@tinodj, were you using the test from the reply (the original test case had a flaw)?
Anyway, the patch that Scot mentioned could be fixing things. But for Lucid this was added in Ubuntu-2.6.32-25.44 and at least in the comment a -24.43 kernel was used. So first question: is this still seen with a 2.6.32-28.55 kernel?
When browsing over patches I had the feeling there could be other things falling into that area as well, for example
@tinodj, were you using the test from the reply (the original test case had a flaw)?
Anyway, the patch that Scot mentioned could be fixing things. But for Lucid this was added in Ubuntu-2.6.32-25.44 and at least in the comment a -24.43 kernel was used. So first question: is this still seen with a 2.6.32-28.55 kernel?
When browsing over patches I had the feeling there could be other things falling into that area as well, for example
commit c28739375bf0d6e 239b4fa939ec837 2aa2c707d2
Author: Stanislaw Gruszka <email address hidden>
Date: Thu Mar 11 14:04:42 2010 -0800
cpu-timers: Avoid iterating over all threads in fastpath_ timer_check( )
But I would first want to double check that it is the right test case failing with the right kernel.