2002-09-30 15:50:39

by Felipe Alfaro Solana

[permalink] [raw]
Subject: cdrecord, IDE-SCSI and 2.5.39

Hello,

I have found that cdrecord 1.11a34 has stopped working on linux kernel
2.5.38+. I have a SONY CRX185E3 ATAPI burner and it works fine on 2.4.19
using "hdd=ide-scsi" kernel parameter, but with kernel 2.5.38+, cdrecord
fails when trying to access the "/dev/pg*" device files. When I run cdrecord
-scanbus, it complains with:

cdrecord: No such file or directory. Cannot open '/dev/pg*'. Cannot open
SCSI driver.

I'm logged on as root. SCSI support is enabled as loadable modules (both the
IDE-SCSI and SCSI generic support), as well as IDE CD-ROM. The "sg.o",
"ide-scsi.o" and "scsi_mod.o" modules are loaded and I have used the
"hdd=ide-scsi" kernel parameter. Also, on /var/log/messages, an entry
reports problem locating char-major-97. I have a QDI Platinix P4 Motherboard
with Intel 845 chipset.

Is this a known issue? Also, when running 2.5.38+, why is my computer's box
IDE led activity continuously lit? On 2.4.19, it only lits when there is
disk/CD-ROM activity, but on 2.5.38+ it's kept always lit...

Sincerely,

Felipe Alfaro

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2002-09-30 19:39:57

by Thomas Molina

[permalink] [raw]
Subject: Re: cdrecord, IDE-SCSI and 2.5.39

On Mon, 30 Sep 2002, Felipe Alfaro Solana wrote:

> Hello,
>
> I have found that cdrecord 1.11a34 has stopped working on linux kernel
> 2.5.38+. I have a SONY CRX185E3 ATAPI burner and it works fine on 2.4.19
> using "hdd=ide-scsi" kernel parameter, but with kernel 2.5.38+, cdrecord
> fails when trying to access the "/dev/pg*" device files. When I run cdrecord
> -scanbus, it complains with:
>
> cdrecord: No such file or directory. Cannot open '/dev/pg*'. Cannot open
> SCSI driver.

I'm using the cdrecord included in RedHat 7.3 (1.10) with no problems. My
cd burner is being seen at /dev/scd0

2002-09-30 20:05:16

by Bongani Hlope

[permalink] [raw]
Subject: Re: cdrecord, IDE-SCSI and 2.5.39

On Mon, 2002-09-30 at 21:45, Thomas Molina wrote:
> On Mon, 30 Sep 2002, Felipe Alfaro Solana wrote:
>
> > Hello,
> >
> > I have found that cdrecord 1.11a34 has stopped working on linux kernel
> > 2.5.38+. I have a SONY CRX185E3 ATAPI burner and it works fine on 2.4.19
> > using "hdd=ide-scsi" kernel parameter, but with kernel 2.5.38+, cdrecord
> > fails when trying to access the "/dev/pg*" device files. When I run cdrecord
> > -scanbus, it complains with:
> >
> > cdrecord: No such file or directory. Cannot open '/dev/pg*'. Cannot open
> > SCSI driver.
>
> I'm using the cdrecord included in RedHat 7.3 (1.10) with no problems. My
> cd burner is being seen at /dev/scd0
>

Which kernel are you running? I have compiled ide-scsi support into
2.5.39 and I get an Oops after booting.

2002-09-30 20:38:16

by Felipe Alfaro Solana

[permalink] [raw]
Subject: Re: cdrecord, IDE-SCSI and 2.5.39

I'm using kernel 2.5.39... It seems to boot and work properly, although I
still see some issues (the IDE bus led is always lit). I also tried on
2,5.38 with the same results. I can attach my .config for review, if you
like.

>From: Bongani <[email protected]>
>To: Thomas Molina <[email protected]>
>CC: Felipe Alfaro Solana <[email protected]>,
>[email protected]
>Subject: Re: cdrecord, IDE-SCSI and 2.5.39
>Date: 30 Sep 2002 22:13:46 +0200
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>
>On Mon, 2002-09-30 at 21:45, Thomas Molina wrote:
> > On Mon, 30 Sep 2002, Felipe Alfaro Solana wrote:
> >
> > > Hello,
> > >
> > > I have found that cdrecord 1.11a34 has stopped working on linux kernel
> > > 2.5.38+. I have a SONY CRX185E3 ATAPI burner and it works fine on
>2.4.19
> > > using "hdd=ide-scsi" kernel parameter, but with kernel 2.5.38+,
>cdrecord
> > > fails when trying to access the "/dev/pg*" device files. When I run
>cdrecord
> > > -scanbus, it complains with:
> > >
> > > cdrecord: No such file or directory. Cannot open '/dev/pg*'. Cannot
>open
> > > SCSI driver.
> >
> > I'm using the cdrecord included in RedHat 7.3 (1.10) with no problems.
>My
> > cd burner is being seen at /dev/scd0
> >
>
>Which kernel are you running? I have compiled ide-scsi support into
>2.5.39 and I get an Oops after booting.




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2002-09-30 20:40:20

by Felipe Alfaro Solana

[permalink] [raw]
Subject: Re: cdrecord, IDE-SCSI and 2.5.39

Can you try running "cat /dev/pg0"? Does it work for you?

I think "/dev/scd0" is used for normal CD-ROM access, i.e. mounting a CD,
etc. but I think "/dev/pg0" is the generic interface used for burning CDs,
erasing CD-RWs, etc.

>From: Thomas Molina <[email protected]>
>To: Felipe Alfaro Solana <[email protected]>
>CC: [email protected]
>Subject: Re: cdrecord, IDE-SCSI and 2.5.39
>Date: Mon, 30 Sep 2002 14:45:13 -0500 (CDT)
>MIME-Version: 1.0
>Received: from cpimssmtpa48.msn.com ([207.46.181.112]) by
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>
>On Mon, 30 Sep 2002, Felipe Alfaro Solana wrote:
>
> > Hello,
> >
> > I have found that cdrecord 1.11a34 has stopped working on linux kernel
> > 2.5.38+. I have a SONY CRX185E3 ATAPI burner and it works fine on 2.4.19
> > using "hdd=ide-scsi" kernel parameter, but with kernel 2.5.38+, cdrecord
> > fails when trying to access the "/dev/pg*" device files. When I run
>cdrecord
> > -scanbus, it complains with:
> >
> > cdrecord: No such file or directory. Cannot open '/dev/pg*'. Cannot open
> > SCSI driver.
>
>I'm using the cdrecord included in RedHat 7.3 (1.10) with no problems. My
>cd burner is being seen at /dev/scd0




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2002-10-01 02:35:49

by Thomas Molina

[permalink] [raw]
Subject: Re: cdrecord, IDE-SCSI and 2.5.39

On 30 Sep 2002, Bongani wrote:

> On Mon, 2002-09-30 at 21:45, Thomas Molina wrote:
> > On Mon, 30 Sep 2002, Felipe Alfaro Solana wrote:
> >
> > > Hello,
> > >
> > > I have found that cdrecord 1.11a34 has stopped working on linux kernel
> > > 2.5.38+. I have a SONY CRX185E3 ATAPI burner and it works fine on 2.4.19
> > > using "hdd=ide-scsi" kernel parameter, but with kernel 2.5.38+, cdrecord
> > > fails when trying to access the "/dev/pg*" device files. When I run cdrecord
> > > -scanbus, it complains with:
> > >
> > > cdrecord: No such file or directory. Cannot open '/dev/pg*'. Cannot open
> > > SCSI driver.
> >
> > I'm using the cdrecord included in RedHat 7.3 (1.10) with no problems. My
> > cd burner is being seen at /dev/scd0
> >
>
> Which kernel are you running? I have compiled ide-scsi support into
> 2.5.39 and I get an Oops after booting.
>

I'm using kernel 2.5.39. I've used various flavors of linus' bk tree and
haven't seen any problems. However, upon further review, I can cause oops
on request when rmmod sr_mod or ide-scsi. I'm going to write up a full
report tomorrow, but it is similar to what others have reported. I have
to get up at 0230 in the morning so it's time for bed now.



2002-10-01 02:40:49

by Thomas Molina

[permalink] [raw]
Subject: Re: cdrecord, IDE-SCSI and 2.5.39

On Mon, 30 Sep 2002, Felipe Alfaro Solana wrote:

> Can you try running "cat /dev/pg0"? Does it work for you?
>
> I think "/dev/scd0" is used for normal CD-ROM access, i.e. mounting a CD,
> etc. but I think "/dev/pg0" is the generic interface used for burning CDs,
> erasing CD-RWs, etc.

[[email protected] root]# cat /dev/pg0 > /dev/null
cat: /dev/pg0: No such device
[[email protected] root]# cat /dev/pg1 > /dev/null
cat: /dev/pg1: No such device

It sees it as scd0 or scd1 (scsi cd?). I can read and write to /dev/scd1
(my burner) just fine; that is the device my system has seen for some time
now.

2002-10-01 08:11:26

by Bongani Hlope

[permalink] [raw]
Subject: Re: cdrecord, IDE-SCSI and 2.5.39


> > Which kernel are you running? I have compiled ide-scsi support into
> > 2.5.39 and I get an Oops after booting.
> >
>
> I'm using kernel 2.5.39. I've used various flavors of linus' bk tree and
> haven't seen any problems. However, upon further review, I can cause oops
> on request when rmmod sr_mod or ide-scsi. I'm going to write up a full
> report tomorrow, but it is similar to what others have reported. I have
> to get up at 0230 in the morning so it's time for bed now.

Hi,

Have you tried to build ide-scsi support into the kernel? I will
try to compile the kernel with ide-scsi support as modules and see
how it goes when I get home. I did write down the oops that i get
and posted it on the list. I haven't got any feed back on it yet.

The original post of the Oops is here
http://www.uwsg.iu.edu/hypermail/linux/kernel/0209.3/1493.html

Thanx

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2002-10-01 11:21:19

by Felipe Alfaro Solana

[permalink] [raw]
Subject: Re: cdrecord, IDE-SCSI and 2.5.39

No, I didn't compile the IDE-SCSI support into the kernel... I always
compile SCSI support as loadable modules, and IDE-CD also as a module. Will
have a try to compile into the kernel and see if it crashes.

>Hi,
>
>Have you tried to build ide-scsi support into the kernel? I will
>try to compile the kernel with ide-scsi support as modules and see
>how it goes when I get home. I did write down the oops that i get
>and posted it on the list. I haven't got any feed back on it yet.
>
>The original post of the Oops is here
>http://www.uwsg.iu.edu/hypermail/linux/kernel/0209.3/1493.html
>
>Thanx

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