Re: Debugging Thinkpad T430s occasional suspend failure.

[Ingo Molnar <mingo@kernel.org>]

* H. Peter Anvin <hpa@zytor.com> wrote:

> On 02/16/2013 11:46 AM, Linus Torvalds wrote:
> >Adding Peter Anvin to the people, just in case he sees what's wrong
> >with the system call stub generation that keeps excessively old object
> >files around. If it's easy to fix, it might be worth trying to make it
> >ok to switch from i386 to x86-64 and back in the same tree.
> 
> I have not been able to reproduce this; it seems to Just 
> Work[TM].
> 
> The syscall header stuff is definitely not to blame: it 
> doesn't even *see* the CONFIG_ settings; instead they are only 
> used to determine which subset of files to create, but the 
> files themselves are configuration-independent.  This is by 
> design.
> 
> As such, without an actual known to fail test case there isn't 
> much I can do.

I tried (based on the versions given by Paul):

  git checkout v3.7-rc7
  make ARCH=i386 defconfig
  make -j64 bzImage

  git checkout v3.8-rc7
  make ARCH=x86_64 olddefconfig
  make -j64 bzImage

but it built just fine. The build bug might depend on the 
specific config file, or might depend on tooling details?

Thanks,

	Ingo