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Message-ID: <4B325D4A.5090304@compro.net>
Date: Wed, 23 Dec 2009 13:11:22 -0500
From: Mark Hounschell <markh@...pro.net>
To: Linus Torvalds <torvalds@...ux-foundation.org>
CC: Andi Kleen <andi@...stfloor.org>,
"Pallipadi, Venkatesh" <venkatesh.pallipadi@...el.com>,
"dmarkh@....rr.com" <dmarkh@....rr.com>,
Alain Knaff <alain@...ff.lu>,
Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
"fdutils@...tils.linux.lu" <fdutils@...tils.linux.lu>,
"Li, Shaohua" <shaohua.li@...el.com>, Ingo Molnar <mingo@...e.hu>
Subject: Re: [Fdutils] DMA cache consistency bug introduced in 2.6.28
On 12/23/2009 01:01 PM, Linus Torvalds wrote:
>
>
> On Wed, 23 Dec 2009, Mark Hounschell wrote:
>>
>> I'll try the patch Linus provided now.
>
> I doubt it matters - because if it did, it would matter for everybody, and
> the HPET thing shouldn't make any difference at all.
>
> [ Or rather, it should matter for everybody trying to format a specific
> format (without interleave it won't matter, and not all formats have any
> interleave - I think it was mainly used on 5.25" floppies and special
> formats). ]
>
> Besides, maybe I was just mis-reading the code.
>
> But getting some testing for the patch certainly won't hurt, so I'm not
> going to argue against it any more ;)
Yea, that hosed it up pretty good. The very first track label sent out
caused some sort of timeout.
Dec 23 13:10:02 harley kernel:
Dec 23 13:10:02 harley kernel: floppy driver state
Dec 23 13:10:02 harley kernel: -------------------
Dec 23 13:10:02 harley kernel: now=9017 last interrupt=8117 diff=900 last
called handler=f73ce27d
Dec 23 13:10:02 harley kernel: timeout_message=lock fdc
Dec 23 13:10:02 harley kernel: last output bytes:
Dec 23 13:10:02 harley kernel: 0 90 4294899106
Dec 23 13:10:02 harley kernel: 1a 90 4294899106
Dec 23 13:10:02 harley kernel: 0 90 4294899106
Dec 23 13:10:02 harley kernel: 3 90 4294899106
Dec 23 13:10:02 harley kernel: c1 90 4294899106
Dec 23 13:10:02 harley kernel: 10 90 4294899106
Dec 23 13:10:02 harley kernel: 7 80 4294899106
Dec 23 13:10:02 harley kernel: 0 90 4294899106
Dec 23 13:10:02 harley kernel: 8 81 4294899106
Dec 23 13:10:02 harley kernel: 4 80 4294899106
Dec 23 13:10:02 harley kernel: 0 90 4294899106
Dec 23 13:10:02 harley kernel: e6 80 8007
Dec 23 13:10:02 harley kernel: 0 90 8007
Dec 23 13:10:02 harley syslog-ng[2651]: last message repeated 2 times
Dec 23 13:10:02 harley kernel: 1 90 8007
Dec 23 13:10:02 harley kernel: 2 90 8007
Dec 23 13:10:02 harley kernel: 12 90 8007
Dec 23 13:10:02 harley kernel: 1b 90 8007
Dec 23 13:10:02 harley kernel: ff 90 8007
Dec 23 13:10:02 harley kernel: last result at 8117
Dec 23 13:10:02 harley kernel: last redo_fd_request at 8117
Dec 23 13:10:02 harley kernel:
Dec 23 13:10:02 harley kernel: status=80
Dec 23 13:10:02 harley kernel: fdc_busy=1
Dec 23 13:10:02 harley kernel: cont=f73d58e4
Dec 23 13:10:02 harley kernel: current_req=(null)
Dec 23 13:10:02 harley kernel: command_status=-1
Dec 23 13:10:02 harley kernel:
Dec 23 13:10:02 harley kernel: floppy0: floppy timeout called
Dec 23 13:10:22 harley kernel:
Dec 23 13:10:22 harley kernel: floppy driver state
Dec 23 13:10:22 harley kernel: -------------------
Dec 23 13:10:22 harley kernel: now=15017 last interrupt=8117 diff=6900 last
called handler=f73ce27d
Dec 23 13:10:22 harley kernel: timeout_message=do wakeup
Dec 23 13:10:22 harley kernel: last output bytes:
Dec 23 13:10:22 harley kernel: 0 90 4294899106
Dec 23 13:10:22 harley kernel: 1a 90 4294899106
Dec 23 13:10:22 harley kernel: 0 90 4294899106
Dec 23 13:10:22 harley kernel: 3 90 4294899106
Dec 23 13:10:22 harley kernel: c1 90 4294899106
Dec 23 13:10:22 harley kernel: 10 90 4294899106
Dec 23 13:10:22 harley kernel: 7 80 4294899106
Dec 23 13:10:22 harley kernel: 0 90 4294899106
Dec 23 13:10:22 harley kernel: 8 81 4294899106
Dec 23 13:10:22 harley kernel: 4 80 4294899106
Dec 23 13:10:22 harley kernel: 0 90 4294899106
Dec 23 13:10:22 harley kernel: e6 80 8007
Dec 23 13:10:22 harley kernel: 0 90 8007
Dec 23 13:10:22 harley syslog-ng[2651]: last message repeated 2 times
Dec 23 13:10:22 harley kernel: 1 90 8007
Dec 23 13:10:22 harley kernel: 2 90 8007
Dec 23 13:10:22 harley kernel: 12 90 8007
Dec 23 13:10:22 harley kernel: 1b 90 8007
Dec 23 13:10:22 harley kernel: ff 90 8007
Dec 23 13:10:22 harley kernel: last result at 8117
Dec 23 13:10:22 harley kernel: last redo_fd_request at 8117
Dec 23 13:10:22 harley kernel:
Dec 23 13:10:22 harley kernel: status=80
Dec 23 13:10:22 harley kernel: fdc_busy=1
Dec 23 13:10:22 harley kernel: floppy_work.func=f73d03da
Dec 23 13:10:22 harley kernel: cont=f73d5274
Dec 23 13:10:22 harley kernel: current_req=(null)
Dec 23 13:10:22 harley kernel: command_status=-1
Dec 23 13:10:22 harley kernel:
Dec 23 13:10:22 harley kernel: floppy0: floppy timeout called
Dec 23 13:10:22 harley kernel: floppy.c: no request in request_don
Have to reboot now...
Mark
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