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From: "Ulrich Weigand" <Ulrich.Weigand@de.ibm.com>
To: davidm@hpl.hp.com
Cc: Andi Kleen <ak@suse.de>, linux-kernel@vger.kernel.org
Subject: Re: [RFC] 4KB stack + irq stack for x86
Date: Thu, 6 Jun 2002 22:55:12 +0200	[thread overview]
Message-ID: <OF81A861D7.0F84A7BA-ONC1256BD0.0072344C@de.ibm.com> (raw)


David Mosberger wrote:

>Just a minor nit: for ia64 it's either 32KB (for page sizes up to
>16KB) or 64KB (for 64KB page size).  The 32KB is conservative and
>based on the assumption that there can be up to 16 nested interrupts
>plus some other nested traps (such as unaligned faults).  A separate
>irq stack should let us reduce the per-task stack size.

So in the case of 8K page size, you need an order-2 allocation
for the stack, right?  How do you handle failures due to fragmentation?


Mit freundlichen Gruessen / Best Regards

Ulrich Weigand

--
  Dr. Ulrich Weigand
  Linux for S/390 Design & Development
  IBM Deutschland Entwicklung GmbH, Schoenaicher Str. 220, 71032 Boeblingen
  Phone: +49-7031/16-3727   ---   Email: Ulrich.Weigand@de.ibm.com



             reply	other threads:[~2002-06-06 20:55 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-06-06 20:55 Ulrich Weigand [this message]
2002-06-06 21:19 ` David Mosberger
2002-06-06 22:10   ` Martin J. Bligh
2002-06-07  0:59   ` William Lee Irwin III
     [not found] <OF70FD985F.A9C66B00-ONC1256BD0.0069C993@de.ibm.com.suse.lists.linux.kernel>
2002-06-06 19:49 ` Andi Kleen
2002-06-06 20:27   ` David Mosberger
2002-06-07 11:28   ` Maciej W. Rozycki
  -- strict thread matches above, loose matches on Subject: below --
2002-06-06 19:24 Ulrich Weigand
     [not found] <mailman.1023370621.16639.linux-kernel2news@redhat.com>
2002-06-06 17:37 ` Pete Zaitcev
2002-06-07  1:06   ` David S. Miller
2002-06-06 13:32 Ulrich Weigand
     [not found] <20020604225539.F9111@redhat.com.suse.lists.linux.kernel>
     [not found] ` <Pine.LNX.4.44.0206050820100.2941-100000@home.transmeta.com.suse.lists.linux.kernel>
     [not found]   ` <20020605144357.A4697@redhat.com.suse.lists.linux.kernel>
2002-06-05 20:40     ` Andi Kleen
2002-06-05 20:55       ` Linus Torvalds
2002-06-05  2:55 Benjamin LaHaise
2002-06-05 15:33 ` Linus Torvalds
2002-06-05 18:43   ` Benjamin LaHaise
2002-06-05 18:53     ` Linus Torvalds
2002-06-05 21:07       ` Benjamin LaHaise
2002-06-05 22:15 ` Steve Lord
2002-06-05 22:31   ` Benjamin LaHaise
2002-06-05 23:13     ` David S. Miller
2002-06-06  0:24       ` Larry McVoy
2002-06-06  1:15       ` Andi Kleen
2002-06-02 15:52         ` Pavel Machek
2002-06-09 18:50           ` Andi Kleen
2002-06-06  1:42         ` Benjamin LaHaise
2002-06-06  2:30           ` Stephen Lord

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