linux-kernel - Re: 2.6.26-rc: SPARC: Sun Ultra 10 can not boot

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Message-ID: <a4423d670806201612g3487325cj175f077fbe71de2a@mail.gmail.com>
Date:	Sat, 21 Jun 2008 03:12:30 +0400
From:	"Alexander Beregalov" <a.beregalov@...il.com>
To:	"David Miller" <davem@...emloft.net>
Cc:	kernel-testers@...r.kernel.org, sparclinux@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: 2.6.26-rc: SPARC: Sun Ultra 10 can not boot

2008/6/21 David Miller <davem@...emloft.net>:
> Something is screwey here... Hmmm...
>
> When I added the changeset in question, it fixed a problem in that
> any backtrace of a kernel thread would loop forever at the end.
> Any stack backtrace would hang or reach a safety limit (such as
> the one imposed by lockdep).
>
> Please double check that you are precisely reverting this patch
> below _before_ doing these tests:
>
> commit a051bc5bb1ac6dc138d529077fa20cbbc6622d95

Yes, I am sure. It runs without this commit and hangs with it.
I can connect serial console, but if it is a infinite loop it will not
provide more info.

$ git log arch/sparc64/kernel/process.c
commit 99d3b2d0d3df1fa171a7ee1d2d3a92f540873b15
Author: alexb <alexb@...rky>
Date:   Thu Jun 19 18:49:46 2008 +0400

    Revert "sparc64: Fix kernel thread stack termination."

    This reverts commit a051bc5bb1ac6dc138d529077fa20cbbc6622d95.

commit a051bc5bb1ac6dc138d529077fa20cbbc6622d95
Author: David S. Miller <davem@...emloft.net>
Date:   Wed May 21 18:14:28 2008 -0700

    sparc64: Fix kernel thread stack termination.
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