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SubjectRE: lost interrupt / kernel 2.2.16 + ide.2_2_16_all_20000722.patch
Date
> I use the 2.2.16 Kernel with one HD (now IBM DTLA307030 30,7GB HD) on primary HDC 
> and an ordinary IDE-CD-ROM on secondary HDC;
> DMA is disabled and Enhanced IDE is compiled into kernel...
> After a short time the kernel display the message
> hda: lost interrupt
> and after a reboot the disk isn't accessible (the pc has to be switched off!);
> When i use an IBM DJNA-352500 (25GB) everything is fine, so i think there could be a big
> problem in handling large disks... (no matter if i use LBA or Normal in BIOS!)
> The same problem came up with a WD 307AA (30,7 GB, too!), so i think we can't blame the disks!
>

I found out that the larger drives use Ultra DMA 66 (WDC) / Ultra DMA 100(IBM); this could be the
problem in ATA-IDE-code; As i think this is a problem now for many harddisks in kernel 2.2.x up and
i'm sure this one keeps 2.4.x from being running on these drives as well...
The specification of WDC says that the Ultra DMA 66 can only be switched off by BIOS (so we have to do
this in linux, AFAIK...)
Good Luck!

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