Re: [PATCH V4 00/20] Fix tests to work on non-4k block sized fs instances

[Eryu Guan <guaneryu@gmail.com>]

On Thu, Sep 20, 2018 at 05:33:58PM +0800, Zorro Lang wrote:
> On Wed, Sep 19, 2018 at 05:30:33PM +0530, Chandan Rajendra wrote:
> > This patchset fixes tests (mostly XFS specific ones) to work on
> > variable block size. These patches now use the output of "od" utility
> > to verify the contents of the test files instead of the md5sum
> > utility.
> > 
> > Also, The patchset modifies _filter_fiemap() filter function to
> > optionally print the file offset range in block size units.
> > 
> > Changelog:
> > V3->V4:
> > 1. The following tests now use _get_file_block_size() function to obtain the
> >    underlying filesystem's block size.
> >    xfs/009
> >    xfs/074
> >    xfs/139
> >    xfs/140
> >    xfs/299
> >    generic/018
> >    generic/177
> >    generic/130
> > 2. xfs/139 now creates a scratch filesystem with AG size of 8192 filesystem
> >    blocks instead of the previously used 4400 filesystem blocks.
> > 3. xfs/050 has now been fixed to work with 512 byte sized filesystem blocks.
> >    The "block soft" limit and "block hard" limit values have been increased to
> >    enable the user to have enough blocks in quota to be able to create the
> >    required test files when using 512 byte filesystem blocks.
> 
> Hi,
> 
> Test passed on 512b XFS this time [1]. BTW:
>  - xfs 64k blocksize test PASS
>  - xfs default blocksize test PASS
>  - ext4 64k blocksize test PASS
>  - ext4 default blocksize test PASS

Thanks a lot for testing, Zorro!!

As I don't have access to hardware that supports 64k page, so I only
tested them on x86_64 hardware. I tested all explicitly modified cases
and all cases use _filter_fiemap helper, with test matrix 4k/2k/1k/512 x
v4/v5/reflink/rmapbt on xfs, 4k/2k/1k on ext4 and btrfs. I also hit some
other failures that we need to look into.

xfs/299 fails (and only fails) on 1k block size xfs with reflink or
rmapbt feature enabled. e.g.

 *** push past the hard inode limit (expect EDQUOT)
 [ROOT] 0 0 0 00 [--------] 3 0 0 00 [--------] 0 0 0 00 [--------]
-[NAME] 35 25 125 00 [7 days] 9 4 10 00 [7 days] 0 0 0 00 [--------]
+[NAME] 35 25 125 00 [7 days] 6 4 10 00 [7 days] 0 0 0 00 [--------]
 
 *** push past the hard block limit (expect EDQUOT)
 [ROOT] 0 0 0 00 [--------] 3 0 0 00 [--------] 0 0 0 00 [--------]
-[NAME] =OK= 25 125 0 [7 days] 9 4 10 00 [7 days] 0 0 0 00 [--------]
+[NAME] =OK= 25 125 0 [7 days] 6 4 10 00 [7 days] 0 0 0 00 [--------]
...

And generic/473 fails on xfs with all test combinations. e.g. the diff on 4k
block size v4 xfs

     1: [256..287]: hole
     Hole + Data
     0: [0..127]: hole
    -1: [128..255]: data
    +1: [128..135]: data
     Hole + Data + Hole
     0: [0..127]: hole

Thanks,
Eryu