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

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Date:	Wed, 07 May 2008 18:35:48 +0200
From:	Takashi Iwai <tiwai@...e.de>
To:	Markus Trippelsdorf <markus@...ppelsdorf.de>
Cc:	Jeff Garzik <jeff@...zik.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	linux-ide@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>,
	htejun@...il.com
Subject: Re: [git patches] libata updates - (improve post-reset device	ready test) regression

At Wed, 7 May 2008 16:56:16 +0200,
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

The same problem appears on my machine, too:

libata version 3.00 loaded.
ata_piix 0000:00:1f.2: version 2.12
ACPI: PCI Interrupt 0000:00:1f.2[B] -> GSI 19 (level, low) -> IRQ 19
ata_piix 0000:00:1f.2: MAP [ P0 P2 P1 P3 ]
PCI: Setting latency timer of device 0000:00:1f.2 to 64
scsi0 : ata_piix
scsi1 : ata_piix
ata1: SATA max UDMA/133 cmd 0xe400 ctl 0xe500 bmdma 0xe800 irq 19
ata2: SATA max UDMA/133 cmd 0xe600 ctl 0xe700 bmdma 0xe808 irq 19
ata1.00: ATA-7: HDS728080PLA380, PF2OA60A, max UDMA/133
ata1.00: 160836480 sectors, multi 16: LBA48 NCQ (depth 0/32)
ata1.00: configured for UDMA/133
ata2: link is slow to respond, please be patient (ready=0)
ata2: device not ready (errno=-16), forcing hardreset
ata2: link is slow to respond, please be patient (ready=0)
ata2: SRST failed (errno=-16)
ata2: link is slow to respond, please be patient (ready=0)
ata2: SRST failed (errno=-16)
ata2: link is slow to respond, please be patient (ready=0)
ata2: SRST failed (errno=-16)
ata2: SRST failed (errno=-16)
ata2: reset failed, giving up

Takashi
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