linux-kernel - Re: [PATCH] Re: [git patches] libata updates - (improve post-reset device ready test) regression

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Message-id: <482375F8.2090108@gmail.com>
Date:	Thu, 08 May 2008 17:51:52 -0400
From:	Marc Dionne <marc.c.dionne@...il.com>
To:	Jeff Garzik <jeff@...zik.org>
Cc:	Markus Trippelsdorf <markus@...ppelsdorf.de>,
	linux-ide@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	LKML <linux-kernel@...r.kernel.org>, htejun@...il.com,
	Takashi Iwai <tiwai@...e.de>, dl9pf@....de,
	bug-track@...her-privat.net, sitsofe@...oo.com
Subject: Re: [PATCH] Re: [git patches] libata updates - (improve post-reset
 device ready test) regression

08/05/08 11:35 AM, Jeff Garzik:
> Markus Trippelsdorf wrote:
>>> Tejun Heo (12):
>>>       libata: improve post-reset device ready test
>>
>> This commit (78ab88f04f44bed566d51dce0c7cbfeff6449a06) causes a long
>> boot delay with my onboard Promise controller. It seems like libata
>> probes for a nonexisting PATA drive...
>>
>> ACPI: PCI Interrupt 0000:00:08.0[A] -> GSI 18 (level, low) -> IRQ 18
>> scsi0 : sata_promise
>> scsi1 : sata_promise
>> scsi2 : sata_promise
>> ata1: SATA max UDMA/133 mmio m4096@...b600000 port 0xfb600200 irq 18
>> ata2: SATA max UDMA/133 mmio m4096@...b600000 port 0xfb600280 irq 18
>> ata3: PATA max UDMA/133 mmio m4096@...b600000 port 0xfb600300 irq 18
>> ata1: SATA link down (SStatus 0 SControl 300)
>> ata2: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
>> ata2.00: ATA-7: SAMSUNG HD753LJ, 1AA01109, max UDMA7
>> ata2.00: 1465149168 sectors, multi 0: LBA48 NCQ (depth 0/32)
>> ata2.00: configured for 
>> UDMA/133                                                                                          
>> ata3: link is slow to respond, please be patient (ready=0)
>> ata3: device not ready (errno=-16), forcing hardreset
>> ata3: link is slow to respond, please be patient (ready=0)
>> ata3: SRST failed (errno=-16)
>> ata3: link is slow to respond, please be patient (ready=0)
>> ata3: SRST failed (errno=-16)
>> ata3: link is slow to respond, please be patient (ready=0)
>> ata3: SRST failed (errno=-16)
>>   - Last output repeated twice -
>> ata3: reset failed, giving up
> 
> Does the attached patch fix things?
> 
> It basically reverts the patch, while still maintaining the 
> consolidation.  It looks like that status evaluation is not as universal 
> as believed.
> 
>     Jeff

Yes, with the patch I get normal booting behaviour.

Thanks,
Marc
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