Re: btrfs scrub failing

[John Center <jlcenter15@gmail.com>]

Hi Duncan,

> On Jan 1, 2016, at 12:05 PM, Duncan <1i5t5.duncan@cox.net> wrote:
> 
> John Center posted on Fri, 01 Jan 2016 11:41:20 -0500 as excerpted:
> 
>> Ok, I'll upgrade to 4.3 & see if that resolves the problem with
>> scrubbing.
>> I was wondering when I compiled the btrfs-tools if there would be a
>> problem with them not being in sync with the major kernel version.
> 
> FWIW newer (or older either, as long as not too old and you don't need 
> any of the features not in the older, and you're not trying to fix 
> problems only the newer can deal with) versions of btrfs-progs should be 
> fine.  As a rule of thumb I recommend staying at least current to kernel 
> version, but that's a rule of thumb, primarily to prevent getting /too/ 
> old, only.  Both the btrfs-progs userspace and the kernel itself are 
> normally designed to be able to work with both older and newer versions 
> of the other one.
> 
> So userspace not being in sync with the kernel version shouldn't be a 
> problem.
> 
Ok, good to know. 

> Well, I'm hoping someone who had the problem can confirm whether it's 
> fixed in current kernels (scrub is one of those userspace commands that's 
> mostly just a front-end to the kernel code which does the real work, so 
> kernel version is the important thing for scrub).  I'm guessing so, and 
> that you'll find the problem gone in 4.3.
> 
I wasn't aware of this. Good to know. 

> We'll cross the not-gone bridge if we get to it, but again, if the other 
> people who had the similar problem can confirm whether it disappeared for 
> them with the new kernel, it would help a lot, as there were enough such 
> reports that if it's the same problem and still there for everyone (which 
> I doubt as I expect there'd still be way more posts about it if so, but 
> confirmation's always good), nothing to do but wait for a fix, while if 
> not, and you still have your problem, then it's a different issue and the 
> devs will need to work with you on a fix specific to your problem.
> 
Ok, understood. 

Thanks & Happy New Year!

    -John