Re: [PATCH v3] fstests: btrfs/159 superblock corruption test case

Anand Jain
2018-04-13T22:41:45Z

>> +# Test if the superblock corruption is handled correctly:
>> +# - Test fsid miss-match (csum ok) between primary and copy superblock
>> +# Fixed by the ML patch:
>> +# btrfs: check if the fsid in the primary sb and copy sb are same
>> +# - Test if the mount fails if the primary superblock csum is
>> +# corrupted on any disk
>> +# - Test if the mount does not fail if the copy1 sb csum is corrupted
>> +# Fixed by the ML patches:
>> +# btrfs: verify superblock checksum during scan
>> +# btrfs: verify checksum for all devices in mount context
>
> Do you have a tree that I can pull from? I want to make sure the test
> does pass on patched kernel, but the patchset doesn't apply on v4.16
> kernel.

We have new discussions on whether to check for the alien-superblock and
the superblock-checksum at the mount and scan time respectively. And
depending on its outcome this test-case should be modified as well. So
can you please defer this fstest patch, for now, I shall send a revised
fstest patch when kernel patches gets integrated.

In any case, if you want to give a try, those patches are base on kdave
repo at [1].
[1]
https://github.com/kdave/btrfs-devel.git misc-next

Thanks, Anand

> Thanks,
> Eryu
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