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    SubjectRe: [Regression] 2.6.25-rc4-git3: Handling of audio CDs broken on pata_ali
    On 03/08/2008 04:46 PM, Rafael J. Wysocki wrote:
    > Hi,
    >
    > On one of my test boxes I'm unable to do just about anything with audio CDs
    > using the current -git (2.6.24 is fine in that respect on the same box).
    >
    > When an audio CD is inserted into the drive, I get the following errors in
    > dmesg and nothing more happens (quite obviously):
    >
    > ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen
    > ata1.00: cmd a0/01:00:00:10:00/00:00:00:00:00/a0 tag 0 dma 16400 in
    > cdb 42 02 40 01 00 00 00 00 10 00 00 00 00 00 00 00
    > res 40/00:00:00:18:00/00:00:00:00:00/a0 Emask 0x4 (timeout)
    > ata1.00: status: { DRDY }
    > ata1: soft resetting link
    > ata1.00: configured for UDMA/33
    > ata1: EH complete
    > ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen
    > ata1.00: cmd a0/01:00:00:10:00/00:00:00:00:00/a0 tag 0 dma 16400 in
    > cdb 42 02 40 01 00 00 00 00 10 00 00 00 00 00 00 00
    > res 40/00:00:00:18:00/00:00:00:00:00/a0 Emask 0x4 (timeout)
    > ata1.00: status: { DRDY }
    > ata1: port is slow to respond, please be patient (Status 0x80)
    > ata1: device not ready (errno=-16), forcing hardreset
    > ata1: soft resetting link
    > ata1.00: qc timeout (cmd 0xa1)
    > ata1.00: failed to IDENTIFY (I/O error, err_mask=0x4)
    > ata1.00: revalidation failed (errno=-5)
    > ata1: failed to recover some devices, retrying in 5 secs
    > ata1: port is slow to respond, please be patient (Status 0x80)
    > ata1: device not ready (errno=-16), forcing hardreset
    > ata1: soft resetting link
    > ata1.00: qc timeout (cmd 0xa1)
    > ata1.00: failed to IDENTIFY (I/O error, err_mask=0x4)
    > ata1.00: revalidation failed (errno=-5)
    > ata1: failed to recover some devices, retrying in 5 secs
    > ata1: port is slow to respond, please be patient (Status 0x80)
    > ata1: device not ready (errno=-16), forcing hardreset
    > ata1: soft resetting link
    > ata1.00: qc timeout (cmd 0xa1)
    > ata1.00: failed to IDENTIFY (I/O error, err_mask=0x4)
    > ata1.00: revalidation failed (errno=-5)
    > ata1.00: disabled
    >

    We still have DMA totally disabled on pata_ali in Fedora.


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