Hi, not sure if my problem from linux-2.6-rcu.git#sedat.2011.04.23a is related to the issue here. Just FYI: I am here on a Pentium-M (uniprocessor aka UP) and still unsure if I have the correct (optimal?) kernel-configs set. Paul gave me a script to collect RCU data and I enhanced it with collecting SCHED data. In the above mentionned GIT branch I applied these two extra commits (0001 requested by Paul and 0002 proposed by Thomas): patches/0001-Revert-rcu-restrict-TREE_RCU-to-SMP-builds-with-PREE.patch patches/0002-sched-Add-warning-when-RT-throttling-is-activated.patch Furthermore, I have added my kernel-config file, scripts, patches and logs (also output of 'cat /proc/cpuinfo'). Hope this helps the experts to narrow down the problem. Regards, - Sedat - P.S.: I adapted the patch from [1] against linux-2.6-rcu.git#sedat.2011.04.23a, but did not help here. [1] http://lkml.org/lkml/2011/4/22/35
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