The SUN-RPC module in 2.2.13 seems to have a problem with
amd-automount like problems: One customer of s+c have reported it with
amd and now I can reproduce it very easy with plptools at home:
It may be a NFS client problem?
You get messages like this in the syslog:
Nov 8 20:39:57 dragon kernel: nfs: task 206 can't get a request slot
Nov 8 20:39:57 dragon kernel: nfs: task 207 can't get a request slot
Nov 8 20:39:57 dragon kernel: nfs: task 208 can't get a request slot
Nov 8 20:39:57 dragon kernel: nfs: task 209 can't get a request slot
Nov 8 20:39:57 dragon kernel: nfs: task 210 can't get a request slot
Nov 8 20:39:57 dragon kernel: nfs: task 211 can't get a request slot
Nov 8 20:39:58 dragon kernel: nfs: server localhost OK
Nov 8 20:39:58 dragon last message repeated 12 times
Nov 8 20:40:09 dragon kernel: nfs: task 239 can't get a request slot
Nov 8 20:40:09 dragon kernel: nfs: task 240 can't get a request slot
Nov 8 20:40:10 dragon kernel: nfs: task 164 can't get a request slot
Nov 8 20:40:10 dragon kernel: nfs: task 185 can't get a request slot
Seems like an `overrun` problem to me.
Both amd and plptools (ftp://ftp.to.com/pub/plptools) are programs
which are mounting itself as a NFS server into the kernel. plptools
directs request for this virtual disk to a Psion 5 palmtop via a serial
link.
I can easy reproduce it copying a large (~600KB) file onto the
Psion5. BTW: The link speed is 115200 Baud. After seeing this
messages the NFS system behaves a little bit weird ;-(
I have made some debugs with echo 15 > /proc/sys/sunrpc/rpc_debug, but
they are too big to post here. Please ask me for a copy if you like to
look into it.
Please CC to me, because I am not on the linux-kernel list.
Cheers,
Olaf
----
Dr. Olaf Flebbe Phone +49 (0)7071-9457-32
science + computing gmbh FAX +49 (0)7071-9457-27
Hagellocher Weg 71
D-72070 Tuebingen Email: o.flebbe@science-computing.de
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