On Feb 26, 2025 / 15:20, Shin'ichiro Kawasaki wrote: > The test case zbd/012 fails occasionally due to a sudden fio stop. At > the fio stop, fio outputs the following error message: > > fio: unable to set io scheduler to none > fio: pid=119786, err=22/file:backend.c:1485, func=iosched_switch, error=Invalid argument > [...] > > To avoid the failure, drop the --scheduler=none option from the fio > command in the test case zbd/012. I confirmed that the test case still > can recreate the hang with this fix, using the kernel v6.12. FYI, I applied this patch.
