Kernel with kernel-debug option

[Fernando Apesteguía]

Hello list!

In the last update for the Fedora Kernel, I can read the following:

"This update also introduces 'kernel-debug', a variant with
additional debugging options enabled. These kernels may run
with lower performance and increased memory overhead than
the non-debug variants."

My question is: is it possible to get this kernel without this
kernel-debug option? I don't know if I want to update to a _possibly_
slower kernel (althoug on the contrary it fixes some bugs)

Anybody measured this _possibly_ lost of performance?

Thanks in advance

[Mark Knoop]

On 19/01/07, Fernando Apesteguía <fernando.apesteguia(a)gmail.com&gt; wrote:
>  Hello list!
>
>  In the last update for the Fedora Kernel, I can read the following:
>
>  "This update also introduces 'kernel-debug', a variant with
>  additional debugging options enabled. These kernels may run
>  with lower performance and increased memory overhead than
>  the non-debug variants."
>
>  My question is: is it possible to get this kernel without this
>  kernel-debug option? I don't know if I want to update to a _possibly_
>  slower kernel (althoug on the contrary it fixes some bugs) 
Um, you could _not_ install kernel-debug...

-- 
Mark Knoop

[Tim]

On Fri, 2007-01-19 at 12:02 +0100, Fernando Apesteguía wrote:
>  "This update also introduces 'kernel-debug', a variant
> with
>  additional debugging options enabled. These kernels may run
>  with lower performance and increased memory overhead than
>  the non-debug variants."
>  
>  My question is: is it possible to get this kernel without this
>  kernel-debug option? 
I thought it was an *extra* kernel, that you'd install if you wanted to,
instead.  Like you had kernel, kernel-smp, and so on...

-- 
(Currently running FC4, in case that's important to the thread)

Don't send private replies to my address, the mailbox is ignored.
I read messages from the public lists.

[Fernando Apesteguía]

On 1/19/07, Tim <ignored_mailbox(a)yahoo.com.au&gt; wrote:
>  On Fri, 2007-01-19 at 12:02 +0100, Fernando Apesteguía wrote:
>  > "This update also introduces 'kernel-debug', a variant with
>  > additional debugging options enabled. These kernels may run
>  > with lower performance and increased memory overhead than
>  > the non-debug variants."
>  >
>  > My question is: is it possible to get this kernel without this
>  > kernel-debug option?
>
>  I thought it was an *extra* kernel, that you'd install if you wanted to,
>  instead.  Like you had kernel, kernel-smp, and so on... 
Ah! OK, thanks, I misunderstood the message, so my next question is ,
when I update to this kernel, which one will be used by default? the
normal one or the kernel-debug version?

Thanks for that quick replies!
>  --
>  (Currently running FC4, in case that's important to the thread)
>
>  Don't send private replies to my address, the mailbox is ignored.
>  I read messages from the public lists.
>
>  --
>  fedora-list mailing list
>  fedora-list(a)redhat.com
>  To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list
>

[Mark Knoop]

On 19/01/07, Fernando Apesteguía <fernando.apesteguia(a)gmail.com&gt; wrote:
>  On 1/19/07, Tim <ignored_mailbox(a)yahoo.com.au&gt; wrote:
>  > On Fri, 2007-01-19 at 12:02 +0100, Fernando Apesteguía wrote:
>  > > "This update also introduces 'kernel-debug', a variant with
>  > > additional debugging options enabled. These kernels may run
>  > > with lower performance and increased memory overhead than
>  > > the non-debug variants."
>  > >
>  > > My question is: is it possible to get this kernel without this
>  > > kernel-debug option?
>  >
>  > I thought it was an *extra* kernel, that you'd install if you wanted to,
>  > instead.  Like you had kernel, kernel-smp, and so on...
>
>  Ah! OK, thanks, I misunderstood the message, so my next question is ,
>  when I update to this kernel, which one will be used by default? the
>  normal one or the kernel-debug version? 
They are different packages:

$ yum list kernel\*
Available Packages
kernel.i686                              2.6.19-1.2895.fc6      updates
kernel.i586                              2.6.19-1.2895.fc6      updates
kernel-PAE-debug.i686                    2.6.19-1.2895.fc6      updates
kernel-PAE-debug-devel.i686              2.6.19-1.2895.fc6      updates
kernel-debug.i686                        2.6.19-1.2895.fc6      updates
kernel-debug-devel.i686                  2.6.19-1.2895.fc6      updates
kernel-devel.i686                        2.6.19-1.2895.fc6      updates

Just install the kernel package - this will be the default update.

-- 
Mark Knoop

[Fernando Apesteguía]

On 1/19/07, Mark Knoop <mpknoop(a)gmail.com&gt; wrote:
>  On 19/01/07, Fernando Apesteguía
> <fernando.apesteguia(a)gmail.com&gt; wrote:
>  > On 1/19/07, Tim <ignored_mailbox(a)yahoo.com.au&gt; wrote:
>  > > On Fri, 2007-01-19 at 12:02 +0100, Fernando Apesteguía wrote:
>  > > > "This update also introduces 'kernel-debug', a variant with
>  > > > additional debugging options enabled. These kernels may run
>  > > > with lower performance and increased memory overhead than
>  > > > the non-debug variants."
>  > > >
>  > > > My question is: is it possible to get this kernel without this
>  > > > kernel-debug option?
>  > >
>  > > I thought it was an *extra* kernel, that you'd install if you wanted to,
>  > > instead.  Like you had kernel, kernel-smp, and so on...
>  >
>  > Ah! OK, thanks, I misunderstood the message, so my next question is ,
>  > when I update to this kernel, which one will be used by default? the
>  > normal one or the kernel-debug version?
>
>  They are different packages:
>
>  $ yum list kernel\*
>  Available Packages
>  kernel.i686                              2.6.19-1.2895.fc6      updates
>  kernel.i586                              2.6.19-1.2895.fc6      updates
>  kernel-PAE-debug.i686                    2.6.19-1.2895.fc6      updates
>  kernel-PAE-debug-devel.i686              2.6.19-1.2895.fc6      updates
>  kernel-debug.i686                        2.6.19-1.2895.fc6      updates
>  kernel-debug-devel.i686                  2.6.19-1.2895.fc6      updates
>  kernel-devel.i686                        2.6.19-1.2895.fc6      updates
>
>  Just install the kernel package - this will be the default update. 
Using default updates results in the kernel-debug default. Now I get a
PCI warning message at boot time and a message at the bottom of the
screen "Kernel alive" that I didn't see before.

Cheers
>  --
>  Mark Knoop
>
>  --
>  fedora-list mailing list
>  fedora-list(a)redhat.com
>  To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list
>

[Tim]

Mark Knoop:
> > Just install the kernel package - this will be the default
> update. 
Fernando Apesteguía:
>  Using default updates results in the kernel-debug default. Now I get
> a
>  PCI warning message at boot time and a message at the bottom of the
>  screen "Kernel alive" that I didn't see before. 
I haven't got around to doing an update on FC6, yet.  But even if you
install more than one kernel, which one you boot up with is your choice.

I'd recommend altering the default options for one of the YUM plugins,
so that you get to keep a few more kernels installed.  That gives you
more choices to deal with kernel problems.

-- 
(Currently testing FC5, but still running FC4, if that's important.)

Don't send private replies to my address, the mailbox is ignored.
I read messages from the public lists.

[Tim]

Fernando Apesteguía:
> > Using default updates results in the kernel-debug default. Now I
> get a
> > PCI warning message at boot time and a message at the bottom of the
> > screen "Kernel alive" that I didn't see before. 
Tim:
>  I haven't got around to doing an update on FC6, yet.  But even if
> you
>  install more than one kernel, which one you boot up with is your choice. 
Okay, now I have run a yum update on FC6.  It didn't want to install the
nex extra kernel-debug module.  All that was updated was the ordinary
686 kernel (they're the only ones that I have installed).  As I
expected.