Re: 2.6.17-rc5-mm1

[Barry K. Nathan]

On 6/5/06, Andrew Morton <akpm@xxxxxxxx> wrote:
> I guess we should force 8k stacks if the lockdep features are enabled.

Also, Laurent is running "2.6.17-rc5-mm3-lockdep" (per his previous
message), i.e., 2.6.17-rc5-mm3 with Ingo's lockdep-combo patch added.
If you're wondering how I conclude the latter from the former, look at
this hunk from the lockdep-combo patch:

--- linux.orig/Makefile
+++ linux/Makefile
@@ -1,7 +1,7 @@
VERSION = 2
PATCHLEVEL = 6
SUBLEVEL = 17
-EXTRAVERSION =-rc5-mm3
+EXTRAVERSION =-rc5-mm3-lockdep
NAME=Lordi Rules

And from the same patch:

--- linux.orig/arch/i386/Makefile
+++ linux/arch/i386/Makefile
@@ -38,6 +38,10 @@ CFLAGS += $(call cc-option,-mpreferred-s
include $(srctree)/arch/i386/Makefile.cpu

cflags-$(CONFIG_REGPARM) += -mregparm=3
+#
+# Prevent tail-call optimizations, to get clearer backtraces:
+#
+cflags-$(CONFIG_FRAME_POINTER) += -fno-optimize-sibling-calls

# temporary until string.h is fixed
cflags-y += -ffreestanding

I would expect that to increase stack usage...
--
-Barry K. Nathan <barryn@xxxxxxxxx>
-
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