From: Shaohua Li <shaohua.li@intel.com>
To: lkml <linux-kernel@vger.kernel.org>
Cc: Andrew Morton <akpm@osdl.org>
Subject: [patch]VMSPLIT_2G conflicts with PAE
Date: Fri, 01 Dec 2006 11:48:45 +0800 [thread overview]
Message-ID: <1164944925.1918.5.camel@sli10-conroe.sh.intel.com> (raw)
PAGE_OFFSET is 0x78000000 with VMSPLIT_2G, this address is in the middle
of the second pgd entry with pae enabled. This breaks assumptions
(address is aligned to pgd entry's address) in a lot of places like
pagetable_init. Fixing the assumptions is hard (eg, low mapping). SO I
just changed the address to 0x80000000.
Signed-off-by: Shaohua Li <shaohua.li@intel.com>
diff --git a/arch/i386/Kconfig b/arch/i386/Kconfig
index 8ff1c6f..fddfb26 100644
--- a/arch/i386/Kconfig
+++ b/arch/i386/Kconfig
@@ -532,7 +532,7 @@ endchoice
config PAGE_OFFSET
hex
default 0xB0000000 if VMSPLIT_3G_OPT
- default 0x78000000 if VMSPLIT_2G
+ default 0x80000000 if VMSPLIT_2G
default 0x40000000 if VMSPLIT_1G
default 0xC0000000
next reply other threads:[~2006-12-01 3:49 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-12-01 3:48 Shaohua Li [this message]
2006-12-01 7:55 ` Jens Axboe
2006-12-01 8:34 ` Shaohua Li
2006-12-02 13:05 ` Pavel Machek
2006-12-02 18:53 ` Jan Engelhardt
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