Re: 2.4.21 IDE problems (lost interrupt, bad DMA status)

[joe briggs]

Can anyone tell me what the -ac patches do with respect to this problem?  
Also, what functionality is lost when CONFIG_X86_IO_APIC is not set, and 
should it improve this hd timeout/lost interrupt problem?

Thanks!

On Monday 30 June 2003 06:47 pm, [e-mail] wrote:
> In article <[e-mail]> you write:
> > Hi,
> >
> > After upgrading the kernel from 2.4.20 to 2.4.21, sometimes I see
> > the following messages:
> >
> > hda: dma_timer_expiry: dma status == 0x24
> > hda: lost interrupt
> > hda: dma_intr: bad DMA status (dma_stat=30)
> > hda: dma_intr: status=0x50 { DriveReady SeekComplete }
> >
> > It happens especially when there is a lot of disk I/O (which stops
> > for a few seconds when these messages appear), with three different
> > disks (very unlikely they all decided to die at the same time...),
> > one old ATA33 (QUANTUM FIREBALL SE8.4A) and two newer ATA100 disks
> > (WDC WD300BB-32CCB0, ST340015A).  IDE controller: VIA VT82C686B
> > on a MSI MS-6368L motherboard.
> >
> > I don't remember seeing anything like that in any earlier 2.4.x
> > kernels.  Is this a known problem?  Is this anything dangerous -
> > should I disable UDMA for now to play it safe?
>
> I never saw any corruption when I had it.  I've seen this with stock
> kernels since 2.4.18 or so with ACPI and APIC enabled; with ac kernels
> I never get it (I'm suspecting the old ACPI in the stock kernels is
> the problem).
>
> So my suggestion is either turn off ACPI and/or APIC, or try
> 2.4.21-ac.

-- 
Joe Briggs
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