From: Ingo Molnar <mingo@kernel.org>
To: Andy Lutomirski <luto@amacapital.net>
Cc: "H. Peter Anvin" <hpa@zytor.com>, X86 ML <x86@kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Linus Torvalds <torvalds@linux-foundation.org>
Subject: Re: vmalloced stacks on x86_64?
Date: Sat, 25 Oct 2014 11:15:37 +0200 [thread overview]
Message-ID: <20141025091537.GA11433@gmail.com> (raw)
In-Reply-To: <CALCETrUmA+5499fEqp7S-nfSBVxTEo76mA9r32zYQ41E3c+YhQ@mail.gmail.com>
* Andy Lutomirski <luto@amacapital.net> wrote:
> Is there any good reason not to use vmalloc for x86_64 stacks?
In addition to what hpa mentioned, __pa()/__va() on-kstack DMA
gets tricky, for legacy drivers. (Not sure how many of these are
left though.)
Thanks,
Ingo
next prev parent reply other threads:[~2014-10-25 20:24 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-10-25 0:22 vmalloced stacks on x86_64? Andy Lutomirski
2014-10-25 2:38 ` H. Peter Anvin
2014-10-25 4:42 ` Andy Lutomirski
2014-10-26 16:46 ` Eric Dumazet
2014-10-25 9:15 ` Ingo Molnar [this message]
2014-10-25 16:05 ` Andy Lutomirski
2014-10-25 22:26 ` Richard Weinberger
2014-10-25 23:16 ` Andy Lutomirski
2014-10-25 23:31 ` Richard Weinberger
2014-10-26 18:16 ` Linus Torvalds
2014-10-26 4:11 ` Frederic Weisbecker
2014-10-26 5:49 ` Andy Lutomirski
2014-10-26 20:29 ` Frederic Weisbecker
2014-10-27 1:12 ` Andy Lutomirski
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