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From: Tracy Smith <tlsmith3777@gmail.com>
To: york.sun@nxp.com
Cc: bp@alien8.de, linux-edac@vger.kernel.org,
	util-linux@vger.kernel.org, lkml <linux-kernel@vger.kernel.org>
Subject: Layerscape behavior when a UE is detected
Date: Wed, 5 Dec 2018 16:53:46 -0600	[thread overview]
Message-ID: <CAChUvXNSGosbBbiBh-MF8FsnKpL3jMaS-fr_BzQAjEcPCWi7Ew@mail.gmail.com> (raw)
In-Reply-To: <AM0PR04MB3971DE1C9A0B3D6C938CBADD9AA80@AM0PR04MB3971.eurprd04.prod.outlook.com>

>> Question 4) If so, will a panic ever be called if there is a hardware
>> uncorrectable memory failure?

>No. It is up to upper layer of EDAC driver. Layerscape driver only reports CEs and UEs.

Just to be clear, the upper layer of the EDAC driver will or will not
panic when a UE is detected on layerscape?

If there is no panic by the upper layer and no reset triggered by the
layerscape CPLD or memory controller, what happens on layerscape when
a UE is detected by the memory controller?

Forcing a UE by grounding a dataline caused a reset on layerscape
after a few seconds, but no panic. It is unclear why it reset, but it
appears as though a WDT was tripped. The UE was reported by EDAC and
seen in the log.

  reply	other threads:[~2018-12-05 22:54 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <BYAPR02MB431115EC4735AE5B7E29F2CEF6DC0@BYAPR02MB4311.namprd02.prod.outlook.com>
     [not found] ` <BYAPR02MB43110062F32BFDEA712AB371F6DC0@BYAPR02MB4311.namprd02.prod.outlook.com>
     [not found]   ` <CAChUvXMp6S6MBY_LmrfgdPcctQw70FoyxbiHeFqK+5fQx5omCw@mail.gmail.com>
2018-11-16 17:07     ` FW: edac driver initialization, interrupt, & debug Tracy Smith
2018-11-17 14:05       ` Borislav Petkov
2018-11-17 23:22         ` Tracy Smith
2018-11-18  1:05           ` Steve Inkpen
2018-11-19 16:37             ` Tracy Smith
2018-11-19 16:48               ` York Sun
2018-11-21 17:01                 ` Tracy Smith
2018-11-21 22:02                   ` Tracy Smith
2018-11-28 18:48                   ` edac driver injection of uncorrected errors & utils Tracy Smith
2018-11-28 19:06                     ` York Sun
2018-11-28 19:11                       ` Tracy Smith
2018-11-28 19:24                         ` York Sun
2018-11-28 22:14                           ` Tracy Smith
2018-11-28 23:44                             ` Borislav Petkov
2018-12-05 16:37                               ` Tracy Smith
2018-12-05 17:12                                 ` Borislav Petkov
2018-12-05 17:59                                 ` York Sun
2018-12-05 21:59                                   ` Patrol scrub questions Tracy Smith
2018-12-05 22:12                                     ` York Sun
2018-12-05 22:53                                       ` Tracy Smith [this message]
2018-12-05 22:57                                         ` Layerscape behavior when a UE is detected York Sun
2018-12-05 23:41                                           ` Layerscape UE detected and no EDAC panic Tracy Smith
2018-11-19 16:24           ` FW: edac driver initialization, interrupt, & debug York Sun
2018-11-19 15:55         ` York Sun

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