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authorHuang Ying <ying.huang@intel.com>2010-05-18 02:35:21 -0400
committerLen Brown <len.brown@intel.com>2010-05-19 22:41:31 -0400
commita08f82d08053fb6e3aa3635c2c26456d96337c8b (patch)
treeed68e8951610b66c6971cdb1fc446eb9e53e0422 /Documentation
parentd334a49113a4a33109fd24e46073280ecd1bea0d (diff)
ACPI, APEI, Error Record Serialization Table (ERST) support
ERST is a way provided by APEI to save and retrieve hardware error record to and from some simple persistent storage (such as flash). The Linux kernel support implementation is quite simple and workable in NMI context. So it can be used to save hardware error record into flash in hardware error exception or NMI handler, where other more complex persistent storage such as disk is not usable. After saving hardware error records via ERST in hardware error exception or NMI handler, the error records can be retrieved and logged into disk or network after a clean reboot. For more information about ERST, please refer to ACPI Specification version 4.0, section 17.4. This patch incorporate fixes from Jin Dongming. Signed-off-by: Huang Ying <ying.huang@intel.com> Signed-off-by: Andi Kleen <ak@linux.intel.com> CC: Jin Dongming <jin.dongming@np.css.fujitsu.com> Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/kernel-parameters.txt4
1 files changed, 4 insertions, 0 deletions
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 47a0e1ba5e64..42d77735fd45 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -750,6 +750,10 @@ and is between 256 and 4096 characters. It is defined in the file
750 Default value is 0. 750 Default value is 0.
751 Value can be changed at runtime via /selinux/enforce. 751 Value can be changed at runtime via /selinux/enforce.
752 752
753 erst_disable [ACPI]
754 Disable Error Record Serialization Table (ERST)
755 support.
756
753 ether= [HW,NET] Ethernet cards parameters 757 ether= [HW,NET] Ethernet cards parameters
754 This option is obsoleted by the "netdev=" option, which 758 This option is obsoleted by the "netdev=" option, which
755 has equivalent usage. See its documentation for details. 759 has equivalent usage. See its documentation for details.