[Vm-dev] Debugging Squeak with GDB: "Cannot find new threads: generic error"

André Wendt andre.wendt at hpi.uni-potsdam.de
Sun Mar 23 12:18:58 UTC 2008

Hi all,

I'm trying to debug a Squeak VM I built using GDB. However, I can't even
start up Squeak:

$ gdb ./bld/squeak
GNU gdb 6.7.1-debian
Copyright (C) 2007 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "i486-linux-gnu"...
Using host libthread_db library "/lib/i686/cmov/libthread_db.so.1".
(gdb) run squeak.image
Starting program: /home/andre/mysqueakvm/platforms/unix/bld/squeak
[Thread debugging using libthread_db enabled]
Error while reading shared library symbols:
Cannot find new threads: generic error
Cannot find new threads: generic error

Do I have to compile the VM differently in order to get it to work?

I'd appreciate any hints.


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