From: "H. Peter Anvin" <hpa@zytor.com>
To: Yinghai Lu <yinghai@kernel.org>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: Latest brk patchset
Date: Sat, 14 Mar 2009 21:51:33 -0700 [thread overview]
Message-ID: <49BC8955.5070009@zytor.com> (raw)
In-Reply-To: <49BC878D.5090402@kernel.org>
Yinghai Lu wrote:
> H. Peter Anvin wrote:
>> On this subject, what is the point of the 64 K "slop space", and if it
>> is necessary, why not just put it as a RESERVE_BRK() somewhere (*with* a
>> significant comment as to its necessity) instead of putting it as a
>> hack in the linker script?
>>
>
> 32bit already have that
>
> +INIT_MAP_SIZE = (PAGE_TABLE_SIZE + ALLOCATOR_SLOP) * PAGE_SIZE_asm
> +RESERVE_BRK(pagetables, INIT_MAP_SIZE)
>
> in head_32.S
>
> so need to update vmlinux_32.lds.S
>
What about 64 bits? Also, do we really need the "allocator slop", or
can we push that into the user location, which is where it really
belongs? What does use this?
-hpa
next prev parent reply other threads:[~2009-03-15 4:55 UTC|newest]
Thread overview: 51+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-03-14 23:43 Latest brk patchset H. Peter Anvin
2009-03-15 0:32 ` Jeremy Fitzhardinge
2009-03-15 0:37 ` H. Peter Anvin
2009-03-15 6:09 ` Jeremy Fitzhardinge
2009-03-15 6:29 ` Jeremy Fitzhardinge
2009-03-15 20:38 ` [crash] " Ingo Molnar
2009-03-15 20:42 ` Ingo Molnar
2009-03-15 21:19 ` Jeremy Fitzhardinge
2009-03-15 21:28 ` Ingo Molnar
2009-03-15 23:28 ` Jeremy Fitzhardinge
2009-03-16 8:54 ` Ingo Molnar
2009-03-16 16:12 ` Jeremy Fitzhardinge
2009-03-16 16:56 ` Yinghai Lu
2009-03-16 17:20 ` Jeremy Fitzhardinge
2009-03-16 17:54 ` Jeremy Fitzhardinge
2009-03-16 18:15 ` H. Peter Anvin
2009-03-16 18:17 ` Yinghai Lu
2009-03-16 18:22 ` H. Peter Anvin
2009-03-16 18:31 ` Yinghai Lu
2009-03-16 18:17 ` H. Peter Anvin
2009-03-16 19:25 ` Jeremy Fitzhardinge
2009-03-16 19:34 ` H. Peter Anvin
2009-03-16 19:48 ` Yinghai Lu
2009-03-16 20:00 ` Jeremy Fitzhardinge
2009-03-16 20:26 ` H. Peter Anvin
2009-03-16 20:59 ` Jeremy Fitzhardinge
2009-03-16 21:14 ` H. Peter Anvin
2009-03-16 21:31 ` Jeremy Fitzhardinge
2009-03-16 22:35 ` H. Peter Anvin
2009-03-17 2:26 ` Yinghai Lu
2009-03-17 4:00 ` H. Peter Anvin
2009-03-17 5:07 ` Jeremy Fitzhardinge
2009-03-17 16:04 ` H. Peter Anvin
2009-03-17 19:42 ` Jeremy Fitzhardinge
2009-03-17 19:45 ` H. Peter Anvin
2009-03-17 19:59 ` Jeremy Fitzhardinge
2009-03-17 21:19 ` Yinghai Lu
2009-03-17 21:28 ` Jeremy Fitzhardinge
2009-03-17 19:47 ` Jeremy Fitzhardinge
2009-03-22 15:09 ` Ingo Molnar
2009-03-22 17:12 ` Jeremy Fitzhardinge
2009-03-22 17:22 ` Ingo Molnar
2009-03-22 21:48 ` Jeremy Fitzhardinge
2009-03-23 16:39 ` [tip:x86/setup] x86/dmi: fix dmi_alloc() section mismatches Jeremy Fitzhardinge
2009-03-15 1:37 ` Latest brk patchset H. Peter Anvin
2009-03-15 4:43 ` Yinghai Lu
2009-03-15 4:51 ` H. Peter Anvin [this message]
2009-03-15 5:33 ` Yinghai Lu
2009-03-15 6:05 ` Jeremy Fitzhardinge
2009-03-15 6:25 ` Yinghai Lu
2009-03-15 6:03 ` Jeremy Fitzhardinge
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