linux-kernel - Re: IO errors after "block: remove bio_get_nr

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Message-ID: <CACVXFVN28gMALtnVUKBa_S0votmcnBprqVpkWVN+9dbNCLOs4g@mail.gmail.com>
Date:	Mon, 21 Dec 2015 10:18:43 +0800
From:	Ming Lei <tom.leiming@...il.com>
To:	"Artem S. Tashkinov" <t.artem@...os.com>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Kent Overstreet <kent.overstreet@...il.com>,
	Christoph Hellwig <hch@....de>,
	Ming Lin <ming.l@....samsung.com>, Jens Axboe <axboe@...com>,
	"Artem S. Tashkinov" <t.artem@...lcity.com>,
	Steven Whitehouse <swhiteho@...hat.com>,
	Tejun Heo <tj@...nel.org>, IDE-ML <linux-ide@...r.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: IO errors after "block: remove bio_get_nr_vecs()"

On Mon, Dec 21, 2015 at 9:50 AM, Artem S. Tashkinov <t.artem@...os.com> 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.

Thanks,
Ming Lei
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