IDE messages at boot

Hello,

At boot, probably while running hdparm to set specific parameters for the IDE disks, I have the following messages :
hda: set_drive_speed_status: status=0x58 { DriveReady SeekComplete DataRequest }
blk: queue c066f31c, I/O limit 4095mb (mask 0xffffffff)
hda: channel busy
hda: dma_timer_expiry: dma status == 0x60
hda: timeout waiting for DMA
hda: timeout waiting for DMA
hda: (__ide_dma_test_irq) called while not waiting
hdb: set_drive_speed_status: status=0xd0 { Busy }
blk: queue c066f648, I/O limit 4095mb (mask 0xffffffff)
hdb: channel busy
hda: dma_timer_expiry: dma status == 0x60
hda: timeout waiting for DMA
hda: timeout waiting for DMA
hda: (__ide_dma_test_irq) called while not waiting

Is this normal ?

Running again the same hdparm command line doesn't result in more messages...

Regards,
Paul