Re: RT patch breaks X86_64 build

[Ingo Molnar <mingo@elte.hu>]

* Michal Schmidt <xschmi00@stud.feec.vutbr.cz> wrote:

> Ingo Molnar wrote:
> >hm, it does work for me. I had trouble in the past with gcc & mcount on 
> >x64. This version seems to work fine for me:
> >
> > gcc version 3.4.0 20040129 (Red Hat Linux 3.4.0-0.3)
> 
> I could not find this exact version, so I downloaded 
> gcc34-3.4.0-1.x86_64.rpm from Fedora Core 2, converted it do .deb with 
> alien, installed it and made a symlink gcc -> gcc34. gcc --version says:
>   gcc (GCC) 3.4.0 (Red Hat Linux 3.4.0-1)
> 
> I did "make mrproper", copied back your .config, enabled LATENCY_TRACE 
> and rebuilt the kernel.
> init still segfaults.

hm, one difference is that i'm running a 64-bit kernel but 32-bit 
userspace (FC3-ish).

> It would be good to hear about other people's experiences with 
> LATENCY_TRACE on amd64. Am I the only one for whom it breaks?

i definitely had problems with LATENCY_TRACE on x64 in the past - i am 
in fact surprised that it works for me.

	Ingo