From: Andrey Konovalov <andreyknvl@google.com>
To: kernel test robot <lkp@intel.com>
Cc: kbuild-all@lists.01.org,
clang-built-linux <clang-built-linux@googlegroups.com>,
LKML <linux-kernel@vger.kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
Linux Memory Management List <linux-mm@kvack.org>
Subject: Re: drivers/net/wan/slic_ds26522.c:205:12: warning: stack frame size of 12288 bytes in function 'slic_ds26522_probe'
Date: Mon, 23 Nov 2020 15:15:33 +0100 [thread overview]
Message-ID: <CAAeHK+zykqmcDPAa5GAeu4hSfyWF-D4PAa15y=CSgtAxSQTkGQ@mail.gmail.com> (raw)
In-Reply-To: <202011200603.Fq2dmeMk-lkp@intel.com>
On Thu, Nov 19, 2020 at 11:16 PM kernel test robot <lkp@intel.com> wrote:
>
> tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> head: 3494d58865ad4a47611dbb427b214cc5227fa5eb
> commit: cae9dc35ed9ff82a99754e51d57ff6c332e1f7e4 kasan: allow enabling stack tagging for tag-based mode
> date: 3 months ago
> config: arm64-randconfig-r002-20201119 (attached as .config)
> compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project b2613fb2f0f53691dd0211895afbb9413457fca7)
> reproduce (this is a W=1 build):
> wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
> chmod +x ~/bin/make.cross
> # install arm64 cross compiling tool for clang build
> # apt-get install binutils-aarch64-linux-gnu
> # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=cae9dc35ed9ff82a99754e51d57ff6c332e1f7e4
> git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
> git fetch --no-tags linus master
> git checkout cae9dc35ed9ff82a99754e51d57ff6c332e1f7e4
> # save the attached .config to linux build tree
> COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm64
>
> If you fix the issue, kindly add following tag as appropriate
> Reported-by: kernel test robot <lkp@intel.com>
>
> All warnings (new ones prefixed by >>):
>
> >> drivers/net/wan/slic_ds26522.c:205:12: warning: stack frame size of 12288 bytes in function 'slic_ds26522_probe' [-Wframe-larger-than=]
> static int slic_ds26522_probe(struct spi_device *spi)
> ^
> 1 warning generated.
> --
> >> drivers/gpu/drm/panel/panel-sitronix-st7789v.c:194:12: warning: stack frame size of 18352 bytes in function 'st7789v_prepare' [-Wframe-larger-than=]
> static int st7789v_prepare(struct drm_panel *panel)
> ^
> 1 warning generated.
Same issue as reported previously. Copying my response from the other
email just in case:
This is the same issue in LLVM that was reported by Arnd for generic
KASAN (also see KASAN_STACK_ENABLE option description). By default
KASAN shouldn't have stack instrumentation enabled unless
KASAN_STACK_ENABLE is specified. Perhaps it makes sense to disable it
for KASAN_SW_TAGS config on the kernel test robot.
[1] https://bugs.llvm.org/show_bug.cgi?id=38809
WARNING: multiple messages have this Message-ID (diff)
From: Andrey Konovalov <andreyknvl@google.com>
To: kbuild-all@lists.01.org
Subject: Re: drivers/net/wan/slic_ds26522.c:205:12: warning: stack frame size of 12288 bytes in function 'slic_ds26522_probe'
Date: Mon, 23 Nov 2020 15:15:33 +0100 [thread overview]
Message-ID: <CAAeHK+zykqmcDPAa5GAeu4hSfyWF-D4PAa15y=CSgtAxSQTkGQ@mail.gmail.com> (raw)
In-Reply-To: <202011200603.Fq2dmeMk-lkp@intel.com>
[-- Attachment #1: Type: text/plain, Size: 2451 bytes --]
On Thu, Nov 19, 2020 at 11:16 PM kernel test robot <lkp@intel.com> wrote:
>
> tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> head: 3494d58865ad4a47611dbb427b214cc5227fa5eb
> commit: cae9dc35ed9ff82a99754e51d57ff6c332e1f7e4 kasan: allow enabling stack tagging for tag-based mode
> date: 3 months ago
> config: arm64-randconfig-r002-20201119 (attached as .config)
> compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project b2613fb2f0f53691dd0211895afbb9413457fca7)
> reproduce (this is a W=1 build):
> wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
> chmod +x ~/bin/make.cross
> # install arm64 cross compiling tool for clang build
> # apt-get install binutils-aarch64-linux-gnu
> # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=cae9dc35ed9ff82a99754e51d57ff6c332e1f7e4
> git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
> git fetch --no-tags linus master
> git checkout cae9dc35ed9ff82a99754e51d57ff6c332e1f7e4
> # save the attached .config to linux build tree
> COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm64
>
> If you fix the issue, kindly add following tag as appropriate
> Reported-by: kernel test robot <lkp@intel.com>
>
> All warnings (new ones prefixed by >>):
>
> >> drivers/net/wan/slic_ds26522.c:205:12: warning: stack frame size of 12288 bytes in function 'slic_ds26522_probe' [-Wframe-larger-than=]
> static int slic_ds26522_probe(struct spi_device *spi)
> ^
> 1 warning generated.
> --
> >> drivers/gpu/drm/panel/panel-sitronix-st7789v.c:194:12: warning: stack frame size of 18352 bytes in function 'st7789v_prepare' [-Wframe-larger-than=]
> static int st7789v_prepare(struct drm_panel *panel)
> ^
> 1 warning generated.
Same issue as reported previously. Copying my response from the other
email just in case:
This is the same issue in LLVM that was reported by Arnd for generic
KASAN (also see KASAN_STACK_ENABLE option description). By default
KASAN shouldn't have stack instrumentation enabled unless
KASAN_STACK_ENABLE is specified. Perhaps it makes sense to disable it
for KASAN_SW_TAGS config on the kernel test robot.
[1] https://bugs.llvm.org/show_bug.cgi?id=38809
next prev parent reply other threads:[~2020-11-23 14:16 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-19 22:16 drivers/net/wan/slic_ds26522.c:205:12: warning: stack frame size of 12288 bytes in function 'slic_ds26522_probe' kernel test robot
2020-11-19 22:16 ` kernel test robot
2020-11-23 14:15 ` Andrey Konovalov [this message]
2020-11-23 14:15 ` Andrey Konovalov
2020-11-23 14:15 ` Andrey Konovalov
2020-11-24 8:01 ` [kbuild-all] " Rong Chen
2020-11-24 8:01 ` Rong Chen
2020-11-24 11:51 ` [kbuild-all] " Andrey Konovalov
2020-11-24 11:51 ` Andrey Konovalov
2020-11-24 11:51 ` [kbuild-all] " Andrey Konovalov
2020-11-25 0:33 ` Rong Chen
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