Your errors trigger in rbtree, which does indexing for HTB, but since
it's something quite rare I think there is a very small probability
that it's caused by HTB class/level handling (but it's possible, too),
but more probable (to me) these indexes are corrupted by something e.g.
like accessing them without proper locking.
Below I attach a patch for testing: it adds some lock debugging (plus
one place: htb_put is locked). There is mainly checking of locks
needed for writing to rbtree, but it doesn't check all readings yet,
so there will be still something to check if this patch doesn't help
to find anything.
It should be applied to 2.6.23-rc4, but if you prefer 2.6.22.5 version
let me know (BTW, I hope you let us know if you have to apply any
other patches/changes to these kernels...).
Ok... i was apply patch and see that its say... thanks...
Maybe you see bug 2 (wrong level calculation) and 3 (class not leaf but
have qdisc) at
http://bugzilla.kernel.org/show_bug.cgi?id=8971
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