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 MIME-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org We observe an oops in the skx_edac module during boot. Examining /var/log/messages: [ 3401.985757] EDAC MC0: Giving out device to module skx_edac controller Skylake Socket#0 IMC#0 [ 3401.985887] EDAC MC1: Giving out device to module skx_edac controller Skylake Socket#0 IMC#1 [ 3401.986014] EDAC MC2: Giving out device to module skx_edac controller Skylake Socket#1 IMC#0 ... [ 3401.987318] EDAC MC13: Giving out device to module skx_edac controller Skylake Socket#0 IMC#1 [ 3401.987435] EDAC MC14: Giving out device to module skx_edac controller Skylake Socket#1 IMC#0 [ 3401.987556] EDAC MC15: Giving out device to module skx_edac controller Skylake Socket#1 IMC#1 [ 3401.987579] Too many memory controllers: 16 [ 3402.042614] EDAC MC: Removed device 0 for skx_edac Skylake Socket#0 IMC#0 We observe there are two memory controllers per socket, with a limit of 16. Raise the maximum number of memory controllers from 16 to 2 * MAX_NUMNODES (1024). Cc: Borislav Petkov Cc: Mauro Carvalho Chehab Cc: linux-edac@vger.kernel.org Cc: linux-kernel@vger.kernel.org Acked-by: Russ Anderson Signed-off-by: Justin Ernst --- include/linux/edac.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/include/linux/edac.h b/include/linux/edac.h index bffb97828ed6..958d69332c1d 100644 --- a/include/linux/edac.h +++ b/include/linux/edac.h @@ -17,6 +17,7 @@ #include #include #include +#include #define EDAC_DEVICE_NAME_LEN 31 @@ -670,6 +671,6 @@ struct mem_ctl_info { /* * Maximum number of memory controllers in the coherent fabric. */ -#define EDAC_MAX_MCS 16 +#define EDAC_MAX_MCS 2 * MAX_NUMNODES #endif -- 2.12.3