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Message-ID: <47842842.9090805@gmail.com>
Date: Wed, 09 Jan 2008 10:49:54 +0900
From: Tejun Heo <htejun@gmail.com>
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To: Maciej Rutecki <maciej.rutecki@gmail.com>
CC: Linus Torvalds <torvalds@linux-foundation.org>,
       Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
       linux-ide@vger.kernel.org
Subject: Re: [Re: Linux 2.6.24-rc7] ata1: exception Emask 0x10 SAct 0x0 SErr
 0x0 action 0x9 t4
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Maciej Rutecki wrote:
> I have this message when resume from suspend to disk:
> 
> hda: host max PIO4 wanted PIO255(auto-tune) selected PIO4
> hda: MWDMA2 mode selected
> sd 0:0:0:0: [sda] Starting disk
> [...]
> ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
> ata1.00: ACPI cmd f5/00:00:00:00:00:a0 filtered out
> ata1.00: ACPI cmd b1/c1:00:00:00:00:a0 filtered out
> ata1.00: ACPI cmd c6/00:10:00:00:00:a0 succeeded
> ata1.00: ACPI cmd ef/10:03:00:00:00:a0 succeeded
> ata1.00: ACPI cmd f5/00:00:00:00:00:a0 filtered out
> ata1.00: ACPI cmd b1/c1:00:00:00:00:a0 filtered out
> ata1.00: ACPI cmd c6/00:10:00:00:00:a0 succeeded
> ata1.00: ACPI cmd ef/10:03:00:00:00:a0 succeeded
> ata1.00: configured for UDMA/133
> ata1: exception Emask 0x10 SAct 0x0 SErr 0x0 action 0x9 t4
> ata1: irq_stat 0x00400040, connection status changed
> ata1.00: configured for UDMA/133
> ata1: EH complete
> sd 0:0:0:0: [sda] 234441648 512-byte hardware sectors (120034 MB)
> sd 0:0:0:0: [sda] Write Protect is off
> sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00
> sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't
> support DPO or FUA
> 
> Suspend to disk works fine without any problems.

Those are newly added ACPI command filtering and KERN_DEBUG messages.
As we're following what BIOS is telling us, we definitely want to filter
and log what rubbish it tells us.  :-)

Thanks.

-- 
tejun