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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: Tuesday, March 16, 2010 - 11:48 pm

On 03/16/2010 06:24 AM, James Bottomley wrote:

This is doubly false.

An MS-DOS partition table can partition at any boundary.  Some OSes 
(like some versions of MS-DOS) needed track alignment because their boot 
loaders did not support crossing track boundaries.

Second, the primary field in the (modern) MS-DOS partition table is an 
LBA field.  The CHS fields are largely historic and useless because of 
the 1024-cylinder limitation, and by only being 24 bits total.

	-hpa
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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)