Re: Brief report: QNAP TS-212P with linux-image-kirkwood 4.0.0-2

[Ian Campbell <ijc@debian.org>]

On Sun, 2015-05-31 at 15:55 +0200, JM wrote:
> Yes, I managed to catch it in the act:
> 
> http://pastebin.com/PYqqrcLX
> 
> 
> Basically, the device stalls during the flashing process (which takes
> maybe three minutes), and that seems to cause sata to time out, and
> eventually everything gets remounted read-only.  Now if I recall
> correctly, I'd get sata link timeouts with 3.16 as well, but it
> behaved more gracefully (reset a couple of times and was back in
> business after the flashing was done).

I wonder if that somehow relates to this coherency issue:
http://lists.infradead.org/pipermail/linux-arm-kernel/2015-May/347665.html
which turned out to be fixed by:
http://article.gmane.org/gmane.linux.kernel.stable/137371

If not then I think this would be something worth raising with the
upstream developers.

Ian.