New: 2.6.25 regression: delay needed after audio CD insertion
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: [email protected]
ReportedBy: [email protected]
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 <[email protected]> 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
http://bugzilla.kernel.org/show_bug.cgi?id=10974
------- Comment #1 from [email protected] 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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