DMA timeouts with 2.4.22-pre6

From: John Wong (kernel@implode.net)
Date: Sat Jul 19 2003 - 10:07:29 EST


I am having dma timeouts with my Maxtor 6Y120P0. It is connected as the
slave on the primary channel of the nVidia nForce2 based Asus A7N8X DX.

I did not have this problem with 2.4.21. On the 2.4.22-pre series, I
have encountered this problem in pre4, pre5, and pre6. I did not try
earlier pre's. In the pre2 -> pre3 change log, there was a mention of
fix ide dma timeout bugs. I am wondering if this fix is causing my newly
experienced problems.

gambit:/root# hdparm /dev/hdb

/dev/hdb:
 multcount = 16 (on)
 IO_support = 1 (32-bit)
 unmaskirq = 1 (on)
 using_dma = 1 (on)
 keepsettings = 0 (off)
 readonly = 0 (off)
 readahead = 8 (on)
 geometry = 14946/255/63, sectors = 240121728, start = 0

Jul 11 18:59:26 gambit kernel: hdb: dma_intr: status=0x51 { DriveReady
SeekComplete Error }
Jul 11 18:59:26 gambit kernel: hdb: dma_intr: error=0x40 {
UncorrectableError }, LBAsect=98468, sector=98405
Jul 11 18:59:26 gambit kernel: end_request: I/O error, dev 03:41 (hdb),
sector 98405
Jul 11 18:59:36 gambit kernel: hdb: dma_intr: status=0x51 { DriveReady
SeekComplete Error }
Jul 11 18:59:36 gambit kernel: hdb: dma_intr: error=0x40 {
UncorrectableError }, LBAsect=98470, sector=98407
Jul 11 18:59:36 gambit kernel: end_request: I/O error, dev 03:41 (hdb),
sector 98407
Jul 11 18:59:42 gambit kernel: hdb: dma_intr: status=0x51 { DriveReady
SeekComplete Error }
Jul 11 18:59:42 gambit kernel: hdb: dma_intr: error=0x40 {
UncorrectableError }, LBAsect=98471, sector=98408
Jul 11 18:59:42 gambit kernel: end_request: I/O error, dev 03:41 (hdb),
sector 98408

John
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