Re: DMA problems w/ PIIX3 IDE, 2.4.20-pre4-ac2

[Florian Hinzmann]

On 14-Sep-2002 Andre Hedrick wrote:

> Yep I had that problem too and fixed it.
> Please try a newer pre5-acX

Problem is still there with 2.4.20-pre5-ac6:

kernel: hdd: dma_timer_expiry: dma status == 0x60
kernel: hdd: timeout waiting for DMA
kernel: hdd: timeout waiting for DMA
kernel: hdd: (__ide_dma_test_irq) called while not waiting
kernel: hdd: status error: status=0x58 { DriveReady SeekComplete DataRequest }
kernel: 
kernel: hdd: drive not ready for command
kernel: blk: queue c02e50e0, I/O limit 4095Mb (mask 0xffffffff)

No high load (wether cpu or disk io) is needed for this to happen.

In my initial mail I said the machine is running stable with DMA turned off.
This is not true for latest 2.4.20pre5 kernels. When I start one or two bigger 
file copy operations it usually takes less than one minute and I get errors 
like these (running 2.4.20-pre5-ac6 for this output):

kernel: hdb: status timeout: status=0xd0 { Busy }
kernel: 
kernel: hdb: no DRQ after issuing WRITE
kernel: ide0: reset: success
kernel: hdb: read_intr: status=0x59 { DriveReady SeekComplete DataRequest Error }
kernel: hdb: read_intr: error=0x10 { SectorIdNotFound }, LBAsect=97567071, high=5, lo
kernel: hdb: read_intr: status=0x59 { DriveReady SeekComplete DataRequest Error }
kernel: hdb: read_intr: error=0x10 { SectorIdNotFound }, LBAsect=97567071, high=5, lo
kernel: hdb: read_intr: status=0x59 { DriveReady SeekComplete DataRequest Error }
kernel: hdb: read_intr: error=0x10 { SectorIdNotFound }, LBAsect=97567071, high=5, lo
kernel: hdb: read_intr: status=0x59 { DriveReady SeekComplete DataRequest Error }
kernel: hdb: read_intr: error=0x10 { SectorIdNotFound }, LBAsect=97567071, high=5, lo
kernel: ide0: reset: success
kernel: hdb: read_intr: status=0x59 { DriveReady SeekComplete DataRequest Error }
kernel: hdb: read_intr: error=0x10 { SectorIdNotFound }, LBAsect=97567071, high=5, lo
kernel: hdb: read_intr: status=0x59 { DriveReady SeekComplete DataRequest Error }
kernel: hdb: read_intr: error=0x10 { SectorIdNotFound }, LBAsect=97567071, high=5, lo
kernel: hdb: read_intr: status=0x59 { DriveReady SeekComplete DataRequest Error }
kernel: hdb: read_intr: error=0x10 { SectorIdNotFound }, LBAsect=97567071, high=5, lo
kernel: hdb: read_intr: status=0x59 { DriveReady SeekComplete DataRequest Error }
kernel: hdb: read_intr: error=0x10 { SectorIdNotFound }, LBAsect=97567071, high=5, lo
kernel: ide0: reset: success
kernel: hdb: read_intr: status=0x59 { DriveReady SeekComplete DataRequest Error }
kernel: hdb: read_intr: error=0x10 { SectorIdNotFound }, LBAsect=97567071, high=5, lo
kernel: end_request: I/O error, dev 03:41 (hdb), sector 97567008

2.4.20-pre5-ac6 does not work for me with or without DMA. Using 2.4.19 that
machine is running stable with DMA turned off. Would it be interesting to hear
wich 2.4.20-preX-acY kernel was first to break pio mode at my machine?

  Regards
      Florian

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  Florian Hinzmann                         private: [e-mail]
                                            Debian: [e-mail]
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