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<font size=3>Jorg,<br><br>
It might be that the executable is corrupted by NFS during delivery to
that node. Once that happens, the cached copy can stay bad.
You can check it by comparing md5sum results on that node and on the node
that owns the original. <br><br>
There's a thread back in December of last year titled "NFS Read
Errors" that tells about my experience. I never found a
solution except to get rid of the Redhat 9 systems....<br><br>
<br>
Mike<br><br>
<br>
At 07:24 AM 7/23/2008, you wrote:<br>
<blockquote type=cite class=cite cite="">Dear all,<br><br>
I have a problem with a selfwritten program on my small cluster. The
cluster <br>
nodes are PIII 500/800 MHz machines, the /home is distributed via NFS
from a <br>
PIII 1 GHz machine. All nodes are running on Debian Etch. The program in
<br>
question (polymc_s) is in the users /home directory and is running on all
<br>
nodes but one. I get the following error messages on that particular node
<br>
(node4):<br>
ldd polymc_s <br>
not a dynamic
executable<br><br>
file polymc_s<br>
polymc_s: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), for
<br>
GNU/Linux 2.4.1, dynamically linked (uses shared libs), for GNU/Linux
2.4.1, <br>
not stripped<br><br>
strace ./polymc_s <br>
execve("./polymc_s", ["./polymc_s"], [/* 18 vars */])
= -1 ENOMEM (Cannot <br>
allocate memory)<br>
+++ killed by SIGKILL +++<br>
Process 2177 detached<br><br>
I am currently running memtest, no problems thus far. Other programs like
the <br>
BOINC stuff (I am using that for stress-testing) are ok. Reuti already
<br>
suggested to do:<br>
readelf -a polymc_s<br>
which gave identical outputs on node4 and node3 (both are PIII 500 MHz
<br>
machines). I am somehow stuck here, has anybody got a good idea? Running
the <br>
software locally does not make any difference, i.e. same errors as above.
<br>
Changing the file permissions did not mend it either. I am aware these
are <br>
old nodes, but for the purpose they are ok.<br><br>
All the best from Graz!<br><br>
Jörg<br>
-- <br>
*************************************************************<br>
Jörg Saßmannshausen<br>
Institut für Chemische Technologie von Materialien<br>
TU-Graz<br>
Stremayrgasse 16<br>
8010 Graz<br>
Austria<br><br>
phone: +43 (0)316 873 8954<br>
fax: +43 (0)316 873 4959<br>
homepage:
<a href="http://sassy.formativ.net/" eudora="autourl">
http://sassy.formativ.net/</a><br><br>
Please avoid sending me Word or PowerPoint attachments.<br>
See
<a href="http://www.gnu.org/philosophy/no-word-attachments.html" eudora="autourl">
http://www.gnu.org/philosophy/no-word-attachments.html</a><br>
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