From: Matt Mackall <mpm@selenic.com>
To: "Moore, Robert" <robert.moore@intel.com>
Cc: Len Brown <lenb@kernel.org>, Pavel Machek <pavel@suse.cz>,
Ingo Molnar <mingo@elte.hu>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
"linux-acpi@vger.kernel.org" <linux-acpi@vger.kernel.org>
Subject: RE: [PATCH] x86: trim ACPI sleep stack buffer
Date: Thu, 09 Oct 2008 12:41:50 -0500 [thread overview]
Message-ID: <1223574110.17706.109.camel@calx> (raw)
In-Reply-To: <4911F71203A09E4D9981D27F9D83085803123361@orsmsx503.amr.corp.intel.com>
On Thu, 2008-10-09 at 10:23 -0700, Moore, Robert wrote:
> Sounds like you need a
>
> #define DEFAULT_STACK_SIZE 4096
>
> Somewhere.
Or maybe something like this:
x86: remove magic number from ACPI sleep stack buffer
Signed-off-by: Matt Mackall <mpm@selenic.com>
diff -r 375a00b8bf10 arch/x86/kernel/acpi/sleep.c
--- a/arch/x86/kernel/acpi/sleep.c Thu Oct 09 12:38:55 2008 -0500
+++ b/arch/x86/kernel/acpi/sleep.c Thu Oct 09 12:40:10 2008 -0500
@@ -97,7 +97,7 @@
#else /* CONFIG_64BIT */
header->trampoline_segment = setup_trampoline() >> 4;
#ifdef CONFIG_SMP
- stack_start.sp = temp_stack + 4096;
+ stack_start.sp = temp_stack + sizeof(temp_stack);
#endif
initial_code = (unsigned long)wakeup_long64;
saved_magic = 0x123456789abcdef0;
--
Mathematics is the supreme nostalgia of our time.
next prev parent reply other threads:[~2008-10-09 17:44 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-10-01 0:12 Why is arch/x86/kernel/acpi/sleep.c:temp_stack 10k? Matt Mackall
2008-10-09 8:56 ` Pavel Machek
2008-10-09 16:56 ` [PATCH] x86: trim ACPI sleep stack buffer Matt Mackall
2008-10-09 17:19 ` Len Brown
2008-10-09 17:23 ` Moore, Robert
2008-10-09 17:41 ` Matt Mackall [this message]
2008-10-09 18:07 ` Pavel Machek
2008-10-09 18:35 ` Len Brown
2008-10-09 21:25 ` Rafael J. Wysocki
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