Messages in this thread | | | Date | Mon, 12 Nov 2007 18:22:31 +0200 | From | Yoav Artzi <> | Subject | Re: PAGE_SIZE on 64bit and 32bit machines |
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I see. Thanks, guys.
-------- Original Message --------
Subject: Re: PAGE_SIZE on 64bit and 32bit machines From: Kyle McMartin <kyle@mcmartin.ca> To: Yoav Artzi <yoavar@checkpoint.com> Date: Monday, November 12, 2007 6:11:06 PM
> On Mon, Nov 12, 2007 at 05:58:08PM +0200, Yoav Artzi wrote: > >> Looking at the source, I see: >> >> #ifdef CONFIG_4KSTACKS >> #define THREAD_SIZE (4096) >> #else >> #define THREAD_SIZE (8192) >> #endif >> >> >> So if I configure the option CONFIG_4KSTACK, I will get a 4KB kernel >> stack. Am I missing something here? >> >> > > This is only on i386 (32-bit x86...)[1] On x86-64, we have 8K kernel > stacks (THREAD_ORDER 1), and 16K irqstacks (IRQSTACK_ORDER 2). > > The relevant defines are found in <asm-x86/page_64.h> for x86_64, and > <asm-x86/thread_info_32.h> for i386. > > Cheers, > Kyle > > 1. That is, stack size is only configurable on 32bit. > > Scanned by Check Point VPN-1 UTM NGX R65 with Messaging Security > >
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