[Bug 10974] New: 2.6.25 regression: delay needed after audio CD insertion

[Bug 10974] New: 2.6.25 regression: delay needed after audio CD insertion

[bugme-daemon]

http://bugzilla.kernel.org/show_bug.cgi?id=10974

           Summary: 2.6.25 regression: delay needed after audio CD insertion
           Product: SCSI Drivers
           Version: 2.5
     KernelVersion: 2.6.25
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Other
        AssignedTo: scsi_drivers-other@kernel-bugs.osdl.org
        ReportedBy: geert@linux-m68k.org


Latest working kernel version: 2.6.24
Hardware Environment: PS3
Problem Description: Audio CD cannot be read within 10 seconds after insertion

Steps to reproduce:
  1. Insert an audio CD
  2. Run the following command as soon as the blue CD/DVD/BD drive LED
     stops blinking and is lit continuously:

     cdparanoia -Z -q 1-1[:1] /dev/null || echo failed

On 2.6.25 (and current mainline), you have to wait ca. 10 seconds after
insertion, or it will fail.
On 2.6.24 and older, it just works immediately.

(I could reproduce it on an Athlon with sym53c8xx SCSI running a Debianized
 2.6.25 kernel, too, but I didn't try a 2.6.24 kernel there)

The problem was introduced by:

commit 38582a62ecd337de4212004c7d4844899dc57890
Author: James Bottomley <James.Bottomley@HansenPartnership.com>
Date:   Wed Feb 6 13:01:58 2008 -0600

    [SCSI] sr: fix test unit ready responses

References: http://lkml.org/lkml/2008/6/13/89


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[Bug 10974] 2.6.25 regression: delay needed after audio CD insertion

[bugme-daemon]

http://bugzilla.kernel.org/show_bug.cgi?id=10974





------- Comment #1 from geert@linux-m68k.org  2008-10-21 02:37 -------
I wrote:
| (I could reproduce it on an Athlon with sym53c8xx SCSI running a Debianized
|  2.6.25 kernel, too, but I didn't try a 2.6.24 kernel there)

However, I gave a Debianized 2.6.24 kernel a try on the machine above. It
behaved differently, but it still didn't work.

CD-ROM specs:
  Vendor: PLEXTOR  Model: CD-R   PX-W1210S Rev: 1.01
  Type:   CD-ROM                           ANSI  SCSI revision: 02

So perhaps it's just a fortunate `accident' the above command sequence works on
PS3 on 2.6.x with x <= 24?


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