Re: 2.5.8 IDE oops (TCQ breakage?)

[Martin Dalecki <dalecki@evision-ventures.com>]

Jens Axboe wrote:
> On Wed, Apr 17 2002, Jens Axboe wrote:
> 
>>On Wed, Apr 17 2002, Martin Dalecki wrote:
>>
>>>Mikael Pettersson wrote:
>>>
>>>>I have a 486 box which ran 2.5.7 fine, but 2.5.8 oopses during
>>>>boot at the BUG_ON() in drivers/ide/ide-disk.c, line 360:
>>>>
>>>>	if (drive->using_tcq) {
>>>>		int tag = ide_get_tag(drive);
>>>>
>>>>		BUG_ON(drive->tcq->active_tag != -1);
>>>
>>>OK it could be that the tca goesn't get allocated if there
>>>was no chipset selected. Lets have a look...
>>
>>Add a drive->using_dma check to ide_dma_queued_on in ide-tcq.c, it needs
>>to look like this:
>>
>>ide_tcq_dmaproc()
>>{
>>
>>	...
>>
>>		case ide_dma_queued_off:
>>			enable_tcq = 0;
>>		case ide_dma_queued_on:
>>			if (!drive->using_dma)
>>				return 1;
>>			return ide_enable_queued(drive, enable_tcq);
>>		default:
>>			break;
>>	}
>>
>>that should fix it.

Yes I see. However for now I will just concentrate on ide-cd.c and
await you to merge up with IDE 37 OK? (It should be easy this time :-).