Re: Input/Output errors

[Marc MERLIN <marc@merlins.org>]

On Tue, Feb 23, 2016 at 08:40:46PM -0400, Kenny MacDermid wrote:
> I'm running btrfs on DM-Crypt Luks running on LVM.
> 
> Occasionally I get files that are unreadable for some period of time.
> Attempting to read from them results in an 
> 
> Input/output error
> 
> Sometimes they'll come back on their own, and sometimes a scrub seems to
> help, but sometimes I just have to delete them.
> 
> Nothing shows up in dmesg when these occur, and I can't predict which
> files it will be, or what causes it.
> 
> It's currently happening running 4.4.1-2-ARCH, but I've seen the same
> thing for many previous kernel versions.
> 
> Does anyone have any suggestions?

That's weird to say the least, you should at least get *something* in
dmesg.
And you are getting other error messages and btrfs kernel messages in
your logs?

When whatever app you have that's trying to read them fails, I assume
they also fail with cat or less?

Marc
-- 
"A mouse is a device used to point at the xterm you want to type in" - A.S.R.
Microsoft is to operating systems ....
                                      .... what McDonalds is to gourmet cooking
Home page: http://marc.merlins.org/                         | PGP 1024R/763BE901