2.4.19 ATAPI cdrom I/O errors when reading CD-R
Hello.
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I'm getting errors with kernel 2.4.19 when reading a data CD-R burnt under Windows (using Adaptec DirectCD). Kernel 2.2.20 reads the same CD with no problems, as does Windows XP.
Could you please try to read the same CD-R with kernel 2.4.18? If you still can't read the CD, try with kernel 2.4.17, and so on back to 2.2.20, so we have a chance to find the change causing the problem. (Be careful to skip problematic kernels, 2.4.15 and 2.4.11 come to mind.)
(Note also that a dicotomic search may be more efficient. I let you decide.)
Signature · 1 line
Jean Delvare
Quoted 6 lines · Jean Delvare
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Could you please try to read the same CD-R with kernel 2.4.18? If you still can't read the CD, try with kernel 2.4.17, and so on back to 2.2.20, so we have a chance to find the change causing the problem. (Be careful to skip problematic kernels, 2.4.15 and 2.4.11 come to mind.)
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This is a joke, isn't it?
cu
Adrian
Signature · 3 lines
You only think this is a free country. Like the US the UK spends a lot of time explaining its a free country because its a police state. Alan Cox
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Quoted 6 lines
Could you please try to read the same CD-R with kernel 2.4.18? If you still can't read the CD, try with kernel 2.4.17, and so on back to 2.2.20, so we have a chance to find the change causing the problem. (Be careful to skip problematic kernels, 2.4.15 and 2.4.11 come to mind.)
This is a joke, isn't it?
Hm no, wasn't. I couldn't see another solution. Seems a bit hard to reproduce on another system, since it must be related to the specific hardware (drive, writer and CD-R) used.
What would you suggest?
Signature · 2 lines
Jean "Khali" Delvare http://www.ensicaen.ismra.fr/~delvare/
Quoted 11 lines · Jean Delvare
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Could you please try to read the same CD-R with kernel 2.4.18? If you still can't read the CD, try with kernel 2.4.17, and so on back to 2.2.20, so we have a chance to find the change causing the problem. (Be careful to skip problematic kernels, 2.4.15 and 2.4.11 come to mind.)
This is a joke, isn't it?
Hm no, wasn't. I couldn't see another solution. Seems a bit hard to reproduce on another system, since it must be related to the specific hardware (drive, writer and CD-R) used.
The way you suggested to check for the first kernel version that was broken works if you want to find the exact version when something breaks e.g. between -pre3 and -pre6. Between two major releases of Linux there are
1. too many releases and
2. the development kernels might be broken in _many_ different ways which would make it hard to find the version where the current breakage occured first; and not to forget
3. it costs much time to compile try let's say 40 different kernels (not to mention that each of them has its' unique bugs)
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What would you suggest?
Someone with a better knowledge of ATAPI might be able to understand what the error messages say and to either understand the problem or to tell how to trace it down.
cu
Adrian
Signature · 3 lines
You only think this is a free country. Like the US the UK spends a lot of time explaining its a free country because its a police state. Alan Cox