lkml.org 
[lkml]   [2008]   [Jul]   [9]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [RFC 00/15] x86_64: Optimize percpu accesses
Mike Travis wrote:
> H. Peter Anvin wrote:
>> Hi Mike,
>>
>> Did the suspected linker bug issue ever get resolved?
>>
>> -hpa
>
> Hi Peter,
>
> I was not able to figure out how the two versions of the same
> kernel compiled by gcc-4.2.0 and gcc-4.2.4 differed. Currently,
> I'm sticking with gcc-4.2.4 as it boots much farther.
>
> There still is a problem where if I bump THREAD_ORDER, the
> problem goes away and everything so far that I've tested boots
> up fine.
>
> We tried to install a later gcc (4.3.1) that might have the
> "GCC_HAS_SP" flag but our sys admin reported:
>
> The 4.3.1 version gives me errors on the make. I had to
> pre-install gmp and mpfr, but, I still get errors on the make.
>
> I think that was the latest he found on the GNU/GCC site.
>

We have seen miscompilations with gcc 4.3.0 at least; not sure about 4.3.1.

-hpa



\
 
 \ /
  Last update: 2008-07-09 19:49    [W:1.351 / U:0.004 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site