This is a note to let you know that I've just added the patch titled
s390/compat: fix PSW32_USER_BITS definition
to the 3.13-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
s390-compat-fix-psw32_user_bits-definition.patch
and it can be found in the queue-3.13 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 075dfd82102d2048e43e1cbf48d558d915c50072 Mon Sep 17 00:00:00 2001
From: Heiko Carstens <heiko.carstens@xxxxxxxxxx>
Date: Mon, 13 Jan 2014 13:35:16 +0100
Subject: s390/compat: fix PSW32_USER_BITS definition
From: Heiko Carstens <heiko.carstens@xxxxxxxxxx>
commit 075dfd82102d2048e43e1cbf48d558d915c50072 upstream.
PSW32_USER_BITS should define the primary address space for user space
instead of the home address space.
Symptom of this bug is that gdb doesn't work in compat mode.
The bug was introduced with e258d719ff28 "s390/uaccess: always run the kernel
in home space" and f26946d7ecad "s390/compat: make psw32_user_bits a constant
value again".
Reported-by: Andreas Arnez <arnez@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Heiko Carstens <heiko.carstens@xxxxxxxxxx>
Signed-off-by: Martin Schwidefsky <schwidefsky@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/s390/include/asm/compat.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/arch/s390/include/asm/compat.h
+++ b/arch/s390/include/asm/compat.h
@@ -38,7 +38,8 @@
#define PSW32_USER_BITS (PSW32_MASK_DAT | PSW32_MASK_IO | PSW32_MASK_EXT | \
PSW32_DEFAULT_KEY | PSW32_MASK_BASE | \
- PSW32_MASK_MCHECK | PSW32_MASK_PSTATE | PSW32_ASC_HOME)
+ PSW32_MASK_MCHECK | PSW32_MASK_PSTATE | \
+ PSW32_ASC_PRIMARY)
#define COMPAT_USER_HZ 100
#define COMPAT_UTS_MACHINE "s390\0\0\0\0"
Patches currently in stable-queue which might be from heiko.carstens@xxxxxxxxxx are
queue-3.13/kvm-s390-fix-diagnose-code-extraction.patch
queue-3.13/s390-uapi-fix-struct-statfs64-definition.patch
queue-3.13/s390-compat-fix-psw32_user_bits-definition.patch
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