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Brian Foster
85fac07e87
XFS had a data corruption problem where writeback of pages to unwritten extents would fail to run unwritten extent conversion at I/O completion. This causes subsequent reads of written, but unconverted regions to return zeroes. This occurs on sub-page block size filesystems when writeback contends for the inode lock (e.g., with a file writer). Add a test that creates the conditions to reproduce the data corruption and detect it by looking for unwritten extents after all said extents have been overwritten. Signed-off-by: Brian Foster <bfoster@redhat.com> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
6 lines
98 B
Plaintext
6 lines
98 B
Plaintext
QA output created by 032
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100 iterations
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0000000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
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*
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0100000
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