Re: Still gettnig NFS client locking up

Robert Watson wrote:
> On Tue, 28 Oct 2003, Soren Schmidt wrote:
> 
> 
>>>I'm now running a kernel/world of October 26th on both NFS client and 
>>>server machines. I am still seeing NFS lockups as reported by several 
>>>people in these threads:
>>
>>Me too!!
> 
> 
> Hmm.  I'm unable to reproduce this so far, and I'm pounding several 5.x
> NFS clients and servers.  I've been checking out using CVS over NFS,
> performing dd's of big files, etc.  There must be something more I'm
> missing in reproducing this.  What network interface cards are you using
> (client, server)? Are you using DHCP on the client or server?  What
> commands trigger it -- what part of the NFS namespace, etc?  Are you
> running the commands as root, or another user?
> 
> Robert N M Watson             FreeBSD Core Team, TrustedBSD Projects
> robert_at_fledge.watson.org      Network Associates Laboratories
> 

I have 3com cards in both machines. 3c905c's I believe. The xl driver. 
The client has a static IP address configured from rc.conf and the 
server uses dhclient to get a hardwired static address based on MAC.

I'm running the commands as root. I have noticed that it generally locks 
up when writing to the mount rather than reading as I can do an 
installworld from the NFS server to the client without issues (i think!, 
I've only tried this once). But downloading files into the mount breaks 
very quickly. I guess it could be a filesize thing though. I shall have 
to do some more testing. I was planning on cvsuping and buildworlding on 
saturday again.

It started happening approx two weeks ago I think? Roughly when I first 
reported it, but NFS had always been solid as a rock before then.

I can easily reproduce this by doing this:

[root_at_womble root]# cd /usr/ports/databases/mysql40-server
[root_at_womble mysql40-server]# make fetch
 >> mysql-4.0.16.tar.gz doesn't seem to exist in /usr/ports/distfiles/.
 >> Attempting to fetch from 
ftp://planetmirror.com/pub/mysql/Downloads/MySQL-4.0/.
Receiving mysql-4.0.16.tar.gz (12830094 bytes): 3%

(has now locked up)

[root_at_womble root]# ls /usr/src
COPYRIGHT     README        contrib       gnu           libexec 
secure        usr.bin
MAINTAINERS   UPDATING      crypto        include       release 
share         usr.sbin
Makefile      bash.core     etc           kerberos5     rescue        sys
Makefile.inc1 bin           games         lib           sbin          tools
[root_at_womble root]# ls /usr/ports

(has also locked up)

[matt_at_womble matt]$ ps wauxl | grep fetch
root    70213  0.0  0.3   816  660  p3  S+    8:47AM   0:00.39 make 
fetch           0 63855   0   8  0 wait
root    70284  0.0  0.5  2604 1212  p3  S+    8:47AM   0:00.14 
/usr/bin/fetch -     0 70259   0  -8  0 nfsaio

[matt_at_womble matt]$ ps wauxl | grep ls
root    70307  0.0  0.2   772  480  p6  D+    8:48AM   0:00.01 ls 
/usr/ports        0 70302   0  -1  0 nfsrcv

[matt_at_womble matt]$ uname -a
FreeBSD womble.xtaz.co.uk 5.1-CURRENT FreeBSD 5.1-CURRENT #0: Sun Oct 26 
21:14:58 GMT 2003 
root_at_fraggle.xtaz.co.uk:/usr/obj/usr/src/sys/WOMBLE  i386

[matt_at_womble matt]$ cat /etc/fstab | grep nfs
10.0.0.2:/usr/src       /usr/src        nfs     rw,soft,intr    0       0
10.0.0.2:/usr/obj       /usr/obj        nfs     rw,soft,intr    0       0
10.0.0.2:/usr/ports     /usr/ports      nfs     rw,soft,intr    0       0

rc.conf on the client contains:
ifconfig_xl1="inet 10.0.0.1  netmask 255.255.255.0"
nfs_client_enable="YES"

rc.conf on the server contains:
ifconfig_xl0="DHCP"
rpcbind_enable="YES"
nfs_server_enable="YES"
mountd_enable="YES"

And this is the uname of the server:
[root_at_fraggle src]# uname -a
FreeBSD fraggle.xtaz.co.uk 5.1-CURRENT FreeBSD 5.1-CURRENT #0: Sun Oct 
26 21:05:49 GMT 2003 
root_at_fraggle.xtaz.co.uk:/usr/obj/usr/src/sys/FRAGGLE  i386