Recently we faced an issue on power7 machine where kernel hanged in purgatory. Some investigation revealed that gcc is generating hardware FPU instructions. I have been told we can't use it at this point of time and as kernel is compiled with -msoft-float for ppc/ppc64, so should be purgatory (as it runs inside kernel context). Thanks to Jakub Jelinek and Lingzhu Xiang for debugging and coming up with a fix for this issue. Signed-off-by: Vivek Goyal <vgoyal at redhat.com> Tested-by: Lingzhu Xiang <lxiang at redhat.com> Tested-by: Suzuki K. Poulose <suzuki at in.ibm.com> --- purgatory/arch/ppc/Makefile | 2 ++ purgatory/arch/ppc64/Makefile | 2 +- 2 files changed, 3 insertions(+), 1 deletion(-) Index: kexec-tools/purgatory/arch/ppc64/Makefile =================================================================== --- kexec-tools.orig/purgatory/arch/ppc64/Makefile 2012-02-20 14:45:25.000000000 -0500 +++ kexec-tools/purgatory/arch/ppc64/Makefile 2012-06-06 16:19:09.000696306 -0400 @@ -9,7 +9,7 @@ ppc64_PURGATORY_SRCS += purgatory/arch/p ppc64_PURGATORY_SRCS += purgatory/arch/ppc64/crashdump_backup.c ppc64_PURGATORY_SRCS += purgatory/arch/ppc64/misc.S -ppc64_PURGATORY_EXTRA_CFLAGS += -m64 -mcall-aixdesc +ppc64_PURGATORY_EXTRA_CFLAGS += -m64 -mcall-aixdesc -msoft-float ppc64_PURGATORY_EXTRA_ASFLAGS += -m64 -mcall-aixdesc ppc64_PURGATORY_EXTRA_LDFLAGS += -melf64ppc Index: kexec-tools/purgatory/arch/ppc/Makefile =================================================================== --- kexec-tools.orig/purgatory/arch/ppc/Makefile 2011-03-18 17:09:38.000000000 -0400 +++ kexec-tools/purgatory/arch/ppc/Makefile 2012-06-06 16:33:50.444406235 -0400 @@ -7,6 +7,8 @@ ppc_PURGATORY_SRCS += purgatory/arch/ppc ppc_PURGATORY_SRCS += purgatory/arch/ppc/purgatory-ppc.c ppc_PURGATORY_SRCS += purgatory/arch/ppc/console-ppc.c +ppc_PURGATORY_EXTRA_CFLAGS += -msoft-float + dist += purgatory/arch/ppc/Makefile $(ppc_PURGATORY_SRCS) \ purgatory/arch/ppc/purgatory-ppc.h purgatory/arch/ppc/ppc_asm.h
