Also, since the problem prevented me from syncing my other filesystmes
I couldn't capture the debug info.

It vanished during the cold boot still sitting in dirty page cache.

On Fri, Aug 31, 2012 at 11:44 PM, Shentino <shent...@gmail.com> wrote:
> How effective would it be to directly write to the underlying device
> and then running tests to see if the corruption is properly detected?
>
> I just ran a fuzz test by syncing, and then manually corrupting a file
> with the help of a surgical sed (yes, the before and after patterns
> had fixed equal lengths).  First I got an I/O error (expected), then I
> ran scrub and got more problems (not ok), the system froze (not good),
> a reboot failed to mount the system again (worse), and then the fsck
> program dumped core.
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