Comment 191 for bug 620074

I see this on my Intel T81OO notebook on both kernel-2.6.29-0.33.rc5.fc10.x86_64 and kernel-2.6.27.15-170.2.24.fc10.x86_64 (default Fedora config options). Just using the simple dd /dev/zero test can provoke it; the desktop feels less responsive. latencytop shows things like evolution waiting almost 10 seconds for an fsync to complete.

Hardware has an ICH8 chipset, DMA etc. seems configured properly.

vendor_id : GenuineIntel
cpu family : 6
model : 23
model name : Intel(R) Core(TM)2 Duo CPU T8100 @ 2.10GHz
stepping : 6
cpu MHz : 800.000
cache size : 3072 KB
physical id : 0
siblings : 2
core id : 1
cpu cores : 2
apicid : 1
initial apicid : 1