2019-12-09 10:15:33

by Geert Uytterhoeven

Subject: [PATCH] ARM: shmobile: defconfig: Restore debugfs support

Since commit 0e4a459f56c32d3e ("tracing: Remove unnecessary DEBUG_FS
dependency"), CONFIG_DEBUG_FS is no longer auto-enabled. This breaks
booting Debian 9, as systemd needs debugfs:

[FAILED] Failed to mount /sys/kernel/debug.
See 'systemctl status sys-kernel-debug.mount' for details.
[DEPEND] Dependency failed for Local File Systems.
...
You are in emergGive root password for maintenance
(or press Control-D to continue):

Fix this by enabling CONFIG_DEBUG_FS explicitly.

See also commit 18977008f44c66bd ("ARM: multi_v7_defconfig: Restore
debugfs support").

Signed-off-by: Geert Uytterhoeven <[email protected]>
---
To be queued as a fix for v5.5.
---
arch/arm/configs/shmobile_defconfig | 1 +
1 file changed, 1 insertion(+)

diff --git a/arch/arm/configs/shmobile_defconfig b/arch/arm/configs/shmobile_defconfig
index 7f0985e023313b57..64fa849f8bbe0617 100644
--- a/arch/arm/configs/shmobile_defconfig
+++ b/arch/arm/configs/shmobile_defconfig
@@ -215,4 +215,5 @@ CONFIG_DMA_CMA=y
CONFIG_CMA_SIZE_MBYTES=64
CONFIG_PRINTK_TIME=y
# CONFIG_ENABLE_MUST_CHECK is not set
+CONFIG_DEBUG_FS=y
CONFIG_DEBUG_KERNEL=y
--
2.17.1

2019-12-10 17:10:31

by Niklas Söderlund

Subject: Re: [PATCH] ARM: shmobile: defconfig: Restore debugfs support

Hi Geert,

Thanks for your patch.

On 2019-12-09 11:13:27 +0100, Geert Uytterhoeven wrote:
> Since commit 0e4a459f56c32d3e ("tracing: Remove unnecessary DEBUG_FS
> dependency"), CONFIG_DEBUG_FS is no longer auto-enabled. This breaks
> booting Debian 9, as systemd needs debugfs:
>
> [FAILED] Failed to mount /sys/kernel/debug.
> See 'systemctl status sys-kernel-debug.mount' for details.
> [DEPEND] Dependency failed for Local File Systems.
> ...
> You are in emergGive root password for maintenance
> (or press Control-D to continue):
>
> Fix this by enabling CONFIG_DEBUG_FS explicitly.
>
> See also commit 18977008f44c66bd ("ARM: multi_v7_defconfig: Restore
> debugfs support").
>
> Signed-off-by: Geert Uytterhoeven <[email protected]>

Reviewed-by: Niklas S?derlund <[email protected]>

> ---
> To be queued as a fix for v5.5.
> ---
> arch/arm/configs/shmobile_defconfig | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/arch/arm/configs/shmobile_defconfig b/arch/arm/configs/shmobile_defconfig
> index 7f0985e023313b57..64fa849f8bbe0617 100644
> --- a/arch/arm/configs/shmobile_defconfig
> +++ b/arch/arm/configs/shmobile_defconfig
> @@ -215,4 +215,5 @@ CONFIG_DMA_CMA=y
> CONFIG_CMA_SIZE_MBYTES=64
> CONFIG_PRINTK_TIME=y
> # CONFIG_ENABLE_MUST_CHECK is not set
> +CONFIG_DEBUG_FS=y
> CONFIG_DEBUG_KERNEL=y
> --
> 2.17.1
>

--
Regards,
Niklas S?derlund