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Re: XFS - issues with writes using sync

To: Amit Sahrawat <amit.sahrawat83@xxxxxxxxx>
Subject: Re: XFS - issues with writes using sync
From: Dave Chinner <david@xxxxxxxxxxxxx>
Date: Thu, 20 Jan 2011 21:49:58 +1100
Cc: xfs@xxxxxxxxxxx
In-reply-to: <AANLkTi=yvf0ww4_C+H8xz6-5UWHKYSV2amCC9p-0tXrr@xxxxxxxxxxxxxx>
References: <AANLkTin22efc0cHSmM+2rNQpE2aJoobQCnMwbNUjw617@xxxxxxxxxxxxxx> <20110120051720.GR16267@dastard> <AANLkTik0KUQaRzLeBNR8M=u+ijO6gAZu601zyCp2zmDS@xxxxxxxxxxxxxx> <AANLkTi=yvf0ww4_C+H8xz6-5UWHKYSV2amCC9p-0tXrr@xxxxxxxxxxxxxx>
User-agent: Mutt/1.5.20 (2009-06-14)
On Thu, Jan 20, 2011 at 12:08:21PM +0530, Amit Sahrawat wrote:
> Hi,
> I tried with the same test case - just removed 'sync' command from the
> script(please check script below) to check the behaviour.
> I really doubt about the stability of, it is not passing our basic
> tests. Checking few more things, before deciding about the patches which got
> introduced between 2.6.34 ~ 102).

2.6.35 is perfectly fine on x86, so I suspect that it is something
ARM specific. Most likely it is related to the VIVT platform support
changes, but you really need to bisect so we know exactly waht
change has broken such basic functionality on your platform.

Note that the bug may not even be in XFS, so you really need to do a
full bisect, not just of the changes in xfs in that time...


Dave Chinner

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