UBIFS failure & stable page writes

[Prins Anton (ST-CO/ENG1.1)]

Hi Mats,

We are not using extended attributes, so I expect no relation with our findings.

Thanks,

Anton

-----Original Message-----
From: Mats Kärrman [mailto:Mats.Karrman at tritech.se] 
Sent: vrijdag 28 juni 2013 11:05
To: Prins Anton (ST-CO/ENG1.1); Adrian Hunter
Cc: linux-mtd at lists.infradead.org; dedekind1 at gmail.com
Subject: RE: UBIFS failure & stable page writes

Hi Anton,

Thanks for your efforts!
The tests I have run has shown no regressions, but some stability improvements in the integck test.
(I still have not been able to reproduce the orphan node 1 problem myself though.)

A question; do you use file extended attributes? I have seen problems in this area while running
integck and also tested patches that seem to help.
ref: http://thread.gmane.org/gmane.linux.drivers.mtd/47021

BR // Mats

> From: Prins Anton (ST-CO/ENG1.1) [Anton.Prins at nl.bosch.com]
> Sent: Tuesday, June 25, 2013 10:21 AM
> To: Adrian Hunter
> Cc: Mats Kärrman; linux-mtd at lists.infradead.org; dedekind1 at gmail.com
> Subject: RE: UBIFS failure & stable page writes
> 
> Another weekend of tests, including the patches showed no more logging of writing orphan node 0.
> Also the 0xdead4ead did not appear; so the patches certainly do their job!
> 
> We do not have hard evidence the missing root node is caused by this 'writing of free-ed memory'.
> But at least it seems a good suspect! Because the occurrence is very low we will continue testing...
> (And go back mounting synchronous to get some higher occurrence...)
> 
> I'll keep you up-to-date.
> 
> Anton