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From: "Kevin P. Fleming" <kpfleming@backtobasicsmgmt.com>
To: Nathan Scott <nathans@sgi.com>
Cc: "Linus Torvalds" <torvalds@osdl.org>,
	"Jens Axboe" <axboe@suse.de>,
	"David Martínez Moreno" <ender@debian.org>,
	"Kernel Mailing List" <linux-kernel@vger.kernel.org>,
	clubinfo.servers@adi.uam.es, "Ingo Molnar" <mingo@elte.hu>,
	"Neil Brown" <neilb@cse.unsw.edu.au>
Subject: Re: Errors and later panics in 2.6.0-test11.
Date: Thu, 04 Dec 2003 20:49:08 -0700	[thread overview]
Message-ID: <3FD00034.1000006@backtobasicsmgmt.com> (raw)
In-Reply-To: <20031205032023.GB1693@frodo>

Nathan Scott wrote:

>>The problem I reported was also with RAID-5, and I have also found a 
>>problem similar to Nathan's (probably the same one) by just trying to 
>>run bonnie++ on an XFS filesystem on DM over RAID-5, even after 
>>formatting the XFS filesystem to forcibly align everything to RAID-5 
>>stripes (64K units).
> 
> 
> FWIW, this doesn't align _everything_ (space allocations done
> through the XFS allocator are influenced, which means "most")
> -- log IO is still going to be sector aligned, as are any IOs
> to the four XFS allocation group header metadata structures.

OK, I thought that "-l sunit=..." being set to a block-size multiple 
would take care of that as well, but apparently not.


  reply	other threads:[~2003-12-05  3:49 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-12-03 13:17 Errors and later panics in 2.6.0-test11 David Martínez Moreno
2003-12-03 13:31 ` William Lee Irwin III
2003-12-03 16:49   ` David Martínez Moreno
2003-12-03 15:59 ` Linus Torvalds
2003-12-03 16:20   ` Jens Axboe
2003-12-03 16:26     ` Jens Axboe
2003-12-03 16:51     ` Linus Torvalds
2003-12-03 17:25       ` Kevin P. Fleming
2003-12-05  3:20         ` Nathan Scott
2003-12-05  3:49           ` Kevin P. Fleming [this message]
2003-12-03 20:09       ` Neil Brown
2003-12-04  6:39         ` Nathan Scott
2003-12-03 20:04     ` Neil Brown
2003-12-03 20:11       ` Linus Torvalds
2003-12-03 16:47   ` David Martínez Moreno
2003-12-03 17:25     ` Linus Torvalds
2003-12-04 12:43       ` Jens Axboe
2003-12-04 14:07         ` Jens Axboe
2003-12-04 14:14           ` Jens Axboe
2003-12-05  3:07           ` Neil Brown
2003-12-05  4:31             ` Kevin P. Fleming
2003-12-05  4:32             ` Nathan Scott
2003-12-04 12:53       ` David Martínez Moreno
2003-12-12 18:38       ` David Martínez Moreno

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