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

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

[Giulio Benetti]

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.

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

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

[Dario Binacchi]

Hi Giulio,

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 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

__________________________________


Amarula Solutions SRL

Via Le Canevare 30, 31100 Treviso, Veneto, IT

T. +39 042 243 5310
info@amarulasolutions.com

www.amarulasolutions.com
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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]

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
> 
> __________________________________
> 
> 
> Amarula Solutions SRL
> 
> Via Le Canevare 30, 31100 Treviso, Veneto, IT
> 
> T. +39 042 243 5310
> info@amarulasolutions.com
> 
> www.amarulasolutions.com
> _______________________________________________
> buildroot mailing list
> buildroot@buildroot.org
> https://lists.buildroot.org/mailman/listinfo/buildroot

-- 
.-----------------.--------------------.------------------.--------------------.
|  Yann E. MORIN  | Real-Time Embedded | /"\ ASCII RIBBON | Erics' conspiracy: |
| +33 662 376 056 | Software  Designer | \ / CAMPAIGN     |  ___               |
| +33 561 099 427 `------------.-------:  X  AGAINST      |  \e/  There is no  |
| http://ymorin.is-a-geek.org/ | _/*\_ | / \ HTML MAIL    |   v   conspiracy.  |
'------------------------------^-------^------------------^--------------------'
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Re: [Buildroot] [PATCH] configs/stm32f429_disco_xip_defconfig: fix runtime error due to low ram space and bump to linux version 6.1.27

[Giulio Benetti]

Hi Dario,

On 06/05/23 16:21, Dario Binacchi wrote:
> Hi Giulio,
> 
> 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.

I was about to that, but while testing on the board I've seen that
busybox utilities were already very few. So I've preferred to disable
IIO STM32 Timer Trigger and entire IIO subsystem. I think that the
board is anyway a good playground. Of course with only 8MB on ram is
not suitable for any program. So if nowadays someone decides to design
a board with stm32f4 processor should go with older Linux versions or
IMHO they should use more ram.

Kind regards
-- 
Giulio Benetti
Benetti Engineering sas

> 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
>>
> 
> 

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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]

Giulio, All,

On 2023-05-01 18:26 +0200, Giulio Benetti spake thusly:
> 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.
> 
> Signed-off-by: Giulio Benetti <giulio.benetti@benettiengineering.com>

Applied to master, thanks.

Regards,
Yann E. MORIN.

> ---
>  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
> 
> _______________________________________________
> buildroot mailing list
> buildroot@buildroot.org
> https://lists.buildroot.org/mailman/listinfo/buildroot

-- 
.-----------------.--------------------.------------------.--------------------.
|  Yann E. MORIN  | Real-Time Embedded | /"\ ASCII RIBBON | Erics' conspiracy: |
| +33 662 376 056 | Software  Designer | \ / CAMPAIGN     |  ___               |
| +33 561 099 427 `------------.-------:  X  AGAINST      |  \e/  There is no  |
| http://ymorin.is-a-geek.org/ | _/*\_ | / \ HTML MAIL    |   v   conspiracy.  |
'------------------------------^-------^------------------^--------------------'
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Re: [Buildroot] [PATCH] configs/stm32f429_disco_xip_defconfig: fix runtime error due to low ram space and bump to linux version 6.1.27

[Peter Korsgaard]

>>>>> "Giulio" == Giulio Benetti <giulio.benetti@benettiengineering.com> writes:

 > 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.

 > Signed-off-by: Giulio Benetti <giulio.benetti@benettiengineering.com>

Committed to 2023.02.x, thanks.

-- 
Bye, Peter Korsgaard
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