Hi, Zorro 在 2021/2/3 0:05, Zorro Lang 写道:
On Tue, Feb 02, 2021 at 08:39:56PM +0800, Sun Ke wrote:Fill the disk space, try to create some files and rename a file, mount again, list directory contents and triggers some errors. It is a regression test for kernel commit 6b4b8e6b4ad8 ("ext4: ext4: fix bug for rename with RENAME_WHITEOUT") Signed-off-by: Sun Ke <sunke32@xxxxxxxxxx> --- v3: use _check_dmesg_for() and modify the group. ---I helped to re-write this case(without loopdev, dmesg check and ext4 specific things) as below[1]. It can reproduce that bug[2], and test passed on fixed kernel[3].
Thanks for your help. Yes, it can reproduce the bug on ext4 test.
But I found another problem, we can't 100% make sure that renameat2 hit ENOSPC, even if we can't create any empty file. That renameat2 line still succeed on my XFS test. And Eric Sandeen even can't trigger that rename ENOSPC on his machine.
The same as Eric, I can not trigger that rename ENOSPC on my machine on xfs test.
Thanks, Sun Ke
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