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mds: catch damage to dentry's first field #49773

Merged
merged 9 commits into from
Mar 29, 2023
Merged

mds: catch damage to dentry's first field #49773

merged 9 commits into from
Mar 29, 2023

Commits on Mar 29, 2023

  1. mds: cleanup code 

    Signed-off-by: Patrick Donnelly <pdonnell@redhat.com>
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    batrick committed Mar 29, 2023
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  2. mds: add debugging for pre_cow_old_inode 

    Signed-off-by: Patrick Donnelly <pdonnell@redhat.com>
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    batrick committed Mar 29, 2023
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  3. mds: catch damage to dentry's first field 

    When possible. Abort the MDS before it can be written to the
journal/directory.

This is part of a series to address corruption first observed in [1].
How the corruption is introduced is yet unknown.

[1] https://tracker.ceph.com/issues/38452#note-10

Fixes: http://tracker.ceph.com/issues/58482
Signed-off-by: Patrick Donnelly <pdonnell@redhat.com>
    @batrick
    batrick committed Mar 29, 2023
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  4. mds: provide test configs for creating first corruption 

    Signed-off-by: Patrick Donnelly <pdonnell@redhat.com>
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    batrick committed Mar 29, 2023
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  5. qa/tasks: allow specifying timeout command prefix to ceph 

    Signed-off-by: Patrick Donnelly <pdonnell@redhat.com>
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    batrick committed Mar 29, 2023
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  6. qa/tasks/cephfs: use rank_asok and allow specifying rank 

    This will use the more efficient:

    ceph tell mds.<fsname>:<rank> ...

Signed-off-by: Patrick Donnelly <pdonnell@redhat.com>
    @batrick
    batrick committed Mar 29, 2023
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  7. qa/tasks/cephfs: test damage to dentry's first is caught 

    Signed-off-by: Patrick Donnelly <pdonnell@redhat.com>
    @batrick
    batrick committed Mar 29, 2023
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  8. qa: add missing scan_links step for data scan recovery 

    Without, the first field remains corrupt (HEAD).

Signed-off-by: Patrick Donnelly <pdonnell@redhat.com>
    @batrick
    batrick committed Mar 29, 2023
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  9. mds: add config to decide whether to mark dentry bad 

    So admin can restore access to files if necessary.

Signed-off-by: Patrick Donnelly <pdonnell@redhat.com>
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    batrick committed Mar 29, 2023
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