Hello all.
As it seems (to me), there is some serious problem in the NFS code of
2.4.21 (and also of 2.4.20), causing I/O errors quite immediately.
Symptoms are as follows:
Setup:
Machine A, running 2.4.21 with NFSv3 client/server
Machine B, running 2.4.19 with NFSv3 client/server
(CONFIG_NFS_FS=y
CONFIG_NFS_V3=y
CONFIG_NFSD=y
CONFIG_NFSD_V3=y
)
Both machines run the Kernel Automounter v4 (CONFIG_AUTOFS4_FS=y)
(this should not matter: both machines are running debian testing,
both have 3c905B ethernet cards)
We copy a file of ca. 100 MB size.
- logged in on machine A:
cp /A_dir/file /B_dir: I/O error (after 1056768 bytes are written)
- logged in on machine B:
cp /A_dir/file /B_dir: ok
No error messages are written to the logfiles (client and server), and the
same problem also occurs if we run 2.4.20 instead of 2.4.21.
If _both_ machines run 2.4.21, we get the same problem, i.e. pulling a
file via NFS to a local disk works, pushing to a remote disk fails.
Since we do not get any error messages in the logs, only the plain
"Input/output error" from cp, tracking down the problem is, from our side,
a bit difficult. The size of the file written until the error occurs could
help, it seems to be constant also for different files.
I am curious that this problem never had been observed before, since it
also seems to exist in 2.4.20. At least I did not find any previous
description in the archives.
If I can be of any further help, providing more information or do some
testing, just contact me. If you have any solution, please also give me a
hint ;-) This problem is a bit annoying...
Best regards,
Ole
-- +------------------------------------------------------------------------------+ Ole Marggraf email: marggraf@gmx.net Sternwarte, Universitaet Bonn marggraf@astro.uni-bonn.de Auf dem Huegel 71 D-53121 Bonn, Germany WWW: http://www.astro.uni-bonn.de/~marggraf +------------------------------------------------------------------------------+ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
This archive was generated by hypermail 2b29 : Mon Jun 23 2003 - 22:00:19 EST