[PATCH] prevent swsusp with PAE
PAE + swsusp results in hard-to-debug crash about 50% of time during
resume. Cause is known, fix needs to be ported from x86-64 (but we can't
make it to 2.6.18, and I'd like this to be worked around in 2.6.18).
Signed-off-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/kernel/power/Kconfig b/kernel/power/Kconfig
index ae44a70..619ecab 100644
--- a/kernel/power/Kconfig
+++ b/kernel/power/Kconfig
@@ -56,7 +56,7 @@
config SOFTWARE_SUSPEND
bool "Software Suspend"
- depends on PM && SWAP && (X86 && (!SMP || SUSPEND_SMP)) || ((FRV || PPC32) && !SMP)
+ depends on PM && SWAP && ((X86 && (!SMP || SUSPEND_SMP) && !X86_PAE) || ((FRV || PPC32) && !SMP))
---help---
Enable the possibility of suspending the machine.
It doesn't need ACPI or APM.
@@ -78,6 +78,10 @@
For more information take a look at <file:Documentation/power/swsusp.txt>.
+ (For now, swsusp is incompatible with PAE aka HIGHMEM_64G on i386.
+ we need identity mapping for resume to work, and that is trivial
+ to get with 4MB pages, but less than trivial on PAE).
+
config PM_STD_PARTITION
string "Default resume partition"
depends on SOFTWARE_SUSPEND