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Date: Mon, 4 Dec 2006 15:53:55 +0100 From: Martin Schwidefsky <schwidefsky@...ibm.com> To: linux-kernel@...r.kernel.org, heiko.carstens@...ibm.com Subject: [S390] Bad kexec control page allocation. From: Heiko Carstens <heiko.carstens@...ibm.com> [S390] Bad kexec control page allocation. KEXEC_CONTROL_MEMORY_LIMIT is an unsigned long value and therefore should be defined as one. Otherwise the kexec control page can be allocated above 2GB which will cause a specification exception on the sam31 instruction in the s390 kexec relocation code. Signed-off-by: Heiko Carstens <heiko.carstens@...ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@...ibm.com> --- include/asm-s390/kexec.h | 2 +- 1 files changed, 1 insertion(+), 1 deletion(-) diff -urpN linux-2.6/include/asm-s390/kexec.h linux-2.6-patched/include/asm-s390/kexec.h --- linux-2.6/include/asm-s390/kexec.h 2006-11-29 22:57:37.000000000 +0100 +++ linux-2.6-patched/include/asm-s390/kexec.h 2006-12-04 14:50:48.000000000 +0100 @@ -26,7 +26,7 @@ /* Maximum address we can use for the control pages */ /* Not more than 2GB */ -#define KEXEC_CONTROL_MEMORY_LIMIT (1<<31) +#define KEXEC_CONTROL_MEMORY_LIMIT (1UL<<31) /* Allocate one page for the pdp and the second for the code */ #define KEXEC_CONTROL_CODE_SIZE 4096 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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