"Zhang, Yanmin" writes: > On Thu, 2009-08-20 at 17:23 +0800, Xiaotian Feng wrote: >> I got following on 2.6.31-rc5 and rc6 ..... > I didn't run into such issues on my 2 stoakley machines and 1 Nehalem machine. > Perhaps kernel config bypasses this issue. What's the kernel config file you used? My apologies. I thought I had sent this earlier in the thread but it turned out to be a private email. The machine I am running is a 2.4Ghz core2 duo. I also have core dumps enabled and each itteration of the test generates a different core dump file in case that makes a difference.