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[175.34.62.5]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-29bceb27504sm125763395ad.61.2025.12.01.06.13.08 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 01 Dec 2025 06:13:12 -0800 (PST) Content-Type: multipart/mixed; boundary="------------XUASwuusH8ii6etp0obdtpr5" Message-ID: <12b7baee-1d6d-440a-a119-971b47d7f3ad@redhat.com> Date: Tue, 2 Dec 2025 00:13:06 +1000 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 0/5] acpi/ghes: Error object handling improvement To: Mauro Carvalho Chehab Cc: qemu-arm@nongnu.org, qemu-devel@nongnu.org, jonathan.cameron@huawei.com, armbru@redhat.com, mst@redhat.com, imammedo@redhat.com, anisinha@redhat.com, gengdongjiu1@gmail.com, peter.maydell@linaro.org, pbonzini@redhat.com, shan.gavin@gmail.com References: <20251127004435.2098335-1-gshan@redhat.com> <20251201131729.615abe68@foz.lan> Content-Language: en-US From: Gavin Shan In-Reply-To: <20251201131729.615abe68@foz.lan> Received-SPF: pass client-ip=170.10.133.124; envelope-from=gshan@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org This is a multi-part message in MIME format. --------------XUASwuusH8ii6etp0obdtpr5 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Hi Mauro, On 12/1/25 10:17 PM, Mauro Carvalho Chehab wrote: > On Thu, 27 Nov 2025 10:44:30 +1000 > Gavin Shan wrote: > >> This series is curved from that for memory error handling improvement >> [1] based on the received comments, to improve the error object handling >> in various aspects. >> >> [1] https://lists.nongnu.org/archive/html/qemu-arm/2025-11/msg00534.html >> >> Gavin Shan (5): >> acpi/ghes: Automate data block cleanup in acpi_ghes_memory_errors() >> acpi/ghes: Abort in acpi_ghes_memory_errors() if necessary >> target/arm/kvm: Exit on error from acpi_ghes_memory_errors() >> acpi/ghes: Bail early on error from get_ghes_source_offsets() >> acpi/ghes: Use error_fatal in acpi_ghes_memory_errors() > > Patch series look ok on my eyes. > > Reviewed-by: Mauro Carvalho Chehab > Thanks. > - > > Btw, what setup are you using to test memory errors? It would be > nice to have it documented somewhere, maybe at > docs/specs/acpi_hest_ghes.rst. > I don't think docs/specs/acpi_hest_ghes.rst is the right place for that as it's for specifications. I'm sharing how this is tested here to make the thread complete. - Both host and guest has 4KB page size - Start the guest by the following command lines /home/gavin/sandbox/qemu.main/build/qemu-system-aarch64 \ -accel kvm -machine virt,gic-version=host,nvdimm=on,ras=on \ -cpu host -smp maxcpus=8,cpus=8,sockets=2,clusters=2,cores=2,threads=1 \ -m 4096M,slots=16,maxmem=128G \ -object memory-backend-ram,id=mem0,size=4096M \ -numa node,nodeid=0,cpus=0-7,memdev=mem0 \ -L /home/gavin/sandbox/qemu.main/build/pc-bios \ -monitor none -serial mon:stdio -nographic \ -gdb tcp::6666 -qmp tcp:localhost:5555,server,wait=off \ -bios /home/gavin/sandbox/qemu.main/build/pc-bios/edk2-aarch64-code.fd \ -boot c \ -device pcie-root-port,bus=pcie.0,chassis=1,id=pcie.1 \ -device pcie-root-port,bus=pcie.0,chassis=2,id=pcie.2 \ -device pcie-root-port,bus=pcie.0,chassis=3,id=pcie.3 \ : \ -device pcie-root-port,bus=pcie.0,chassis=16,id=pcie.16 \ -drive file=/home/gavin/sandbox/images/disk.qcow2,if=none,id=drive0 \ -device virtio-blk-pci,id=virtblk0,bus=pcie.1,drive=drive0,num-queues=4 \ -netdev tap,id=tap1,vhost=true,script=/etc/qemu-ifup,downscript=/etc/qemu-ifdown \ -device virtio-net-pci,bus=pcie.8,netdev=tap1,mac=52:54:00:f1:26:b0 - Trigger 'victim -d' in the guest guest$ ./victim -d physical address of (0xffff8d9b7000) = 0x1251d6000 Hit any key to trigger error: - Inject error to the GPA. "test.c" is attached host$ ./test 0x1251d6000 - Press enter on the guest so that 'victim' continues its execution [ 435.467481] EDAC MC0: 1 UE unknown on unknown memory ( page:0x1251d6 offset:0x0 grain:1 - APEI location: ) [ 435.467542] {1}[Hardware Error]: Hardware error from APEI Generic Hardware Error Source: 0 [ 435.467543] {1}[Hardware Error]: event severity: recoverable [ 435.467544] {1}[Hardware Error]: Error 0, type: recoverable [ 435.467545] {1}[Hardware Error]: section_type: memory error [ 435.467546] {1}[Hardware Error]: physical_address: 0x00000001251d6000 [ 435.467547] {1}[Hardware Error]: error_type: 0, unknown [ 435.468380] Memory failure: 0x1251d6: recovery action for dirty LRU page: Recovered Bus error (core dumped) Thanks, Gavin > Thanks, > Mauro > --------------XUASwuusH8ii6etp0obdtpr5 Content-Type: text/x-csrc; charset=UTF-8; name="test.c" Content-Disposition: attachment; filename="test.c" Content-Transfer-Encoding: base64 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