bad parm to SockSelect segfaults 4.1.3 64-bit debian 7
The issue occurs when the stem containing write sockets is incorrectly set (initially due to a typo). Not tested with the other sockets stems, but I suspect the same problem would occur.
Running udptest2.rex without a parameter sets the socket stem correctly and works. Running udptest2.rex with the parameter 'fail' sets the socket stem incorrectly and segfaults.
[614345.855481] udptest2.rex: segfault at 18 ip 00007f96fd6caf29 sp 00007fff8f34a160 error 4 in librexx.so.4.0.5[7f96fd587000+179000]
Additionally, there was no such problem in 4.1.0, making the while thing even more mysterious after an upgrade.