lkml.org 
[lkml]   [2017]   [Jun]   [14]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
SubjectRe: [LKP] [lkp-robot] [EDAC, sb_edac] e2f747b1f4: kmsg.EDAC_sbridge:Failed_to_register_device_with_error
On Mon, Jun 12, 2017 at 01:11:13PM +0800, Ye Xiaolong wrote:
> Confirmed the error is gone with qiuxu's fix patch.
>
> Tested-by: From: Ye Xiaolong <xiaolong.ye@intel.com>

Thanks guys, I massaged it a bit and ended up applying this:

---
From: Qiuxu Zhuo <qiuxu.zhuo@intel.com>
Date: Thu, 8 Jun 2017 19:33:51 +0800
Subject: [PATCH] EDAC, sb_edac: Avoid creating SOCK memory controller

Xiaolong Ye reported the following failure on Broadwell D server:

EDAC sbridge: Some needed devices are missing
EDAC MC: Removed device 0 for sbridge_edac.c Broadwell SrcID#0_Ha#0: DEV 0000:ff:12.0
EDAC sbridge: Couldn't find mci handler
EDAC sbridge: Failed to register device with error -19.

Broadwell D (only IMC0 per socket) and Broadwell X (IMC0 and IMC1 per
socket) use the same PCI device IDs for IMC0 per socket, then they
share pci_dev_descr_broadwell_table (n_imcs_per_sock=2). In this case,
Broadwell D wrongly creates the nonexistent SOCK EDAC memory controller
and reports above error messages, since it has no IMC1 per socket.

Avoid creating the nonexistent SOCK memory controller.

Reported-and-tested-by: Xiaolong Ye <xiaolong.ye@intel.com>
Signed-off-by: Qiuxu Zhuo <qiuxu.zhuo@intel.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Link: http://lkml.kernel.org/r/20170608113351.25323-1-qiuxu.zhuo@intel.com
[ Massage. ]
Signed-off-by: Borislav Petkov <bp@suse.de>
---
drivers/edac/sb_edac.c | 5 +++++
1 file changed, 5 insertions(+)

diff --git a/drivers/edac/sb_edac.c b/drivers/edac/sb_edac.c
index 89fd6bd64df6..80d860cb0746 100644
--- a/drivers/edac/sb_edac.c
+++ b/drivers/edac/sb_edac.c
@@ -2260,6 +2260,10 @@ static int sbridge_get_onedevice(struct pci_dev **prev,
next_imc:
sbridge_dev = get_sbridge_dev(bus, dev_descr->dom, multi_bus, sbridge_dev);
if (!sbridge_dev) {
+
+ if (dev_descr->dom == SOCK)
+ goto out_imc;
+
sbridge_dev = alloc_sbridge_dev(bus, dev_descr->dom, table);
if (!sbridge_dev) {
pci_dev_put(pdev);
@@ -2285,6 +2289,7 @@ static int sbridge_get_onedevice(struct pci_dev **prev,
if (dev_descr->dom == SOCK && i < table->n_imcs_per_sock)
goto next_imc;

+out_imc:
/* Be sure that the device is enabled */
if (unlikely(pci_enable_device(pdev) < 0)) {
sbridge_printk(KERN_ERR,
--
2.13.0
--
Regards/Gruss,
Boris.

Good mailing practices for 400: avoid top-posting and trim the reply.

\
 
 \ /
  Last update: 2017-06-14 11:56    [W:0.052 / U:0.332 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site