linux-kernel - Re: [PATCH v2 2/4] gpio: cdev: use correct pointer accessors with SRCU

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Date: Tue, 27 Feb 2024 17:44:00 +0100
From: Bartosz Golaszewski <brgl@...ev.pl>
To: kernel test robot <oliver.sang@...el.com>
Cc: oe-lkp@...ts.linux.dev, lkp@...el.com, 
	Linus Walleij <linus.walleij@...aro.org>, linux-gpio@...r.kernel.org, 
	Kent Gibson <warthog618@...il.com>, Alex Elder <elder@...aro.org>, 
	Geert Uytterhoeven <geert+renesas@...der.be>, "Paul E . McKenney" <paulmck@...nel.org>, 
	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>, Wolfram Sang <wsa@...-dreams.de>, 
	Mark Brown <broonie@...nel.org>, Dan Carpenter <dan.carpenter@...aro.org>, 
	linux-kernel@...r.kernel.org, 
	Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Subject: Re: [PATCH v2 2/4] gpio: cdev: use correct pointer accessors with SRCU

On Mon, Feb 26, 2024 at 3:28 PM kernel test robot <oliver.sang@...el.com> wrote:
>
>
>
> Hello,
>
> kernel test robot noticed "BUG:unable_to_handle_page_fault_for_address" on:
>
> commit: ef4aabaa372144b2bfa9c4ddc83255831cff9ebd ("[PATCH v2 2/4] gpio: cdev: use correct pointer accessors with SRCU")
> url: https://github.com/intel-lab-lkp/linux/commits/Bartosz-Golaszewski/gpio-take-the-SRCU-read-lock-in-gpiod_hog/20240214-164752
> base: https://git.kernel.org/cgit/linux/kernel/git/brgl/linux.git gpio/for-next
> patch link: https://lore.kernel.org/all/20240214084419.6194-3-brgl@bgdev.pl/
> patch subject: [PATCH v2 2/4] gpio: cdev: use correct pointer accessors with SRCU
>
> in testcase: boot
>
> compiler: clang-17
> test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 16G
>
> (please refer to attached dmesg/kmsg for entire log/backtrace)
>

Please disregard this one, the issue is fixed in patch 3/4 which is
already in next.

Bart