Re: prevent swsusp with PAE
- From: Andrew Morton <akpm@xxxxxxxx>
- Date: Thu, 31 Aug 2006 10:43:04 -0700
On Thu, 31 Aug 2006 15:53:36 +0200
Pavel Machek <pavel@xxxxxxx> wrote:
If HIGHMEM64G and swsusp are used at the same time, nasty random
crashes happen during resume. Cause is known; prevent that
combination.
I guess I'd like to see this one in 2.6.18...
Signed-off-by: Pavel Machek <pavel@xxxxxxx>
---
commit acb3b411ec93f827b25b8481d53670c5c9195d89
tree f52cd5518e34af16fe5ae28064717bcc95929f28
parent cd03e183c58e6e7073e054a7fe335cf50c61fe2f
author <pavel@xxxxxxxxxx> Thu, 31 Aug 2006 15:52:34 +0200
committer <pavel@xxxxxxxxxx> Thu, 31 Aug 2006 15:52:34 +0200
include/asm-i386/suspend.h | 8 ++++++++
1 files changed, 8 insertions(+), 0 deletions(-)
diff --git a/include/asm-i386/suspend.h b/include/asm-i386/suspend.h
index 08be1e5..01cd812 100644
--- a/include/asm-i386/suspend.h
+++ b/include/asm-i386/suspend.h
@@ -16,6 +16,15 @@ arch_prepare_suspend(void)
printk(KERN_ERR "PSE is required for swsusp.\n");
return -EPERM;
}
+
+#ifdef CONFIG_X86_PAE
+ printk(KERN_ERR "swsusp is incompatible with PAE.\n");
+ /* This is actually instance of the same problem. We need
+ identity mapping self-contained in swsusp_pg_dir, and PAE
+ prevents that. Solution could be copied from x86_64. */
+ return -EPERM;
+#endif
+
return 0;
}
Why not do this in Kconfig??
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
- References:
- prevent swsusp with PAE
- From: Pavel Machek
- prevent swsusp with PAE
- Prev by Date: Re: [PATCH 4/6] Have x86_64 use add_active_range() and free_area_init_nodes
- Next by Date: Re: [PATCH] THE LINUX/I386 BOOT PROTOCOL - Breaking the 256 limit (ping)
- Previous by thread: prevent swsusp with PAE
- Next by thread: cpu_init is called during resume
- Index(es):
Relevant Pages
|
