SSE register return with SSE disabled

lx lxlenovostar at gmail.com
Fri Apr 18 03:41:35 EDT 2014


hi all:
      I'm complie the kernel.I do it by:
##################################
make V=1
##################################

the error messages is:
##################################
(cat /dev/null; ) > fs/sysfs/modules.order
  gcc -Wp,-MD,fs/.mbcache.o.d  -nostdinc -isystem
/usr/lib/gcc/x86_64-redhat-linux/4.1.2/include
-I/opt/lx/kernel/kernel_test/kernel/linux/arch/x86/include
-Iarch/x86/include/generated  -Iinclude
-I/opt/lx/kernel/kernel_test/kernel/linux/arch/x86/include/uapi
-Iarch/x86/include/generated/uapi
-I/opt/lx/kernel/kernel_test/kernel/linux/include/uapi
-Iinclude/generated/uapi -include
/opt/lx/kernel/kernel_test/kernel/linux/include/linux/kconfig.h
-D__KERNEL__ -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs
-fno-strict-aliasing -fno-common -Werror-implicit-function-declaration
-Wno-format-security -fno-delete-null-pointer-checks -Os -m64 -mno-mmx
-mno-sse -mno-80387 -mno-fp-ret-in-387 -mtune=generic -mno-red-zone
-mcmodel=kernel -funit-at-a-time -maccumulate-outgoing-args
-DCONFIG_AS_CFI=1 -DCONFIG_AS_CFI_SIGNAL_FRAME=1 -DCONFIG_AS_FXSAVEQ=1
-DCONFIG_AS_CRC32=1 -pipe -Wno-sign-compare -fno-asynchronous-unwind-tables
-mno-sse -mno-mmx -mno-sse2 -mno-3dnow -fno-stack-protector
-fomit-frame-pointer -g -Wdeclaration-after-statement -Wno-pointer-sign
 -D"KBUILD_STR(s)=#s" -D"KBUILD_BASENAME=KBUILD_STR(mbcache)"
 -D"KBUILD_MODNAME=KBUILD_STR(mbcache)" -c -o fs/.tmp_mbcache.o fs/mbcache.c
fs/mbcache.c: In function ‘__spin_lock_mb_cache_entry’:
fs/mbcache.c:134: error: SSE register return with SSE disabled
make[1]: *** [fs/mbcache.o] Error 1
make: *** [fs] Error 2
##################################

I know beacause I use the gcc complie optaions of "-mmo-sse", the SSE is
disables.
The branch is:
##################################
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
##################################

How to fix it? Thank you
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