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- <li><em>date</em>: Fri Apr 15 09:44:26 2005</li>
- <li><em>from</em>: greg.freemyer at gmail.com (Greg Freemyer)</li>
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- <li><em>subject</em>: [ale] dd & unexpected soft update inconsistency, HUH ?</li>
I don't fully understand why, but with mounted filesystems this was
known to cause filesystem corruption with XFS in the not too distant
past.
i.e. directly accessing the block device underlying a mounted XFS
filesystem caused filesystem corruption due to incompatible buffering
issues between the direct block access and the XFS filesystem access.
I'm almost positive that even read-only access like the above
triggered the issue and is why it was considered a significant
problem.
I don't know if any other Linux filesystems shared this issue, nor do
I know if it was ever resolved in XFS. I don't even remember if this
was 2.4 or 2.6.
Greg
--
Greg Freemyer
The Norcross Group
Forensics for the 21st Century
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<li><strong><a name="00373" href="msg00373.html">[ale] dd & unexpected soft update inconsistency, HUH ?</a></strong>
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