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| author | Huang Ying <ying.huang@intel.com> | 2010-12-07 10:22:31 +0800 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2010-12-13 23:42:39 -0500 |
| commit | 32c361f574f85fa47600d84900598e2efc99082e (patch) | |
| tree | cb78461432df92afee470b04e8eb20182e8ef28d | |
| parent | f59c55d04b43bd72df8efa692dd07224fe94d1ac (diff) | |
| download | op-kernel-dev-32c361f574f85fa47600d84900598e2efc99082e.zip op-kernel-dev-32c361f574f85fa47600d84900598e2efc99082e.tar.gz | |
ACPI, APEI, Report GHES error information via printk
printk is one of the methods to report hardware errors to user space.
This patch implements hardware error reporting for GHES via printk.
Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
| -rw-r--r-- | drivers/acpi/apei/ghes.c | 25 |
1 files changed, 21 insertions, 4 deletions
diff --git a/drivers/acpi/apei/ghes.c b/drivers/acpi/apei/ghes.c index 0d505e5..51905d0 100644 --- a/drivers/acpi/apei/ghes.c +++ b/drivers/acpi/apei/ghes.c @@ -43,6 +43,7 @@ #include <linux/kdebug.h> #include <linux/platform_device.h> #include <linux/mutex.h> +#include <linux/ratelimit.h> #include <acpi/apei.h> #include <acpi/atomicio.h> #include <acpi/hed.h> @@ -255,11 +256,26 @@ static void ghes_do_proc(struct ghes *ghes) } #endif } +} - if (!processed && printk_ratelimit()) - pr_warning(GHES_PFX - "Unknown error record from generic hardware error source: %d\n", - ghes->generic->header.source_id); +static void ghes_print_estatus(const char *pfx, struct ghes *ghes) +{ + /* Not more than 2 messages every 5 seconds */ + static DEFINE_RATELIMIT_STATE(ratelimit, 5*HZ, 2); + + if (pfx == NULL) { + if (ghes_severity(ghes->estatus->error_severity) <= + GHES_SEV_CORRECTED) + pfx = KERN_WARNING HW_ERR; + else + pfx = KERN_ERR HW_ERR; + } + if (__ratelimit(&ratelimit)) { + printk( + "%s""Hardware error from APEI Generic Hardware Error Source: %d\n", + pfx, ghes->generic->header.source_id); + apei_estatus_print(pfx, ghes->estatus); + } } static int ghes_proc(struct ghes *ghes) @@ -269,6 +285,7 @@ static int ghes_proc(struct ghes *ghes) rc = ghes_read_estatus(ghes, 0); if (rc) goto out; + ghes_print_estatus(NULL, ghes); ghes_do_proc(ghes); out: |
