linux/drivers/acpi
Jonathan Nieder dc332fdf9f ACPI / PM: Leave Bus Master Arbitration enabled for suspend/resume
This is an old suspend/resume lockup fix:

	commit 2780cc4660e1
	Author: Len Brown <len.brown@intel.com>
	Date:   Thu Dec 23 13:43:30 2004 -0500

	    [ACPI] Fix suspend/resume lockup issue
	    by leaving Bus Master Arbitration enabled.
	    The ACPI spec mandates it be disabled only for C3.

	    http://bugzilla.kernel.org/show_bug.cgi?id=3599

	    Signed-off-by: David Shaohua Li <shaohua.li@intel.com>
	    Signed-off-by: Len Brown <len.brown@intel.com>

The bug snuck back in in commit 2feec47d4c (ACPICA: ACPI 5: Support
for new FADT SleepStatus, SleepControl registers, 2012-02-14),
presumably by copy/pasting a copy of the code without that fix for the
legacy case.

On affected machines, after that commit, the machine locks up hard on
resume from suspend.  The same fix as seven years ago still works.

Addresses <https://bugzilla.kernel.org/show_bug.cgi?id=43641>.

Reported-bisected-and-tested-by: Octavio Alvarez <alvarezp@alvarezp.com>
Reported-by: Adrian Knoth <adi@drcomp.erfurt.thur.de>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-07-10 21:50:59 +02:00
..
acpica ACPI / PM: Leave Bus Master Arbitration enabled for suspend/resume 2012-07-10 21:50:59 +02:00
apei ACPI, APEI, Avoid too much error reporting in runtime 2012-06-12 00:17:18 -04:00
ac.c
acpi_ipmi.c
acpi_memhotplug.c
acpi_pad.c acpi_pad: fix power_saving thread deadlock 2012-06-30 00:51:13 -04:00
battery.c ACPI battery: only refresh the sysfs files when pertinent information changes 2012-05-08 01:49:57 -04:00
bgrt.c acpi, bgrd: Add missing <linux/io.h> to drivers/acpi/bgrt.c 2012-05-17 07:18:26 -07:00
blacklist.c
bus.c ACPI / PM: Make __acpi_bus_get_power() cover D3cold correctly 2012-05-29 21:20:24 +02:00
button.c
cm_sbs.c
container.c
custom_method.c
debugfs.c
dock.c
ec_sys.c
ec.c
event.c
fan.c
glue.c ACPI: Add stubs for (un)register_acpi_bus_type 2012-05-11 17:03:12 -07:00
hed.c
internal.h
Kconfig drivers: acpi: Fix dependency for ACPI_HOTPLUG_CPU 2012-06-04 00:07:33 -04:00
Makefile
numa.c
nvs.c
osl.c Revert "ACPI: Make ACPI interrupt threaded" 2012-04-18 10:16:27 -07:00
pci_bind.c
pci_irq.c
pci_link.c acpi: use KERN_CONT in printk() continuation lines 2012-05-08 08:55:26 -07:00
pci_root.c
pci_slot.c
power.c ACPI / PM: Make __acpi_bus_get_power() cover D3cold correctly 2012-05-29 21:20:24 +02:00
proc.c
processor_core.c
processor_driver.c
processor_idle.c PM / ACPI: Fix suspend/resume regression caused by cpuidle cleanup. 2012-06-27 20:18:53 +02:00
processor_perflib.c ACPI: Ignore invalid _PSS entries, but use valid ones 2012-05-08 01:56:37 -04:00
processor_thermal.c
processor_throttling.c
reboot.c Revert "ACPI: ignore FADT reset-reg-sup flag" 2012-04-20 11:19:35 -07:00
sbs.c
sbshc.c
sbshc.h
scan.c ACPI / PM: Generate wakeup events on fixed power button 2012-05-29 21:20:23 +02:00
sleep.c Merge branches 'bugfix-battery', 'bugfix-misc', 'bugfix-rafael', 'bugfix-turbostat', 'bugfix-video' and 'workaround-pss' into release 2012-06-04 00:48:41 -04:00
sleep.h
sysfs.c ACPI sysfs.c strlen fix 2012-06-05 00:02:05 -04:00
tables.c
thermal.c
utils.c ACPI: Add _PLD support 2012-05-11 17:03:12 -07:00
video_detect.c
video.c Merge branches 'acpi_pad-bugzilla-42981', 'apei-bugzilla-43282', 'video-bugzilla-43168', 'bugzilla-40002' and 'bugfix-misc' into release 2012-06-30 00:53:50 -04:00
wakeup.c