On Wed, Mar 07, 2018 at 11:01:40AM +0800, rong zhao wrote: > > I downloaded the latest e2fsprogs source code from kernel.org, it works. I'm not sure what the difference is, but I'm *shocked* that RHEL 7.4 is still using e2fsprogs 1.42.x. There are a very large number of resize2fs bugs, especially with very large file systems, with e2fsprogs 1.42.x. Especially in the case of off-line resizes with a lage ext4 file system, with a resize2fs from e2fsprogs 1.42.x, data corruption is almost a certainty. If you have used resize2fs 1.42.x on that file system, I would suggest running e2fsck on your large ext4 file system unmounted when you have a chance, to make sure it's in a good and healthy state. Regards, - Ted