[GE users] schedd hangs with infinite loop :-((

Christian Kauhaus ckauhaus at informatik.uni-jena.de
Thu Apr 1 17:31:00 BST 2004

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I've got news on this issue - since the scheduler was hanging again, I
tried to restart it. This time it crashed. Fortunately I've set the
debug level to 1, so I've got a log and a core dump.

This is the backtrace:

$ gdb bin/glinux/sge_schedd default/spool/qmaster/schedd/core.7041
GNU gdb 5.3-debian
This GDB was configured as "i386-linux"...
Core was generated by `sge_schedd'.
Program terminated with signal 11, Segmentation fault.
Reading symbols from /lib/libm.so.6...done.
Loaded symbols for /lib/libm.so.6
Reading symbols from /lib/libc.so.6...done.
Loaded symbols for /lib/libc.so.6
Reading symbols from /lib/ld-linux.so.2...done.
Loaded symbols for /lib/ld-linux.so.2
Reading symbols from /lib/libnss_files.so.2...done.
Loaded symbols for /lib/libnss_files.so.2
#0  0x0807ba34 in free_fcategories ()
(gdb) bt
#0  0x0807ba34 in free_fcategories ()
#1  0x0807f135 in sge_calc_tickets ()
#2  0x08080f59 in sge_scheduler ()
#3  0x0804e7a3 in dispatch_jobs ()
#4  0x0804df06 in scheduler ()
#5  0x0805168a in event_handler_default_scheduler ()
#6  0x0804a86a in main ()
#7  0x4005adc6 in __libc_start_main () from /lib/libc.so.6

The log file is attached.

I hope this can help to identify the cause...


Dipl.-Inf. Christian Kauhaus                               <><
Lehrstuhl Rechnerarchitektur und -kommunikation 
Institut fuer Informatik · Ernst-Abbe-Platz 1-2 · D-07743 Jena
Tel.: (+49) 3641 9 46376 · Fax: (+49) 3641 9 46372 · Raum 3217

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