Re: DO NOT USE IT (Re: linux-2.5.3-pre1 and IDE Driver Trouble)

[Andre Hedrick]

That problem is now fixed in 2.5.3-pre1-2 + arch_compatablity.patch

On Fri, 18 Jan 2002, Marc Lehmann wrote:

> On Wed, Jan 16, 2002 at 01:07:46PM -0800, Andre Hedrick <[e-mail]> wrote:
> > 
> > If the driver falls out of DMA, DEADBOX!!!!
> > There is a conflict of BIO and ACB and it is very fatal.
> 
> As a matter of fact, this is not much different to 2.4 behaviour. hdparm
> -d1 on a busy disk kills the machine, with interrupts turned off (tested
> on all my machines (all SMP, btw), with linux-2.4.13-ac7, 2.4.17 and
> 2.4.17+ide-patch), on both my promise, piix and via controllers.
> 
> Also, hdparm -w gives me:
> 
> Jan  7 05:40:47 (none) kernel: bug: kernel timer added twice at c01cc2e9. 
> Jan  7 05:40:54 (none) kernel: ide1: reset: success 
> 
> and then both hdc and hdd are dead, which is only for a short time after
> which the machine freezes (software watchdog doesn't help).
> 
> (under 2.2, using hdparmn on the same hardware was safe, at least with
> respect to hdparm -d1).
> 
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Andre Hedrick
Linux Disk Certification Project                Linux ATA Development