The patch titled
lockdep: special s390 print_symbol() version
has been added to the -mm tree. Its filename is
lockdep-special-s390-print_symbol-version.patch
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: lockdep: special s390 print_symbol() version
From: Heiko Carstens <heiko.carstens@xxxxxxxxxx>
Have a special version of print_symbol() for s390 which clears the most
significant bit of addr before calling __print_symbol(). This seems to be
better than checking/changing each place in the kernel that saves an
instruction pointer.
Without this the output would look like:
hardirqs last enabled at (30907): [<80018c6a>] 0x80018c6a
hardirqs last disabled at (30908): [<8001e48c>] 0x8001e48c
softirqs last enabled at (30904): [<8001dc96>] 0x8001dc96
softirqs last disabled at (30897): [<8001dc50>] 0x8001dc50
instead of this:
hardirqs last enabled at (19421): [<80018c72>] cpu_idle+0x176/0x1c4
hardirqs last disabled at (19422): [<8001e494>] io_no_vtime+0xa/0x1a
softirqs last enabled at (19418): [<8001dc9e>] do_softirq+0xa6/0xe8
softirqs last disabled at (19411): [<8001dc58>] do_softirq+0x60/0xe8
Cc: Ingo Molnar <mingo@xxxxxxx>
Cc: Arjan van de Ven <arjan@xxxxxxxxxxxxx>
Cc: Martin Schwidefsky <schwidefsky@xxxxxxxxxx>
Signed-off-by: Heiko Carstens <heiko.carstens@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
include/linux/kallsyms.h | 9 +++++++++
1 file changed, 9 insertions(+)
diff -puN include/linux/kallsyms.h~lockdep-special-s390-print_symbol-version include/linux/kallsyms.h
--- a/include/linux/kallsyms.h~lockdep-special-s390-print_symbol-version
+++ a/include/linux/kallsyms.h
@@ -57,11 +57,20 @@ do { \
#define print_fn_descriptor_symbol(fmt, addr) print_symbol(fmt, addr)
#endif
+/* need to clear the most significant bit on s390 31bit */
+#if defined(CONFIG_S390) && !defined(CONFIG_64BIT)
+#define print_symbol(fmt, addr) \
+do { \
+ __check_printsym_format(fmt, ""); \
+ __print_symbol(fmt, addr & 0x7fffffff); \
+} while(0)
+#else
#define print_symbol(fmt, addr) \
do { \
__check_printsym_format(fmt, ""); \
__print_symbol(fmt, addr); \
} while(0)
+#endif
#ifndef CONFIG_64BIT
#define print_ip_sym(ip) \
_
Patches currently in -mm which might be from heiko.carstens@xxxxxxxxxx are
origin.patch
git-klibc.patch
git-s390.patch
zoned-vm-counters-create-vmstatc-h-from-page_allocc-h-s390-fix.patch
s390-move-var-declarations-behind-ifdef.patch
fix-oddball-boolean-logic-in-s390-netiucv.patch
s390-broken-null-test-in-claw-driver.patch
lockdep-console_init-after-local_irq_enable.patch
lockdep-add-print_ip_sym.patch
lockdep-s390-config_frame_pointer-support.patch
lockdep-stacktrace-subsystem-s390-support.patch
lockdep-irqtrace-subsystem-s390-support.patch
lockdep-s390-turn-validator-off-in-machine-check-handler.patch
lockdep-annotate-qeth-driver.patch
lockdep-special-s390-print_symbol-version.patch
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