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    SubjectRe: scary messages: HSM violation during boot of 2.6.18/amd64
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    On Fri, 10 Nov 2006 16:12:10 +0100, Tomasz Chmielewski said:

    > > ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen
    > > ata2.00: tag 0 cmd 0xb0 Emask 0x2 stat 0x50 err 0x0 (HSM violation)

    > I saw similar when using smartctl / smartd with wrong options (without
    > -d ata; in short, smartd tried to talk "IDE language" to SATA device...).

    (Foo on me for not chasing this earlier - I've been seeing it ever since I
    started using the libata stuff several months ago - Alan Cox got things fixed
    so I had the ata_piix driver at UDMA/100, and I never followed up on this part)

    [ 21.734165] ata1.00: ATA-6, max UDMA/100, 117210240 sectors: LBA
    [ 21.734171] ata1.00: ata1: dev 0 multi count 8
    [ 21.884789] ata1.01: ATAPI, max UDMA/33
    [ 21.889464] ata1.00: configured for UDMA/100
    [ 22.041527] ata1.01: configured for UDMA/33
    [ 22.041536] scsi1 : ata_piix
    [ 22.192756] scsi 0:0:0:0: Direct-Access ATA FUJITSU MHV2060A 0000 PQ: 0 ANSI:5

    (ata1.01 is a CD)

    when smartd starts up:
    [ 92.567000] ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen
    [ 92.568000] ata1.00: tag 0 cmd 0xb0 Emask 0x2 stat 0x50 err 0x0 (HSM violation)
    [ 92.569000] ata1: soft resetting port
    [ 92.879000] ata1.00: configured for UDMA/100
    [ 93.031000] ata1.01: configured for UDMA/33
    [ 93.031000] ata1: EH complete
    (set of 6 messages repeated 5 more times)
    [ 95.346000] SCSI device sda: 117210240 512-byte hdwr sectors (60012 MB)
    [ 95.348000] sda: Write Protect is off
    [ 95.349000] sda: Mode Sense: 00 3a 00 00
    [ 95.349000] SCSI device sda: drive cache: write back
    [ 95.350000] SCSI device sda: 117210240 512-byte hdwr sectors (60012 MB)
    [ 95.351000] sda: Write Protect is off
    [ 95.352000] sda: Mode Sense: 00 3a 00 00
    [ 95.353000] SCSI device sda: drive cache: write back

    and then the entire set repeats again (6 sets of 6 msgs, then final 8).

    And I *am* passing '-d ata' - /etc/smartd.conf contains:

    /dev/sda -a -d ata -o on -S on -m root -l error -l selftest -s (S/../.././(00|06|12|18)|L/../.././03|O/../.././.[02468])

    (Testing with removing '-d ata' results in smartd saying it can't talk to the
    scsi device at /dev/sda).

    Any ideas/suggestions?
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