On 09/05/12 17:19, the mail apparently from Andy Green included:
On 09/04/12 12:13, the mail apparently from Ricardo Salveti included:
Hi -
1) Can we have linux stable point release content in tilt-3.4?
Rather than
my doing it, isn't it better to add it to llc-3.4 and merge it on the lt
history tree periodically? That way every lt can get them from one
place.
I don't see why merging the stable release contents would be an issue.
We could keep updating the tree based on stable-only releases, as long
as we still have at least one Landing Team interested on consuming it.
This would be another job that would probably be automated by Andrey's
scripts.
Right it should usually be simple, although don't forget there is quite
a lot of avant garde content in llct, such as Androidization. Just
today I saw Xavier at TI find that merging of stable had a patch
conflicting with llct Androidization content.
So, it turns out that is a good example.
I researched the conflict and found a thread from RMK rejecting the
patch 96714b5dfe283cd8ab13aac1f9ccb565064af152 that seems to have come
in by Androidization series via llct.
http://lists.infradead.org/pipermail/linux-arm-kernel/2010-May/014116.html
We decided to take the kernel.org stable version of the patch
6019ae78aa65afe273da8c0dfeed8e89fb5edf8f which removes some locking evil
in the Androidization version, which RMK noted opened up a horrible race.
Xavier then found a ghastly bug that had previously been impossible to
track down disappeared.
So we now know that 96714b5dfe283cd8ab13aac1f9ccb565064af152 we had been
happily pushing out on everyone in llct-3.4 is a terrible idea, not just
for TILT but any kernel that has it in will suffer from very hard to
reproduce mm instability under stress, and needs reverting in favour of
the version that went in kernel.org stable.
But now we know about that flaw in llct-3.4 should we not do something
about it?
-Andy
--
Andy Green | TI Landing Team Leader
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