Sometimes cdrecord, mistakenly lists my cd burn device

[Giova84]

With the newer version of cdrecord ( ​http://ports-space.haiku-files.org/app-cdr/cdrtools-3.01a07-x86-gcc2-2012-07-19-r2.zip ) finally i can see and use my cd burner. Is listed as "ATAPI ' 'DVD A DH16A6S ' 'YA17' Removable CD-ROM" but sometimes - this happens randomly - cdrecord lists my device as a "FAKE DEVICE" or something similar (now, for example is correctly listed), and in this case, due to the fact that i cannot write nothing on cd/dvd, i have to reboot Haiku to solve this issue.

[diver]

Please attach your syslog with both correctly and incorrectly cd burner listed.

[Giova84]

Correct: ATAPI ' 'DVD A DH16A6S ' 'YA17' Incorrect: 'ADAPTEC ' 'ACB-5500 ' 'FAKE' NON CCS Disk And i have just one cd/dvd burner device on my system.

Syslog attached.

[Giova84]

This happens since two weeks, when cdrtools-3.01a07-x86-gcc2-2012-07-19-hrev2.zip was released.

[phoudoin]

Seems like the SCSI inquiry command can failed on your device, and in such case the AHCI or cdrecord don't detect it's a failure and instead fall into fake/incomplete inquiry replies, which leads to cdrecord to think it's a FAKE device.

The root issue, as shown in syslog, is why the AHCI inquiry command fails and why this information is not detected by cdrecord scg lib...

[Giova84]

Hi Phoudoin,

do you think that there is a way to solve this issue?

[Giova84]

Haiku R1 Alpha 4: this bug is still present.

[Giova84]

I forget to say that cdrecord has another issue, so i have opened another ticket: https://dev.haiku-os.org/ticket/9201

[Giova84]

Still present for me in hrev46464 This issue was also reported by Kallisti in https://dev.haiku-os.org/ticket/9201#comment:6

[vidrep]

This ticket appears to have been resolved with the update to cdrtools 3.01a30. Giova84 could you please verify this before they close the ticket?

[vidrep]

Are you still experiencing this issue with the latest cdrtools (3.02a06)?

[Giova84]

Hi, sorry for the very long report.

As I've said in my first message, this issue occurs randomly: I've tried few minutes ago and for now my device is correctly reported; however when I launch

cdrecord -checkdrive

I get some warning message (at the end of the following output):

Cdrecord-ProDVD-ProBD-Clone 3.02a06 (i586-pc-haiku) Copyright (C) 1995-2016 Joerg Schilling
Using libscg version 'schily-0.9'.
No target specified, trying to find one...
Using dev=0,3,0.
Device type    : Removable CD-ROM
Version        : 2
Response Format: 2
Capabilities   : 
Vendor_info    : 'ATAPI   '
Identifikation : 'DVD A  DH16A6S  '
Revision       : 'YA17'
Device seems to be: Generic mmc2 DVD-R/DVD-RW/DVD-RAM.
Using generic SCSI-3/mmc   CD-R/CD-RW driver (mmc_cdr).
Driver flags   : MMC-3 SWABAUDIO BURNFREE FORCESPEED 
Supported modes: TAO PACKET SAO SAO/R96P SAO/R96R RAW/R16 RAW/R96P RAW/R96R LAYER_JUMP
cdrecord: Warning: Cannot read drive buffer.
cdrecord: Warning: The DMA speed test has been skipped.

[Giova84]

hrev50440

I hit again this bug:

When I launch

cdrecord -checkdrive

I got:

Cdrecord-ProDVD-ProBD-Clone 3.02a06 (i586-pc-haiku) Copyright (C) 1995-2016 Joerg Schilling
Using libscg version 'schily-0.9'.
No target specified, trying to find one...
cdrecord: No such file or directory. Cannot open or use SCSI driver.
cdrecord: For possible targets try 'cdrecord -scanbus'.
cdrecord: For possible transport specifiers try 'cdrecord dev=help'.

And with

cdrecord -scanbus

I got

Cdrecord-ProDVD-ProBD-Clone 3.02a06 (i586-pc-haiku) Copyright (C) 1995-2016 Joerg Schilling
Using libscg version 'schily-0.9'.
scsibus0:
        0,0,0     0) '' '' '' NON CCS Disk
        0,1,0     1) *
        0,2,0     2) *
        0,3,0     3) 'ADAPTEC ' 'ACB-5500        ' 'FAKE' NON CCS Disk
        0,4,0     4) *
        0,5,0     5) *
        0,6,0     6) *
        0,7,0     7) *

This morning was fine...

[vidrep]

After doing a little research on this issue I found that virtually every distribution which uses cdrtools has reports for the same bug. This is not likely a Haiku bug at all, but a CDRTools bug. ​https://forums.gentoo.org/viewtopic-t-80086-start-0.html ​https://bugzilla.redhat.com/show_bug.cgi?id=88688 ​https://bugzilla.redhat.com/show_bug.cgi?id=141433

[vidrep]

Tested with hrev51206 x86_gcc2h Attached output of last session "cdrecord_adaptec_fake"

[vidrep]

Jörg Schilling, the author of CDRTools responded on IRC: [10:14] <schily> Looks like this is a set of fake INQUIRY from the kernel for an ATA drive [10:14] <schily> as it claims SCSI-2 compatibility in the Inquiry data [10:14] <schily> So you need to ask the person who sythesized this set of data [10:21] <schily> For SCSI via USB, the INQUIRY command is handled by the USB device [10:21] <schily> for ATA drives, the kernel converts other information from the drive and synthesizes an INQUIRY

[vidrep]

This is still a problem with current hrev51639.

Many of the issues are documented in the following related ticket: https://dev.haiku-os.org/ticket/9201

[vidrep]

Please retest with latest available Cdrtools 3.02a09, and make sure AHCI is disabled in the BIOS (see https://dev.haiku-os.org/ticket/13122)