4.9-stable review patch. If anyone has any objections, please let me know.
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From: Tony Luck tony.luck@intel.com
commit 432de7fd7630c84ad24f1c2acd1e3bb4ce3741ca upstream.
The count of errors is picked up from bits 52:38 of the machine check bank status register. But this is the count of *corrected* errors. If an uncorrected error is being logged, the h/w sets this field to 0. Which means that when edac_mc_handle_error() is called, the EDAC core will carefully add zero to the appropriate uncorrected error counts.
Signed-off-by: Tony Luck tony.luck@intel.com [ Massage commit message. ] Signed-off-by: Borislav Petkov bp@suse.de Cc: stable@vger.kernel.org Cc: Aristeu Rozanski aris@redhat.com Cc: Mauro Carvalho Chehab mchehab@kernel.org Cc: Qiuxu Zhuo qiuxu.zhuo@intel.com Cc: linux-edac linux-edac@vger.kernel.org Link: http://lkml.kernel.org/r/20180928213934.19890-1-tony.luck@intel.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/edac/i7core_edac.c | 1 + drivers/edac/sb_edac.c | 1 + drivers/edac/skx_edac.c | 1 + 3 files changed, 3 insertions(+)
--- a/drivers/edac/i7core_edac.c +++ b/drivers/edac/i7core_edac.c @@ -1711,6 +1711,7 @@ static void i7core_mce_output_error(stru u32 errnum = find_first_bit(&error, 32);
if (uncorrected_error) { + core_err_cnt = 1; if (ripv) tp_event = HW_EVENT_ERR_FATAL; else --- a/drivers/edac/sb_edac.c +++ b/drivers/edac/sb_edac.c @@ -2934,6 +2934,7 @@ static void sbridge_mce_output_error(str recoverable = GET_BITFIELD(m->status, 56, 56);
if (uncorrected_error) { + core_err_cnt = 1; if (ripv) { type = "FATAL"; tp_event = HW_EVENT_ERR_FATAL; --- a/drivers/edac/skx_edac.c +++ b/drivers/edac/skx_edac.c @@ -897,6 +897,7 @@ static void skx_mce_output_error(struct recoverable = GET_BITFIELD(m->status, 56, 56);
if (uncorrected_error) { + core_err_cnt = 1; if (ripv) { type = "FATAL"; tp_event = HW_EVENT_ERR_FATAL;