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| author | Yazen Ghannam <Yazen.Ghannam@amd.com> | 2016-11-16 00:13:53 +0300 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2016-11-16 11:57:11 +0300 |
| commit | 18807ddb7f88d4ac3797302bafb18143d573e66f (patch) | |
| tree | d135705d42fe141c570c036f6fbc1ffbc32b2f84 /arch/x86/include/asm/amd_nb.h | |
| parent | 859af13a103fc99a9a62064ef8f05f7d9ee58609 (diff) | |
| download | linux-18807ddb7f88d4ac3797302bafb18143d573e66f.tar.xz | |
x86/mce/AMD: Reset Threshold Limit after logging error
The error count field in MCA_MISC does not get reset by hardware when the
threshold has been reached. Software is expected to reset it. Currently,
the threshold limit only gets reset during init or when a user writes to
sysfs.
If the user is not monitoring threshold interrupts and resetting
the limit then the user will only see 1 interrupt when the limit is first
hit. So if, for example, the limit is set to 10 then only 1 interrupt will
be recorded after 10 errors even if 100 errors have occurred. The user may
then assume that only 10 errors have occurred.
Signed-off-by: Yazen Ghannam <Yazen.Ghannam@amd.com>
Cc: Aravind Gopalakrishnan <aravindksg.lkml@gmail.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Cc: x86-ml <x86@kernel.org>
Link: http://lkml.kernel.org/r/1479244433-69267-1-git-send-email-Yazen.Ghannam@amd.com
Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86/include/asm/amd_nb.h')
0 files changed, 0 insertions, 0 deletions