lkml.org 
[lkml]   [2001]   [Oct]   [7]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: IDE DMA errors [was: Some ext2 errors]
On Sun, Oct 07, 2001 at 11:39:04PM +0100, Riley Williams wrote:
> Hi Mike.
>

Hey Riley,

> >>> As far as I can tell, it's a problem with the PSU in the computer
> >>> in question, as I can swap ANYTHING else in there, motherboard
> >>> included, without the problem going away on that drive, but as
> >>> soon as I swap the PSU, the problems vanish - even if I put a PSU
> >>> with a lower rating in its place.
>
> > It may not be your MB or drive, but an interaction between them.
> > I.E. Your bios could've told the linux driver to use a higher
> > dma level than the drive likes.
>
> Always possible, but I'd consider it unlikely that using the SAME
> motherboard and drive, but with a different PSU would have any affect
> whatsoever if such was the reason.
>
> I would presume that the old PSU was just too noisy for that
> particular drive, and a new PSU is rather quieter in that regard.
>

But we don't know what is happening with David's system.

To rule out some possible causes David, you should run these tests:
memtest86 (www.memtest86.org
badblocks -s /dev/hda (read only hard drive test, newer versions have a -p
option for safe write mode tests too)

> > Try running "hdparm -d0 /dev/hda" (since your drive is hda in
> > this case...) And see if the problem goes away. If it does, then
> > try Multimode dma, if (-X34) you get errors, try single mode
> > (probably -X31), if you get no errors there, try UDMA mode 2
> > (-X66, also make sure you have a 80 line ide cable) and see if
> > any of the problems come back.
>
> Unfortunately, none of that is relevant in my case...see below...
>

But maybe for david... David, try the tests above with read only badblocks...

> >>>> Yeah. If you can't figure out hdparm, leave it alone.
>
> >>> Who says hdparm has anything to do with it?
>
> >> He says, it seems he has very deep knowledge of hdparm 'secrets'.
>
> > Again, sorry for being presumptuous. I've only been able to cause
> > this with hdparm. Maybe I'm just not using new enough hardware...
>
> The system in question is my network printserver, which has a 386sx/16
> processor and a very definitely 40 line cable with no support for
> anything else. The hard drive is an antique Maxtor 800M one, and I
> have no problem assuring you that it's not possible to buy that model
> new, and hasn't been for some years now...
>

It would probably recognize a 2gb drive, which you could easily raid 1 for
your server, assuming that there are two ide connectors on that old 386 MB.

This just adds another possible test... Buying a new power supply.

David, let us know what you find...

Mike

> Best wishes from Riley.
>
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:04    [W:0.069 / U:1.040 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site