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152cef40a8
linux/drivers/acpi
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Huang Ying 152cef40a8 ACPI, APEI, GHES, Error records content based throttle 
printk is used by GHES to report hardware errors.  Ratelimit is
enforced on the printk to avoid too many hardware error reports in
kernel log.  Because there may be thousands or even millions of
corrected hardware errors during system running.

Currently, a simple scheme is used.  That is, the total number of
hardware error reporting is ratelimited.  This may cause some issues
in practice.

For example, there are two kinds of hardware errors occurred in
system.  One is corrected memory error, because the fault memory
address is accessed frequently, there may be hundreds error report
per-second.  The other is corrected PCIe AER error, it will be
reported once per-second.  Because they share one ratelimit control
structure, it is highly possible that only memory error is reported.

To avoid the above issue, an error record content based throttle
algorithm is implemented in the patch.  Where after the first
successful reporting, all error records that are same are throttled for
some time, to let other kinds of error records have the opportunity to
be reported.

In above example, the memory errors will be throttled for some time,
after being printked.  Then the PCIe AER error will be printked
successfully.

Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2011-08-03 11:15:57 -04:00
..
acpica Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 2011-05-29 11:19:16 -07:00
apei ACPI, APEI, GHES, Error records content based throttle 2011-08-03 11:15:57 -04:00
ac.c Merge branch 'procfs-cleanup' into release 2011-01-12 05:00:07 -05:00
acpi_ipmi.c IPMI/ACPI: Add the IPMI opregion driver to enable ACPI to access BMC controller 2010-12-14 00:22:14 -05:00
acpi_memhotplug.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
acpi_pad.c ACPI: minor printk format change in acpi_pad 2011-03-23 01:36:45 -04:00
atomicio.c x86: remove 32-bit versions of readq()/writeq() 2011-05-25 08:39:44 -07:00
battery.c ACPI battery: fribble sysfs files from a resume notifier 2011-03-22 23:30:31 -04:00
blacklist.c Merge branch 'msi-dmi' into release 2010-10-08 22:37:46 -04:00
bus.c ACPI, APEI, Add APEI bit support in generic _OSC call 2011-07-13 23:38:20 -04:00
button.c ACPI button: remove unused procfs I/F 2011-03-22 23:20:35 -04:00
cm_sbs.c ACPI: Move definition of PREFIX from acpi_bus.h to internal..h 2009-08-28 19:57:27 -04:00
container.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
custom_method.c ACPI: Split out custom_method functionality into an own driver 2011-05-29 01:50:40 -04:00
debugfs.c ACPI: Split out custom_method functionality into an own driver 2011-05-29 01:50:40 -04:00
dock.c ACPICA: Rename some function and variable names 2011-01-12 04:24:40 -05:00
ec_sys.c ACPI: Remove the unused EC sysdev class 2011-03-18 18:22:20 -04:00
ec.c Merge branch 'ec-cleanup' into release 2011-05-29 04:40:39 -04:00
event.c llseek: automatically add .llseek fop 2010-10-15 15:53:27 +02:00
fan.c ACPI / Fan: Rework the handling of power resources 2011-01-12 04:48:45 -05:00
glue.c ACPI / PM: Drop special ACPI wakeup flags 2011-01-07 01:18:00 -05:00
hed.c ACPI Hardware Error Device (PNP0C33) support 2010-05-19 22:40:24 -04:00
internal.h ACPI: Cleanup custom_method debug stuff 2011-05-29 01:50:04 -04:00
Kconfig Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 2011-05-29 11:19:16 -07:00
Makefile Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 2011-05-29 11:19:16 -07:00
numa.c x86-64, NUMA: Unify {acpi|amd}_{numa_init|scan_nodes}() arguments and return values 2011-02-16 12:13:06 +01:00
nvs.c ACPI / PM: Use existing ACPI iomaps for NVS save/restore (v2) 2011-02-24 19:58:42 +01:00
osl.c Merge branches 'acpica', 'aml-custom', 'bugzilla-16548', 'bugzilla-20242', 'd3-cold', 'ec-asus' and 'thermal-fix' into release 2011-05-29 04:38:48 -04:00
pci_bind.c PCI / ACPI / PM: Platform support for PCI PME wake-up 2010-02-22 16:21:02 -08:00
pci_irq.c ACPI: remove unused declaration of proc_fs.h 2010-10-15 22:03:36 -04:00
pci_link.c ACPI: Use syscore_ops instead of sysdev class and sysdev 2011-03-18 18:22:21 -04:00
pci_root.c PCI/ACPI: Report _OSC control mask returned on failure to get control 2011-05-10 15:43:37 -07:00
pci_slot.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
power.c ACPI / PM: Check status of power resources under mutexes 2011-01-12 05:05:39 -05:00
proc.c ACPI / PM: Use device wakeup flags for handling ACPI wakeup devices 2011-01-07 01:17:41 -05:00
processor_core.c ACPI: processor: fix processor_physically_present in UP kernel 2011-05-29 02:17:56 -04:00
processor_driver.c ACPI: use __init where possible in processor driver 2011-03-02 20:56:53 -05:00
processor_idle.c x86 idle: clarify AMD erratum 400 workaround 2011-05-29 03:38:57 -04:00
processor_perflib.c [CPUFREQ] use dynamic debug instead of custom infrastructure 2011-05-04 11:50:57 -04:00
processor_thermal.c ACPI thermal: remove two unused functions 2010-12-11 02:01:47 -05:00
processor_throttling.c Merge branch 'x86/urgent' into x86-mm 2011-05-02 14:16:47 +02:00
reboot.c ACPI: Make sure the FADT is at least rev 2 before using the reset register 2011-03-22 23:52:49 -04:00
sbs.c ACPI: delete CONFIG_ACPI_PROCFS_POWER and power procfs I/F in 2.6.39 2011-01-12 00:36:17 -05:00
sbshc.c sbshc: acpi_device_class "smbus_host_controller" too long 2010-05-06 02:38:25 -04:00
sbshc.h
scan.c ACPI / PM: Avoid infinite recurrence while registering power resources 2011-04-26 11:33:18 +02:00
sleep.c Merge branch 'linus' into release 2011-03-23 02:34:54 -04:00
sleep.h ACPI: static sleep_states[] and acpi_gts_bfs_check 2010-10-19 13:44:37 -04:00
sysfs.c ACPI: Cleanup custom_method debug stuff 2011-05-29 01:50:04 -04:00
tables.c ACPI: delete the "acpi=ht" boot option 2010-03-14 20:58:38 -04:00
thermal.c ACPI / Fan: Rework the handling of power resources 2011-01-12 04:48:45 -05:00
utils.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
video_detect.c ACPI / Video: Probe for output switch method when searching video devices. 2011-02-12 01:40:16 +01:00
video.c treewide: fix a few typos in comments 2011-05-10 10:16:21 +02:00
wakeup.c ACPI / Wakeup: Enable button GPEs unconditionally during initialization 2011-02-12 01:39:53 +01:00