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Re: ATA 4 KiB sector issues.

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From: H. Peter Anvin
Subject: Re: ATA 4 KiB sector issues.
Date: Monday, March 15, 2010 - 7:47 am

On 03/15/2010 02:56 AM, Denys Vlasenko wrote:

Yes, but guess what... there is a lot of stupid firmware out there, and
there are lots of RAID arrays, and so on.

"Seriously fragmented" means you have already lost in the first place.

This doesn't change the fact that this is a real issue and that that is
the major reason why aligning to 63*4K is a bad idea.

	-hpa

-- 
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel.  I don't speak on their behalf.

--
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Messages in current thread:
ATA 4 KiB sector issues., Tejun Heo, (Sun Mar 7, 8:48 pm)
Re: ATA 4 KiB sector issues., Greg Freemyer, (Sun Mar 7, 10:38 pm)
Re: ATA 4 KiB sector issues., James Bottomley, (Mon Mar 8, 12:00 am)
Re: ATA 4 KiB sector issues., H. Peter Anvin, (Mon Mar 8, 12:53 am)
Re: ATA 4 KiB sector issues., H. Peter Anvin, (Mon Mar 8, 12:56 am)
Re: ATA 4 KiB sector issues., Martin K. Petersen, (Mon Mar 8, 8:18 am)
Re: ATA 4 KiB sector issues., Martin K. Petersen, (Mon Mar 8, 8:33 am)
Re: ATA 4 KiB sector issues., Martin K. Petersen, (Mon Mar 8, 8:34 am)
Re: ATA 4 KiB sector issues., Martin K. Petersen, (Mon Mar 8, 8:38 am)
Re: ATA 4 KiB sector issues., Martin K. Petersen, (Mon Mar 8, 8:41 am)
Re: ATA 4 KiB sector issues., H. Peter Anvin, (Mon Mar 8, 11:29 am)
Re: ATA 4 KiB sector issues., H. Peter Anvin, (Mon Mar 8, 11:50 am)
Re: ATA 4 KiB sector issues., James Bottomley, (Mon Mar 8, 11:58 am)
Re: ATA 4 KiB sector issues., H. Peter Anvin, (Mon Mar 8, 12:11 pm)
Re: ATA 4 KiB sector issues., Mike Snitzer, (Mon Mar 8, 12:34 pm)
Re: ATA 4 KiB sector issues., Karel Zak, (Mon Mar 8, 12:58 pm)
Re: ATA 4 KiB sector issues., Martin K. Petersen, (Mon Mar 8, 1:01 pm)
Re: ATA 4 KiB sector issues., =?UTF-8?B?Q2zDoXVkaW ..., (Mon Mar 8, 1:02 pm)
Re: ATA 4 KiB sector issues., H. Peter Anvin, (Mon Mar 8, 1:12 pm)
Re: ATA 4 KiB sector issues., Martin K. Petersen, (Mon Mar 8, 1:19 pm)
Re: ATA 4 KiB sector issues., Martin K. Petersen, (Mon Mar 8, 2:07 pm)
Re: ATA 4 KiB sector issues., H. Peter Anvin, (Mon Mar 8, 2:16 pm)
Re: ATA 4 KiB sector issues., Tejun Heo, (Mon Mar 8, 7:22 pm)
Re: ATA 4 KiB sector issues., Tejun Heo, (Mon Mar 8, 7:34 pm)
Re: ATA 4 KiB sector issues., Jeff Garzik, (Mon Mar 8, 7:42 pm)
Re: ATA 4 KiB sector issues., Tejun Heo, (Mon Mar 8, 7:42 pm)
Re: ATA 4 KiB sector issues., Tejun Heo, (Mon Mar 8, 7:44 pm)
Re: ATA 4 KiB sector issues., Tejun Heo, (Mon Mar 8, 7:49 pm)
Re: ATA 4 KiB sector issues., Tejun Heo, (Mon Mar 8, 7:53 pm)
Re: ATA 4 KiB sector issues., Martin K. Petersen, (Mon Mar 8, 8:09 pm)
Re: ATA 4 KiB sector issues., Martin K. Petersen, (Mon Mar 8, 8:11 pm)
Re: ATA 4 KiB sector issues., Martin K. Petersen, (Mon Mar 8, 8:18 pm)
Re: ATA 4 KiB sector issues., Martin K. Petersen, (Mon Mar 8, 8:20 pm)
RE: ATA 4 KiB sector issues., Daniel Taylor, (Mon Mar 8, 8:38 pm)
Re: ATA 4 KiB sector issues., Martin K. Petersen, (Mon Mar 8, 9:54 pm)
Re: ATA 4 KiB sector issues., Mikael Abrahamsson, (Mon Mar 8, 11:34 pm)
Re: ATA 4 KiB sector issues., Michael Tokarev, (Mon Mar 8, 11:53 pm)
Re: ATA 4 KiB sector issues., Jim Meyering, (Tue Mar 9, 12:27 am)
Re: ATA 4 KiB sector issues., Karel Zak, (Tue Mar 9, 3:01 am)
Re: ATA 4 KiB sector issues., Michal Soltys, (Tue Mar 9, 3:06 am)
Re: ATA 4 KiB sector issues., Michael Tokarev, (Tue Mar 9, 3:16 am)
Re: ATA 4 KiB sector issues., Dave Chinner, (Tue Mar 9, 4:15 am)
Re: ATA 4 KiB sector issues., Michael Tokarev, (Tue Mar 9, 4:38 am)
Re: ATA 4 KiB sector issues., Karel Zak, (Tue Mar 9, 4:50 am)
Re: ATA 4 KiB sector issues., Karel Zak, (Tue Mar 9, 5:18 am)
Re: ATA 4 KiB sector issues., Dave Chinner, (Tue Mar 9, 5:20 am)
Re: ATA 4 KiB sector issues., Mark Lord, (Tue Mar 9, 6:55 am)
Re: ATA 4 KiB sector issues., Mark Lord, (Tue Mar 9, 7:32 am)
RE: ATA 4 KiB sector issues., Daniel Taylor, (Tue Mar 9, 3:36 pm)
Re: ATA 4 KiB sector issues., Greg Freemyer, (Tue Mar 9, 3:46 pm)
Re: ATA 4 KiB sector issues., Arnd Bergmann, (Tue Mar 9, 4:46 pm)
Re: ATA 4 KiB sector issues., Tejun Heo, (Tue Mar 9, 4:56 pm)
Re: ATA 4 KiB sector issues., Tejun Heo, (Tue Mar 9, 5:00 pm)
Re: ATA 4 KiB sector issues., Tejun Heo, (Tue Mar 9, 5:05 pm)
Re: ATA 4 KiB sector issues., Tejun Heo, (Tue Mar 9, 5:11 pm)
RE: ATA 4 KiB sector issues., Daniel Taylor, (Tue Mar 9, 5:14 pm)
Re: ATA 4 KiB sector issues., Tejun Heo, (Tue Mar 9, 5:20 pm)
Re: ATA 4 KiB sector issues., Tejun Heo, (Tue Mar 9, 5:26 pm)
Re: ATA 4 KiB sector issues., H. Peter Anvin, (Tue Mar 9, 5:32 pm)
Re: ATA 4 KiB sector issues., Tejun Heo, (Tue Mar 9, 5:34 pm)
Re: ATA 4 KiB sector issues., H. Peter Anvin, (Tue Mar 9, 5:36 pm)
Re: ATA 4 KiB sector issues., Martin K. Petersen, (Tue Mar 9, 9:57 pm)
Re: ATA 4 KiB sector issues., Martin K. Petersen, (Tue Mar 9, 10:06 pm)
Re: ATA 4 KiB sector issues., H. Peter Anvin, (Tue Mar 9, 10:17 pm)
Re: ATA 4 KiB sector issues., Mark Lord, (Tue Mar 9, 11:08 pm)
Re: ATA 4 KiB sector issues., Gabor Gombas, (Wed Mar 10, 12:09 am)
Re: ATA 4 KiB sector issues., Matthew Wilcox, (Wed Mar 10, 12:53 am)
Re: ATA 4 KiB sector issues., Denys Vlasenko, (Wed Mar 10, 2:14 am)
Re: ATA 4 KiB sector issues., Johannes Stezenbach, (Wed Mar 10, 3:46 am)
Re: ATA 4 KiB sector issues., H. Peter Anvin, (Wed Mar 10, 4:22 am)
Re: ATA 4 KiB sector issues., Jeff Garzik, (Wed Mar 10, 6:47 am)
Re: ATA 4 KiB sector issues., Damian Lukowski, (Wed Mar 10, 9:19 am)
Re: ATA 4 KiB sector issues., Henrique de Moraes H ..., (Wed Mar 10, 1:50 pm)
Re: ATA 4 KiB sector issues., Theodore Tso, (Thu Mar 11, 6:04 am)
Re: ATA 4 KiB sector issues., Nikanth Karthikesan, (Thu Mar 11, 6:57 am)
Re: ATA 4 KiB sector issues., Theodore Tso, (Thu Mar 11, 7:28 am)
Re: ATA 4 KiB sector issues., James Bottomley, (Thu Mar 11, 7:39 am)
Re: ATA 4 KiB sector issues., Mike Snitzer, (Thu Mar 11, 7:48 am)
Re: ATA 4 KiB sector issues., Nikanth Karthikesan, (Thu Mar 11, 8:00 am)
Re: ATA 4 KiB sector issues., Nikanth Karthikesan, (Thu Mar 11, 8:05 am)
Re: ATA 4 KiB sector issues., Tejun Heo, (Thu Mar 11, 8:10 am)
Re: ATA 4 KiB sector issues., tytso, (Thu Mar 11, 8:25 am)
Re: ATA 4 KiB sector issues., Mike Snitzer, (Thu Mar 11, 9:01 am)
Re: ATA 4 KiB sector issues., Gene Heskett, (Thu Mar 11, 9:26 am)
Re: ATA 4 KiB sector issues., H. Peter Anvin, (Thu Mar 11, 9:33 am)
Re: ATA 4 KiB sector issues., Greg Freemyer, (Thu Mar 11, 9:34 am)
Re: ATA 4 KiB sector issues., Christoph Hellwig, (Thu Mar 11, 11:26 am)
Re: ATA 4 KiB sector issues., Tejun Heo, (Thu Mar 11, 6:09 pm)
Re: ATA 4 KiB sector issues., Michal Soltys, (Sun Mar 14, 2:09 pm)
Re: ATA 4 KiB sector issues., s ponnusa, (Sun Mar 14, 3:56 pm)
Re: ATA 4 KiB sector issues., H. Peter Anvin, (Sun Mar 14, 6:21 pm)
Re: ATA 4 KiB sector issues., Denys Vlasenko, (Sun Mar 14, 7:26 pm)
Re: ATA 4 KiB sector issues., Greg Freemyer, (Sun Mar 14, 7:56 pm)
Re: ATA 4 KiB sector issues., H. Peter Anvin, (Sun Mar 14, 9:00 pm)
Re: ATA 4 KiB sector issues., david, (Sun Mar 14, 10:20 pm)
Re: ATA 4 KiB sector issues., Denys Vlasenko, (Mon Mar 15, 2:56 am)
Re: ATA 4 KiB sector issues., Arnd Bergmann, (Mon Mar 15, 5:30 am)
Re: ATA 4 KiB sector issues., H. Peter Anvin, (Mon Mar 15, 7:47 am)
Re: ATA 4 KiB sector issues., Tejun Heo, (Mon Mar 15, 7:30 pm)
Re: ATA 4 KiB sector issues., Tejun Heo, (Mon Mar 15, 7:32 pm)
Re: ATA 4 KiB sector issues., James Bottomley, (Mon Mar 15, 11:14 pm)
Re: ATA 4 KiB sector issues., Tejun Heo, (Mon Mar 15, 11:22 pm)
Re: ATA 4 KiB sector issues., Thomas Chou, (Mon Mar 15, 11:27 pm)
Re: ATA 4 KiB sector issues., James Bottomley, (Tue Mar 16, 6:24 am)
Re: ATA 4 KiB sector issues., Tejun Heo, (Tue Mar 16, 6:56 am)
Re: ATA 4 KiB sector issues., James Bottomley, (Tue Mar 16, 7:21 am)
Re: ATA 4 KiB sector issues., Arnd Bergmann, (Tue Mar 16, 7:25 am)
Re: ATA 4 KiB sector issues., Denys Vlasenko, (Tue Mar 16, 7:38 am)
Re: ATA 4 KiB sector issues., Tejun Heo, (Tue Mar 16, 7:50 am)
Re: ATA 4 KiB sector issues., James Bottomley, (Tue Mar 16, 8:02 am)
Re: ATA 4 KiB sector issues., Tejun Heo, (Tue Mar 16, 8:12 am)
Re: ATA 4 KiB sector issues., Tejun Heo, (Tue Mar 16, 8:20 am)
Re: ATA 4 KiB sector issues., Martin K. Petersen, (Tue Mar 16, 8:22 am)
Re: ATA 4 KiB sector issues., James Bottomley, (Tue Mar 16, 8:23 am)
Re: ATA 4 KiB sector issues., Denys Vlasenko, (Tue Mar 16, 8:25 am)
Re: ATA 4 KiB sector issues., Tejun Heo, (Tue Mar 16, 8:37 am)
Re: ATA 4 KiB sector issues., Tejun Heo, (Tue Mar 16, 8:47 am)
Re: ATA 4 KiB sector issues., Ric Wheeler, (Tue Mar 16, 1:42 pm)
Re: ATA 4 KiB sector issues., Tejun Heo, (Tue Mar 16, 7:04 pm)
Re: ATA 4 KiB sector issues., Tejun Heo, (Tue Mar 16, 7:07 pm)
Re: ATA 4 KiB sector issues., H. Peter Anvin, (Tue Mar 16, 11:48 pm)
Re: ATA 4 KiB sector issues., Bill Davidsen, (Wed Mar 17, 10:04 am)