kernel tainted?

[Paul Cartwright]

I got this error report today:

A kernel problem occurred, but your kernel has been tainted (flags:GW).
Kernel maintainers are unable to diagnose tainted reports.

not sure where to look in /var/log, nothing in messages.

 what does it mean?

-- 
Paul Cartwright
Registered Linux User #367800 and new counter #561587

[Lawrence E Graves]

On 03/13/2014 05:44 PM, Sam Varshavchik wrote:
>  Lawrence E Graves writes:
>
> >
> > On 03/13/2014 08:44 AM, Robert P. J. Day wrote:
> >> dmesg | grep -i taint
> > root@JesusChrist ~]# dmesg | grep -i taint
> > [    3.320975] nvidia: module license 'NVIDIA' taints kernel.
> > [    3.320980] Disabling lock debugging due to kernel taint
> > [    3.363461] nvidia: module verification failed: signature and/or 
> > required key missing - tainting kernel
> > [r
> > What to do next if this is the readout of the above command.
>
>  What to do next, is to send your bug report to Nvidia. They are the 
>  only one who know what their binary blob does, to the kernel, and are 
>  the only ones who know how to debug it.
>  
Your would be right if nvidia still supported the nvidia card I have but 
thank God for the Fedora team who have gone out of their to support the 
nvidia card I have and since it is not causing me any trouble, I am 
satisfied. Thank you for your comment and interest in this.
>  
-- 
All things are workable but don't all things work.
Prov. 3:5 & 6

[Sam Varshavchik]

Lawrence E Graves writes:

>  On 03/13/2014 08:44 AM, Robert P. J. Day wrote:
> > dmesg | grep -i taint
>  root@JesusChrist ~]# dmesg | grep -i taint
>  [    3.320975] nvidia: module license 'NVIDIA' taints kernel.
>  [    3.320980] Disabling lock debugging due to kernel taint
>  [    3.363461] nvidia: module verification failed: signature and/or required  
>  key missing - tainting kernel
>  [r
>  What to do next if this is the readout of the above command. 
What to do next, is to send your bug report to Nvidia. They are the only one  
who know what their binary blob does, to the kernel, and are the only ones  
who know how to debug it.

[Paul Cartwright]

On 03/13/2014 10:44 AM, Robert P. J. Day wrote:
> >  cat tainted
> > > 512
>    that bitmask corresponds to a kernel warning having occurred. i
>  would just grep thusly:
>
>  $ dmesg | grep -i taint
>
>  which might identify the module that tainted the kernel when it was
>  loaded.
>
>  rday 
dmesg | grep -i taint
[ 1934.975594] CPU: 4 PID: 3489 Comm: umount Not tainted
3.13.6-200.fc20.x86_64 #1
[79967.867340] CPU: 1 PID: 8641 Comm: umount Tainted: G        W   
3.13.6-200.fc20.x86_64 #1

I added 2 partitions to be mounted in /etc/fstab, would that be it??

-- 
Paul Cartwright
Registered Linux User #367800 and new counter #561587

[Lawrence E Graves]

On 03/13/2014 08:44 AM, Robert P. J. Day wrote:
>  dmesg | grep -i taint 
root@JesusChrist ~]# dmesg | grep -i
taint
[    3.320975] nvidia: module license 'NVIDIA' taints kernel.
[    3.320980] Disabling lock debugging due to kernel taint
[    3.363461] nvidia: module verification failed: signature and/or 
required key missing - tainting kernel
[r
What to do next if this is the readout of the above command.

-- 
All things are workable but don't all things work.
Prov. 3:5 & 6

[Robert P. J. Day]

On Thu, 13 Mar 2014, Lawrence E Graves wrote:

>  On 03/13/2014 08:44 AM, Robert P. J. Day wrote:
>  > dmesg | grep -i taint
>  root@JesusChrist ~]# dmesg | grep -i taint
>  [    3.320975] nvidia: module license 'NVIDIA' taints kernel.
>  [    3.320980] Disabling lock debugging due to kernel taint
>  [    3.363461] nvidia: module verification failed: signature and/or required
>  key missing - tainting kernel
>  [r
>  What to do next if this is the readout of the above command. 
  nothing ... you're loading a proprietary module which will, by
definition, taint the kernel, no way to prevent that. just because
your kernel has been "tainted" doesn't necessarily reflect a problem.

rday

-- 

========================================================================
Robert P. J. Day                                 Ottawa, Ontario, CANADA
                        http://crashcourse.ca

Twitter:                                       http://twitter.com/rpjday
LinkedIn:                               http://ca.linkedin.com/in/rpjday
========================================================================

[Robert P. J. Day]

On Thu, 13 Mar 2014, Paul Cartwright wrote:

>  On 03/13/2014 10:23 AM, Robert P. J. Day wrote:
>  > On Thu, 13 Mar 2014, Paul Cartwright wrote:
>  >
>  >> I got this error report today:
>  >>
>  >> A kernel problem occurred, but your kernel has been tainted (flags:GW).
>  >> Kernel maintainers are unable to diagnose tainted reports.
>  >>
>  >> not sure where to look in /var/log, nothing in messages.
>  >>
>  >>  what does it mean?
>  >   what's the value in your /proc/sys/kernel/tainted file?
>  >
>  > rday
>  >
>   cat tainted
>  512 
  that bitmask corresponds to a kernel warning having occurred. i
would just grep thusly:

$ dmesg | grep -i taint

which might identify the module that tainted the kernel when it was
loaded.

rday

-- 

========================================================================
Robert P. J. Day                                 Ottawa, Ontario, CANADA
                        http://crashcourse.ca

Twitter:                                       http://twitter.com/rpjday
LinkedIn:                               http://ca.linkedin.com/in/rpjday
========================================================================

[Paul Cartwright]

On 03/13/2014 10:23 AM, Robert P. J. Day wrote:
>  On Thu, 13 Mar 2014, Paul Cartwright wrote:
>
> > I got this error report today:
> >
> > A kernel problem occurred, but your kernel has been tainted (flags:GW).
> > Kernel maintainers are unable to diagnose tainted reports.
> >
> > not sure where to look in /var/log, nothing in messages.
> >
> >  what does it mean?
>    what's the value in your /proc/sys/kernel/tainted file?
>
>  rday
>  
 cat tainted
512

running fedora 20 amd_64
cat /etc/os*
NAME=Fedora
VERSION="20 (Heisenbug)"
ID=fedora
VERSION_ID=20
PRETTY_NAME="Fedora 20 (Heisenbug)"
ANSI_COLOR="0;34"
CPE_NAME="cpe:/o:fedoraproject:fedora:20"
HOME_URL="https://fedoraproject.org/"
BUG_REPORT_URL="https://bugzilla.redhat.com/"
REDHAT_BUGZILLA_PRODUCT="Fedora"
REDHAT_BUGZILLA_PRODUCT_VERSION=20
REDHAT_SUPPORT_PRODUCT="Fedora"
REDHAT_SUPPORT_PRODUCT_VERSION=20

uname -a
Linux pauls-server 3.13.6-200.fc20.x86_64 #1 SMP Fri Mar 7 17:02:28 UTC
2014 x86_64 x86_64 x86_64 GNU/Linux


-- 
Paul Cartwright
Registered Linux User #367800 and new counter #561587

[Robert P. J. Day]

On Thu, 13 Mar 2014, Paul Cartwright wrote:

>  I got this error report today:
>
>  A kernel problem occurred, but your kernel has been tainted (flags:GW).
>  Kernel maintainers are unable to diagnose tainted reports.
>
>  not sure where to look in /var/log, nothing in messages.
>
>   what does it mean? 
  what's the value in your /proc/sys/kernel/tainted file?

rday

-- 

========================================================================
Robert P. J. Day                                 Ottawa, Ontario, CANADA
                        http://crashcourse.ca

Twitter:                                       http://twitter.com/rpjday
LinkedIn:                               http://ca.linkedin.com/in/rpjday
========================================================================