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Venki Pallipadi 71e93d1561 ACPI: lockdep warning on boot, 2.6.25-rc5 ... This avoids the harmless WARNING by lockdep in acpi_processor_idle(). The reason for WARNING is because at the depth of idle handling code, some of the idle handlers disable interrupts, some times, while returning from the idle handler. After return, acpi_processor_idle and few other routines in the file did an unconditional local_irq_enable(). With LOCKDEP, enabling irq when it is already enabled generates the below WARNING. > > [ 0.593038] ------------[ cut here ]------------ > > [ 0.593267] WARNING: at kernel/lockdep.c:2035 trace_hardirqs_on+0xa0/0x115() > > [ 0.593596] Modules linked in: > > [ 0.593756] Pid: 0, comm: swapper Not tainted 2.6.25-rc5 #8 > > [ 0.594017] > > [ 0.594017] Call Trace: > > [ 0.594216] [<ffffffff80231663>] warn_on_slowpath+0x58/0x6b > > [ 0.594495] [<ffffffff80495966>] ? _spin_unlock_irqrestore+0x38/0x47 > > [ 0.594809] [<ffffffff80329a86>] ? acpi_os_release_lock+0x9/0xb > > [ 0.595103] [<ffffffff80337840>] ? acpi_set_register+0x161/0x173 > > [ 0.595401] [<ffffffff8034c8d4>] ? acpi_processor_idle+0x1de/0x546 > > [ 0.595706] [<ffffffff8020a23b>] ? default_idle+0x0/0x73 > > [ 0.595970] [<ffffffff8024fc0e>] trace_hardirqs_on+0xa0/0x115 > > [ 0.596049] [<ffffffff8034c6f6>] ? acpi_processor_idle+0x0/0x546 > > [ 0.596346] [<ffffffff8034c8d4>] acpi_processor_idle+0x1de/0x546 > > [ 0.596642] [<ffffffff8020a23b>] ? default_idle+0x0/0x73 > > [ 0.596912] [<ffffffff8034c6f6>] ? acpi_processor_idle+0x0/0x546 > > [ 0.597209] [<ffffffff8020a23b>] ? default_idle+0x0/0x73 > > [ 0.597472] [<ffffffff8020a355>] cpu_idle+0xa7/0xd1 > > [ 0.597717] [<ffffffff80485fa1>] rest_init+0x55/0x57 > > [ 0.597957] [<ffffffff8062fb49>] start_kernel+0x29d/0x2a8 > > [ 0.598215] [<ffffffff8062f1da>] _sinittext+0x1da/0x1e1 > > [ 0.598464] > > [ 0.598546] ---[ end trace 778e504de7e3b1e3 ]--- Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>		17 years ago
..
dispatcher	ACPI: track opregion names to avoid driver resource conflicts.	17 years ago
events	Merge branches 'release' and 'stats' into release	17 years ago
executer	ACPI: fix build warning	17 years ago
hardware	ACPI suspend: Execute _WAK with the right argument	17 years ago
namespace	ACPI: Check for any matching CID when walking namespace.	17 years ago
parser	…
resources	…
sleep	ACPI: replace remaining __FUNCTION__ occurrences	17 years ago
tables	Merge branches 'release', 'bugzilla-6217', 'bugzilla-6629', 'bugzilla-6933', 'bugzilla-7186', 'bugzilla-8269', 'bugzilla-8570', 'bugzilla-9139', 'bugzilla-9277', 'bugzilla-9341', 'bugzilla-9444', 'bugzilla-9614', 'bugzilla-9643' and 'bugzilla-9644' into release	17 years ago
utilities	Merge branches 'release', 'button-sysfs', 'misc', 'mismatch', 'randconfig' and 'toshiba' into release	17 years ago
Kconfig	ACPI: prevent randconfig build failure on empty ACPI_CUSTOM_DSDT_FILE	17 years ago
Makefile	ACPI: SBS: Host controller must initialize before SBS.	17 years ago
ac.c	ACPI: Make sysfs interface in ACPI power optional.	17 years ago
acpi_memhotplug.c	…
asus_acpi.c	asus_acpi: add support for F3Sa	17 years ago
battery.c	ACPI: battery: add sysfs serial number	17 years ago
bay.c	Merge branches 'release' and 'fluff' into release	17 years ago
blacklist.c	ACPI: DMI: quirk for FSC ESPRIMO Mobile V5505	17 years ago
bus.c	ACPI: replace remaining __FUNCTION__ occurrences	17 years ago
button.c	ACPI: button: make real parent for input devices in device tree	17 years ago
cm_sbs.c	…
container.c	…
debug.c	ACPI: add control method tracing support	18 years ago
dock.c	Merge branches 'release' and 'fluff' into release	17 years ago
ec.c	Merge branches 'release', 'bugzilla-8570', 'bugzilla-9966', 'bugzilla-9998', 'bugzilla-10100', 'bugzilla-10132', 'bugzilla-10138' and 'bugzilla-10206' into release	17 years ago
event.c	ACPI: static acpi_chain_head	17 years ago
fan.c	ACPI fan: extract return values using PTR_ERR	17 years ago
glue.c	ACPI: misc cleanups	17 years ago
numa.c	ACPI: misc cleanups	17 years ago
osl.c	ACPI: Fix a duplicate log level	17 years ago
pci_bind.c	ACPI: misc cleanups	17 years ago
pci_irq.c	ACPI: add _PRT quirks to work around broken firmware	17 years ago
pci_link.c	ACPI: misc cleanups	17 years ago
pci_root.c	ACPI: fix section mismatch in acpi_pci_root_add	17 years ago
power.c	ACPI: remove duplicated warning message	17 years ago
processor_core.c	Merge branches 'release', 'button-sysfs', 'misc', 'mismatch', 'randconfig' and 'toshiba' into release	17 years ago
processor_idle.c	ACPI: lockdep warning on boot, 2.6.25-rc5	17 years ago
processor_perflib.c	ACPI: cpufreq: Print _PPC changes via cpufreq debug layer	17 years ago
processor_thermal.c	ACPI: register ACPI Processor as generic thermal cooling device	17 years ago
processor_throttling.c	ACPI: throttling: fix build warning	17 years ago
sbs.c	ACPI: SBS: Host controller must initialize before SBS.	17 years ago
sbshc.c	ACPI: SBS: Host controller must initialize before SBS.	17 years ago
sbshc.h	ACPI: SBS: Ignore alarms coming from unknown devices	17 years ago
scan.c	Merge branches 'release', 'ejd', 'sony' and 'wmi' into release	17 years ago
system.c	ACPI: buffer array too short in drivers/acpi/system.c	17 years ago
tables.c	…
thermal.c	ACPI: thermal: show temperature in millidegree Celsius	17 years ago
toshiba_acpi.c	toshiba_acpi: Enable autoloading	17 years ago
utils.c	ACPICA: Warn if packages with invalid references are evaluated	17 years ago
video.c	Merge branches 'release', 'button-sysfs', 'misc', 'mismatch', 'randconfig' and 'toshiba' into release	17 years ago
wmi.c	ACPI: WMI: Clean up handling of spec violating data blocks	17 years ago