Hi Duncan,
On Fri, Jan 1, 2016 at 12:05 PM, Duncan <1i5t5.duncan@xxxxxxx> wrote:
> John Center posted on Fri, 01 Jan 2016 11:41:20 -0500 as excerpted:
>
>> If this doesn't resolve the problem, what would you recommend my next
>> steps should be? I've been hesitant to run too many of the btrfs-tools,
>> mainly because I don't want to accidentally screw things up & I don't
>> always know how to interpret the results. (I ran btrfs-debug-tree,
>> hoping something obvious would show up. Big mistake. 😋)
>
> LOLed at that debug-tree remark. Been there (with other tools) myself.
>
> 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.
>
> 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, I'm at the next bridge. :-( I upgraded the kernel to 4.4rc7 from
the Ubuntu Mainline archive & I just ran the scrub:
john@mariposa:~$ sudo /sbin/btrfs scrub start -BdR /dev/md125p2
ERROR: scrubbing /dev/md125p2 failed for device id 1: ret=-1, errno=5
(Input/output error)
scrub device /dev/md125p2 (id 1) canceled
scrub started at Fri Jan 1 19:38:21 2016 and was aborted after 00:02:34
data_extents_scrubbed: 111031
tree_extents_scrubbed: 104061
data_bytes_scrubbed: 2549907456
tree_bytes_scrubbed: 1704935424
read_errors: 0
csum_errors: 0
verify_errors: 0
no_csum: 1573
csum_discards: 0
super_errors: 0
malloc_errors: 0
uncorrectable_errors: 0
unverified_errors: 0
corrected_errors: 0
last_physical: 4729667584
I checked dmesg & this appeared:
[11428.983355] BTRFS error (device md125p2): parent transid verify
failed on 241287168 wanted 33554449 found 17
[11431.028399] BTRFS error (device md125p2): parent transid verify
failed on 241287168 wanted 33554449 found 17
Where do I go from here?
Thanks for your help.
-John
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