Bug 34122 (papabaer)

Summary: Kerneloops by udisks-helper-a.... or skdump
Product: Other Reporter: papabaer (papabaer.linux)
Component: OtherAssignee: other_other
Status: RESOLVED OBSOLETE    
Severity: normal CC: alan, nobinmathai, papabaer.linux
Priority: P1    
Hardware: All   
OS: Linux   
Kernel Version: 2.6.38.5-rc1 Subsystem:
Regression: No Bisected commit-id:
Attachments: Kerneloops messages
udev rule to disable polling of udisks

Description papabaer 2011-04-30 12:15:18 UTC
Created attachment 55952 [details]
Kerneloops messages

Hello,

on a Samsung N220 with x86_64 flavor some tools which read the smart informations of sata disks generate kerneloops.

smartctl works without problems ( version 5.40 )

skdump /dev/sda generates kernel oops ( see below )

udisks-helper-a... generates kernel oops also ( see below )


More informations of the system:
  - Debian amd64 distribution ( mixed packages from squeeze to sid )
  - Self compiled kernel 2.6.38.5-rc1 for x86_64/amd64


Sincerely

papabaer
Comment 1 Nobin Mathew 2011-04-30 13:39:52 UTC
Can you try kernel later than 2.6.38-rc6, there are some changes when in for link_path_walk().
Comment 2 papabaer 2011-04-30 22:17:32 UTC
Created attachment 56012 [details]
udev rule to disable polling of udisks
Comment 3 papabaer 2011-04-30 22:18:27 UTC
I was using the kernel from debian sid, linux-image-2.6.38-2-amd64, which
should be the stock 2.6.38 with some patches from debian.
[http://packages.debian.org/sid/linux-image-2.6.38-2-amd64]

This problem reported above was not showing up then but I have several other
problems with that version especially with hibernating. After hibernate the
kernel crashes after a short time. I could not find out what the problem is
with 2.6.38 as the lines with debug information are to few.

For a workaround I disabled polling in udisks with a udev rule which is
attached.

With 2.6.38.5-rc1 I can hibernate and suspend without any problem with this
laptop.

Sincerely

papabae