linux-kernel - Re: [BUG 2.6.38.8] Bisected to commit 5fb46ae7b8c51b05a12c6a66108e8d398c20ee09

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Date:	Thu, 7 Jul 2011 00:43:45 -0400
From:	Gene Heskett <gene.heskett@...il.com>
To:	Knut Petersen <Knut_Petersen@...nline.de>,
	Knut Petersen <Knut_Petersen@...nline.de>
Cc:	Greg KH <gregkh@...e.de>, axboe@...nel.dk, kay.sievers@...y.org,
	"David S. Miller" <davem@...emloft.net>, linux-ide@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [BUG 2.6.38.8] Bisected to commit 5fb46ae7b8c51b05a12c6a66108e8d398c20ee09

On Thursday, July 07, 2011, Knut Petersen wrote:
>Am 07.07.2011 02:33, schrieb Greg KH:
>> On Mon, Jul 04, 2011 at 03:06:40PM +0200, Knut Petersen wrote:
>>> Hi everybody!
>>> 
>>> An openSuse 11.2 system reliably refused to boot properly with kernel
>>> 2.6.38.8 although the prior 2.6.38.y kernels worked fine.  After a
>>> few seconds booting stopped. Several <ctrl-c> did help, but a lot of
>>> services were not started properly, only the root partition was
>>> available. Nothing unusual could be found in the kernel messages.
>>> 
>>> I bisected the problem to commit
>>> 5fb46ae7b8c51b05a12c6a66108e8d398c20ee09.
>>> 
>>> That gave me the idea to disconnect the Plextor PX-755A dvd drive  and
>>> to try 2.6.38.8 again. It booted without problem.
>> 
>> Does the 2.6.39.2 kernel work properly for you?
>
>Yes.  Kernel 2.6.38[,1,2,3,4,5,6,7] 2.6.39[1,2] 3.0-git are ok, only
>2.6.38.8 is broken in the way described above.
>
>cu,
> knut

FWIW guys, running a Texstar built 2.6.38.8-pae-bfs kernel here, but my dvd 
writer, which works, is (from messages at last boot)
scsi 4:0:0:0: CD-ROM ATAPI iHAS324 A BL1D PQ: 0 ANSI: 5

Assigned to /dev/sr0.

And I cannot duplicate this.  My problems are shutdown/reboot related, it 
"turning off swap"
"-f" on the next line, and it is hung till I tap the hardware reset button.

In your case I'd suspect something in the Plextor that could be as simple 
as a dusty led/ir combo that detects the disk.  But dvd writers have become 
so cheap they are hardly worth pulling the covers off to check.

Cheers, gene
-- 
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