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Subjectnfs problem: aix-server --- linux 2.4.15pre5 client
Hi,

Trond Myklebust writes:
> > But a new problem emerged: Copying from a linux (2.4.13 |
> > 2.4.15pre5) nfs-client onto an AIX nfs-server doesn't
> > work. About 800kb are copied then the cp command just
> > hangs. Syslog says: Nov 16 11:51:12 capc20 kernel: nfs: server
> > caes04 not responding, still trying This problem only occures
> > with nfs3, and not with nfs2.
>
> > Is there a cure for this, without being too experimental?
>
> No idea. That depends on where the problem lies...

I should have known that. ;-)

> Do you have a tcpdump for me? Preferably one from the client and one
> from the server (showing the same period of time).

The tcpdump was taken while copying from the Linux nfs3-Client onto
the Aix nfs3-Server:

tcpdump on AIX (caes04):
13:47:28.337776317 truncated-ip - 18 bytes missing!capc25.muc.796 > caes04.muc.shilp: P 2059179904:2059180060(156) ack 4022052897 win 17520 (DF)
13:47:28.337860266 caes04.muc.shilp > capc25.muc.796: P 1:121(120) ack 156 win 60032
13:47:28.343619224 capc25.muc.796 > caes04.muc.shilp: . ack 121 win 17520 (DF)
13:47:28.344042473 truncated-ip - 50 bytes missing!capc25.muc.796 > caes04.muc.shilp: P 156:344(188) ack 121 win 17520 (DF)
13:47:28.357398139 truncated-ip - 138 bytes missing!caes04.muc.shilp > capc25.muc.796: P 121:397(276) ack 344 win 60032
13:47:28.364496982 truncated-ip - 1322 bytes missing!capc25.muc.796 > caes04.muc.shilp: . 344:1804(1460) ack 397 win 17520 (DF)
13:47:28.364872917 truncated-ip - 1322 bytes missing!capc25.muc.796 > caes04.muc.shilp: . 1804:3264(1460) ack 397 win 17520 (DF)
13:47:28.365142046 truncated-ip - 1322 bytes missing!capc25.muc.796 > caes04.muc.shilp: . 3264:4724(1460) ack 397 win 17520 (DF)
13:47:28.482136300 caes04.muc.shilp > capc25.muc.796: . ack 4724 win 55652
13:47:28.489517784 truncated-ip - 1322 bytes missing!capc25.muc.796 > caes04.muc.shilp: . 4724:6184(1460) ack 397 win 17520 (DF)
13:47:28.490018916 truncated-ip - 1322 bytes missing!capc25.muc.796 > caes04.muc.shilp: . 6184:7644(1460) ack 397 win 17520 (DF)
13:47:28.490313868 truncated-ip - 1322 bytes missing!capc25.muc.796 > caes04.muc.shilp: . 7644:9104(1460) ack 397 win 17520 (DF)
13:47:28.490566573 truncated-ip - 1322 bytes missing!capc25.muc.796 > caes04.muc.shilp: . 9104:10564(1460) ack 397 win 17520 (DF)
13:47:28.685246999 caes04.muc.shilp > capc25.muc.796: . ack 2059190468 win 49812

and on Linux (capc25):
13:47:28.324042 > capc25.muc.796 > caes04.muc.nfs: P 2059179904:2059180060(156) ack 4022052897 win 17520 (DF)
13:47:28.330599 < caes04.muc.nfs > capc25.muc.796: P 1:121(120) ack 156 win 60032
13:47:28.330620 > capc25.muc.796 > caes04.muc.nfs: . 156:156(0) ack 121 win 17520 (DF)
13:47:28.330857 > capc25.muc.796 > caes04.muc.nfs: P 156:344(188) ack 121 win 17520 (DF)
13:47:28.350291 < caes04.muc.nfs > capc25.muc.796: P 121:397(276) ack 344 win 60032
13:47:28.350556 > capc25.muc.796 > caes04.muc.nfs: . 344:1804(1460) ack 397 win 17520 (DF)
13:47:28.350569 > capc25.muc.796 > caes04.muc.nfs: . 1804:3264(1460) ack 397 win 17520 (DF)
13:47:28.350581 > capc25.muc.796 > caes04.muc.nfs: . 3264:4724(1460) ack 397 win 17520 (DF)
13:47:28.475691 < caes04.muc.nfs > capc25.muc.796: . 397:397(0) ack 4724 win 55652
13:47:28.475724 > capc25.muc.796 > caes04.muc.nfs: . 4724:6184(1460) ack 397 win 17520 (DF)
13:47:28.475734 > capc25.muc.796 > caes04.muc.nfs: . 6184:7644(1460) ack 397 win 17520 (DF)
13:47:28.475743 > capc25.muc.796 > caes04.muc.nfs: . 7644:9104(1460) ack 397 win 17520 (DF)
13:47:28.475752 > capc25.muc.796 > caes04.muc.nfs: . 9104:10564(1460) ack 397 win 17520 (DF)
13:47:28.678570 < caes04.muc.nfs > capc25.muc.796: . 397:397(0) ack 10564 win 49812
13:47:28.678604 > capc25.muc.796 > caes04.muc.nfs: . 10564:12024(1460) ack 397 win 17520 (DF)
13:47:28.678614 > capc25.muc.796 > caes04.muc.nfs: . 12024:13484(1460) ack 397 win 17520 (DF)
13:47:28.678623 > capc25.muc.796 > caes04.muc.nfs: . 13484:14944(1460) ack 397 win 17520 (DF)
13:47:28.678632 > capc25.muc.796 > caes04.muc.nfs: . 14944:16404(1460) ack 397 win 17520 (DF)
13:47:28.678642 > capc25.muc.796 > caes04.muc.nfs: . 16404:17864(1460) ack 397 win 17520 (DF)
13:47:28.884628 < caes04.muc.nfs > capc25.muc.796: . 397:397(0) ack 17864 win 42512


I can send you the whole dump if you think it's helpful.

The Linux settings:
Linux capc20 2.4.15pre5-sc1 #1 Fri Nov 16 10:26:21 CET 2001 i686 unknown

Gnu C 2.96
Gnu make 3.79.1
binutils 2.10.91.0.2
util-linux 2.11f
mount 2.11g
modutils 2.4.6
e2fsprogs 1.23
PPP 2.4.0
Linux C Library 2.2.4
Dynamic linker (ldd) 2.2.4
Procps 2.0.7
Net-tools 1.57
Console-tools 0.3.3
Sh-utils 2.0
Modules Loaded firegl23 3c59x usb-uhci usbcore

Cheers,
Birger

> Cheers,
> Trond
>
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