| Message ID | 20200622162141.279716-2-imbrenda@linux.ibm.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Minor fixes, improvements, and cleanup | expand |
diff --git a/x86/cstart.S b/x86/cstart.S index 38ac19b..fa62e09 100644 --- a/x86/cstart.S +++ b/x86/cstart.S @@ -96,13 +96,13 @@ MSR_GS_BASE = 0xc0000101 .globl start start: + mov $stacktop, %esp push %ebx call setup_multiboot call setup_libcflat mov mb_cmdline(%ebx), %eax mov %eax, __args call __setup_args - mov $stacktop, %esp setup_percpu_area call prepare_32 jmpl $8, $start32
It seems the 32-bit initialization code uses the stack before actually initializing it. Probably the boot loader leaves a reasonable value in the stack pointer so this issue has not been noticed before. Signed-off-by: Claudio Imbrenda <imbrenda@linux.ibm.com> --- x86/cstart.S | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)