As mentioned by crazy_imp on IRC a while ago, the following crashes: $ sigrok-cli -d demo -O csv --samples 1000 It looks like an issue in the csv output module, but maybe it's also related to other parts of the code, didn't check.
This bug renders the CSV output completely unfunctional, elevating this bug to blocker status.
Fixes are here: http://repo.or.cz/libsigrok/gsi.git/shortlog/refs/heads/output-csv-segv-1124-v1
Fixed in 823b0e29ae8e61c98ed9cd096c9d42a008659a7d, thanks!