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- .. SPDX-License-Identifier: GPL-2.0
- ===============================================================
- Configurable sysfs parameters for the x86-64 machine check code
- ===============================================================
- Machine checks report internal hardware error conditions detected
- by the CPU. Uncorrected errors typically cause a machine check
- (often with panic), corrected ones cause a machine check log entry.
- Machine checks are organized in banks (normally associated with
- a hardware subsystem) and subevents in a bank. The exact meaning
- of the banks and subevent is CPU specific.
- mcelog knows how to decode them.
- When you see the "Machine check errors logged" message in the system
- log then mcelog should run to collect and decode machine check entries
- from /dev/mcelog. Normally mcelog should be run regularly from a cronjob.
- Each CPU has a directory in /sys/devices/system/machinecheck/machinecheckN
- (N = CPU number).
- The directory contains some configurable entries. See
- Documentation/ABI/testing/sysfs-mce for more details.
- TBD document entries for AMD threshold interrupt configuration
- For more details about the x86 machine check architecture
- see the Intel and AMD architecture manuals from their developer websites.
- For more details about the architecture
- see http://one.firstfloor.org/~andi/mce.pdf
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