Re: EDD problem -- regression -- crash on booting by probing EDD

From: Randy Dunlap
Date: Sun Apr 27 2008 - 22:37:54 EST


On Sat, 26 Apr 2008 18:17:04 -0500 Matt Domsch wrote:

> On Wed, Apr 23, 2008 at 08:35:47AM -0700, Randy Dunlap wrote:
> > On Tue, 22 Apr 2008 21:20:44 -0300 (GFT) werner wrote:
> >
> > > As I tested yesterday extensively, the problem wasn't present at 2.6.24-rc5-git6 (SYS Linux 0.17 install DVD) nor at 2.6.24-rc6-git2 (SYS 0.19) , but at 2.6.24-rc6-git8 (SYS 0.20-rc1 and 0.20-rc2) and 2.6.25 (0.21-r3).
> > >
> > > The whole compiled packages of these kernels still are at copaya.yi.org/tgz , but I extracted the important parts, see enclosed here. The .tar.bz2 file contains the config and the protocoll of the compilation (inclusive warning / error messages).
> > >
> > > As you can see, the diff between the config of 2.6.24-rc6-git2 and -git8 is nothing. That means: THE ERROR ENTERED INTO THE KERNEL BETWEEN THESE TWO GITs !!
> >
> > Hi,
> > I'm a little confused.
> >
> > Is this supposed to be "between 2.6.25-rc6-git2 and 2.6.25-rc6-git8"?
> > You say 2.6.24-rc6-git*. I just want to make sure of which patch
> > interval we are looking at.
>
> It's definitely .24 given the dates for the SYS releases he notes. The
> diffstat between the two is relatively short [1], but I can't see
> anything that can be related. This code runs so early, during real
> mode startup, that my only suspects are:
>
> arch/x86/kernel/head_32.S | 2 +-
> arch/x86/kernel/smpboot_64.c | 2 +-
> include/asm-generic/tlb.h | 3 -
> include/asm-x86/byteorder.h | 4 +-
> include/asm-x86/msr.h | 74 +++++++++--------
>
>
>
> [1] http://domsch.com/linux/edd-bug-2008-04-26.patch
>
> but none of those are obviously the culprit to me...

Yeah, there are also some IDE changes in that -rc2..-rc8 range.
I'm wondering if any of them could interfere.

> Werner, the initcall_debug trace would be most helpful; without that
> I'm not sure how much progress we can make on this.

That should be helpful.

---
~Randy
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/