[PVFS-users] opendx, fgets, big files problem

[Marcelo Matus]

Dear PVFS list:

We are trying to read a large binary file from a PVFS directory
using OpenDx (which uses fgets to read) and we get the
following message

 ll_pvfs.c, 610): ll_pvfs_file_read failed on 311457
 pvfs_map_userbuf: map_user_kiobuf failed

while OpenDx reports that the end-of-file has been reached.

The  error occurs after reading around 8MB,  and the same
file shows no problem when checked using 'md5sum'. pvfs-ping
reports no problem, and all the other applications seem
to be running fine.

OpenDX also opens the same file with no problem after copying it to
a local filesystem such as /tmp.

The pvfs version is 1.6.3, kernel version Linux 2.4.21-27.0.4.ELsmp,
OpenDX 4.3.2.

Any ideas?


Marcelo