Re: [bug] ata subsystem related crash with latest -git

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To: Mark Lord <lkml@...>
Cc: David Miller <davem@...>, <fujita.tomonori@...>, <jens.axboe@...>, <mingo@...>, <linux-kernel@...>, <jgarzik@...>, <alan@...>, <tomof@...>
Date: Thursday, October 18, 2007 - 12:45 am

On Thu, 18 Oct 2007, Mark Lord wrote:

Ok, I think your picture cut off the last hex digits on the right, but 
what I can make out of the disassembly, I have to admit that it looks 
very much like it might be exactly the same thing Ingo was seeing.

The disassembly is a bit scrambled, but the particular instruction that 
oopses for you is

	mov    0x10(%ebx),%eax

and the instructions around it do seem to bear some similarity to the 
whole "sg_next()" thing, ie I see a 

	test   $0x1,%al

and a

	lea    0x10(%ebx),%eax

around there too.

If you cut down the number of entries printed for the call trace (which 
involves editing the source code, no nice config options, I'm afraid), you 
could get the rest of it..

		Linus
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Messages in current thread:
[bug] block subsystem related crash with latest -git, Ingo Molnar, (Wed Oct 17, 11:46 am)
Re: [bug] block subsystem related crash with latest -git, Linus Torvalds, (Wed Oct 17, 12:50 pm)
Re: [bug] block subsystem related crash with latest -git, Linus Torvalds, (Wed Oct 17, 1:52 pm)
Re: [bug] block subsystem related crash with latest -git, Linus Torvalds, (Wed Oct 17, 2:18 pm)
Re: [bug] block subsystem related crash with latest -git, Linus Torvalds, (Wed Oct 17, 2:22 pm)
Re: [bug] block subsystem related crash with latest -git, Linus Torvalds, (Wed Oct 17, 1:56 pm)
Re: [bug] block subsystem related crash with latest -git, Linus Torvalds, (Wed Oct 17, 2:14 pm)
Re: [bug] block subsystem related crash with latest -git, Linus Torvalds, (Wed Oct 17, 2:13 pm)
Re: [bug] block subsystem related crash with latest -git, Linus Torvalds, (Wed Oct 17, 2:58 pm)
Re: [bug] block subsystem related crash with latest -git, Linus Torvalds, (Wed Oct 17, 3:15 pm)
Re: [bug] block subsystem related crash with latest -git, Luca Tettamanti, (Wed Oct 17, 4:15 pm)
[bug] ata subsystem related crash with latest -git, Ingo Molnar, (Wed Oct 17, 1:45 pm)
Re: [bug] ata subsystem related crash with latest -git, Linus Torvalds, (Wed Oct 17, 2:08 pm)
Re: [bug] ata subsystem related crash with latest -git, Ingo Molnar, (Wed Oct 17, 2:13 pm)
Re: [bug] ata subsystem related crash with latest -git, Ingo Molnar, (Wed Oct 17, 3:09 pm)
Re: [bug] ata subsystem related crash with latest -git, Linus Torvalds, (Wed Oct 17, 3:28 pm)
Re: [bug] ata subsystem related crash with latest -git, Linus Torvalds, (Wed Oct 17, 3:42 pm)
Re: [bug] ata subsystem related crash with latest -git, Linus Torvalds, (Wed Oct 17, 3:45 pm)
Re: [bug] ata subsystem related crash with latest -git, Linus Torvalds, (Wed Oct 17, 4:24 pm)
Re: [bug] ata subsystem related crash with latest -git, Linus Torvalds, (Wed Oct 17, 5:11 pm)
Re: [bug] ata subsystem related crash with latest -git, FUJITA Tomonori, (Wed Oct 17, 7:00 pm)
Re: [bug] ata subsystem related crash with latest -git, Linus Torvalds, (Wed Oct 17, 9:07 pm)
Re: [bug] ata subsystem related crash with latest -git, Jeff Garzik, (Wed Oct 17, 9:14 pm)
Re: [bug] ata subsystem related crash with latest -git, David Miller, (Wed Oct 17, 9:19 pm)
Re: [bug] ata subsystem related crash with latest -git, Linus Torvalds, (Wed Oct 17, 9:36 pm)
Re: [bug] ata subsystem related crash with latest -git, Linus Torvalds, (Thu Oct 18, 12:01 am)
Re: [bug] ata subsystem related crash with latest -git, Jeff Garzik, (Thu Oct 18, 1:45 am)
Re: [bug] ata subsystem related crash with latest -git, Jeff Garzik, (Thu Oct 18, 3:30 am)
Re: [bug] ata subsystem related crash with latest -git, Linus Torvalds, (Thu Oct 18, 12:20 am)
Re: [bug] ata subsystem related crash with latest -git, Linus Torvalds, (Thu Oct 18, 12:45 am)
Re: [bug] ata subsystem related crash with latest -git, Jeff Garzik, (Thu Oct 18, 12:31 am)
Re: [bug] ata subsystem related crash with latest -git, Linus Torvalds, (Thu Oct 18, 12:53 am)
Re: [bug] ata subsystem related crash with latest -git, Jens Axboe, (Thu Oct 18, 10:04 am)
Re: [bug] ata subsystem related crash with latest -git, Jeff Garzik, (Thu Oct 18, 12:14 am)
Re: [bug] ata subsystem related crash with latest -git, David Miller, (Wed Oct 17, 9:49 pm)
Re: [bug] ata subsystem related crash with latest -git, Linus Torvalds, (Thu Oct 18, 12:55 pm)
Re: [bug] ata subsystem related crash with latest -git, Jeff Garzik, (Thu Oct 18, 3:20 pm)
Re: [bug] ata subsystem related crash with latest -git, Arjan van de Ven, (Thu Oct 18, 1:10 pm)
Re: [bug] ata subsystem related crash with latest -git, FUJITA Tomonori, (Fri Oct 19, 4:59 am)
Re: [bug] ata subsystem related crash with latest -git, David Miller, (Thu Oct 18, 7:55 am)
Re: [bug] ata subsystem related crash with latest -git, David Miller, (Thu Oct 18, 8:05 am)
Re: [bug] ata subsystem related crash with latest -git, Jens Axboe, (Thu Oct 18, 10:14 am)
Re: [bug] ata subsystem related crash with latest -git, Benny Halevy, (Thu Oct 18, 9:49 am)
Re: [bug] ata subsystem related crash with latest -git, Benny Halevy, (Thu Oct 18, 8:58 am)
Re: [bug] ata subsystem related crash with latest -git, Jens Axboe, (Thu Oct 18, 10:05 am)
Re: [bug] ata subsystem related crash with latest -git, Benny Halevy, (Thu Oct 18, 10:16 am)
Re: [bug] ata subsystem related crash with latest -git, Jens Axboe, (Thu Oct 18, 10:38 am)
Re: [bug] ata subsystem related crash with latest -git, Olof Johansson, (Thu Oct 18, 10:58 am)
Re: [bug] ata subsystem related crash with latest -git, Jens Axboe, (Thu Oct 18, 11:25 am)
Re: [bug] ata subsystem related crash with latest -git, David Miller, (Thu Oct 18, 8:36 am)
Re: [bug] ata subsystem related crash with latest -git, Ingo Molnar, (Wed Oct 17, 4:51 pm)
Re: [bug] ata subsystem related crash with latest -git, Ingo Molnar, (Thu Oct 18, 3:07 am)
Re: [bug] ata subsystem related crash with latest -git, Jeff Garzik, (Thu Oct 18, 4:22 am)
Re: [bug] ata subsystem related crash with latest -git, Torsten Kaiser, (Sat Oct 20, 7:55 am)
Re: [bug] ata subsystem related crash with latest -git, Jeff Garzik, (Thu Oct 18, 5:01 am)
Re: [bug] ata subsystem related crash with latest -git, Jeff Garzik, (Thu Oct 18, 5:32 am)
Re: [bug] ata subsystem related crash with latest -git, Jeff Garzik, (Thu Oct 18, 6:04 am)
Re: [bug] ata subsystem related crash with latest -git, Ingo Molnar, (Thu Oct 18, 6:13 am)
Re: [bug] ata subsystem related crash with latest -git, Ingo Molnar, (Thu Oct 18, 6:49 am)
Re: [bug] ata subsystem related crash with latest -git, Jeff Garzik, (Thu Oct 18, 6:50 am)
Re: [bug] ata subsystem related crash with latest -git, Jeff Garzik, (Thu Oct 18, 4:38 am)
Re: [bug] ata subsystem related crash with latest -git, Jeff Garzik, (Thu Oct 18, 4:51 am)
Re: [bug] ata subsystem related crash with latest -git, Ingo Molnar, (Thu Oct 18, 7:03 am)
Re: [bug] ata subsystem related crash with latest -git, Linus Torvalds, (Wed Oct 17, 4:10 pm)
Re: [bug] ata subsystem related crash with latest -git, Ingo Molnar, (Wed Oct 17, 4:05 pm)
Re: [bug] ata subsystem related crash with latest -git, Ingo Molnar, (Wed Oct 17, 3:04 pm)
Re: [bug] ata subsystem related crash with latest -git, Ingo Molnar, (Wed Oct 17, 3:14 pm)
Re: [bug] ata subsystem related crash with latest -git, Ingo Molnar, (Wed Oct 17, 3:17 pm)
Re: [bug] ata subsystem related crash with latest -git, Ingo Molnar, (Wed Oct 17, 1:58 pm)