[Gdb] Invalid thread handle.

[Lord, Bruce J]

gdb Support:

 

I am running an application on a Sun Ultra 80 (4 processors) using OS 8.

I start the application in debug and then via terminal run gdb.

From within gdb I "attach" using the ID of the process and receive the

following diagnostics;

 

gdb
GNU gdb 5.3
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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 "sparc-sun-solaris2.8".
(gdb) attach 10572
Attaching to process 10572

:

:

Reading symbols from /usr/lib/locale/en_US.ISO8859-1/en_US.ISO8859-1.so.2...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/locale/en_US.ISO8859-1/en_US.ISO8859-1.so.2
Reading symbols from /home/users/ntwkarch/bjl2778/op_models/bjl_mm1_Pareto-mm5.s1.nt.so...done.
Loaded symbols for /home/users/ntwkarch/bjl2778/op_models/bjl_mm1_Pareto-mm5.s1.nt.so
Reading symbols from /usr/lib/libgen.so.1...done.
Loaded symbols for /usr/lib/libgen.so.1
sol-thread active.
Retry #1:
Retry #2:
Retry #3:
---Type <return> to continue, or q <return> to quit---
Retry #4:
[New LWP    1        ]
lwp_to_thread: td_thr_validate: invalid thread handle.
(gdb)

What does it mean, "lwp_to_thread: td_thr_validate: invalid thread handle."?

 

Any insight you might have will be greatly appreciated,

Bruce Lord