Re: [Buildroot] [PATCH] configs/stm32f429_disco_xip_defconfig: fix runtime error due to low ram space and bump to linux version 6.1.27

["Yann E. MORIN" <yann.morin.1998@free.fr>]

Dario, All,

On 2023-05-06 16:21 +0200, Dario Binacchi spake thusly:
> On Mon, May 1, 2023 at 6:26 PM Giulio Benetti
> <giulio.benetti@benettiengineering.com> wrote:
> > After booting Linux the userspace is unusable since every command issued,
> > that is a symlink to busybox, fails because of no free ram. So let's
> > disable IIO in linux.config to give some more ram to userspace.
> I have also experienced this type of behavior when using ST boards in
> general (stm32f429-disco, stm32f469-disco,
> and stm32f769-disco), and every time I wonder whether it is better to
> update the kernel (which always occupies more
> memory with each new version) or not. The idea I have is to prefer the
> kernel to user space, and therefore disable
> starting from the user space first of all, but my opinion is debatable.

Thanks for the feedback.

The thing is: how useful is Industrial IO (IIO) on a device such as the
stm32 disco family? I suspect the interest in IIO for those devices to
be virtually nill, so Giulio's change does make sense.

Regards,
Yann E. MORIN.

> Thanks and regards,
> Dario
> 
> > Signed-off-by: Giulio Benetti <giulio.benetti@benettiengineering.com>
> > ---
> >  board/stmicroelectronics/stm32f429-disco/linux.config | 4 ----
> >  configs/stm32f429_disco_xip_defconfig                 | 2 +-
> >  2 files changed, 1 insertion(+), 5 deletions(-)
> >
> > diff --git a/board/stmicroelectronics/stm32f429-disco/linux.config b/board/stmicroelectronics/stm32f429-disco/linux.config
> > index 7b5c60f180..02d9c2d1e0 100644
> > --- a/board/stmicroelectronics/stm32f429-disco/linux.config
> > +++ b/board/stmicroelectronics/stm32f429-disco/linux.config
> > @@ -95,10 +95,6 @@ CONFIG_STM32_MDMA=y
> >  CONFIG_SYNC_FILE=y
> >  # CONFIG_VIRTIO_MENU is not set
> >  # CONFIG_VHOST_MENU is not set
> > -CONFIG_IIO=y
> > -CONFIG_IIO_BUFFER=y
> > -CONFIG_IIO_TRIGGERED_BUFFER=y
> > -CONFIG_IIO_STM32_TIMER_TRIGGER=y
> >  # CONFIG_FILE_LOCKING is not set
> >  # CONFIG_DNOTIFY is not set
> >  # CONFIG_INOTIFY_USER is not set
> > diff --git a/configs/stm32f429_disco_xip_defconfig b/configs/stm32f429_disco_xip_defconfig
> > index 872e4b6a30..1aea741f7e 100644
> > --- a/configs/stm32f429_disco_xip_defconfig
> > +++ b/configs/stm32f429_disco_xip_defconfig
> > @@ -6,7 +6,7 @@ BR2_ENABLE_LTO=y
> >  BR2_ROOTFS_POST_BUILD_SCRIPT="board/stmicroelectronics/common/stm32f4xx/stm32-post-build.sh"
> >  BR2_LINUX_KERNEL=y
> >  BR2_LINUX_KERNEL_CUSTOM_VERSION=y
> > -BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="6.1.10"
> > +BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="6.1.27"
> >  BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y
> >  BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="board/stmicroelectronics/stm32f429-disco/linux.config"
> >  BR2_LINUX_KERNEL_IMAGE_TARGET_CUSTOM=y
> > --
> > 2.34.1
> >
> 
> 
> -- 
> 
> Dario Binacchi
> 
> Senior Embedded Linux Developer
> 
> dario.binacchi@amarulasolutions.com
> 
> __________________________________
> 
> 
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> 
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