RE: [PATCH] x86/mce: Add Skylake quirk for patrol scrub reported errors

2021-03-24 Thread Luck, Tony
> Yeah, into > > fd258dc4442c ("x86/mce: Add Skylake quirk for patrol scrub reported errors") Thanks ... my memory is failing, and I forgot that the patch had been improved and moved from core.c (where I looked for it) into severity.c -Tony

Re: [PATCH] x86/mce: Add Skylake quirk for patrol scrub reported errors

2021-03-24 Thread Borislav Petkov
On Mon, Mar 22, 2021 at 03:37:10PM -0700, Tony Luck wrote: > From: Youquan Song > > Skylake has a mode where the system administrator can use a BIOS setup > option to request that the memory controller report uncorrected errors > found by the patrol scrubber as corrected. This results in them be

[PATCH] x86/mce: Add Skylake quirk for patrol scrub reported errors

2021-03-22 Thread Tony Luck
From: Youquan Song Skylake has a mode where the system administrator can use a BIOS setup option to request that the memory controller report uncorrected errors found by the patrol scrubber as corrected. This results in them being signalled using CMCI, which is less disruptive than a machine che

Re: [PATCH] x86/mce: Add Skylake quirk for patrol scrub reported errors

2020-06-17 Thread Luck, Tony
On Wed, Jun 17, 2020 at 09:41:58AM +0200, Borislav Petkov wrote: > On Tue, Jun 16, 2020 at 10:33:08PM +, Luck, Tony wrote: > > If the BIOS option is left in the default setting, uncorrectable errors > > found > > by the patrol scrubber are reported with a machine check. Those MSCOD > > and MCA

Re: [PATCH] x86/mce: Add Skylake quirk for patrol scrub reported errors

2020-06-17 Thread Borislav Petkov
On Tue, Jun 16, 2020 at 10:33:08PM +, Luck, Tony wrote: > If the BIOS option is left in the default setting, uncorrectable errors found > by the patrol scrubber are reported with a machine check. Those MSCOD > and MCACOD signatures are the same ... but that's not important because > MCi_STATUS.

RE: [PATCH] x86/mce: Add Skylake quirk for patrol scrub reported errors

2020-06-16 Thread Luck, Tony
> Two things: can that error type be detected when #MC gets raised, i.e., in > do_machine_check() as part of scanning all banks? If the BIOS option is left in the default setting, uncorrectable errors found by the patrol scrubber are reported with a machine check. Those MSCOD and MCACOD signatures

Re: [PATCH] x86/mce: Add Skylake quirk for patrol scrub reported errors

2020-06-16 Thread Borislav Petkov
On Mon, Jun 15, 2020 at 11:40:56AM -0700, Tony Luck wrote: > From: Youquan Song > > Skylake has a mode where the system administrator can use a BIOS setup > option to request that the memory controller report uncorrected errors > found by the patrol scrubber as corrected. This results in them be

[PATCH] x86/mce: Add Skylake quirk for patrol scrub reported errors

2020-06-15 Thread Tony Luck
From: Youquan Song Skylake has a mode where the system administrator can use a BIOS setup option to request that the memory controller report uncorrected errors found by the patrol scrubber as corrected. This results in them being signalled using CMCI, which is less disruptive than a machine che