2.6.18-rc3 does not like an old udev (071)

[Guillaume Chazarain]

Hi,

When updating only the kernel to 2.6.18-rc3 on Ubuntu Dapper/x86, 
/dev/usblp0
is no more created on boot. If I manually create it, it works fine.

Vanilla udev from Dapper: version 079 (Documentation/Changes requires
udev 071 ;-) ).

git-bisect told me the culprit was
http://www.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=bd00949647ddcea47ce4ea8bb2cfcfc98ebf9f2a

Reverting only this commit makes an Oopsing kernel.

This patch was next to last in its serie:
http://www.mail-archive.com/linux-usb-devel@xxxxxxxxxxxxxxxxxxxxx/msg44538.html

Reverting the last patch in the serie (as well as the culprit found by 
git bisect):
http://www.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=43104f1da88f5335e9a45695df92a735ad550dda
fixes the problem.

Updating udev to 096, and using a normal 2.6.18-rc3 kernel works too, so 
maybe
the correct (albeit unpopular) fix is to update the udev requirement in
Documentation/Changes?

Thanks.

--
Guillaume

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