Re: ext4: (2.6.34-rc4): This should not happen!! Data will be lost

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On 04/20/2010 10:37 AM, Andre Noll wrote:
...

> - device timeout 30s, nobarrier
> 	No problem at all, all three runs OK.
> 
> Eric, are you still interested in seeing the blktrace output? Suppose,
> I should use a 30s timeout, nodealloc and barriers=1 as this triggers
> the problem within minutes.

Hm, so something about barriers being issued is causing timeout
problems on the device...?

since nodelalloc made it -worse- I suppose that rules out the problems
with fs flushing near ensopc, that should only be happening with delalloc.

To be honest I'm not sure what I would do with the blktrace data now,
but perhaps someone might be interested to see it; I'd at least gather it.

-Eric
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