Messages in this thread | | | Date | Wed, 09 Jul 2008 13:42:40 -0400 | From | "H. Peter Anvin" <> | Subject | Re: [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
| |