linux-kernel - Re: CPU hotplug broken with 2GB VMSPLIT

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Message-ID: <20061130164800.GA1860@elf.ucw.cz>
Date:	Thu, 30 Nov 2006 17:48:00 +0100
From:	Pavel Machek <pavel@....cz>
To:	Nathan Lynch <ntl@...ox.com>
Cc:	Jens Axboe <jens.axboe@...cle.com>, linux-kernel@...r.kernel.org,
	akpm@...l.org, bryce@...l.org
Subject: Re: CPU hotplug broken with 2GB VMSPLIT

Hi!

> > Some more clues - booting with noreplacement doesn't fix it, so I think
> > the alternatives code is off the hook.
> 
> I don't think this adds any new information, but it has been open
> awhile:
> 
> http://bugme.osdl.org/show_bug.cgi?id=6542
> 
> I was able to narrow it down to the vmsplit setting but I wasn't able
> to debug it further.

Can we at least add error return or something? Or make CPU_HOTPLUG
depend on "normal" VM split, or...? Having s2ram breaking for known
problem is annoying...
								Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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