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Date: Mon, 21 Dec 2015 07:25:19 +0500
From: "Artem S. Tashkinov" <t.artem@lycos.com>
To: Ming Lei <tom.leiming@gmail.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
        Kent Overstreet <kent.overstreet@gmail.com>,
        Christoph Hellwig <hch@lst.de>, Ming Lin <ming.l@ssi.samsung.com>,
        Jens Axboe <axboe@fb.com>, "Artem S. Tashkinov" <t.artem@mailcity.com>,
        Steven Whitehouse <swhiteho@redhat.com>, Tejun Heo <tj@kernel.org>,
        IDE-ML <linux-ide@vger.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: IO errors after "block: remove =?UTF-8?Q?bio=5Fget=5Fnr=5Fvec?=
 =?UTF-8?Q?s=28=29=22?=
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On 2015-12-21 07:18, Ming Lei wrote:
> On Mon, Dec 21, 2015 at 9:50 AM, Artem S. Tashkinov wrote:
>>> BTW, I have posted very similar issue in the link:
>>> 
>>> http://marc.info/?l=linux-ide&m=145066119623811&w=2
>>> 
>>> Artem, I noticed from bugzillar that the hardware is i386, just
>>> wondering if PAE is enabled?  If yes, I am more confident
>>> that both the two kinds of report are similar or same.
>>> 
>> 
>> Yes, I'm on i686 with PAE (16GB of RAM here) - it's specifically 
>> mentioned
>> in the corresponding bug report.
> 
> OK, could you dump value of the following files under 
> /sys/block/sdN/queue/ ?
> 
>             max_hw_sectors_kb
>             max_sectors_kb
>             max_segments
>             max_segment_size
> 
> 'sdN' is the faulted disk name.
> 

# cat 
/sys/block/sda/queue/{max_hw_sectors_kb,max_sectors_kb,max_segments,max_segment_size}
32767
32767
168
65536
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