Mailinglist Archive: opensuse (4498 mails)

["Carlos E. R." <robin.listas@xxxxxxxxxxxxxx>]

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The Friday 2006-11-03 at 14:33 +0100, Istvan Gabor wrote:

> Thanks. I read hdparm man several times but it was not clear 
> for me that -d also reports dma status.
> For hdparm -d -c -u /dev/hdd I get:
> 
> /dev/hdd:
>  IO_support   =  0 (default 16-bit)
>  unmaskirq    =  0 (off)
>  using_dma    =  1 (on)

Typical.

> Is this good or bad (for unmaskirq and IO_support)?

If it works for you, it should run faster to enable them. You can try, at 
worst you gain a shiny mug dish :-P


> > Probably. Bu why don't you use k3b instead of a windows in 
> linux thing?
> 
> According to my knowledge neroLINUX is a native linux 
> program.  

I don't use it, haven't even tried, because I heard the contrary, and k3b 
and others work find for me.

> I had several problems with k3b before. 
> Unfortunately there is not a decent GUI cdburning software for 
> linux.  All of them ruins directory dates on burned media. But 
> this would be a different topic.

Well...

> > > 1. What can cause that dma is turned off?
> > 
> > Check the kernel log.
> 
> Is the /var/log/messages file the kernel log? Or dmesg?

Depends. On most installations they go to /var/log/messages, others have a 
separate file.

> I found lines in /var/log/messages like these:
> 
> kernel: hdc: irq timeout: status=0xd0 { Busy }
> kernel: ide: failed opcode was: unknown
> kernel: hdc: DMA disabled

This could be it.

> I don't know which of these report problems and which are 
> normal.

Difficult to say. I have a similar problem, when reading takes longer, or 
the door is open, and dma gets disabled in the process. I didn't have 
that problem before, so now I check the status just before doing a burn 
and enable it if necessary.

> However recently I had also bootup problems.  At certain point 
> boot hangs and I have to reset.  I can't remember the 
> messages at which boot hangs (not always the same) but next 
> time I will write it down.  Couldit be a problem with the MB or 
> bad wiring?

I have no idea at this point.

- -- 
Cheers,
       Carlos E. R.
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