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Mon, 02 Nov 2026 14:32:19 -0800 (PST) Received: from localhost.localdomain (dynamic-2a00-1028-8388-a84e-10a7-164b-0039-11b7.ipv6.o2.cz. [2a00:1028:8388:a84e:10a7:164b:39:11b7]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4b2a82cebc1sm22127715e9.1.2026.11.02.14.32.18 (version=TLS1_3 cipher=TLS_CHACHA20_POLY1305_SHA256 bits=256/256); Mon, 02 Nov 2026 14:32:19 -0800 (PST) From: Josef Schlehofer To: Ritesh Harjani Cc: linuxppc-dev@lists.ozlabs.org, Madhavan Srinivasan , Michael Ellerman , Nicholas Piggin , Christophe Leroy Subject: Re: [BUG] powerpc/code-patching: IPI with interrupts disabled on e500 SMP Date: Mon, 2 Nov 2026 23:32:17 +0100 Message-ID: <20261102223218.11883-1-pepe.schlehofer@gmail.com> X-Mailer: git-send-email 2.54.0 In-Reply-To: <33tm72zl.ritesh.list@gmail.com> References: <33tm72zl.ritesh.list@gmail.com> X-Mailing-List: linuxppc-dev@lists.ozlabs.org List-Id: List-Help: List-Owner: List-Post: List-Archive: , List-Subscribe: , , Precedence: list X-Archived-By: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Spam-Status: No, score=-10.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,MAILING_LIST_MULTI, SPF_HELO_PASS,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=4.0.1 X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-26) on aws-us-west-2-korg-listserv-alma10-1 Hi Ritesh, Thanks, your diff fixes the issue on the Turris 1.1. Test results: - 6.18.55, CONFIG_JUMP_LABEL=y: Without your diff, the board hangs during boot module loading in 5/5 boots and is reset by the watchdog. With maxcpus=1, it boots. With your diff, it boots successfully in 10/10 attempts, with no warnings or oopses. - 6.18.55, CONFIG_JUMP_LABEL=n: With your diff, 10/10 successful boots. - 7.3-rc1, CONFIG_PROVE_LOCKING=y: With your diff and jump labels both enabled and disabled, 3/3 successful boots in each configuration. The smp.c:917 warning from my report is gone, and lockdep reports no issues. Feel free to add: Tested-by: Josef Schlehofer Josef