Thomas Sparrevohn wrote: > As I said its relatively new - I am running root on ZFS (and everything else) and > had a reproduceable deadlock when I was using ZFS of Nvidia ATARAID so I > dropped the ATA RAID and are now running ZFS on the raw disks - It started occuring some > point after that (last two weeks). There is practically no chance ZFS is causing that behaviour. In any case it's easy to check - run off a LiveCD without ZFS initialized (which will be by default on the official disc1/fixit CD) and check there. Barring some silly programming mistake in the idle threads or scheduling (like removing the HLT or similar instructions, or a bug in the compiler optimizing it out), the most probable cause could be a driver problem or an interrupt storm (see vmstat -i). If it's not that, try running powerd.
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