Re: Plextor-Linux-DMA-problems (was cdrtools-2.01a19 - strange errors)

2003-11-27 Thread Joerg Schilling

From [EMAIL PROTECTED]  Wed Nov 26 12:55:59 2003

 His problems are caused by the fact that he did not read README.verify
 and README.copy.
 

Probably it isn't cdrecord's fault since a
readcd -c2scan
shows a perfect CD.
Now I have disabled DMA for the Plextor drive and now these errors
have gone. So it must be related to Plextor+Linux+DMA .
On my private PC at home (a newer Plextor  48x) I cannot access
the drive at all when DMA is enabled (even a simple 'mount' of an
ISO filesystem hangs) and the kernel log tells about a DMA timeout
error. (The kernel is a recent 2.4.23-rc?)

Sou you most likely use a Motherboard with a VIA KT133A chipset.



Jörg

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Re: Plextor-Linux-DMA-problems (was cdrtools-2.01a19 - strange errors)

2003-11-27 Thread Joerg Schilling

From [EMAIL PROTECTED]  Wed Nov 26 12:55:59 2003

 His problems are caused by the fact that he did not read README.verify
 and README.copy.
 

Probably it isn't cdrecord's fault since a
readcd -c2scan
shows a perfect CD.
Now I have disabled DMA for the Plextor drive and now these errors
have gone. So it must be related to Plextor+Linux+DMA .
On my private PC at home (a newer Plextor  48x) I cannot access
the drive at all when DMA is enabled (even a simple 'mount' of an
ISO filesystem hangs) and the kernel log tells about a DMA timeout
error. (The kernel is a recent 2.4.23-rc?)

Sou you most likely use a Motherboard with a VIA KT133A chipset.



Jörg

-- 
 EMail:[EMAIL PROTECTED] (home) Jörg Schilling D-13353 Berlin
   [EMAIL PROTECTED](uni)  If you don't have iso-8859-1
   [EMAIL PROTECTED](work) chars I am Jorg Schilling
 URL:  http://www.fokus.fraunhofer.de/usr/schilling 
ftp://ftp.berlios.de/pub/schily



Plextor-Linux-DMA-problems (was cdrtools-2.01a19 - strange errors)

2003-11-26 Thread Helmut Jarausch
On 13 Nov, Joerg Schilling wrote:
From: Lourens Veen [EMAIL PROTECTED]
 
On Wed 12 November 2003 11:33, Helmut Jarausch wrote:

 I can't remember the version, but I'm quite sure it was a 2.01a*
 version.
 I'll try to use the driver under Win2K first, to check if it's a
 hardware problem.
 
Okay. How do you compare the CD to the original? Read it out with 
readcd and then do a cmp on the images? Or using cmp on the device 
directly?
 
 His problems are caused by the fact that he did not read README.verify
 and README.copy.
 

Probably it isn't cdrecord's fault since a
readcd -c2scan
shows a perfect CD.
Now I have disabled DMA for the Plextor drive and now these errors
have gone. So it must be related to Plextor+Linux+DMA .
On my private PC at home (a newer Plextor  48x) I cannot access
the drive at all when DMA is enabled (even a simple 'mount' of an
ISO filesystem hangs) and the kernel log tells about a DMA timeout
error. (The kernel is a recent 2.4.23-rc?)

Has anybody made similar experience and/or knows what to do?
Is this a case for the Linux kernel mailing list?

Thanks for any hints (except abandoning Linux)

Helmut Jarausch

Lehrstuhl fuer Numerische Mathematik
RWTH - Aachen University
D 52056 Aachen, Germany


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Re: Plextor-Linux-DMA-problems (was cdrtools-2.01a19 - strange errors)

2003-11-26 Thread Norbert Preining
On Mit, 26 Nov 2003, Helmut Jarausch wrote:
 have gone. So it must be related to Plextor+Linux+DMA .
 On my private PC at home (a newer Plextor  48x) I cannot access
 the drive at all when DMA is enabled (even a simple 'mount' of an
 ISO filesystem hangs) and the kernel log tells about a DMA timeout
 error. (The kernel is a recent 2.4.23-rc?)

I have linux-2.4.23-rc5 and more or less all the previous kernels back
to know what and a plextor premium 48x and have no problems, with or
without dma.

I guess that you have a problem with
* either your chipset (is it via, nforce, or what)
* or your cables (too long, too twisted)

I would suggest first:
* put the burner as single master and look if it is the same
* put it on another ide controller

It may be that the plextor drive is damaged and cannot do dma.

Best wishes

Norbert

---
Norbert Preining preining AT logic DOT at Technische Universität Wien
gpg DSA: 0x09C5B094  fp: 14DF 2E6C 0307 BE6D AD76  A9C0 D2BF 4AA3 09C5 B094
---
POTT SHRIGLEY (n.)
Dried remains of a week-old casserole, eaten when extremely drunk at
two a.m.
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Re: Plextor-Linux-DMA-problems (was cdrtools-2.01a19 - strange errors)

2003-11-26 Thread Norbert Preining
On Mit, 26 Nov 2003, Helmut Jarausch wrote:
 have gone. So it must be related to Plextor+Linux+DMA .
 On my private PC at home (a newer Plextor  48x) I cannot access
 the drive at all when DMA is enabled (even a simple 'mount' of an
 ISO filesystem hangs) and the kernel log tells about a DMA timeout
 error. (The kernel is a recent 2.4.23-rc?)

I have linux-2.4.23-rc5 and more or less all the previous kernels back
to know what and a plextor premium 48x and have no problems, with or
without dma.

I guess that you have a problem with
* either your chipset (is it via, nforce, or what)
* or your cables (too long, too twisted)

I would suggest first:
* put the burner as single master and look if it is the same
* put it on another ide controller

It may be that the plextor drive is damaged and cannot do dma.

Best wishes

Norbert

---
Norbert Preining preining AT logic DOT at Technische Universität Wien
gpg DSA: 0x09C5B094  fp: 14DF 2E6C 0307 BE6D AD76  A9C0 D2BF 4AA3 09C5 B094
---
POTT SHRIGLEY (n.)
Dried remains of a week-old casserole, eaten when extremely drunk at
two a.m.
--- Douglas Adams, The Meaning of Liff



Plextor-Linux-DMA-problems (was cdrtools-2.01a19 - strange errors)

2003-11-26 Thread Helmut Jarausch
On 13 Nov, Joerg Schilling wrote:
From: Lourens Veen [EMAIL PROTECTED]
 
On Wed 12 November 2003 11:33, Helmut Jarausch wrote:

 I can't remember the version, but I'm quite sure it was a 2.01a*
 version.
 I'll try to use the driver under Win2K first, to check if it's a
 hardware problem.
 
Okay. How do you compare the CD to the original? Read it out with 
readcd and then do a cmp on the images? Or using cmp on the device 
directly?
 
 His problems are caused by the fact that he did not read README.verify
 and README.copy.
 

Probably it isn't cdrecord's fault since a
readcd -c2scan
shows a perfect CD.
Now I have disabled DMA for the Plextor drive and now these errors
have gone. So it must be related to Plextor+Linux+DMA .
On my private PC at home (a newer Plextor  48x) I cannot access
the drive at all when DMA is enabled (even a simple 'mount' of an
ISO filesystem hangs) and the kernel log tells about a DMA timeout
error. (The kernel is a recent 2.4.23-rc?)

Has anybody made similar experience and/or knows what to do?
Is this a case for the Linux kernel mailing list?

Thanks for any hints (except abandoning Linux)

Helmut Jarausch

Lehrstuhl fuer Numerische Mathematik
RWTH - Aachen University
D 52056 Aachen, Germany