linux-kernel - Re: [patch 0/9] x86, xsave: xsave/xrstor support

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Message-ID: <20080731223629.GT23938@one.firstfloor.org>
Date:	Fri, 1 Aug 2008 00:36:29 +0200
From:	Andi Kleen <andi@...stfloor.org>
To:	Suresh Siddha <suresh.b.siddha@...el.com>
Cc:	Andi Kleen <andi@...stfloor.org>, Ingo Molnar <mingo@...e.hu>,
	"H. Peter Anvin" <hpa@...or.com>,
	"tglx@...utronix.de" <tglx@...utronix.de>,
	"torvalds@...ux-foundation.org" <torvalds@...ux-foundation.org>,
	"akpm@...ux-foundation.org" <akpm@...ux-foundation.org>,
	"arjan@...ux.intel.com" <arjan@...ux.intel.com>,
	"roland@...hat.com" <roland@...hat.com>,
	"drepper@...hat.com" <drepper@...hat.com>,
	"mikpe@...uu.se" <mikpe@...uu.se>,
	"chrisw@...s-sol.org" <chrisw@...s-sol.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	wim@...ana.be
Subject: Re: [patch 0/9] x86, xsave: xsave/xrstor support

On Thu, Jul 31, 2008 at 03:19:24PM -0700, Suresh Siddha wrote:
> On Thu, Jul 31, 2008 at 03:14:35PM -0700, Andi Kleen wrote:
> > > Kernel was enabling watchdog, with out the userspace having the
> > > heartbeat daemon....
> > 
> > Watchdog are  normally only armed when someone opens the device
> > first.
> 
> But thats not what I see with for ex with, w83627hf_wdt.c
> 
> Its done at the module_init time. (while I thought it should be
> really done when some user level app opens the device, probably
> its poorly written to take care if the kernel panics before starting userland.
> but kernel can even die before the watchdog driver load aswell ;-)

Ok that watchdog driver is just broken then. Putting the watchdog maintainer
into cc.

-Andi
> 
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