On Fri, Feb 21, 2014 at 12:59 PM, Chris Murphy <lists@xxxxxxxxxxxxxxxxx> wrote: > Five concurrent VMs for one spinning disk. It sounds like it's seeking to death. That's my reproducible test, not typical use. "Seeking to death" would indicate drive activity. When the problem occurs, drive activity stops for minutes at a time. I suppose I shouldn't have even mentioned VMs because that seems to be muddying the discussion. The problem persists after all the VMs are shut down. For instance, right now I'm not running any VMs but I'm experiencing the problem (though I was performing the above test). I can observe it by doing a local git clone of the linux kernel: git clone /usr/src/linux If I run this from a fresh boot, it causes the hard drive to chatter but doesn't cause IO to hang. After running the above 5-VM test for a day, even after shutting down the VMs, my machine is still in this state that causes IO to periodically hang. -- -=[dave]=- Entropy isn't what it used to be. -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
