Damien Zammit via Bug reports for the GNU Hurd, le lun. 09 déc. 2024 12:17:37 +0000, a ecrit: > To make selectors work reliably, we need to > write zero to it before writing its final value.
$PERCPU_DS is different from $KERNEL_DS, so we don't need to switch through 0. > --- > i386/i386/cpuboot.S | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/i386/i386/cpuboot.S b/i386/i386/cpuboot.S > index 09855864..f549a2bc 100644 > --- a/i386/i386/cpuboot.S > +++ b/i386/i386/cpuboot.S > @@ -182,6 +182,8 @@ apboot_jmp_offset: > shr $8, %ax > movb %al, apboot_percpu_high > > + xorl %ebx, %ebx > + movw %bx, %gs > movw $PERCPU_DS, %ax > movw %ax, %gs
