Date: Mon, 14 Oct 2002 01:43:05 +0000 From: "cool46 cool46" <coolunixer@hotmail.com> To: neuhauser@bellavista.cz, wmoran@potentialtech.com Cc: FreeBSD-questions@FreeBSD.ORG Subject: Re: how to kill nfs-blocked process Message-ID: <F147F7eF20PiHXEWkYX0002013a@hotmail.com>
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thanks for your reply.i'm sorry,this doesn't work for me,the problem is still in. this time i do the same experiment as before except using: mount_nfs -i -R 1 -s 10.0.0.1:/home /usr/home the process blocked by nfs cann't return or be interrupted,and i also can't kill it. i tried in freebsd 4.5 and 4.6 is it works for FreeBSD 4.7-RC? any sugguestions else? thanks again. >From: Roman Neuhauser <neuhauser@bellavista.cz> >To: Bill Moran <wmoran@potentialtech.com> >CC: cool46 cool46 <coolunixer@hotmail.com>,questions <FreeBSD-questions@FreeBSD.ORG> >Subject: Re: how to kill nfs-blocked process >Date: Fri, 11 Oct 2002 15:50:39 +0200 > ># wmoran@potentialtech.com / 2002-10-11 09:39:38 -0400: > > cool46 cool46 wrote: > > > thanks for your reply,but it is not work for me.i tried to mount nfs > > > with options -i,-R,but the problem is as before.The details of my test > > > is as follows: > > > my nfs server(IP:10.0.0.1) is a RedHat 7.3 with kernel of 2.4.19 > > > version,my nfs client(IP:10.0.0.2) is freebsd 4.5 > > > 10.0.0.2: > > > mount_nfs -i -R 1 10.0.0.1:/home /usr/home > > > cp a_big_file /usr/home > > > > > > in the course of doing this,i disabled network between these two machine > > > by using iptables in 10.0.0.1 > > > /sbin/iptables -I INPUT -p udp -s 10.0.0.2 -j DROP > > > > > > so the process 'cp' in 10.0.0.2 is blocked,I can't kill or interrupt it > > > in any way.According to mount_nfs's manual ,it should failed and return > > > in a few minutes because i set -R equal to 1,but the fact is not. > > > Could you help me? > > > thanks agains.i'm a chinese and glad to make friends with you. > > > > That should be the solution. I'm not an NFS "expert" so you may want to > > consult with some others as well. (I've put this email back on the mailing > > list) > > -i Make the mount interruptible, which implies that file system > calls that are delayed due to an unresponsive server will fail > with EINTR when a termination signal is posted for the process. > > the above makes it look like you should be able to kill the process > with your settings. but see below. > > -R Set the mount retry count to the specified value. The > default is a retry count of zero, which means to keep > retrying forever. There is a 60 second delay between each > attempt. > > this is probably what you're missing. works for me. > > -s A soft mount, which implies that file system calls will fail > after Retry round trip timeout intervals. > >-- >begin 666 nonexistent.vbs >FreeBSD 4.7-RC >3:46PM up 3:02, 7 users, load averages: 1.37, 1.12, 0.68 >end _________________________________________________________________ 与联机的朋友进行交流，请使用 MSN Messenger: http://messenger.microsoft.com/cn To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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