Messages in this thread Patch in this message | | | Date | Mon, 4 Dec 2006 15:54:33 +0100 | From | Martin Schwidefsky <> | Subject | [S390] Misaligned wait PSW at memory detection. |
| |
From: Heiko Carstens <heiko.carstens@de.ibm.com>
[S390] Misaligned wait PSW at memory detection.
If the memory detection code would ever reach the point where it would load the wait psw, it would generate a specification exception and the system would crash at ipl time. This is because of a misaligned wait psw. It needs to be on a double word boundary instead of a word boundary.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> ---
arch/s390/kernel/head31.S | 3 ++- 1 files changed, 2 insertions(+), 1 deletion(-)
diff -urpN linux-2.6/arch/s390/kernel/head31.S linux-2.6-patched/arch/s390/kernel/head31.S --- linux-2.6/arch/s390/kernel/head31.S 2006-11-29 22:57:37.000000000 +0100 +++ linux-2.6-patched/arch/s390/kernel/head31.S 2006-12-04 14:50:51.000000000 +0100 @@ -131,10 +131,11 @@ startup_continue: .long init_thread_union .Lpmask: .byte 0 -.align 8 + .align 8 .Lpcext:.long 0x00080000,0x80000000 .Lcr: .long 0x00 # place holder for cr0 + .align 8 .Lwaitsclp: .long 0x010a0000,0x80000000 + .Lsclph .Lrcp: - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |