Hi, On Sat, Apr 28, 2012 at 03:49:13PM +0900, Toru Nishimura wrote: > Hi, > > I need a help from powerpc kernel knowledgefuls. My sandpoint > NAS is known to make system lock ups under certain heavy > loads. > > 1. dump(8) or fsck_ffs(8) with -X/-x filesys snapshot. WAPBL enabled. > 2. doing powerpc GCC4.5 compilation for genautomata As D'Arcy I had a lock up on i386 too. In my case it is 6.0_BETA. I do not have a backtrace because I was under X11 when I compiled a package and the system locked up while checking the existing files in /usr/pkg. xosview showed around 40MB/s i/o at that time. Bernd