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Wed, 15 Nov 2023 07:37:43 -0800 (PST) MIME-Version: 1.0 References: In-Reply-To: From: Naresh Kamboju Date: Wed, 15 Nov 2023 21:07:32 +0530 Message-ID: Subject: Re: selftests: gpio: crash on arm64 To: andy.shevchenko@gmail.com Cc: Linus Walleij , Bartosz Golaszewski , 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: E2964180029 X-Rspam-User: X-Rspamd-Server: rspam04 X-Stat-Signature: akbjrqzhq4xr9epkyqbbh994wdy8fi6z X-HE-Tag: 1700062664-594308 X-HE-Meta: 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 yCJKJ+T/ rxdNjD4n1It640SPJoA5ddfXvlTumAyqIsLDVzQZdQ1aFrMDlBWZt+4jIWq/bAV2I8zY2hmVvOlp2EHbWuMuJpY/6vjmMsYGE+mWWpEr+dTIo8RjTpj96lTxzoiVCt3Max+MramRgeThR5B3eEkcdV5Noy0Zj+uMcRHhwEFBCyrT8Y8VwO20WCpl9s6EqO8dxpJH/i/Eh/yqK0WIRWklrr9GgxA5dU06WDNEP3xoVhdiQ18HfqFCLOueA8lmUSzq1v947FQFOB+SDKpB3HmjIJljRtvXYrADrJZsM62AjqgMN32JElc5gpbftExR8/HbnJOknNgFHKCtijI74LZ5ZlxewazTbUtI7TW2bZHwCdIl3K1NO0WRBSEkpHxMEu5q/GzQCdzmZpS29UWxC1wPFGOdBate1bNVSIkRob1+j88J6SzQ9Ae0NMEU71PMXjg4Z3r/Xz9un2Y3d6LY= 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: On Wed, 15 Nov 2023 at 07:12, wrote: > > Tue, Nov 07, 2023 at 07:21:32PM +0530, Naresh Kamboju kirjoitti: > > 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-de= vres.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 reference= s. > > > > > > Side note: Since we have devres tracepoints, your patch seems an over= kill :-) > > > Just enable devres tracepoints and filter out by the function name. I= believe > > > 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, > > I'm a bit lost. Is the [3] fixed? Is the fix the below mentioned commit? As per my understanding on this, The reported issue has been fixed with the below commit. > > > Commit daecca4b8433 > > gpiolib: Do not alter GPIO chip fwnode member > > > > [1] https://lore.kernel.org/linux-gpio/20230703142308.5772-4-andriy.she= vchenko@linux.intel.com/ > > [2] https://lore.kernel.org/linux-gpio/CAMRc=3DMfFEBSeJ78NO7XeuzAMJ0Kez= EPAYWsWnFXXaRyQPAf3dA@mail.gmail.com/ > > [3] https://lore.kernel.org/linux-gpio/CA+G9fYv94gx8+-JMzbmQaue3q3y6QdB= msGUCdD-26X5XavL3Ag@mail.gmail.com/ > > -- > With Best Regards, > Andy Shevchenko - Naresh