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Eryu Guan
80ec2dd71c
From mmap(2) manpage, "a file is mapped in multiples of the page size. For a file that is not a multiple of the page size, the remaining memory is zeroed when mapped", this test is to test this behavior on truncate down. This is inspired by an XFS bug that truncate down fails to zero page cache beyond new EOF and causes stale data written to disk unexpectedly and a subsequent mmap sees non-zeros post EOF. Patch "xfs: truncate pagecache before writeback in xfs_setattr_size()" fixed the bug on XFS. Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Eryu Guan <eguan@redhat.com>
10 lines
245 B
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10 lines
245 B
Plaintext
QA output created by 469
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fsx --replay-ops fsxops.0
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