| Age | Commit message (Collapse) | Author |
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also, delete sleep/ and delete ACPI_CFLAGS from Makefile
Signed-off-by: Len Brown <len.brown@intel.com>
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acpi.h now includes only the "public" acpica headers. All other
acpica headers are "private" and should not be included by acpica
users. One new file, accommon.h is used to include the commonly
used private headers for acpica code generation. Future plans
are to move all private headers to a new subdirectory.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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Merge the code that validates control method argument counts into
the predefined validation module. Eliminates possible multiple
warnings for incorrect counts.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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For predefined methods (such as _BIF), add automatic conversion for
objects that are required to be a String, but a Buffer was found
instead. This can happen when reading string battery data from
an operation region, because it used to be difficult to convert
the data from buffer to string from within the ASL. Linux BZ 11822.
http://bugzilla.kernel.org/show_bug.cgi?id=11822
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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In a fully qualified namepath, allow multiple backslash prefixes.
This can happen because of the use of a double-backslash in strings
(since backslash is the escape character) causing confusion.
ACPICA BZ 739 Lin Ming.
http://www.acpica.org/bugzilla/show_bug.cgi?id=739
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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Fixes a problem where the use of an alias within a namepath
would result in a not found error or cause the compiler to fault.
Also now allows forward references from the Alias operator itself.
ACPICA BZ 738.
http://www.acpica.org/bugzilla/show_bug.cgi?id=738
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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This define is no longer used.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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Validates predefined ACPI objects that appear in the namespace,
at the time they are evaluated. The argument count and the type of
the returned object are validated. The purpose of this validation
is to detect problems with the BIOS-exposed predefined ACPI objects
before the results are returned to the ACPI-related drivers.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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Fixes a memory leak in the error exit path.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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Fix some sloppiness in the Reference object. No longer use AML
opcodes to differentiate the types, introduce new reference
Class. Cleanup the debug output code.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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Previously aborted with error if too few arguments were passed to
a control method via the external ACPICA interface. Now issue a
warning instead and continue. Handles the case where the method
inadvertently declares too many arguments, but does not actually
use the extra ones. Applies mainly to the predefined methods.
http://bugzilla.kernel.org/show_bug.cgi?id=11032
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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Return AE_TYPE for objects that have no value and therefore
evaluation is undefined: Device, Event, Mutex, Region, Thermal,
and Scope.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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Removed ACPI_DB_WARN and ACPI_DB_ERROR. These debug levels were
made obsolete by the ACPI_WARNING and ACPI_ERROR/ACPI_EXCEPTION
interfaces. Also added ACPI_DB_EVENTS to correspond with the
existing ACPI_LV_EVENTS.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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Also update the debugger so that the correct number of arguments is
passed to the method. Prevents a warning message from the debugger.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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Examines the return object from a call to acpi_evaluate_object.
Any Index or RefOf references are automatically dereferenced in
an attempt to return something useful (these reference types
cannot be converted into an external ACPI_OBJECT.)
Lin Ming, Bob Moore.
http://bugzilla.kernel.org/show_bug.cgi?id=11105
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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Return AE_BAD_PARAMETER if input handle is invalid.
http://www.acpica.org/bugzilla/show_bug.cgi?id=474
Signed-off-by: Fiodor Suietov <fiodor.f.suietov@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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Add error check after all calls to acpi_ns_get_pathname_length.
Add status return from acpi_ns_build_external_path and check after
all calls. Add parameter validation to acpi_ut_initialize_buffer.
Reported by and initial patch by Ingo Molnar.
http://lkml.org/lkml/2008/7/21/176
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
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-tip testing found the following boot crash on 32-bit x86 (Core2Duo
laptop) yesterday:
[ 5.606664] scsi4 : ata_piix
[ 5.606664] scsi5 : ata_piix
[ 5.606664] ACPI Error (psargs-0358): [\_SB_.PCI0.LPC_.EC__.BSTA] Namespace lookup failure, AE_NOT_FOUND
[ 5.606664] ACPI Error (psparse-0530): ACPI Error (nsnames-0186): Invalid NS Node (f7c0e960) while traversing path [20080609]
[ 5.606664] BUG: unable to handle kernel NULL pointer dereference at 0000000f
[ 5.606664] IP: [<80339e2f>] acpi_ns_build_external_path+0x1f/0x80
[ 5.609997] *pdpt = 0000000000a03001 *pde = 0000000000000000
[ 5.609997] Oops: 0002 [#1] SMP
[ 5.609997]
[ 5.609997] Pid: 1, comm: swapper Not tainted (2.6.26-tip-03965-gbbfb62e-dirty #3153)
[ 5.609997] EIP: 0060:[<80339e2f>] EFLAGS: 00010286 CPU: 0
[ 5.609997] EIP is at acpi_ns_build_external_path+0x1f/0x80
[ 5.609997] EAX: f7c18c18 EBX: ffffffff ECX: 00000010 EDX: 00000000
[ 5.609997] ESI: f7c18c18 EDI: 00000010 EBP: f7c4dc28 ESP: f7c4dc18
[ 5.609997] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068
[ 5.609997] Process swapper (pid: 1, ti=f7c4c000 task=f7c50000 task.ti=f7c4c000)
[ 5.609997] Stack: 00000000 00000000 f7c18c18 f7c4dc48 f7c4dc40 80339ed0 00000000 f7c18c18
[ 5.609997] 8084c1b6 8084c1b6 f7c4dc58 8033a60a 00000000 00000010 00000000 f7c18c18
[ 5.609997] f7c4dc70 8033a68f f7c18c18 00000000 f6de7600 00000005 f7c4dc98 8033c34d
[ 5.609997] Call Trace:
[ 5.609997] [<80339ed0>] ? acpi_ns_handle_to_pathname+0x40/0x72
[ 5.609997] [<8033a60a>] ? acpi_ns_print_node_pathname+0x2c/0x61
[ 5.609997] [<8033a68f>] ? acpi_ns_report_method_error+0x50/0x6d
[ 5.609997] [<8033c34d>] ? acpi_ps_parse_aml+0x149/0x2f9
[ 5.609997] [<8033d6dd>] ? acpi_ps_execute_method+0x132/0x201
[ 5.609997] [<80339d19>] ? acpi_ns_evaluate+0x1ad/0x258
[ 5.609997] [<803406c4>] ? acpi_ut_evaluate_object+0x55/0x18f
[ 5.609997] [<803408b7>] ? acpi_ut_execute_STA+0x22/0x7a
[ 5.609997] [<8033a907>] ? acpi_get_object_info+0x131/0x1be
[ 5.609997] [<80344bb2>] ? do_acpi_find_child+0x22/0x4b
[ 5.609997] [<8033b855>] ? acpi_ns_walk_namespace+0xa5/0x124
[ 5.609997] [<803394f3>] ? acpi_walk_namespace+0x54/0x74
[ 5.609997] [<80344b90>] ? do_acpi_find_child+0x0/0x4b
[ 5.609997] [<80344b85>] ? acpi_get_child+0x38/0x43
[ 5.609997] [<80344b90>] ? do_acpi_find_child+0x0/0x4b
[ 5.609997] [<804d0148>] ? ata_acpi_associate+0xb5/0x1b5
[ 5.609997] [<804c6ecb>] ? ata_scsi_add_hosts+0x8e/0xdc
[ 5.609997] [<804c40c8>] ? ata_host_register+0x9f/0x1d6
[ 5.609997] [<804cbc7f>] ? ata_pci_sff_activate_host+0x179/0x19f
[ 5.609997] [<804cdd45>] ? ata_sff_interrupt+0x0/0x1c7
[ 5.609997] [<8069b033>] ? piix_init_one+0x569/0x5b0
[ 5.609997] [<801bd400>] ? sysfs_ilookup_test+0x0/0x11
[ 5.609997] [<801987d7>] ? ilookup5_nowait+0x29/0x30
[ 5.609997] [<802efc7e>] ? pci_match_device+0x99/0xa3
[ 5.609997] [<802efd3c>] ? pci_device_probe+0x39/0x59
[ 5.609997] [<803bc4af>] ? driver_probe_device+0xa0/0x11b
[ 5.609997] [<803bc564>] ? __driver_attach+0x3a/0x59
[ 5.609997] [<803bbde3>] ? bus_for_each_dev+0x36/0x58
[ 5.609997] [<803bc354>] ? driver_attach+0x14/0x16
[ 5.609997] [<803bc52a>] ? __driver_attach+0x0/0x59
[ 5.609997] [<803bc161>] ? bus_add_driver+0x93/0x196
[ 5.609997] [<803bc773>] ? driver_register+0x71/0xcd
[ 5.609997] [<802eff05>] ? __pci_register_driver+0x3f/0x6e
[ 5.609997] [<809af7ff>] ? piix_init+0x14/0x24
[ 5.609997] [<80984568>] ? kernel_init+0x128/0x269
[ 5.609997] [<809af7eb>] ? piix_init+0x0/0x24
[ 5.609997] [<802e2758>] ? trace_hardirqs_on_thunk+0xc/0x10
[ 5.609997] [<80116aef>] ? restore_nocheck_notrace+0x0/0xe
[ 5.609997] [<80984440>] ? kernel_init+0x0/0x269
[ 5.609997] [<80984440>] ? kernel_init+0x0/0x269
[ 5.609997] [<80117d87>] ? kernel_thread_helper+0x7/0x10
[ 5.609997] =======================
[ 5.609997] Code: 75 02 b3 01 8d 43 01 8b 5d fc c9 c3 55 89 e5 57 89 cf 56 53 89 d3 4b 83 ec 04 83 fb 03 89 55 f0 77 09 c6 01 5c c6 41 01 00 eb 59 <c6> 04 19 00 8b 55 f0 8d 34 11 89 c2 eb 19 8b 42 08 83 eb 05 89
[ 5.609997] EIP: [<80339e2f>] acpi_ns_build_external_path+0x1f/0x80 SS:ESP 0068:f7c4dc18
[ 5.613331] Kernel panic - not syncing: Fatal exception
[ 5.613331] Rebooting in 1 seconds..[ 4.646664] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
I have bisected it down to:
# bad: [5b664cbe] Merge branch 'upstream-linus' of git://git.kernel.
# good: [bce7f795] Linux 2.6.26
# good: [e18425ab] Merge branch 'tracing/for-linus' of git://git.kern
# good: [cadc7236] Merge branch 'bkl-removal' into next
# good: [4515889a] Merge branch 'merge' of git://git.kernel.org/pub/s
# good: [42fdd14e] Merge git://git.kernel.org/pub/scm/linux/kernel/gi
# good: [8a0ca91f] Merge branch 'for-linus' of git://git.kernel.org/p
# bad: [0af4b8cb] ACPI: Introduce new device wakeup flag 'prepared'
# good: [fe997407] PCI: construct one fakephp slot per PCI slot
# bad: [531f254a] PCIE: aer: use dev_printk when possible
# bad: [15650a20] x86/PCI: fixup early quirk probing
# good: [0e6859d9] ACPI PM: Remove obsolete Toshiba workaround
# bad: [8344b566] PCI: ACPI PCI slot detection driver
# good: [f46753c9] PCI: introduce pci_slot
| 8344b568f5bdc7ee1bba909de3294c6348c36056 is first bad commit
| commit 8344b568f5bdc7ee1bba909de3294c6348c36056
| Author: Alex Chiang <achiang@hp.com>
| Date: Tue Jun 10 15:30:42 2008 -0600
|
| PCI: ACPI PCI slot detection driver
|
| Detect all physical PCI slots as described by ACPI, and create entries in
| /sys/bus/pci/slots/.
I.e. the new CONFIG_ACPI_PCI_SLOT=y option was causing this crash.
But the bug is not mainly in this new PCI code - that code was just
hitting the ACPI code in a new way which made ACPI break.
The crash signature shows that we are crashing on this instruction:
movb $0x0, (%ecx, %ebx, 1)
ECX and EBX are 0x10 and -1. It's this line in
drivers/acpi/namespace/nsnames.c's acpi_ns_build_external_path():
name_buffer[index] = 0;
I.e. name_buffer is 0x10 and index is -1.
index -1 corresponds to size 0, and name_buffer 0x10 is slab's
ZERO_SIZE_PTR special-case for zero-sized allocations.
I.e. when we called acpi_ns_handle_to_pathname(), we got required_size
of 0 due to an error condition, but this is passed to the ACPI allocator
unconditionally:
required_size = acpi_ns_get_pathname_length(node);
/* Validate/Allocate/Clear caller buffer */
status = acpi_ut_initialize_buffer(buffer, required_size);
if (ACPI_FAILURE(status)) {
return_ACPI_STATUS(status);
}
Where acpi_ut_initialize_buffer(), through many (unnecessary) layers,
ends up calling kzalloc(0). Which returns 0x10 and that then causes the
crash later on.
So fix both callers of acpi_ns_get_pathname_length(), which can return 0
in case of an invalid node.
Also add a WARN_ON() against zero sized allocations in
acpi_ut_initialize_buffer() to make it easier to find similar instances
of this bug.
I have tested this patch for the past 24 hours and the crash has not
reappeared.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
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Eliminated unnecessary operands; eliminated use of negative index
in loop. Operands now displayed in correct order, not backwards.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
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Mostly MODULE_NAME and printf format strings.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
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No longer needed; replaced mostly with u32, but also acpi_size
where a type that changes 32/64 bit on 32/64-bit platforms is
required.
v2: Fix a cast of a 32-bit int to a pointer in ACPI to avoid a compiler warning.
from David Howells
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
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Fixes problem where the new method argument count validation mechanism
will enter an infinite loop when a GPE method is dispatched.
Problem fixed be removing the obsolete code that passes GPE block
information to the notify handler via the control method parameter pointer.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
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acpi_evaluate_object
Error if too few arguments, warning if too many. This applies
only to external programmatic control method execution, not
method-to-method calls within the AML.
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
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Signed-off-by: Len Brown <len.brown@intel.com>
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argument to BankField
Previously, only constants were supported, now any TermArg may
be used.
http://www.acpica.org/bugzilla/show_bug.cgi?id=387
http://www.acpica.org/bugzilla/show_bug.cgi?id=393
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
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the device tree could be terminated prematurely
In accordance with the ACPI specification, the search is terminated
if a device is both not present and not functional (instead of
just not present.) Yakui Zhao.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
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Lint changes, fix compiler warnings, etc.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
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Fixed a problem with the Load and LoadTable operators where
the table location within the namespace was ignored. Instead,
the table was always loaded into the root or current scope.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
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Added additional error checking to prevent run-time faults.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
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Fixed a problem with the Alias operator when the target of the
alias is a named ASL operator that opens a new scope -- Scope,
Device, PowerResource, Processor, and ThermalZone. In these cases,
any children of the original operator could not be accessed via
the alias, potentially causing unexpected AE_NOT_FOUND exceptions.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
|
|
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
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Allows AcpiAcquireGlobalLock external interface to be called
multiple times by the
same thread. Allows use of AML fields that require the global
lock while the running AML is already holding the global lock.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
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The callback function acpi_ns_get_device_callback called from
acpi_get_devices() will check CID's if the HID does not match. This code
has a bug where it requires that all CIDs match the HID. Changed the code
so that any CID match will do.
Signed-off-by: Andrew Patterson <andrew.patterson@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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drivers/acpi/ec.c: In function `acpi_ec_ecdt_probe':
drivers/acpi/ec.c:873: warning: passing arg 1 of `acpi_get_devices' discards qualifiers from pointer target type
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Len Brown <len.brown@intel.com>
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Define standardized HIDs - Rename current acpi_device_id to acpica_device_id
Signed-off-by: Thomas Renninger <trenn@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
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Signed-off-by: Len Brown <len.brown@intel.com>
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This reverts commit a8f4af6dc6600980885c594f52eecd60edd62013.
Thus restoring ACPICA's new acpi_serialize code.
This commit by itself may cause a regression, but
it is reverted in this order so that subsequent
reverts reverts under this one can be made
without conflict.
Signed-off-by: Len Brown <len.brown@intel.com>
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This reverts 977a6226feae3e2c10a4d8227625ff0f04b49239
and reverts 1ba753acb372c2955a4843302e92e49ce82e2fea
and updates acpi_ev_queue_notify_request()
to restore the previous implementation of the
"acpi_serialize" workaround.
http://bugzilla.kernel.org/show_bug.cgi?id=8171
Signed-off-by: Len Brown <len.brown@intel.com>
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During kernel bootup, a new T60 laptop (CoreDuo, 32-bit) hangs about
10%-20% of the time in acpi_init():
Calling initcall 0xc055ce1a: topology_init+0x0/0x2f()
Calling initcall 0xc055d75e: mtrr_init_finialize+0x0/0x2c()
Calling initcall 0xc05664f3: param_sysfs_init+0x0/0x175()
Calling initcall 0xc014cb65: pm_sysrq_init+0x0/0x17()
Calling initcall 0xc0569f99: init_bio+0x0/0xf4()
Calling initcall 0xc056b865: genhd_device_init+0x0/0x50()
Calling initcall 0xc056c4bd: fbmem_init+0x0/0x87()
Calling initcall 0xc056dd74: acpi_init+0x0/0x1ee()
It's a hard hang that not even an NMI could punch through! Frustratingly,
adding printks or function tracing to the ACPI code made the hangs go away
...
After some time an additional detail emerged: disabling the NMI watchdog
made these occasional hangs go away.
So i spent the better part of today trying to debug this and trying out
various theories when i finally found the likely reason for the hang: if
acpi_ns_initialize_devices() executes an _INI AML method and an NMI
happens to hit that AML execution in the wrong moment, the machine would
hang. (my theory is that this must be some sort of chipset setup method
doing stores to chipset mmio registers?)
Unfortunately given the characteristics of the hang it was sheer
impossible to figure out which of the numerous AML methods is impacted
by this problem.
As a workaround i wrote an interface to disable chipset-based NMIs while
executing _INI sections - and indeed this fixed the hang. I did a
boot-loop of 100 separate reboots and none hung - while without the patch
it would hang every 5-10 attempts. Out of caution i did not touch the
nmi_watchdog=2 case (it's not related to the chipset anyway and didnt
hang).
I implemented this for both x86_64 and i686, tested the i686 laptop both
with nmi_watchdog=1 [which triggered the hangs] and nmi_watchdog=2, and
tested an Athlon64 box with the 64-bit kernel as well. Everything builds
and works with the patch applied.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andi Kleen <ak@suse.de>
Cc: Andi Kleen <ak@suse.de>
Cc: Len Brown <lenb@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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drivers/acpi/namespace/nsparse.c:126: warning: int format, different type arg (arg 7)
drivers/acpi/tables/tbfadt.c:224: warning: unsigned int format, different type arg (arg 6)
drivers/acpi/utilities/utdebug.c:184: warning: cast from pointer to integer of different size
drivers/acpi/utilities/utdebug.c:184: warning: cast from pointer to integer of different size
drivers/acpi/utilities/utdebug.c:197: warning: cast from pointer to integer of different size
drivers/acpi/processor_idle.c:1093: warning: long long unsigned int format, u64 arg (arg 5)
Signed-off-by: Len Brown <len.brown@intel.com>
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Added 2007 copyright to all module headers and signons. This affects
virtually every file in the ACPICA core subsystem, iASL compiler,
and the utilities.
Signed-off-by: Alexey Starikovskiy <alexey.y.starikovskiy@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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Debugger: Enhanced the Statistics/Memory command to emit the
total (maximum) memory used during execution, as well as the
maximum memory consumed by each of the various object types.
Signed-off-by: Alexey Starikovskiy <alexey.y.starikovskiy@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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Extra checks for valid handle/path combinations, BZ 478
Signed-off-by: Alexey Starikovskiy <alexey.y.starikovskiy@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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Enhancement to code that ignores temporary namespace nodes
Signed-off-by: Alexey Starikovskiy <alexey.y.starikovskiy@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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Signed-off-by: Alexey Starikovskiy <alexey.y.starikovskiy@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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Signed-off-by: Alexey Starikovskiy <alexey.y.starikovskiy@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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Fixed a problem with a possible race condition between threads executing
AcpiWalkNamespace and the AML interpreter. This condition was removed by
modifying AcpiWalkNamespace to (by default) ignore all temporary
namespace entries created during any concurrent control method execution
Signed-off-by: Alexey Starikovskiy <alexey.y.starikovskiy@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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Fixed a problem with the Global Lock where the lock could appear to be obtained before it is actually obtained, semaphore created with one unit.
Signed-off-by: Alexey Starikovskiy <alexey.y.starikovskiy@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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Enhanced the implementation of the interpreters'
serialized mode (boot with "acpi_serialize" to set
acpi_glb_all_methods_serialized flag.)
When this mode is specified, instead of creating a serialization
semaphore per control method, the interpreter lock is
simply no longer released before a blocking operation
during control method execution. This effectively makes
the AML Interpreter single-threaded. The overhead of a
semaphore per-method is eliminated.
Signed-off-by: Alexey Starikovskiy <alexey.y.starikovskiy@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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Update interface to acpi_ut_repair_name() to avoid
alignment issues on IA64
Signed-off-by: Alexey Starikovskiy <alexey.y.starikovskiy@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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