Thank you for your comment, Caroline ! Sorry for this late reply.
The environment I got the backtrace was on Ubuntu.
As you kindly pointed out, my backtrace was without some dbgsym packages.
After installing some *-dbgsym packages lacking, I get the backtrace again.
The result is attached in this comment.
I cannot find the appropriate dbgsym for uncovering ?? of "libQt3support.so.4."
If you know it and let me know it, I will get the backtrace once again.
After this, I'm going to run and check tulip on Kubuntu and Debian unstable environments.
Thank you for your comment, Caroline ! Sorry for this late reply.
The environment I got the backtrace was on Ubuntu. so.4."
As you kindly pointed out, my backtrace was without some dbgsym packages.
After installing some *-dbgsym packages lacking, I get the backtrace again.
The result is attached in this comment.
I cannot find the appropriate dbgsym for uncovering ?? of "libQt3support.
If you know it and let me know it, I will get the backtrace once again.
After this, I'm going to run and check tulip on Kubuntu and Debian unstable environments.
Thank you again !