Plextor-Linux-DMA-problems (was cdrtools-2.01a19 - strange errors)
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 -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
Plextor-Linux-DMA-problems (was cdrtools-2.01a19 - strange errors)
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
Re: Plextor-Linux-DMA-problems (was cdrtools-2.01a19 - strange errors)
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 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 -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
Re: Plextor-Linux-DMA-problems (was cdrtools-2.01a19 - strange errors)
>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 J"org Schilling URL: http://www.fokus.fraunhofer.de/usr/schilling ftp://ftp.berlios.de/pub/schily -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
Re: Plextor-Linux-DMA-problems (was cdrtools-2.01a19 - strange errors)
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 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
Re: Plextor-Linux-DMA-problems (was cdrtools-2.01a19 - strange errors)
>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 J"org Schilling URL: http://www.fokus.fraunhofer.de/usr/schilling ftp://ftp.berlios.de/pub/schily
