linux-kernel - Re: vmalloced stacks on x86

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Message-ID: <544B0D22.2070509@zytor.com>
Date:	Fri, 24 Oct 2014 19:38:26 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Andy Lutomirski <luto@...capital.net>, X86 ML <x86@...nel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: vmalloced stacks on x86_64?

On 10/24/2014 05:22 PM, Andy Lutomirski wrote:
> Is there any good reason not to use vmalloc for x86_64 stacks?

Additional TLB pressure if anything else.

Now, on the flipside: what is the *benefit*?

	-hpa

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