Thread (6 messages) 6 messages, 2 authors, 2013-07-17

Re: Scrubbing "check" not working for RAID10 in 3.10-rc1+

From: Brassow Jonathan <hidden>
Date: 2013-07-17 18:24:55

On Jul 16, 2013, at 2:01 AM, NeilBrown wrote:
On Mon, 15 Jul 2013 10:35:07 -0500 Brassow Jonathan [off-list ref]
wrote:
quoted
On Jun 25, 2013, at 1:32 AM, NeilBrown wrote:
quoted
On Tue, 25 Jun 2013 01:19:20 -0500 Jonathan Brassow [off-list ref]
wrote:
quoted
Neil,

I've noticed that the "check" operation no longer works for RAID10.  It
works just fine for the other RAIDs.  The ("data-check") sync_thread
kicks off just fine, sync_request_write() is called, but it never gets
past:
      if (i == conf->copies)
              goto done;
The test I am performing creates a RAID array, waits for it to sync,
shuts it down, writes random data to one of the devices, assembles the
array, and then runs a "check" - there should be descrepancies.  The
descrepancies are found and recorded in resync_mismatches for all RAIDs
<= 3.9 and only for non-RAID10 3.10-rc1+.
I just tried on 3.10-rc5+ and it works as expected.
If you can provide a test script that fails, I'll look into it.
Just tried 3.10 - it fails for me there too.  I'll send you the script I use shortly.

thanks,
brassow

(vacation ends soon.)
:-)

Thanks.  This patch seems to fix it.
Yes, it does.  Thanks!

 brassow
Keyboard shortcuts
hback out one level
jnext message in thread
kprevious message in thread
ldrill in
Escclose help / fold thread tree
?toggle this help