linux-kernel - [Bisected] 3.7-rc1 can't resume

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Date:	Thu, 18 Oct 2012 14:26:43 +0200
From:	Cédric Godin <cedric@...bone.be>
To:	"H. Peter Anvin" <hpa@...or.com>,
	"Rafael J. Wysocki" <rjw@...k.pl>, Len Brown <len.brown@...el.com>,
	Pavel Machek <pavel@....cz>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>, x86@...nel.org
CC:	Linux Kernel <linux-kernel@...r.kernel.org>,
	linux-pm@...r.kernel.org
Subject: [Bisected] 3.7-rc1 can't resume

Hello,

After upgrading my kernel from 3.6 to 3.7-rc1 on my laptop, I can't resume anymore.
I bisected the problem to


73201dbec64aebf6b0dca855b523f437972dc7bb is the first bad commit
commit 73201dbec64aebf6b0dca855b523f437972dc7bb
Author: H. Peter Anvin <hpa@...ux.intel.com>
Date:ÃÂ ÃÂ  Wed Sep 26 15:02:34 2012 -0700

ÃÂ ÃÂ ÃÂ  x86, suspend: On wakeup always initialize cr4 and EFER
ÃÂ ÃÂ ÃÂ 
ÃÂ ÃÂ ÃÂ  We already have a flag word to indicate the existence of MISC_ENABLES,
ÃÂ ÃÂ ÃÂ  so use the same flag word to indicate existence of cr4 and EFER, and
ÃÂ ÃÂ ÃÂ  always restore them if they exist.ÃÂ  That way if something passes a
ÃÂ ÃÂ ÃÂ  nonzero value when the value *should* be zero, we will still
ÃÂ ÃÂ ÃÂ  initialize it.
ÃÂ ÃÂ ÃÂ 
ÃÂ ÃÂ ÃÂ  Signed-off-by: H. Peter Anvin <hpa@...ux.intel.com>
ÃÂ ÃÂ ÃÂ  Cc: Rafael J. Wysocki <rjw@...k.pl>
ÃÂ ÃÂ ÃÂ  Link: http://lkml.kernel.org/r/1348529239-17943-1-git-send-email-hpa@linux.intel.com

:040000 040000 bb093059ee142f1dd5bd7fe44368ba657701e451 a13e5f81b5a83f783ebeb6317599a7cd6cd4056b MÃÂ ÃÂ ÃÂ ÃÂ ÃÂ  arch

After reverting it, the laptop resumes OK (except the cpufan is at 100% but that's something else).

Here is the bisect log:


git bisect start
# bad: [ddffeb8c4d0331609ef2581d84de4d763607bd37] Linux 3.7-rc1
git bisect bad ddffeb8c4d0331609ef2581d84de4d763607bd37
# good: [a0d271cbfed1dd50278c6b06bead3d00ba0a88f9] Linux 3.6
git bisect good a0d271cbfed1dd50278c6b06bead3d00ba0a88f9
# bad: [24d7b40a60cf19008334bcbcbd98da374d4d9c64] ARM: OMAP2+: PM: MPU DVFS: use generic CPU device for MPU-SS
git bisect bad 24d7b40a60cf19008334bcbcbd98da374d4d9c64
# good: [d9a807461fc8cc0d6ba589ea0730d139122af012] Merge tag 'usb-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
git bisect good d9a807461fc8cc0d6ba589ea0730d139122af012
# bad: [a20acf99f75e49271381d65db097c9763060a1e8] Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next
git bisect bad a20acf99f75e49271381d65db097c9763060a1e8
# good: [7e95c548818d2b311090848083277fb907cfb56d] Merge branch 'next/dt' into HEAD
git bisect good 7e95c548818d2b311090848083277fb907cfb56d
# bad: [95360fd63606918167a5365b770a6d28d333f0ed] Merge tag 'boards' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
git bisect bad 95360fd63606918167a5365b770a6d28d333f0ed
# bad: [797b9e5ae93270ec27a1f1ed48cd697d01b2269f] Merge branch 'for-linus' of git://git.samba.org/sfrench/cifs-2.6
git bisect bad 797b9e5ae93270ec27a1f1ed48cd697d01b2269f
# bad: [15385dfe7e0fa6866b204dd0d14aec2cc48fc0a7] Merge branch 'x86-smap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
git bisect bad 15385dfe7e0fa6866b204dd0d14aec2cc48fc0a7
# good: [367eb2ee8a6f160c369d9afa6732237eeb679467] hwmon: (Documentation) Update feature-removal-schedule.txt
git bisect good 367eb2ee8a6f160c369d9afa6732237eeb679467
# good: [40689ac479e6477096b3dbd5a374cfe3970da3a3] Merge tag 'dlm-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm
git bisect good 40689ac479e6477096b3dbd5a374cfe3970da3a3
# good: [e139e95590dfebab81841bf7a3ac46500f51a47c] x86, smap: Do not abuse the [f][x]rstor_checking() functions for user space
git bisect good e139e95590dfebab81841bf7a3ac46500f51a47c
# good: [cdeb9b014331af4282be522824e36f3aa33f0671] Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k
git bisect good cdeb9b014331af4282be522824e36f3aa33f0671
# good: [39c9a4ab2b91bff26801c86e423ef07fb705b3c0] [IA64] xen: Fix return value check in xencomm_vtop()
git bisect good 39c9a4ab2b91bff26801c86e423ef07fb705b3c0
# bad: [73201dbec64aebf6b0dca855b523f437972dc7bb] x86, suspend: On wakeup always initialize cr4 and EFER
git bisect bad 73201dbec64aebf6b0dca855b523f437972dc7bb
# good: [5a5a51db78ef24aa61a4cb2ae36f07f6fa37356d] x86-32: Start out eflags and cr4 clean
git bisect good 5a5a51db78ef24aa61a4cb2ae36f07f6fa37356d

And in attach my config.

If you need more info,just ask.

Cedric


View attachment "config-3.7" of type "text/plain" (77427 bytes)