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Tue, 07 Nov 2023 05:51:43 -0800 (PST) MIME-Version: 1.0 References: In-Reply-To: From: Naresh Kamboju Date: Tue, 7 Nov 2023 19:21:32 +0530 Message-ID: Subject: Re: selftests: gpio: crash on arm64 To: Linus Walleij , Bartosz Golaszewski Cc: Bartosz Golaszewski , "open list:GPIO SUBSYSTEM" , Anders Roxell , Linux-Next Mailing List , open list , lkft-triage@lists.linaro.org, "open list:KERNEL SELFTEST FRAMEWORK" , linux-mm , Arnd Bergmann , Shuah Khan , Andrew Morton , Pengfei Xu , yi1.lai@intel.com, Andy Shevchenko , Dan Carpenter Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Rspamd-Queue-Id: 33ED440009 X-Rspam-User: X-Rspamd-Server: rspam11 X-Stat-Signature: 1i3oauitwf817swkq6kirdnxuxfuid6h X-HE-Tag: 1699365103-541724 X-HE-Meta: U2FsdGVkX18vPTA/FdlnpSQ01C3QYis4ykJTZ3zyU7PWh2wjv3pFAFTIhVyXG6o6/Wp/gGdPHw9fDnR8ufjFhwIFvUNgt0MuD6K+gwMg/bIyyPZ2hxFSS7ZHkUuZzcYqhSuF6s6Hh5ciKSOpimaK2m4dDW17MG3IHx53IiH9b13sMQcRdGuxTvfcdSNjNFs1/rZ7HGFLcgcQFuZZGziyS3Y9lw1dWaClO8sDcrm8CBmfLWW+wZE+HmtUkMBLB36DA8K9Myf6kSaqc8ZLtDrT2QrQR5qtvlkWYn4pBKBnuXxWHHHFoKbIVA2wgiaY6YxIDuwQm7HvX3HJtIuggoatsYGWu872xn5D23a+Js1pTgTQPs2R6BIHcnLqkzHRhnLt2vAY+FsXc5xq9Brv+FuwffCQcslQDUKYjtYCItNMKBxdNzj3VXEU3v1tAFlLuKcP6MusiyryX70mri1tLzIFyS3U+jLMlYZRcPT8QpmHcNWBejmdin42XjIYuUUKFywknwCNyAgB+PCBelapLVP5c5nkznQr066DuHmqFZCpeT5+On9crAkZ77Z36HK0h7gc9kRwsZPGmOLj86xz57tVr+1Y502YSwvEbk9DuewGmZNCAgzhPzQbjr5bAVapf1/wzn8FbVqPDFkJwa4pRGiG2PN5DW5oWI/7aflT135KCtv0IC+m0wFNElOAH9W7Hdo5nkKiwvMTQ1bgANMlcQdISXEvSbnlfnoQQdP1+X0Uka0nB8QphJp8JHKGM4QzCZGpN1j3h1rpMoyW6lSyu5Y3gat5+uKzNV/JMrAOLHryDnBwiYDxsTEMqkctSVcFNCyJHxBXqcXURYiua5XaLxQG4Sn2/ncSDa+MVsGFyaxQi+QdOCMswnfltEMEvumDAZn172iQlzMuueoqAR+8GGXjEDZwD8Z8X9c3g7tc5YPPo8MOus7zquHgLiDGbUJcA7L5FkWQqmOrPTDiO2hYoDg UNCxzbI7 uEJCFCjWrxbKAAqL5T/Z3JRpbaLRjxWh+gvsUMoYZ4+6EDjAHEqbMbbvF2ZnlRrLBQ29V+eAVKNnLdEtaEqGi6i1FDiOcDpc94aJA8uvvwRQdbD0xotW2T8UbMri2KwsJ3jB7p9HY/IBoD2Wn2qB0E6nbQ/u/HQV6iSA7g3XHeRloGGcy756EBJdOZ+OJ9iCRyveKBz4hn4vc53pADCNrT/Duh6UpfA4HtySaZ4Alh7SkOcF78hUfwBXQJTCnOOgjnOQQljGfRbDDlltEfP/LlQv2w6tTMonqyLIxoPwRQkXnvsfV/R9SChSaPN7xxGc33IHCCP7l6JSohiW4QN5IQ40wFZUezZJdbO9WZljxKZ+F4qPlNlbkIp1k/9pvvrTluaUS X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Hi Linus and Bartosz, On Tue, 20 Jun 2023 at 22:11, Andy Shevchenko wrote: > > On Tue, Apr 11, 2023 at 10:57:28AM +0200, Linus Walleij wrote: > > On Mon, Apr 10, 2023 at 11:16=E2=80=AFAM Naresh Kamboju > > wrote: > > ... > > > Add a pr_info() devm_gpio_chip_release() in drivers/gpio/gpiolib-devres= .c > > and see if the callback is even called. I think this could be the > > problem: if that isn't cleaned up, there will be dangling references. > > Side note: Since we have devres tracepoints, your patch seems an overkill= :-) > Just enable devres tracepoints and filter out by the function name. I bel= ieve > that should work. Since I have been tracking open issues on the stable-rc kernel, The reported problem on stable-rc linux.6.3.y has been solved on the stable-rc linux.6.6.y branch. Thanks for fixing this reported issue. Upstream links about this fix and discussion, Commit daecca4b8433 gpiolib: Do not alter GPIO chip fwnode member [1] https://lore.kernel.org/linux-gpio/20230703142308.5772-4-andriy.shevche= nko@linux.intel.com/ [2] https://lore.kernel.org/linux-gpio/CAMRc=3DMfFEBSeJ78NO7XeuzAMJ0KezEPAY= WsWnFXXaRyQPAf3dA@mail.gmail.com/ [3] https://lore.kernel.org/linux-gpio/CA+G9fYv94gx8+-JMzbmQaue3q3y6QdBmsGU= CdD-26X5XavL3Ag@mail.gmail.com/ > > -- > With Best Regards, > Andy Shevchenko > >