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SubjectRe: [2.6.28-rc] Sata soft reset filling log
Andrew Morton wrote:
> (cc linux-ide).
>
> This is a post-2.6.27 regression. Panic!
>
> On Fri, 12 Dec 2008 18:07:49 -0800 Justin Madru <bevicm@dslextreme.com> wrote:
>
>> I've been testing .28 (currently -rc8) and I've noticed in the logs a
>> massive amount of the following.
>> I can confirm that the messages doesn't appear when booting into a .27
>> kernel.
>>
>> ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen
>> ata2.00: ST_FIRST: !(DRQ|ERR|DF)
>> ata2.00: cmd a0/00:00:00:00:00/00:00:00:00:00/a0 tag 0
>> cdb 1e 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>> res 50/00:01:00:00:00/00:00:00:00:00/a0 Emask 0x2 (HSM violation)
>> ata2.00: status: { DRDY }
>> ata2: soft resetting link
>> ata2.00: configured for UDMA/33
>> ata2: EH complete
>>
>> I get this block of messages about every 20 seconds for as long as I'm
>> booted into a .28 kernel.
>> It seems that the sata link is being soft reseted about every _20_ secs.
>> My drive is a sata drive that should be using UDMA/133 (right?),
>> but the "error" message says configuring for UDMA/33.
>> Does this mean that my drive is running at a slower speed?
>> Should I be worried about the .28 kernel corrupting my hardware? Is this
>> a known issue?
>> How can I stop it from filling my logs!
>>
>> Some information about my computer:
>>
>> $ lspci
>> 00:00.0 Host bridge: Intel Corporation Mobile 945GM/PM/GMS, 943/940GML
>> and 945GT Express Memory Controller Hub (rev 03)
>> 00:02.0 VGA compatible controller: Intel Corporation Mobile 945GM/GMS,
>> 943/940GML Express Integrated Graphics Controller (rev 03)
>> 00:02.1 Display controller: Intel Corporation Mobile 945GM/GMS/GME,
>> 943/940GML Express Integrated Graphics Controller (rev 03)
>> 00:1b.0 Audio device: Intel Corporation 82801G (ICH7 Family) High
>> Definition Audio Controller (rev 01)
>> 00:1c.0 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express
>> Port 1 (rev 01)
>> 00:1c.3 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express
>> Port 4 (rev 01)
>> 00:1d.0 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI
>> Controller #1 (rev 01)
>> 00:1d.1 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI
>> Controller #2 (rev 01)
>> 00:1d.2 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI
>> Controller #3 (rev 01)
>> 00:1d.3 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI
>> Controller #4 (rev 01)
>> 00:1d.7 USB Controller: Intel Corporation 82801G (ICH7 Family) USB2 EHCI
>> Controller (rev 01)
>> 00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev e1)
>> 00:1f.0 ISA bridge: Intel Corporation 82801GBM (ICH7-M) LPC Interface
>> Bridge (rev 01)
>> 00:1f.2 IDE interface: Intel Corporation 82801GBM/GHM (ICH7 Family) SATA
>> IDE Controller (rev 01)
>> 00:1f.3 SMBus: Intel Corporation 82801G (ICH7 Family) SMBus Controller
>> (rev 01)
>> 03:00.0 Ethernet controller: Broadcom Corporation BCM4401-B0 100Base-TX
>> (rev 02)

What driver in use? ata_piix? Can you give full dmesg (boot + first
few errors)?

Are there any ATAPI devices attached to this controller, in addition to
the Seagate ST980811AS ?

Jeff






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