Linux kernel stable tree (mirror) https://git.radix-linux.su/kernel/linux.git/atom?h=linux-2.6.22.y 2007-05-10T03:34:35+00:00 2007-05-10T03:34:35+00:00 Len Brown len.brown@intel.com 2007-05-10T03:34:35+00:00 urn:sha1:fd3509436fde38d4c854bf5a6b83d2c779904f8e Signed-off-by: Len Brown <len.brown@intel.com> 2007-05-10T02:56:38+00:00 Len Brown len.brown@intel.com 2007-05-10T02:56:38+00:00 urn:sha1:4d2acd9ea539e0f59178b126f6750ccc41eefcdd 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> 2007-03-15T08:10:36+00:00 Len Brown len.brown@intel.com 2007-03-15T08:10:36+00:00 urn:sha1:a8f4af6dc6600980885c594f52eecd60edd62013 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> 2007-02-13T12:26:24+00:00 Ingo Molnar mingo@elte.hu 2007-02-13T12:26:24+00:00 urn:sha1:5d0e600d903caa09e790824cc5812f0d97113b23 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> 2007-02-03T04:08:40+00:00 Alexey Starikovskiy alexey.y.starikovskiy@linux.intel.com 2007-01-26T03:39:44+00:00 urn:sha1:b0b7eaaf0c7aefd118d3ff8640fbed75a9fad9a1 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> 2007-02-03T02:14:31+00:00 Bob Moore robert.moore@intel.com 2007-02-02T16:48:24+00:00 urn:sha1:6c9deb7201d96733dcd1b4cc44e99232308db359 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> 2007-02-03T02:14:31+00:00 Valery A. Podrezov valery.a.podrezov@intel.com 2007-02-02T16:48:23+00:00 urn:sha1:afbb9e659d584bd5bf0604848c91afd5761ed7a1 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> 2007-02-03T02:14:28+00:00 Bob Moore robert.moore@intel.com 2007-02-02T16:48:22+00:00 urn:sha1:f1c2b1daf040d2feebfbbd4a0cd80cde856fc031 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> 2007-02-03T02:14:28+00:00 Bob Moore robert.moore@intel.com 2007-02-02T16:48:21+00:00 urn:sha1:c1014629c0fc563be65e675e72bcc9bd7db50195 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> 2007-02-03T02:14:28+00:00 Bob Moore robert.moore@intel.com 2007-02-02T16:48:21+00:00 urn:sha1:3effba32069514e56bcb778f90cd34fdbac79a50 Signed-off-by: Alexey Starikovskiy <alexey.y.starikovskiy@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>