bringing up *any* browser cripples system performance

Ankur Sinha sanjay.ankur at
Sun Apr 6 22:39:37 UTC 2014

On Sun, 2014-04-06 at 09:43 -0400, Robert P. J. Day wrote:
> no change under nodebug kernel -- this is the nodebug kernel,
> correct?
> $ uname -r
> 3.15.0-0.rc0.git5.2.fc21.x86_64+debug
> $

Er. No. This is the debug kernel. The nodebug kernel would be just 
"3.15.0-0.rc0.git5.2.fc21.x86_64". (I'm using it now.)

Since you're already on 3.15.0-0.rc0.git5.2.fc21, just attempting to
install the nodebug kernel will not do it. They share the same N-V-R and
yum will think that it's already installed. You will need to:

- yum reinstall kernel-3.15.0-0.rc0.git5.2.fc21.x86_64 #with the rawhide
nodebug repo enabled

This should probably work, since both debug and nodebug kernels share
the same N-V-R.

Or, the longer, "verbose" method:

- boot into an older kernel
- manually remove the 3.15 kernel
- yum update kernel with the nodebug repo enabled

Warm regards,
Ankur (FranciscoD)

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