Re: XFS - issues with writes using sync

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On Thu, Jan 20, 2011 at 4:19 PM, Dave Chinner <david@xxxxxxxxxxxxx> wrote:
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 2.6.35.9, it is not passing our basic
> tests. Checking few more things, before deciding about the patches which got
> introduced between 2.6.34 ~ 2.6.35.9(around 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.

>> yes, this is quite possible - last time, we found an issue like this on MIPS(related with flushing).
 
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...
>> if other activities are not assigned in the mean time :), I will verify the exact reason for this issue. I do have working and issue causing setups - so will check with both and update.
 
Thanks,
Amit Sahrawat
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