Re: [Syllable-kernel] SMP: -O1 vs. -O2

[Jake H. <jh...@an...>]

Kristian Van Der Vliet wrote:
> 
> Attached is the result of tonights work.  I've identified smp.c as the culprit 
> (Makes sense, at least)  I was working with the stock 0.5.4 source which did 
> not include your previous patches for -O2, so I've used -O3 and -O1, although 
> I will confirm tommorrow with -O1 and -O2 just to be 100% sure.

Well, there is at least one small bug which could break a -O3 build: 
the read_cpu_id() function is modifying the %ebx register but doesn't 
tell GCC that it is.  I've attached a patch.  That still doesn't explain 
why a -O2 build is also failing.  I'll keep looking at it...

--
Jake