BIOS can supply a GHES error record that reports that the corrected error threshold has been exceeded. Linux will attempt to soft offline the page in response. But "exceeded threshold" has many interpretations. Some BIOS versions accumulate error counts per-rank, and then report threshold exceeded when the number of errors crosses a threshold for the rank. Taking a page offline in this case is unlikely to solve any problems. But losing a 4KB page will have little impact on the overall system. On the other hand, taking a huge page offline will have significant impact (and still not solve any problems). Check if the GHES record refers to a huge page. Skip the offline process if the page is huge. Reported-by: Shawn Fan Signed-off-by: Tony Luck --- drivers/acpi/apei/ghes.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/drivers/acpi/apei/ghes.c b/drivers/acpi/apei/ghes.c index a0d54993edb3..bacfebdd4969 100644 --- a/drivers/acpi/apei/ghes.c +++ b/drivers/acpi/apei/ghes.c @@ -540,8 +540,16 @@ static bool ghes_handle_memory_failure(struct acpi_hest_generic_data *gdata, /* iff following two events can be handled properly by now */ if (sec_sev == GHES_SEV_CORRECTED && - (gdata->flags & CPER_SEC_ERROR_THRESHOLD_EXCEEDED)) + (gdata->flags & CPER_SEC_ERROR_THRESHOLD_EXCEEDED)) { + unsigned long pfn = PHYS_PFN(mem_err->physical_addr); + struct page *page = pfn_to_page(pfn); + struct folio *folio = page_folio(page); + + if (folio_test_hugetlb(folio)) + return false; + flags = MF_SOFT_OFFLINE; + } if (sev == GHES_SEV_RECOVERABLE && sec_sev == GHES_SEV_RECOVERABLE) flags = sync ? MF_ACTION_REQUIRED : 0; -- 2.51.0