[Bug 16081] Data loss after crash during heavy I/O

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https://bugzilla.kernel.org/show_bug.cgi?id=16081





--- Comment #10 from Eric Sandeen <sandeen@xxxxxxxxxx>  2010-06-02 18:06:54 ---
(In reply to comment #8)
> Created an attachment (id=26619)
 --> (https://bugzilla.kernel.org/attachment.cgi?id=26619) [details]
> root-filesystem borkage

How confident are you in your storage?

> [  765.812082] attempt to access beyond end of device
> [  765.812088] dm-6: rw=256, want=18808645176, limit=8388608

the "want" value (in sectors) is ~9T.

The limit is oddly (?) 2^23 - 8388608, that many sectors comes out to exactly
4T.

IOW, now your block device appears to be much smaller than your filesystem....

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