Here's the relevant output of dmesg after a boot which failed to set the
dma flag on /dev/hda. All other settings on hda and all settings on hdb
were applied correctly.
[17179608.932000] hda: dma_timer_expiry: dma status == 0x60
[17179608.932000] hda: DMA timeout retry
[17179608.932000] hda: timeout waiting for DMA
[17179608.932000] hdb: status error: status=0x58 { DriveReady SeekComplete
DataRequest }
[17179608.932000] ide: failed opcode was: 0xe7
[17179608.932000] hdb: drive not ready for command
[17179609.132000] hdb: status error: status=0x58 { DriveReady SeekComplete
DataRequest }
[17179609.132000] ide: failed opcode was: unknown
[17179609.132000] hdb: drive not ready for command
[17179609.140000] hdb: status error: status=0x7f { DriveReady DeviceFault
SeekComplete DataRequest CorrectedError Index Error }
[17179609.140000] hdb: status error: error=0x7f { DriveStatusError
UncorrectableError SectorIdNotFound TrackZeroNotFound AddrMarkNotFound },
LBAsect=260013951, sector=0
[17179609.140000] ide: failed opcode was: 0xe7
[17179609.140000] hdb: drive not ready for command
[17179609.140000] hdb: wcache flush failed!
[17179609.148000] hdb: status error: status=0x7f { DriveReady DeviceFault
SeekComplete DataRequest CorrectedError Index Error }
[17179609.148000] hdb: status error: error=0x7f { DriveStatusError
UncorrectableError SectorIdNotFound TrackZeroNotFound AddrMarkNotFound },
LBAsect=260013951, sector=0
[17179609.148000] ide: failed opcode was: unknown
[17179609.148000] hdb: drive not ready for command
[17179609.168000] hda: dma_intr: status=0x58 { DriveReady SeekComplete
DataRequest }
[17179609.168000] ide: failed opcode was: unknown
[17179614.176000] hda: status timeout: status=0xd0 { Busy }
[17179614.176000] ide: failed opcode was: unknown
[17179614.176000] hda: DMA disabled
[17179614.176000] hdb: DMA disabled
[17179614.176000] hda: drive not ready for command
[17179614.176000] hdb: set_drive_speed_status: status=0x58 { DriveReady
SeekComplete DataRequest }
[17179614.176000] ide: failed opcode was: unknown
[17179614.224000] ide0: reset: success
For rerefence, here are my /etc/hdparm.conf settings:
/dev/cdrom {
dma = on
}
/dev/hda {
mult_sect_io = 16
io32_support = 3
dma = on
}
/dev/hdb {
mult_sect_io = 16
io32_support = 3
dma = on
}
--
hdparm apparently not run during boot
https://launchpad.net/bugs/46414
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