The patch titled
paravirtualization-patch-inline-replacements-for (fix)
has been added to the -mm tree. Its filename is
paravirtualization-patch-inline-replacements-for-fix.patch
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: paravirtualization-patch-inline-replacements-for (fix)
From: Rusty Russell <rusty@xxxxxxxxxxxxxxx>
Don't abuse CONFIG_DEBUG_KERNEL, add CONFIG_DEBUG_PARAVIRT.
Signed-off-by: Rusty Russell <rusty@xxxxxxxxxxxxxxx>
Cc: Jeremy Fitzhardinge <jeremy@xxxxxxxxxxxxx>
Cc: Chris Wright <chrisw@xxxxxxxxxxxx>
Cc: Zachary Amsden <zach@xxxxxxxxxx>
Cc: Andi Kleen <ak@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
arch/i386/Kconfig.debug | 10 ++++++++++
arch/i386/kernel/alternative.c | 2 +-
2 files changed, 11 insertions(+), 1 deletion(-)
diff -puN arch/i386/Kconfig.debug~paravirtualization-patch-inline-replacements-for-fix arch/i386/Kconfig.debug
--- a/arch/i386/Kconfig.debug~paravirtualization-patch-inline-replacements-for-fix
+++ a/arch/i386/Kconfig.debug
@@ -85,4 +85,14 @@ config DOUBLEFAULT
option saves about 4k and might cause you much additional grey
hair.
+config DEBUG_PARAVIRT
+ bool "Enable some paravirtualization debugging"
+ default y
+ depends on PARAVIRT && DEBUG_KERNEL
+ help
+ Currently deliberately clobbers regs which are allowed to be
+ clobbered in inlined paravirt hooks, even in native mode.
+ If turning this off solves a problem, then DISABLE_INTERRUPTS() or
+ ENABLE_INTERRUPTS() is lying about what registers can be clobbered.
+
endmenu
diff -puN arch/i386/kernel/alternative.c~paravirtualization-patch-inline-replacements-for-fix arch/i386/kernel/alternative.c
--- a/arch/i386/kernel/alternative.c~paravirtualization-patch-inline-replacements-for-fix
+++ a/arch/i386/kernel/alternative.c
@@ -359,7 +359,7 @@ void apply_paravirt(struct paravirt_patc
used = paravirt_ops.patch(p->instrtype, p->clobbers, p->instr,
p->len);
-#ifdef CONFIG_DEBUG_KERNEL
+#ifdef CONFIG_DEBUG_PARAVIRT
/* Deliberately clobber regs using "not %reg" to find bugs. */
for (i = 0; i < 3; i++) {
if (p->len - used >= 2 && (p->clobbers & (1 << i))) {
_
Patches currently in -mm which might be from rusty@xxxxxxxxxxxxxxx are
printk-timed-ratelimit.patch
schedule-removal-of-futex_fd.patch
prep-for-paravirt-be-careful-about-touching-bios.patch
prep-for-paravirt-be-careful-about-touching-bios-warning-fix.patch
prep-for-paravirt-desch-clearer-parameter-names.patch
prep-for-paravirt-desch-clearer-parameter-names-fix.patch
prep-for-paravirt-rearrange-processorh.patch
paravirtualization-header-and-stubs-for.patch
paravirtualization-patch-inline-replacements-for.patch
paravirtualization-patch-inline-replacements-for-fix.patch
paravirtualization-more-generic-paravirtualization.patch
paravirtualization-allow-selected-bug-checks-to-be.patch
paravirtualization-allow-disabling-legacy-power.patch
paravirtualization-add-apic-accessors-to-paravirt-ops.patch
paravirtualization-add-apic-accessors-to-paravirt-ops-tidy.patch
paravirtualization-add-mmu-virtualization-to.patch
generic-bug-implementation.patch
generic-bug-for-i386.patch
generic-bug-for-x86-64.patch
bug-test-1.patch
-
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