On 11/25/05, Arjan van de Ven wrote: > what is probably needed to diagnose this is that you do a > > echo "t" > /proc/sysrq-trigger > > and then find the process that hangs in that... and send it to this > list. Previously; In 2.6.15-rc2 kernel debug is not enabled. I enabled kernel debug and tried software compiling to reproduce the problem. But this time, I got hard system lock ups instead of previous process hangs. I attached my log file. Hope this helps to diagnose this problem. Regards.