Date: Sun, 27 Feb 2000 01:48:59 -0600 (CST) From: Ryan Thompson <ryan@sasknow.com> To: freebsd-hackers@freebsd.org Subject: Annoying nfsrcv hangs Message-ID: <Pine.BSF.4.21.0002270122160.515-100000@ntstn.sasknow.com>
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ps al on my system shows multiple nfsrcv hangs on processes such as df, ls and umount. Without any other characteristic problems, the nfs server machine's exports all seemed to be working correctly. However, *one* and only one of the mounts somehow went south. 'mount' on the client machine shows: # mount | grep 10.0.0.2 10.0.0.2:/usr on /f/usr 10.0.0.2:/devel on /f/devel 10.0.0.2:/bigfs on bigfs That's verbatim... The mount was NOT done on bigfs... It was in fact done on /f/bigfs. "We have secretly switched this SysAdmin's mountpoint with Foldger's crystals. Think he'll taste the difference?" It appears to be the cause of the hangs I mentioned. One such hang was one that I just created by issuing umount -f bigfs. The client nfs mounts are mounted intr, yet I still can't send a TERM or KILL that these processes will catch. # grep bigfs /etc/fstab 10.0.0.2:/bigfs /f/bigfs nfs rw,bg,intr 2 2 The client is a 3.2-RELEASE system. Server is 3.4-STABLE as of about 12 days ago. It looks like reboots are in order... But, these are production machines! This is certainly annoying...! I thought the intr option was supposed to help with hung nfs procs. Is there anything else I can try in my current situation? Any better ways to prevent this sort of thing (besides running SunOS?) Or is it PR time? # uptime 1:46AM up 118 days 1:14, 12 users, load averages: 2.36, 2.34, 2.21 As you see, I haven't had any longevity problems up until now.. Has anything been built into -CURRENT to address these hangs? It has plagued many in the past, and continues to do so. Yours truly, - Frustrated :-) -- Ryan Thompson <ryan@sasknow.com> Systems Administrator, Accounts Phone: +1 (306) 664-1161 SaskNow Technologies http://www.sasknow.com #106-380 3120 8th St E Saskatoon, SK S7H 0W2 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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