[uml-devel] debugging UML cores

[Joe Marzot <gmarzot@nortelnetworks.com>]

Hi UML developers,

I am getting a variety of cores from UML - fairly intermittent. The bad 
part is that examining these cores with GDB is utterly fruitless (for 
me). Are there some tricks beyond the normal stuff below I should be 
doing to get a better sense of what is going wrong? I see no back trace 
and no thread info. thanks for any help, Giovanni

[root@wbl6y227 plankton]# /usr/local/builds/gdb-6.2/gdb/gdb -c 
/bne/home/gmarzot/proj/celp/cores/core_sanity_crash_8_11 celp/linux.celp
GNU gdb 6.2
Copyright 2004 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain 
conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type "show warranty" for details.
This GDB was configured as "i686-pc-linux-gnu"...Using host libthread_db 
library "/lib/libthread_db.so.1".

Core was generated by `/vob/neptune/plankton/celp/linux.celp (CSC-0-4-0) 
[/sbin/modprobe]            '.
Program terminated with signal 11, Segmentation fault.
#0  0x00000000 in ?? ()
(gdb) where
#0  0x00000000 in ?? ()
(gdb) bt
#0  0x00000000 in ?? ()
(gdb) info thr
* 1 process 12718  0x00000000 in ?? ()
warning: Couldn't restore frame in current thread, at frame 0
0x00000000 in ?? ()
(gdb)



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