On 07/27/2009 02:26 PM, Rick Stevens wrote: > You see a bunch of NFS-related things in a "D" state and you wonder why > it's slow? Yes. Mostly because the machine accessing the NFS mounts has been re-booted a couple of times. > If you have processes in an I/O wait (a.k.a. "D") state, that'll bog > stuff down badly...especially if the NFS mounts are mounted "hard". Well, tonight I rebooted the server with NFS turned off. When it booted, I saw a load average between 1 and 2. That's all. When it re-booted, ivtv started back up, despite my blacklisting it and removing it from modprobe.conf. However, ivtvfb did not get installed. I also noticed that BOINC started right up again. With astropulse grabbing all the idle cpu time, my load average was still between 1 and 2. So, I decided that NFS was my problem, but I'm still not sure why. So, I tried a couple of things. My laptop references a few directories on my server via NFS and autofs. So, I started nfs again on the server (service nfs start) Load average remains between 1 and 2. So far so good. >From the laptop, I did a "cd /net/kjc386". I can then do an ls and see all of the exported filesystems. Continues to look good. "ls home" lists the directories in the server's exported /home dir. nfs does the work, and disappears from the top -i that I have running. Great. Next I do a "ls c:" to look at the old WINDOWS partition on my server. HANG! I can't interrupt the ls with ^C nor ^Z. I have to kill it from another process. When I do, the hung nfs processes on the server stay hung. After it collects all 8 allowed nfs processes, nothing more nfs works to the server, and the load average climbs roughly 1 per nfs process (I watched the load average increase with each new nfs process that appeared). So, I guess my question is what's broken with NFS between my F11 laptop and the F10 server???? -- Kevin J. Cummings kjchome@xxxxxxx cummings@xxxxxxxxxxxxxxxxxx cummings@xxxxxxxxxxxxxxxxxxxxxxx Registered Linux User #1232 (http://counter.li.org) -- fedora-list mailing list fedora-list@xxxxxxxxxx To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
