[PATCH] aspeed_defconfig: Enable SHMEM and TMPFS

[PATCH] aspeed_defconfig: Enable SHMEM and TMPFS

[Andrew Jeffery]

Without enabling these options we get strange behaviour under qemu,
where it appears uevents aren't generated to create device nodes for
ttyS{0,4,5}. As a consequence we don't receive a getty on the console.

Cédric narrowed down the list of options initially at [1],
and with a patch to the qemu timer model[2] we can retain the
CONFIG_NO_HZ_IDLE=y configuration.

[1] https://github.com/openbmc/qemu/issues/4
[2] https://lists.ozlabs.org/pipermail/openbmc/2016-May/003209.html

Cc: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
---
 arch/arm/configs/aspeed_defconfig | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/arch/arm/configs/aspeed_defconfig b/arch/arm/configs/aspeed_defconfig
index cd4cdeb07fd9..f08064c64cb2 100644
--- a/arch/arm/configs/aspeed_defconfig
+++ b/arch/arm/configs/aspeed_defconfig
@@ -13,7 +13,7 @@ CONFIG_BLK_DEV_INITRD=y
 # CONFIG_RD_LZ4 is not set
 CONFIG_CC_OPTIMIZE_FOR_SIZE=y
 CONFIG_BPF_SYSCALL=y
-# CONFIG_SHMEM is not set
+CONFIG_SHMEM=y
 # CONFIG_AIO is not set
 CONFIG_EMBEDDED=y
 # CONFIG_COMPAT_BRK is not set
@@ -128,6 +128,9 @@ CONFIG_FIRMWARE_MEMMAP=y
 CONFIG_FANOTIFY=y
 CONFIG_OVERLAY_FS=y
 CONFIG_CONFIGFS_FS=y
+CONFIG_TMPFS=y
+CONFIG_TMPFS_POSIX_ACL=y
+CONFIG_TMPFS_XATTR=y
 CONFIG_JFFS2_FS=y
 CONFIG_JFFS2_SUMMARY=y
 CONFIG_NFS_FS=y
-- 
2.7.4

Re: [PATCH] aspeed_defconfig: Enable SHMEM and TMPFS

[Cédric Le Goater]

Joel, 

We do need these for OpenBMC. Don't we ? 

C.  

On 05/20/2016 09:29 AM, Andrew Jeffery wrote:
> Without enabling these options we get strange behaviour under qemu,
> where it appears uevents aren't generated to create device nodes for
> ttyS{0,4,5}. As a consequence we don't receive a getty on the console.
> 
> Cédric narrowed down the list of options initially at [1],
> and with a patch to the qemu timer model[2] we can retain the
> CONFIG_NO_HZ_IDLE=y configuration.
> 
> [1] https://github.com/openbmc/qemu/issues/4
> [2] https://lists.ozlabs.org/pipermail/openbmc/2016-May/003209.html
> 
> Cc: Cédric Le Goater <clg@kaod.org>
> Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
> ---
>  arch/arm/configs/aspeed_defconfig | 5 ++++-
>  1 file changed, 4 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/arm/configs/aspeed_defconfig b/arch/arm/configs/aspeed_defconfig
> index cd4cdeb07fd9..f08064c64cb2 100644
> --- a/arch/arm/configs/aspeed_defconfig
> +++ b/arch/arm/configs/aspeed_defconfig
> @@ -13,7 +13,7 @@ CONFIG_BLK_DEV_INITRD=y
>  # CONFIG_RD_LZ4 is not set
>  CONFIG_CC_OPTIMIZE_FOR_SIZE=y
>  CONFIG_BPF_SYSCALL=y
> -# CONFIG_SHMEM is not set
> +CONFIG_SHMEM=y
>  # CONFIG_AIO is not set
>  CONFIG_EMBEDDED=y
>  # CONFIG_COMPAT_BRK is not set
> @@ -128,6 +128,9 @@ CONFIG_FIRMWARE_MEMMAP=y
>  CONFIG_FANOTIFY=y
>  CONFIG_OVERLAY_FS=y
>  CONFIG_CONFIGFS_FS=y
> +CONFIG_TMPFS=y
> +CONFIG_TMPFS_POSIX_ACL=y
> +CONFIG_TMPFS_XATTR=y
>  CONFIG_JFFS2_FS=y
>  CONFIG_JFFS2_SUMMARY=y
>  CONFIG_NFS_FS=y
> 

Re: [PATCH] aspeed_defconfig: Enable SHMEM and TMPFS

[Andrew Jeffery]

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On Fri, 2016-05-20 at 10:25 +0200, Cédric Le Goater wrote:
> Joel, 
> 
> We do need these for OpenBMC. Don't we ? 
> 

Just for completeness, Joel's opened up an issue against openbmc/linux
to track down what's going on here:

https://github.com/openbmc/linux/issues/85

Andrew

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