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New: Huge amounts of "HDIO_GET_IDENTITY failed for /dev/sr0" messages during boot

Bug 30062 [email protected] 1 participant 2 messages Feb 28, 2011 – Mar 2, 2011 SCSI

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https://bugzilla.kernel.org/show_bug.cgi?id=30062

Summary: Huge amounts of "HDIO_GET_IDENTITY failed for
/dev/sr0" messages during boot
Product: IO/Storage
Version: 2.5
Kernel Version: 2.6.38-rc6
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: blocking
Priority: P1
Component: SCSI
AssignedTo: [email protected]
ReportedBy: [email protected]
Regression: Yes

My system (Crux 2.7) contains an older SCSI disk, and a SCSI CD writer (Plextor). When booting into 2.6.38, I get an endless sequence of errors like

ata_id[xyz]: HDIO_GET_IDENTITY failed for '/dev/sr0'

The errors start when the command

    udevadm trigger --type=devices --action=add

is executed. There are also about 50 udevd processes in the process list. The system gets extremely slow, and the only way to make it usable again is by saying 'killall udevd'. Apparently udev has an issue with the CD writer (while it handles the harddisk correctly).

The same system works well with kernel 2.6.37.

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[Bug 30062] Huge amounts of "HDIO_GET_IDENTITY failed for /dev/sr0" messages during boot

https://bugzilla.kernel.org/show_bug.cgi?id=30062

Rafael J. Wysocki <[email protected]> changed:

What |Removed |Added
----------------------------------------------------------------------------

                 CC|                            |[email protected],
                   |                            |[email protected],
                   |                            |[email protected]
          Component|SCSI                        |Serial ATA
             Blocks|                            |27352
         AssignedTo|[email protected]  |[email protected]
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