From: Bob <bo-liu@xxxxxxxxxxx> Date: Wed, 10 Dec 2008 10:37:36 +0800 > I have another question about switch_to macro. > > Why need to load %%l0 register during switch_to macro? > > "ldd [%%sp+0x00], %%l0" > > I think load %%i6 is enough. Read the comment about the switch_to() macro, it explains this. I don't see how you could miss it. The trap return path for newly forked child tasks depend upon these specific registers being setup a certain way. -- To unsubscribe from this list: send the line "unsubscribe sparclinux" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html