linux-kernel - Re: [BUG] 2.6.24 refuses to boot

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Date:	Sun, 03 Feb 2008 12:36:33 -0500
From:	Jeff Garzik <jeff@...zik.org>
To:	Daniel Hazelton <dhazelton@...er.net>
CC:	Chris Rankin <rankincj@...oo.com>, linux-kernel@...r.kernel.org
Subject: Re: [BUG] 2.6.24 refuses to boot - ATA problem?

Daniel Hazelton wrote:
> On Saturday 02 February 2008 18:40:55 Chris Rankin wrote:
>> Hi,
>>
>> I have tried to boot a 2.6.24 kernel on my 1 GHz Coppermine / 512 MB RAM
>> PC. (This is without the nmi_watchdog=1 option.) However, the ATA layer is
>> failing to initialise:
>>
> <snip>
>> Driver 'sd' needs updating - please use bus_type methods
>> scsi0 : ata_piix
>> scsi1 : ata_piix
>> ata1: PATA max UDMA/100 cmd 0x1f0 ctl 0x3f6 bmdma 0xa800 irq 14
>> ata2: PATA max UDMA/100 cmd 0x170 ctl 0x376 bmdma 0xa808 irq 15
>> ata1.00: ATA-4: ST320420A, 3.12, max UDMA/66
>> ata1.00: 39851760 sectors, multi 16: LBA
>> ata1.00: configured for UDMA/66
>> ata2.00: ATAPI: Pioneer DVD-ROM ATAPIModel DVD-116  0122, E1.22, max
>> UDMA/66 ata2.01: ATAPI: SONY    CD-RW  CRX145E, 1.0b, max UDMA/33
>> ata2.00: configured for UDMA/66
>> ata2.01: configured for UDMA/33
>> scsi 0:0:0:0: Direct-Access     ATA      ST320420A        3.12 PQ: 0 ANSI:
>> 5 sd 0:0:0:0: [sda] 39851760 512-byte hardware sectors (20404 MB)
>> sd 0:0:0:0: [sda] Write Protect is off
>> sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't
>> support DPO or FUA sd 0:0:0:0: [sda] 39851760 512-byte hardware sectors
>> (20404 MB)
>> sd 0:0:0:0: [sda] Write Protect is off
>> sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't
>> support DPO or FUA sda:<4>ehci_hcd 0000:03:0d.2: Unlink after no-IRQ? 
>> Controller is probably using the wrong IRQ. ata1.00: exception Emask 0x0
>> SAct 0x0 SErr 0x0 action 0x2 frozen
>> ata1.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in
>>          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
>> ata1.00: status: { DRDY }
>> ata1: soft resetting link
>> ata1.00: configured for UDMA/66
>> ata1: EH complete
>> ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen
>> ata1.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in
>>          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
>> ata1.00: status: { DRDY }
>> ata1: soft resetting link
>> ata1.00: configured for UDMA/66
>> ata1: EH complete
>> SysRq : Emergency Sync
>> Emergency Sync complete
>> SysRq : Emergency Remount R/O
>> Emergency Remount complete
>> SysRq : Resetting
> 
> This error is what I mentioned in a post yesterday that mentioned several 
> errors I've seen with a recent kernel built from linus' git.
> 
> The only difference is that here the kernel starts at UDMA/133 and devolves 
> all the way down to PIO0 before spinning forever at that. A fully "cold" boot 
> (ie: removing all power from the system for a period of several minutes and 
> then powering it back on) seems to fix this problem.
> 
> I've got a kernel here built from git b036555adc but I haven't tested it yet. 
> If the problem still occurs with it, I'll try to get a copy of the output 
> posted here. 

If its reproducible, please bisect...  That will tell us precisely the 
problematic change.

	Jeff



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