From: Kyle Meyer <kyle.meyer@hpe.com>
To: "Luck, Tony" <tony.luck@intel.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
"corbet@lwn.net" <corbet@lwn.net>,
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Subject: Re: [PATCH v2] mm/memory-failure: Support disabling soft offline for HugeTLB pages
Date: Tue, 16 Sep 2025 12:59:32 -0500 [thread overview]
Message-ID: <aMmlhPghbpnlCZ09@hpe.com> (raw)
In-Reply-To: <SJ1PR11MB60831F028E2FEB6B5A3390D9FC14A@SJ1PR11MB6083.namprd11.prod.outlook.com>
On Tue, Sep 16, 2025 at 03:20:49PM +0000, Luck, Tony wrote:
> >> > Reported-by: Shawn Fan <shawn.fan@intel.com>
> >>
> >> Interesting. What did Shawn report? (Closes:!).
> >
> > Tony or Shawn, could you please point me to the original report? Thanks!
>
> Original report is internal to Intel, so no useful link for the community (but
> I still wanted to give credit).
>
> Recap of original problem is that some BIOS keep track of error threshold
> per-rank and use this GHES mechanism to report threshold exceeded on
> the rank.
>
> Systems that stay up a long time can accumulate enough soft errors
> to trigger this threshold. But the action of taking a page offline isn't
> going to help. For a 4K page this is merely annoying. For 1G page
> it can mess things up badly.
>
> My original patch for this just skipped the GHES->offline process
> for huge pages. But I wasn't aware of the sysctl control. That provides
> a better solution.
Tony, does that mean you're OK with using the existing sysctl interface? If
so, I'll just send a separate patch to update the sysfs-memory-page-offline
documentation and drop the rest.
Thanks,
Kyle Meyer
next prev parent reply other threads:[~2025-09-16 18:00 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-09-16 0:27 Kyle Meyer
2025-09-16 3:16 ` Andrew Morton
2025-09-16 7:14 ` Kyle Meyer
2025-09-16 15:20 ` Luck, Tony
2025-09-16 17:59 ` Kyle Meyer [this message]
2025-09-16 18:08 ` Luck, Tony
2025-09-17 6:35 ` Fan, Shawn
2025-09-17 18:59 ` Kyle Meyer
2025-09-18 8:34 ` Shuai Xue
2025-09-18 15:48 ` Jiaqi Yan
2025-09-16 10:12 ` Anshuman Khandual
2025-09-17 7:02 ` David Hildenbrand
2025-09-17 18:51 ` Kyle Meyer
2025-09-17 19:05 ` David Hildenbrand
2025-09-17 19:32 ` Jiaqi Yan
2025-09-17 19:54 ` Luck, Tony
2025-09-17 21:39 ` Kyle Meyer
2025-09-17 22:15 ` Jiaqi Yan
2025-09-21 11:36 ` Anshuman Khandual
2025-09-23 6:03 ` Kyle Meyer
2025-09-21 11:25 ` Anshuman Khandual
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