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    SubjectRe: [BUG 2.6.21-rc3-git9] SATA NCQ failure with Samsum HD401LJ
    Christian wrote:
    > On Sunday 18 March 2007 06:43:09 you wrote:
    >> Christian wrote:
    >>>> This does indeed look like a drive side issue to me (the controller is
    >>>> reporting CPBs with response flags 2 which as far as I can tell
    >>>> indicates it's still waiting for the drive to complete the request).
    >>> I have been using this hw-config (SATA II, NCQ) since the nvidia ADMA
    >>> support made it in the -mm kernel (maybe around 2.6.19-mm? or even
    >>> earlyer). I'm seeing this problem excessively since I upgraded to
    >>> 2.6.21-rc3-mm1. I think something got broken recently...
    >> Can you post the result of "hdparm -I /dev/sdX"?
    >
    > Output generated on 2.6.21-rc3-mm1 #3 SMP PREEMPT
    >
    > user@ubuntu:~$ sudo hdparm -I /dev/sda
    >
    > /dev/sda:
    >
    > ATA device, with non-removable media
    > Model Number: SAMSUNG HD401LJ
    > Serial Number: S0HVJ1FL900207
    > Firmware Revision: ZZ100-15
    > Standards:
    > Used: ATA/ATAPI-7 T13 1532D revision 4a
    > Supported: 7 6 5 4
    > Configuration:
    > Logical max current
    > cylinders 16383 16383
    > heads 16 16
    > sectors/track 63 63
    > --
    > CHS current addressable sectors: 16514064
    > LBA user addressable sectors: 268435455
    > LBA48 user addressable sectors: 781422768
    > device size with M = 1024*1024: 381554 MBytes
    > device size with M = 1000*1000: 400088 MBytes (400 GB)

    That's a fairly recent drive. Does the problem go away if you downgrade
    the kernel?

    --
    tejun
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