusty@...tcorp.com.au>,
	Steven Rostedt <rostedt@...dmis.org>,
	Oleg Nesterov <oleg@...hat.com>, Tejun Heo <tj@...nel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Paul McKenney <paulmck@...ux.vnet.ibm.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Paul Turner <pjt@...gle.com>, linux-kernel@...r.kernel.org,
	rui.zhang@...el.com, len.brown@...el.com
Subject: Re: S3 resume regression [1cf4f629d9d2 ("cpu/hotplug: Move online
 calls to hotplugged cpu")]

On 05/11/2016 02:21 PM, Ville Syrjälä wrote:
> Yeah can't get anything from the machine at that point. netconsole
> didn't help either, and no serial on this machine. And IIRC I've
> tried ramoops on this thing in the past but unfortunately the memory
> got cleared on reboot.

efi + pstore maybe?

Sebastian