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Darrick J. Wong
db8feee949
While active, the media backing a swap file is leased to the kernel. Userspace has no business writing to it. Make sure we can't do this. The two kernel patches titled as below should fix the bug: mm: set S_SWAPFILE on blockdev swap devices vfs: don't allow writes to swap files Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Eryu Guan <guaneryu@gmail.com> Signed-off-by: Eryu Guan <guaneryu@gmail.com>
15 lines
283 B
Plaintext
15 lines
283 B
Plaintext
QA output created by 569
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verb 1
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pwrite: Text file busy
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verb 2
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mmap: Text file busy
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verb 3
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Caught signal 7, terminating...
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verb 4
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pwrite: Text file busy
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pwrite: Text file busy
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mmap: Text file busy
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no mapped regions, try 'help mmap'
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ftruncate: Text file busy
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fallocate: Text file busy
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