On 6/28/07, Andrew Morton <akpm@linux-foundation.org> wrote:
quoted text
>
> ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.22-rc6/2.6.22-rc6-mm...
>
> - NOTE (an uppercase one, indeed): there are a lot of menuconfig changes in
>   here which break `make oldconfig' badly.  If you grab an old .config and run
>   `make oldconfig', your kernel probably won't work.  I lost useful things
>   like CONFIG_BLK_DEV and the whole SCSI system, because they were added after
>   I generated my .config.
>
>   So save yourself some hassle and check your .config carefully before
>   building this kernel.  Make sure that everything you need is still enabled.
>
>   I found that manually adding "CONFIG_BLK_DEV=y" to the .config before
>   running oldconfig saved a large number of config items from getting lost.

On the one ppc64 machine I have to test on for memoryless nodes, I
found I had to add back in CONFIG_BLK_DEV=y and
CONFIG_SCSI_LOWLEVEL=y. Just for reference as other folks pull out
their hair.

quoted text
>   Those menuconfig changes have been a huge pain.

Yes.

Thanks,
Nish
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