linux-kernel - Re: [BISECTED] linux-next-20080519 does not boot on x86 (ACPI)

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Message-ID:  <g11l0c$jji$1@ger.gmane.org>
Date:	Wed, 21 May 2008 18:09:32 +0100
From:	Sitsofe Wheeler <sitsofe@...oo.com>
To:	linux-kernel@...r.kernel.org
Subject:  Re: [BISECTED] linux-next-20080519 does not boot on x86 (ACPI)

<posted & mailed>

Sitsofe Wheeler wrote:

> While trying to boot this kernel the kernel seems to be going well until
> it comes to time to mount disks at which point it starts going very slow.
> It doesn't respond to the keyboard (caps lock does not work), sysrq is
> inoperable and the ATA tests timeout and over the course of minutes start
> negotiating slower speeds. Using nmi_watchdog=1 or nmi_watchdog=2 does not
> make any difference. next-20080516 booted correctly.
> 
> Config is downloadable from http://sucs.org/~sits/test/config-20080519 .

OK I've finally bisected this down to the following commit:
commit 86a2e1a7ec8c6363e502ac8ccf5fe50dd46b39c2
Author: Alexey Starikovskiy <astarikovskiy@...e.de>
Date:   Wed May 14 19:02:57 2008 +0400

    x86: complete move ACPI from mpparse.c

    Signed-off-by: Alexey Starikovskiy <astarikovskiy@...e.de>
    Signed-off-by: Ingo Molnar <mingo@...e.hu>

Reverting that commit made the problem go away.

Here's the bisection log:
# bad: [d8a43554b5bf7e53b20d9cbcdbb3cb3b3548efb3] Add linux-next specific files
# good: [f1d3dea84b7db920eba269ae35c286947c01385f] Add linux-next specific files
git-bisect start 'next-20080519' 'next-20080516'
# bad: [9b9c66d50701d9e9ce20babc2ba6fee13e5bf165] Merge branch 'scratch' into auto-latest
git-bisect bad 9b9c66d50701d9e9ce20babc2ba6fee13e5bf165
# good: [8d5902b9d9cdd4d91d41e6078f909994ae13b5a1] Merge branch 'linus' into ftrace
git-bisect good 8d5902b9d9cdd4d91d41e6078f909994ae13b5a1
# good: [468d3c898eef22cc43b28e7da1f166a972678956] x86: boot/printfc use NULL instead 0
git-bisect good 468d3c898eef22cc43b28e7da1f166a972678956
# bad: [9cba8dc9383ab1c49c500754becdfd2b65c46f2a] Merge branch 'x86/pat' into auto-x86-next
git-bisect bad 9cba8dc9383ab1c49c500754becdfd2b65c46f2a
# bad: [a2b7bd1ca537b6975554f6f2762412829d814ca3] Merge branch 'x86/gart' into auto-x86-next
git-bisect bad a2b7bd1ca537b6975554f6f2762412829d814ca3
# good: [1c79873486c6adf464fe4a581e89676e885d20db] x86: move es7000_plat out of mpparse.c
git-bisect good 1c79873486c6adf464fe4a581e89676e885d20db
# bad: [0f95f8c5ab32555450ff317817be2dbb9dca887d] Merge branch 'x86/cleanups' into auto-x86-next
git-bisect bad 0f95f8c5ab32555450ff317817be2dbb9dca887d
# bad: [898edd00a974951e89d749251a7581855e51c675] arch/x86/mm/pat.c: use boot_cpu_has()
git-bisect bad 898edd00a974951e89d749251a7581855e51c675
# bad: [e29b4ee46a2dd0274a8022b55d286491a6184197] x86: make config_irqsrc not MPspec specific
git-bisect bad e29b4ee46a2dd0274a8022b55d286491a6184197
# bad: [8fafd462213ee315db6192104e456f4c6e724aa7] x86: make mp_ioapic_routing definition local
git-bisect bad 8fafd462213ee315db6192104e456f4c6e724aa7
# bad: [86a2e1a7ec8c6363e502ac8ccf5fe50dd46b39c2] x86: complete move ACPI from mpparse.c
git-bisect bad 86a2e1a7ec8c6363e502ac8ccf5fe50dd46b39c2

-- 
Sitsofe | http://sucs.org/~sits/

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