I hope this is of some use. This is mainly for Waldek but there may be others with relevant knowledge or an interest in what's going on. Just delete this message if that doesn't include you!
After rebuilding poplog with Walldek's patch installed, in fedora 32 wtih an old kernel and checking that it worked as expected, I then rebooted into a new kernel (5.11.14) and found, like Steve, that running pop11, or even basepop11 produces an infinite loop. I then found that running strace -o p_trace basepop11 also gets into an infinite loop producing a huge file. There's probably a strace parameter to prevent that but I simply ran it for a short time and interrupted. That produced an 8.9MB output file. I could have tried again interrupting earlier, but instead I simply attach an 82Kb gzipped version of p_trace. Apologies for not looking to see where the repetiton starts and truncating. [Incidentally, this multi-part message including attachment is all created by Ved, using LIB VED_ATTACH] since I write all mail in Ved, and use ved_send to post messages. I have just noticed Steve's latest message with strace output. Apologies for repetition. Perhaps comparing the two contexts of execution, on two versions of linux, may be illuminating. Aaron http://www.cs.bham.ac.uk/~axs
ptrace-out.gz
Description: GNU Zip compressed data
