[Bug 11498] New: Teac DV28EV stops working with ide-cd

[Bug 11498] New: Teac DV28EV stops working with ide-cd

[bugme-daemon]

http://bugzilla.kernel.org/show_bug.cgi?id=11498

           Summary: Teac DV28EV stops working with ide-cd
           Product: IO/Storage
           Version: 2.5
     KernelVersion: 2.6.27-rc5
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: IDE
        AssignedTo: io_ide@kernel-bugs.osdl.org
        ReportedBy: bhutchings@solarflare.com


Latest working kernel version: 2.6.18
Earliest failing kernel version: 2.6.26-rc2
Distribution: RHEL 5
Hardware Environment: Dell PowerEdge 6950, TEAC DVD-ROM DV28EV
Software Environment:
Problem Description:
The DVD-ROM drive starts returning status 0xd0 after the machine has been
running for some time. The drive is not being used, but HAL is installed and
appears to open the device every 5 seconds, so at least its status is being
read. This could be a hardware/firmware problem but has only been observed when
running recent kernels (2.6.26-rc2 and 2.6.27-rc5). It has also been observed
on a Dell PowerEdge 2950 with the same model of DVD-ROM drive.


Steps to reproduce:


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[Bug 11498] Teac DV28EV stops working with ide-cd

[bugme-daemon]

http://bugzilla.kernel.org/show_bug.cgi?id=11498





------- Comment #1 from bhutchings@solarflare.com  2008-09-05 07:32 -------
The kernel config is based on the RHEL 5 PAE kernel config; I will attach the
config we used for 2.6.27-rc5. I'm not sure it's feasible to bisect this as the
error has only been seen after the machine has been running for several hours.

We saw the following kernel error messages:

hda: irq timeout: status=0xd0 { Busy }
ide: failed opcode was: unknown
hda: status timeout: status=0xd0 { Busy }
ide: failed opcode was: unknown
hda: drive not ready for command

The last three lines were repeated at 5-second intervals, apparently whenever
the device was opened.


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[Bug 11498] Teac DV28EV stops working with ide-cd

[bugme-daemon]

http://bugzilla.kernel.org/show_bug.cgi?id=11498





------- Comment #2 from bhutchings@solarflare.com  2008-09-05 07:42 -------
Created an attachment (id=17635)
 --> (http://bugzilla.kernel.org/attachment.cgi?id=17635&action=view)
config for 2.6.27-rc5


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[Bug 11498] Teac DV28EV stops working with ide-cd

[bugme-daemon]

http://bugzilla.kernel.org/show_bug.cgi?id=11498





------- Comment #3 from bbpetkov@yahoo.de  2008-09-06 06:06 -------
Ok, attached is an inquisitive patch. Ben, do you care to apply it ontop of
27-rc5 and then send me the output so that we know for which packet command the
irq times out and thus see what hald is saying to the drive? 

Thanks.


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[Bug 11498] Teac DV28EV stops working with ide-cd

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http://bugzilla.kernel.org/show_bug.cgi?id=11498





------- Comment #4 from bbpetkov@yahoo.de  2008-09-06 06:08 -------
Created an attachment (id=17648)
 --> (http://bugzilla.kernel.org/attachment.cgi?id=17648&action=view)
dump failing packet command


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[Bug 11498] Teac DV28EV stops working with ide-cd

[bugme-daemon]

http://bugzilla.kernel.org/show_bug.cgi?id=11498


dcl@hppine99.gbr.hp.com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |dcl@hppine99.gbr.hp.com




------- Comment #5 from dcl@hppine99.gbr.hp.com  2008-10-08 01:03 -------
I started to investigate this problem when it was also reported to me. The
issue seems to pertain to the TEAC DV*28* family of devices only.  The HAL
'hald-addon-storage' polling daemon seemed to be the process that perturbed the
problem, as a result I extracted the relevant syscalls from an strace and was
able to develop a simple stand-alone reproducer script and C-program.

Here are the results of a test run, showing the problem:

[root@gtr01 tests]# ./tryme
Problem seen 14 times in 500000 iterations


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[Bug 11498] Teac DV28EV stops working with ide-cd

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http://bugzilla.kernel.org/show_bug.cgi?id=11498





------- Comment #6 from dcl@hppine99.gbr.hp.com  2008-10-08 01:09 -------
Created an attachment (id=18210)
 --> (http://bugzilla.kernel.org/attachment.cgi?id=18210&action=view)
The tryme script, runs the test program and monitors the results.


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[Bug 11498] Teac DV28EV stops working with ide-cd

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http://bugzilla.kernel.org/show_bug.cgi?id=11498





------- Comment #7 from dcl@hppine99.gbr.hp.com  2008-10-08 01:10 -------
Created an attachment (id=18211)
 --> (http://bugzilla.kernel.org/attachment.cgi?id=18211&action=view)
The test program


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[Bug 11498] Teac DV28EV stops working with ide-cd

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http://bugzilla.kernel.org/show_bug.cgi?id=11498


dcl@hppine99.gbr.hp.com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #18210|application/octet-stream    |text/plain
          mime type|                            |




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[Bug 11498] Teac DV28EV stops working with ide-cd

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http://bugzilla.kernel.org/show_bug.cgi?id=11498


bbpetkov@yahoo.de changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|io_ide@kernel-bugs.osdl.org |bbpetkov@yahoo.de
             Status|NEW                         |ASSIGNED




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