<p dir="ltr">The force failed. That's when my alarm bells hit 11 on the 10 dial. I'm suspecting ram failure. Can't test that until I reboot tomorrow.</p>
<div class="gmail_quote">On Oct 19, 2015 7:36 PM, "Lightner, Jeff" <<a href="mailto:JLightner@dsservices.com">JLightner@dsservices.com</a>> wrote:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">I hate to ask but did you use the force option when trying to unmount the NFS mount?<br>
<br>
Have you tried stopping nfs.client? autofs? (nfs server if running?)<br>
<br>
For what its worth I've seen this kind of hang on a heavily loaded server (used for backups with NFS mounted deduplication appliances) and have actually seen it clear after a few minutes for brief periods.<br>
<br>
<br>
-----Original Message-----<br>
From: <a href="mailto:ale-bounces@ale.org">ale-bounces@ale.org</a> [mailto:<a href="mailto:ale-bounces@ale.org">ale-bounces@ale.org</a>] On Behalf Of DJ-Pfulio<br>
Sent: Monday, October 19, 2015 6:30 PM<br>
To: <a href="mailto:ale@ale.org">ale@ale.org</a><br>
Subject: Re: [ale] lsof and a hung system<br>
<br>
On 10/19/2015 06:14 PM, Jim Kinney wrote:<br>
> So the user notifies me they can do a cd to an nfs mounted directory.<br>
> I get on and can't do ls -la on /. there's a trio of cat commands that<br>
> are hung and anything that reads data from the drives basically does<br>
> nothing. Nothing is running but the load average is 20 and not<br>
> changing. So I try to kill the cat's and unmount the nfs folder. No<br>
> work. Dang! what else is open? run lsof. Nothing happens.<br>
> I'm expecting all sorts of file system errors when after I press the<br>
> reset switch. A sync command just hangs. dmesg shows user space<br>
> applications segfaults all over the the place. So the (very new) user<br>
> would just run it again. I've got a zombie collection that The Walking<br>
> Dead would call a "herd".<br>
><br>
<br>
sync?<br>
hard?<br>
nfs v3/v4?<br>
mount options?<br>
<br>
<br>
<br>
Zombies?!!?<br>
<br>
*<br>
<a href="http://abcnews.go.com/Technology/zombie-bees-found-northeast/story?id=22290433" rel="noreferrer" target="_blank">http://abcnews.go.com/Technology/zombie-bees-found-northeast/story?id=22290433</a><br>
<br>
* <a href="http://www.cdc.gov/phpr/zombies.htm" rel="noreferrer" target="_blank">http://www.cdc.gov/phpr/zombies.htm</a> - gotta be prepared<br>
<br>
_______________________________________________<br>
Ale mailing list<br>
<a href="mailto:Ale@ale.org">Ale@ale.org</a><br>
<a href="http://mail.ale.org/mailman/listinfo/ale" rel="noreferrer" target="_blank">http://mail.ale.org/mailman/listinfo/ale</a><br>
See JOBS, ANNOUNCE and SCHOOLS lists at<br>
<a href="http://mail.ale.org/mailman/listinfo" rel="noreferrer" target="_blank">http://mail.ale.org/mailman/listinfo</a><br>
<br>
_______________________________________________<br>
Ale mailing list<br>
<a href="mailto:Ale@ale.org">Ale@ale.org</a><br>
<a href="http://mail.ale.org/mailman/listinfo/ale" rel="noreferrer" target="_blank">http://mail.ale.org/mailman/listinfo/ale</a><br>
See JOBS, ANNOUNCE and SCHOOLS lists at<br>
<a href="http://mail.ale.org/mailman/listinfo" rel="noreferrer" target="_blank">http://mail.ale.org/mailman/listinfo</a><br>
</blockquote></div>