On Wednesday 19 September 2001 10:56 am, Tad Dolphay wrote:
> Anything interesting from tcpdump when you do the df?
>
> For example:
> tcpdump -s 300 ip host <client> and <server>
Hi, Tad.
Ok, made some progress. The 1st problem (error with 'df' or 'cd') has nothing
to do with xfs, and only has to do with the wierd way HP/UX deals with nfs
permissions. I managed to reproduce that problem on an ext2 partition, and
was due to the exported directory having no permissions for other users
(770). As it turns out, 'df' worked fine as the user with permissions for the
exported dir; just not any other users, including root. Yet another way that
HP/UX has to be different from everybody else.
The 2nd problem (quota checking hanging) stuck around, and I found the
following problem in the tcp trace when doing a 'df' (tux is the Linux box,
Osiris is the HP/UX 11.00 box):
13:33:52.241467 eth0 < osiris.hekla.exoterica.com.49273 >
tux.hekla.exoterica.com.sunrpc: S 643514180:643514180(0) win 32768 <mss
1460,wscale 0,nop>
13:33:52.241467 eth0 > tux.hekla.exoterica.com.sunrpc >
osiris.hekla.exoterica.com.49273: S 3702664261:3702664261(0) ack 643514181
win 5840 <mss 1460,nop,wscale 0> (DF)
13:33:52.241467 eth0 < osiris.hekla.exoterica.com.49273 >
tux.hekla.exoterica.com.sunrpc: F 1:1(0) ack 1 win 32768
13:33:52.241467 eth0 > tux.hekla.exoterica.com.sunrpc >
osiris.hekla.exoterica.com.49273: F 1:1(0) ack 2 win 5840 (DF)
13:33:52.241467 eth0 < osiris.hekla.exoterica.com.49273 >
tux.hekla.exoterica.com.sunrpc: . 2:2(0) ack 2 win 32768
13:33:52.241467 eth0 < osiris.hekla.exoterica.com.49992 >
tux.hekla.exoterica.com.sunrpc: udp 56
13:33:52.241467 eth0 > tux.hekla.exoterica.com.sunrpc >
osiris.hekla.exoterica.com.49992: udp 28 (DF)
13:33:52.251467 eth0 < osiris.hekla.exoterica.com.49993 >
tux.hekla.exoterica.com.894: udp 92
13:33:58.241525 eth0 < osiris.hekla.exoterica.com.49993 >
tux.hekla.exoterica.com.894: udp 92
13:33:58.241525 eth0 > tux.hekla.exoterica.com > osiris.hekla.exoterica.com:
icmp: tux.hekla.exoterica.com udp port 894 unreachable [tos 0xc0]
13:34:10.241644 eth0 < osiris.hekla.exoterica.com.49993 >
tux.hekla.exoterica.com.894: udp 92
13:34:10.241644 eth0 > tux.hekla.exoterica.com > osiris.hekla.exoterica.com:
icmp: tux.hekla.exoterica.com udp port 894 unreachable [tos 0xc0]
The reason was that rpc.rquotad on the Linux box was crashing upon being
contacted by the HP box. I tried upgrading it to the
quota-3.01pre9-0.7.1.i386.rpm errata recently released by RedHat, and the
problem has gone away. Note that rpc.rquotad now outputs the following
message upon logging in to the HP box:
rpc.rquotad: Mountpoint (or device) /u/rd/mga not found.
which I presume is harmless? (at least since I'm not actually using quotas)
The version of quota which was crashing is whatever comes on the SGI-modified
RedHat 7.1 install CD.
So, things seem to be working now with nfs v3, although the quota crash might
be a concern (especially if there's a reason that I shouldn't be using the
RedHat errata package, as discussed during a previous thread).
Thanks for your help.
//Mark
--
Mark G. Adams
Research & Development
OmniMark Technologies
Ottawa, Ontario, Canada
mgadams@xxxxxxxxxxxx
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