From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from stravinsky.debian.org (stravinsky.debian.org [82.195.75.108]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A60B0407CC8; Wed, 17 Jun 2026 13:33:54 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=82.195.75.108 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781703237; cv=none; b=P+9oGzjw75xyC/jdXbhFdA14f1LqAjze3AMFafk92FCpCMVcl9Hv8xBGiUrdAL7pjhdL3poPrDUB+MOVKlrb33itrVm/gEGz+hlpSsWcPwsJu88VyTg28uJBCxrQNlwZLdLWJ2jdqiRSsF41mmKg5BOBeHQh86LMH4w9vULlOWc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781703237; c=relaxed/simple; bh=DCcwS/Af0/gCwvOSwGbr70DNuzjaSOMbXeG1pza3/9A=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=Q8n4tt6mWF0oqwV/c7W3ZwADp1euzJV3MxMS/c9i03CikXJ5RtCbHwn9GjYODc1mJAaivp3p9q6yollGWItON1p4axypeGUYwaRKbXzbElz/IIG46i84InzX9v26DzRoEl6CpFZFi6mDUgOD3RMnqGLoi/mVYVNuLcamll1fg1k= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=debian.org; spf=pass smtp.mailfrom=debian.org; dkim=pass (2048-bit key) header.d=debian.org header.i=@debian.org header.b=kl+w8DmB; arc=none smtp.client-ip=82.195.75.108 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=debian.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=debian.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=debian.org header.i=@debian.org header.b="kl+w8DmB" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=debian.org; s=smtpauto.stravinsky; h=X-Debian-User:Cc:To:In-Reply-To:References: Message-Id:Content-Transfer-Encoding:Content-Type:MIME-Version:Subject:Date: From:Reply-To:Content-ID:Content-Description; bh=SlTP4v2bni27T+dN93Gnu5TExfReIwH1JsMfVrv7mfM=; b=kl+w8DmBKc4wQhjE7PZ3ca0tgu J/sxm4NzcJ8Bm6zSz2NFpOXIsaydQ32wMDMTDYbmgSASLUX40RMK0J/ZtXFQbv/NbAHiZr8o2ScnK 3WJo5Hkl+ZqmShN1lQwI//Yfl9xgdV9mX8Ui7TJhg5kAJvganCx7yr0OHvbcIIpqexpJyyVXXGh1t /EjKsyMmiGuRaffcFC63apK4Eb7AxHGPrKKuGlX9L+wDmmcuMKgTfODyIXsDvMUEH7qB4TtICXgm0 ooyhUuaCO869KfHnETOi0Xy6DfKnGoc8w5GuEc7EtXPyFff9kFk2uYR3KeJX3813am+7di5+ODDcu iN/olMMA==; Received: from authenticated-user by stravinsky.debian.org with esmtpsa (TLS1.3:ECDHE_X25519__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim 4.96) (envelope-from ) id 1wZqOk-00EeVE-1T; Wed, 17 Jun 2026 13:33:42 +0000 From: Breno Leitao Date: Wed, 17 Jun 2026 06:32:48 -0700 Subject: [PATCH 2/2] vmcore_info: track fatal hardware errors Precedence: bulk X-Mailing-List: linux-acpi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260617-hwerr-v1-2-ff131cd6203c@debian.org> References: <20260617-hwerr-v1-0-ff131cd6203c@debian.org> In-Reply-To: <20260617-hwerr-v1-0-ff131cd6203c@debian.org> To: "Rafael J. Wysocki" , Tony Luck , Borislav Petkov , Hanjun Guo , Mauro Carvalho Chehab , Shuai Xue , Len Brown , Andrew Morton , Baoquan He , Mike Rapoport , Pasha Tatashin , Pratyush Yadav , Dave Young Cc: linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org, riel@surriel.com, caggio@meta.com, kexec@lists.infradead.org, Breno Leitao , kernel-team@meta.com X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=openpgp-sha256; l=1404; i=leitao@debian.org; h=from:subject:message-id; bh=DCcwS/Af0/gCwvOSwGbr70DNuzjaSOMbXeG1pza3/9A=; b=owEBbQKS/ZANAwAIATWjk5/8eHdtAcsmYgBqMqIkHd3YyPVlkIneRAlRDF0MNSBVdeDObpXEj 5pGdayCaROJAjMEAAEIAB0WIQSshTmm6PRnAspKQ5s1o5Of/Hh3bQUCajKiJAAKCRA1o5Of/Hh3 bZQoD/474ejbOPMswWEZKvzjO5yiWKb7EtubDsMelEZDSF2C+kjeJQdIQhd1xwvjtuI3tPVVvSk jOKouxMf7XcYmbcXXLzmyP6lyYiOh9sQM7zSpwP/OLksDhsDZA4btJivk4yVqfbSf/2qCmR/wUz vfcp9kDDzYunhKjcdRF9lvV2BBWdeC0kHA5jtczl4fzE4ZFkQqq0t5Lkj+iCCxEpT+GyH4447zS 4GLmqCmyJQS8EAqOuaUQe0ZXANh0QniWjuj/v8RBnwlCXKE7oFbC3+OAP3PfulU0Qo+VAcAXW5y vHOkicdeRGVFqhmZQS+i0x4P0yryhPe55IPzQ4542vPNNv+mpIynY/n+2pgFsMiWu/Y/sJWBpwr RnHFSISfFR7Go7jjfkODBFQEC7+eAjBl9r17drmAIQlUrmOD5E0U+uKuTSYd93XvonH+1pY8E6T oYzoQaiCJVU9O0xTN4GWhm7CBlfgITd9jBKWojCUlphPOwUIewnyLeTdcvHkPEpxks9L5GvzI/n td4Qn31FS+qC0QNmak9d6jOkVVyZcPtMKpfaYd20FW/Te/bIIcbsyQxNhsdi5jKrCX4+QiVEtwT T4dJJjTovGiEHQMfYwUWfWR4JHS8V+cKF3rYwu+gshXGk4wLIXnmx9m+cO17mUXF3bu6BQhOZDq ru8b7DMx1P8Gsfg== X-Developer-Key: i=leitao@debian.org; a=openpgp; fpr=AC8539A6E8F46702CA4A439B35A3939FFC78776D X-Debian-User: leitao Fatal (panic-severity) hardware errors reported through APEI/GHES are the ones most likely to have caused a crash, but hwerr_data did not record them. Add a HWERR_FATAL bucket and bump it from ghes_log_hwerr() when a GHES_SEV_PANIC error is seen, so crash tooling can tell from the vmcore that a fatal hardware error preceded the crash. Tools reading hwerr_data gain one entry (HWERR_FATAL). Signed-off-by: Breno Leitao --- drivers/acpi/apei/ghes.c | 5 +++++ include/uapi/linux/vmcore.h | 1 + 2 files changed, 6 insertions(+) diff --git a/drivers/acpi/apei/ghes.c b/drivers/acpi/apei/ghes.c index f0f9f1529e7aa..5a9e16bdca2b6 100644 --- a/drivers/acpi/apei/ghes.c +++ b/drivers/acpi/apei/ghes.c @@ -877,6 +877,11 @@ EXPORT_SYMBOL_NS_GPL(cxl_cper_kfifo_get, "CXL"); static void ghes_log_hwerr(int sev, guid_t *sec_type) { + if (sev == GHES_SEV_PANIC) { + hwerr_log_error_type(HWERR_FATAL); + return; + } + if (sev != GHES_SEV_RECOVERABLE) return; diff --git a/include/uapi/linux/vmcore.h b/include/uapi/linux/vmcore.h index 2ba89fafa518a..c774b037603e2 100644 --- a/include/uapi/linux/vmcore.h +++ b/include/uapi/linux/vmcore.h @@ -21,6 +21,7 @@ enum hwerr_error_type { HWERR_RECOV_PCI, HWERR_RECOV_CXL, HWERR_RECOV_OTHERS, + HWERR_FATAL, /* fatal hardware errors */ HWERR_RECOV_MAX, }; -- 2.53.0-Meta