From mboxrd@z Thu Jan  1 00:00:00 1970
From: Mikhail Balabin <mbalabin@gmail.com>
Subject: Re: polling mdX/md/degraded in sysfs
Date: Tue, 10 Jan 2012 21:19:36 +0600
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To: NeilBrown <neilb@suse.de>, Alexander Lyakas <alex.bolshoy@gmail.com>
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2012/1/9 Mikhail Balabin <mbalabin@gmail.com>:
> 2012/1/9 NeilBrown <neilb@suse.de>:
>> On Sun, 8 Jan 2012 11:06:59 +0200 Alexander Lyakas <alex.bolshoy@gmail.com>
>> wrote:
>>
>>> Hi,
>>> well, at least according to 2.6.38-8 kernel code, this attribute is
>>> notified in 3 cases:
>>> # When the array is started (e.g., via RUN_ARRAY ioctl)
>>> # When "reshape" is initiated via sysfs
>>> # When a spare is activated after successful completion of
>>> resync/recover/check/replair
>>>
>>
>> Hmm... it really should notify when a disk fails.
>>
>> Mikhail: could you please test if this patch makes it work better for you?
>
> Ok, I'll try to test the patch against 3.2 today.
>
>> Thanks,
>> NeilBrown
>
> Mikhail Balabin

The patch have fixed the issue. I suppose it should go to the mainline.

Alexander, Neil, thanks for your efforts.

Mikhail Balabin