[poky] summary about recent do_populate_sdk failures

[Richard Purdie]

On Mon, 2011-01-31 at 15:18 +0800, Tian, Kevin wrote:
> Lianhao and I are looking into recent master instability, more specifically starting
> from reported do_populate_sdk failures. There have been 3 problems revealed:
> 
> 1) unexpected do_package/do_package_write* rebuild
> 2) change PACKAGE_CLASSES causes more do_package rebuilds
> 3) do_populate_sdk finally exits due to eglibc not matching expected version
> 
> We've root caused 1), and the patch has been sent out:
> http://git.pokylinux.org/cgit/cgit.cgi/poky-contrib/commit/?h=tk/master1&id=68ad8ead1a83161afb8c2a65a28dfc205181d80e
> 
> We're not sure whether 3) is caused by too many unexpected do_package rebuilds,
> and is now testing whether 3) will disappear with the fix for 1). We'll also look into
> original failure to see whether real cause of 3) may be hidden with the fix.

I think there is a race and we need to adjust the packaging process for
libgcc/libc as I mentioned in the other email.

To reproduce I'm guessing something like:

"bitbake libgcc virtual/libc -c package -f" will consistently break
rootfs builds after that command is run.

(This relies on the fact that libc will take much longer than libgcc to
package.)

Cheers,

Richard