Hello Jens, Please consider these two small patches that (1) clarify an error message and (2) fix a segfault. Vincent Vincent Fu (2): backend: clarify io scheduler setting error message ioengines: fix crash with --enghelp option backend.c | 2 +- ioengines.c | 10 +++++----- 2 files changed, 6 insertions(+), 6 deletions(-) -- 2.25.1