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From: Borislav Petkov <bp@alien8.de>
To: Jeff God <jfgaudreault@gmail.com>, Yazen Ghannam <yazen.ghannam@amd.com>
Cc: linux-edac@vger.kernel.org
Subject: Re: [GIT PULL] EDAC pile for 5.4 -> AMD family 17h, model 70h support
Date: Tue, 8 Oct 2019 13:50:41 +0200	[thread overview]
Message-ID: <20191008115041.GD14765@zn.tnic> (raw)
In-Reply-To: <CAEVokG51DtL1g+9YFK6RE=3m-wtjV1VN=vV56b5-3=K21=Jmrw@mail.gmail.com>

On Mon, Oct 07, 2019 at 08:58:30AM -0400, Jeff God wrote:
> I want to test that the ECC reporting is working on my machine (so
> that when real errors will happen one day I will get notified)
> 
> The method I described previously to generate errors by overclocking
> memory was my initial method to generate real errors, which proved to
> work well on another system with a previous generation AMD Ryzen 2700x
> and similar motherboard and same memory, but on this system it does
> not report any error, although turning off ECC in the bios showed that
> memory corruption is happening fairly quickly in this case, hence the
> conclusion that error reporting was probably not working but the
> underlying memory error correction system may be working.

Yeah, if I inject an "sw" type here, I get immediately:

[  264.740840] [Hardware Error]: Corrected error, no action required.
[  264.740942] [Hardware Error]: CPU:2 (17:1:2) MC4_STATUS[-|CE|MiscV|AddrV|-|SyndV|CECC|-|-|Scrub]: 0x9c7d410092080813
[  264.741074] [Hardware Error]: Error Addr: 0x000000006d3d483b
[  264.741169] [Hardware Error]: IPID: 0x0000000000000000, Syndrome: 0x0000000000000000
[  264.741279] [Hardware Error]: Bank 4 is reserved.
[  264.741368] [Hardware Error]: cache level: L3/GEN, mem/io: MEM, mem-tx: RD, part-proc: SRC (no timeout)

but doing a hw injection seems to do all that it should do:

[  245.658175] mce: do_inject: CPIU2, toggling...
[  245.658375] mce: prepare_msrs
[  245.658507] mce: trigger_mce: CPU2

but nothing happens.

Yazen, are we missing something here?

See upthread for details - thread is on linux-edac@.

Thx.

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette

  reply	other threads:[~2019-10-08 11:50 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <CAEVokG7TeAbmkhaxiTpsxhv1pQzqRpU=mR8gVjixb5kXo3s2Eg@mail.gmail.com>
     [not found] ` <20190924092644.GC19317@zn.tnic>
2019-10-05 16:52   ` [GIT PULL] EDAC pile for 5.4 -> AMD family 17h, model 70h support Jeff God
2019-10-07  7:16     ` Borislav Petkov
2019-10-07 12:58       ` Jeff God
2019-10-08 11:50         ` Borislav Petkov [this message]
2019-10-08 19:42           ` Ghannam, Yazen
2019-10-08 23:08             ` Jeff God
2019-10-09 10:30               ` Borislav Petkov
2019-10-09 20:31                 ` Ghannam, Yazen
2019-10-09 23:54                   ` Jeff God
2019-10-10  9:56                     ` Borislav Petkov
2019-10-10 12:48                       ` Jean-Frederic
2019-10-10 13:41                         ` Borislav Petkov
2019-10-10 19:00                           ` Ghannam, Yazen
2019-10-11  1:04                             ` Jean-Frederic
2019-10-18 23:08                               ` Jean-Frederic
2019-10-19  8:25                                 ` Borislav Petkov
2019-10-19 16:12                                   ` Jean-Frederic
2019-10-21 14:24                                     ` Ghannam, Yazen
2020-01-04 20:03                                     ` Jean-Frederic
2020-01-04 21:47                                       ` Jean-Frederic
2019-10-10  9:54                   ` Borislav Petkov

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