Created attachment 1963 [details]
I have a defined action:
python -c 'print 80*"-"+"\n"'; >
(ie, insert 80 dashes followed by a newline)
This has worked for years without problem. Recently, it often but not always locks up claws. Today I have a backtrace, attached, reporting a corrupted double-linked list.
Current version I'm running is 3.17.3git156, although it started happening before that version.