From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Artem S. Tashkinov" Subject: Re: IO errors after "block: remove =?UTF-8?Q?bio=5Fget=5Fnr=5Fvec?= =?UTF-8?Q?s=28=29=22?= Date: Mon, 21 Dec 2015 06:50:21 +0500 Message-ID: <20aa515947cdc15799f520f904ad99a2@lycos.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from smtprelay0129.b.hostedemail.com ([64.98.42.129]:32981 "EHLO smtprelay.b.hostedemail.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1750847AbbLUBuX (ORCPT ); Sun, 20 Dec 2015 20:50:23 -0500 In-Reply-To: Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Ming Lei Cc: Linus Torvalds , Kent Overstreet , Christoph Hellwig , Ming Lin , Jens Axboe , "Artem S. Tashkinov" , Steven Whitehouse , Tejun Heo , IDE-ML , Linux Kernel Mailing List On 2015-12-21 06:38, Ming Lei wrote: > On Mon, Dec 21, 2015 at 1:51 AM, Linus Torvalds wrote: >> Kent, Jens, Christoph et al, >> please see this bugzilla: >> >> https://bugzilla.kernel.org/show_bug.cgi?id=109661 >> >> where Artem Tashkinov bisected his problems with 4.3 down to commit >> b54ffb73cadc ("block: remove bio_get_nr_vecs()") that you've all >> signed off on. >> >> (Also Tejun - maybe you can see what's up - maybe that error message >> tells you something) >> >> I'm not sure what's up with his machine, the disk doesn't seem to be >> anyuthing particularly unusual, it looks like a 1TB Seagate Barracuda: >> >> ata1.00: ATA-8: ST1000DM003-1CH162, CC44, max UDMA/133 >> >> which doesn't strike me as odd. >> >> Looking at the dmesg, it also looks like it's a pretty normal >> Sandybridge setup with Intel chipset. Artem, can you confirm? The PCI >> ID for the AHCI chip seems to be (INTEL, 0x1c02). >> >> Any ideas? Anybody? > > 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. P.S. I know Linus doesn't condone PAE but I still find it more preferrable than running a mixed environment with almost zero benefit in regard to performance and quite obvious performance regressions related to an increased number of libraries being loaded (i686 + x86_64) and slightly bloated code which sometimes cannot fit in the CPU cache. Call me old fashioned but I won't upgrade to x86_64 until most of the things that I run locally are available for x86_64 and that won't happen any time soon.