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Date:	Tue, 9 Oct 2012 14:29:31 +0800
From:	Zheng Liu <>
To:	Theodore Ts'o <>
Subject: Re: A warning from 3.6+ with bigalloc and delalloc when running

On Tue, Oct 09, 2012 at 01:48:20AM -0400, Theodore Ts'o wrote:
> On Mon, Oct 08, 2012 at 10:59:34PM +0800, Zheng Liu wrote:
> > 
> > This warning is printed when test case #127 and #225 are being run
> > with bigalloc and delalloc.  You could use the following commands to
> > reproduce it using xfstest.
> Ah, I see I misunderstood you; I thought you had said that the tests
> had failed, I didn't realize what what you had meant was that they
> were trigging a WARN_ON.
> I believe this warning is related to the general class of bugs
> surrounding bigalloc and delalloc, once we get the extent status tree
> in mainline, I'm hoping we will be able to use it to significantly
> improve how we handle bigalloc's delalloc handling.
> Here are the results I have from running my tests, as well as the
> results from right after the previous merge window for comparison....

Sorry for my bad expression. :-(

OK, I see.  Thanks for the result.  It is very useful for me to
understand whether or not my patches break something up.

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