Re: Possible data corruption with dm-thin

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Hi Joe,

Sorry for the late reply. We have been fixing bugs and conducting many experiments with heavy I/O to verify the correctness and stability of our storage. This problem I mentioned in this thread cannot be reproduced anymore with these two patches (I applied them back to 3.19.8 and 4.2.8 and both work fine).

Thanks for your help.

Dennis 

2016-07-01 21:18 GMT+08:00 Edward Thornber <thornber@xxxxxxxxxx>:
Hi Dennis,

Sorry to take so long about getting back to you.  There was a bug in
the btree library that I mistakenly thought was caused by my fix for
your problem.  Anyway, could you try and recreate your problem with
these two patches applied please (patches are against v4.7-rc5 + my
usual thin-dev extras):

    https://github.com/jthornber/linux-2.6/commit/ebdd99fc12acd0e9178831549896633171d5af1d
    https://github.com/jthornber/linux-2.6/commit/c05989b59d091270c2bf7dd05bdb7a3575223529

Thanks,

- Joe



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Dennis Yang  
QNAP Systems, Inc.
Skype: qnap.dennis.yang
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 dennisyang@xxxxxxxx
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