On Jul 13, 2023 / 13:19, Christoph Hellwig wrote: > Take a look at the "f2fs: don't reopen the main block device in > f2fs_scan_devices" thread on the block list. The first version of patch > still had issues, but there is an updated on deeper in the thread. Thanks! I found the second patch in the thread [*] and confirmed it avoids the mount failure. It also allows the test case zbd/010 pass. Looks good. [*] https://lkml.kernel.org/linux-f2fs-devel/20230711050101.GA19128@xxxxxx/