Hi Andrew, The new "move-accounting-function-calls-out-of-critical-vm-code-paths" patch in 2.6.11-rc3-mm2 was different from the code i tested. In particular, it mistakenly dropped the accounting routine calls in fs/exec.c. The calls in do_execve() are needed to properly initialize accounting fields. Specifically, the tsk->acct_stimexpd needs to be initialized to tsk->stime. I have discussed this with Christoph Lameter and he gave me full blessings to bring the calls back. This initialize_acct_integrals patch was generated against 2.6.11-rc3-mm2 to fix the problem. Thanks! Signed-off-by: Jay Lan