New: dmesg spam: "scsi host5: __pm_runtime_resume() returns 1" (DVD writer)
https://bugzilla.kernel.org/show_bug.cgi?id=20112
Summary: dmesg spam: "scsi host5: __pm_runtime_resume() returns
1" (DVD writer)
Product: SCSI Drivers
Version: 2.5
Kernel Version: Linux version 2.6.36-rc7-blueyed-00145-g50c6dc9
(root@base) (gcc version 4.4.5 (Ubuntu/Linaro
4.4.4-14ubuntu5) ) #2 SMP PREEMPT Mon Oct 11 21:53:45
CEST 2010
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Other
AssignedTo: [email protected]
ReportedBy: [email protected]
Regression: NoThe system log gets spammed via dmesg with several of the following errors per second:
Oct 11 22:53:39 base kernel: [ 2147.766956] scsi host5: __pm_runtime_resume()! Oct 11 22:53:39 base kernel: [ 2147.766962] scsi host5: __pm_runtime_resume()
returns 1!
Apparently this refers to my DVD drive, according to the /proc files:
Quoted 1 line
From
/proc/scsi/scsi:
Host: scsi5 Channel: 00 Id: 01 Lun: 00
Vendor: HL-DT-ST Model: DVDRAM GSA-4163B Rev: A100
Type: CD-ROM ANSI SCSI revision: 05
% cat /proc/scsi/sg/devices
[...]
5 0 1 0 5 1 1 0 1
% cat /proc/scsi/sg/device_strs
[...]
HL-DT-ST DVDRAM GSA-4163B A100
This might be caused by CONFIG_PM_DEBUG=y, and might actually be expected. In this case, please excuse this report then - but consider making it less verbose.
My /proc/config.gz unzipped: http://pastebin.com/knXt8nmw
lspci -vvv: http://pastebin.com/iMWbaUPC
Might this be related to the writer failing to detect rewritable media? (which might be a regression I still would have to investigate deeper into)
(This might be related to https://bugzilla.kernel.org/show_bug.cgi?id=19712 - where only a "__pm_runtime_resume()!" is posted repeatedly.)
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[Bug 20112] dmesg spam: "scsi host5: __pm_runtime_resume() returns 1" (DVD writer)
https://bugzilla.kernel.org/show_bug.cgi?id=20112
--- Comment #1 from Daniel Hahler <[email protected]> 2010-10-21 18:31:24 --- This is related to CONFIG_PM_VERBOSE=y, unsetting it does not cause this message spam.
Is this intentional?
Does it indicate some bug or broken hardware?
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[Bug 20112] dmesg spam: "scsi host5: __pm_runtime_resume() returns 1" (DVD writer)
In reply to [email protected]https://bugzilla.kernel.org/show_bug.cgi?id=20112
Nix <[email protected]> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |[email protected]
--- Comment #2 from Nix <[email protected]> 2010-10-31 20:48:55 --- I can confirm this logspam. In my case it relates to SCSI host 3, "CDDVDW SH-S223F", a DVD writer. (The writer contains no media.)
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[Bug 20112] dmesg spam: "scsi host5: __pm_runtime_resume() returns 1" (DVD writer)
In reply to [email protected]https://bugzilla.kernel.org/show_bug.cgi?id=20112
Alan <[email protected]> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
CC| |[email protected]
Kernel Version|Linux version |2.6.36-rc7- ubuntu i686
|2.6.36-rc7-blueyed-00145-g5 |
|0c6dc9 (root@base) (gcc |
|version 4.4.5 |
|(Ubuntu/Linaro |
|4.4.4-14ubuntu5) ) #2 SMP |
|PREEMPT Mon Oct 11 21:53:45 |
|CEST 2010 |
Resolution| |OBSOLETESignature · 3 lines
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