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Subject2.4.0-test8 locks up Aladdin V IDE

I'm running 2.4.0-test9 on an Aladdin V based mother board. The IDE
interface locks up (i.e. reads/writes etc fail, drives cannot be
detected when booting) and only works again after power cycling. Same
problem occured with 2.4.0-test5 and up. The problem does not occur with
2.2.x kernels (2.2.14 and 2.2.17 tested) with the 1.0 beta 3 driver.

The primary interface has two UDMA33 drives (both of which are
automatically put into UDMA33 mode). The secondary interface has a CD-ROM
drive and a Zip disk but neither are used.

Unfortunatly I have been unable to determine what particular circumstaces
cause the problem as it occurs infrequently (maybe after a few
hours). This first signs are the following messages

hda: timeout waiting for DMA
ide_dmaproc: chipset supported ide_dma_timeout func only: 14
hda: irq timeout: status=0x58 { DriveReady SeekComplete DataRequest }
hda: status timeout: status=0xd0 { Busy }
hda: DMA disabled
hdb: DMA disabled
hda: drive not ready for command
ide0: reset timed-out, status=0x80
hda: status timeout: status=0x80 { Busy }
...and so on...

The problem appears t only occur if I have not previously booted Windows

lspci reports the IDE interface as
Acer Labs M5229 IDE interface (revision c1)

I'm not subscribed to this list please CC any replies.

David Vrabel

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