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Re: kernel config differences between default and Ubuntu

 

Hi Jani,

On Tuesday 05 June 2012 18:44:43 Jani Monoses wrote:
> On Tue, Jan 10, 2012 at 5:16 PM, Jani Monoses <jani.monoses@xxxxxxxxx> 
wrote:
> > Hello,
> > 
> > There are still quite a few config options that were never synced up
> > or were dropped compared to the default paz00 config in the git ac100
> > kernel tree.
> > 
> > I ran this command locally
> > diff -u <(grep "^CONF" arch/arm/configs/paz00_defconfig|cut -f1
> > -d=|sort) <(grep "^CONF" debian.linaro/config/config.common.ubuntu|cut
> > -f 1 -d=|sort ) |grep "-"
> 
> I ran the same now after rebasing on your 3.1-exp branch and the
> differences are as follow
> 
> -CONFIG_BACKLIGHT_TEGRA_PWM

needed for backlight dimming, the best is to select everything which has 
CONFIG_*TEGRA* in the name

> -CONFIG_BOOTPARAM_HUNG_TASK_PANIC
> @@ -78,245 +405,1285 @@
> -CONFIG_HIGHMEM

> -CONFIG_KERNEL_LZO

it is a common option these day, especilly on ARM platforms (for kernel and 
initrd). LZO gives faster decompress and thus faster booting - more or less. I 
would be interested in boot times on various arm boards to prove that btw ...

> -CONFIG_MODULE_FORCE_UNLOAD
> -CONFIG_NET_KEY
> -CONFIG_NFS_FSCACHE
> -CONFIG_NFS_USE_NEW_IDMAPPER
> -CONFIG_NFS_V4_1
> -CONFIG_NL80211_TESTMODE
> -CONFIG_PREEMPT_VOLUNTARY
> -CONFIG_RD_XZ
> -CONFIG_SCSI_SPI_ATTRS
> -CONFIG_SLAB
> -CONFIG_SND_DEBUG
> -CONFIG_SND_DEBUG_VERBOSE
> -CONFIG_SND_SOC_TEGRA20_I2S
> -CONFIG_SND_VERBOSE_PRINTK
> -CONFIG_TEGRA_BB_SUPPORT
> -CONFIG_TEGRA_CRYPTO_DEV
> -CONFIG_TEGRA_DEBUG_UARTA
> -CONFIG_TEGRA_IOMMU_GART
> -CONFIG_TEGRA_NVAVP
> -CONFIG_TEGRA_PCI
> -CONFIG_TEGRA_WATCHDOG
> -CONFIG_USB_HOTPLUG

mmh? Why?

> -CONFIG_USB_OTG

could be useful, it it would work ...

> -CONFIG_WATCHDOG
> 
> Is any of these essential for ac100 functionality?



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