* Kay Sievers [off-list ref] wrote:

On Wed, Jan 14, 2009 at 22:41, Ingo Molnar [off-list ref] wrote:

quoted

* Ingo Molnar [off-list ref] wrote:

quoted

quoted

You just disproved your own case :(

how so? 80% is not enough? I also checked Fedora and it has
SCHED_DEBUG=y in its kernel rpms.

Ubuntu has CONFIG_SCHED_DEBUG=y as well in their kernels.

$ cat /etc/SuSE-release
openSUSE 11.1 (x86_64)
VERSION = 11.1

$ uname -a
Linux nga 2.6.27.7-9-default #1 SMP 2008-12-04 18:10:04 +0100 x86_64
x86_64 x86_64 GNU/Linux

$ zgrep SCHED_DEBUG /proc/config.gz
CONFIG_SCHED_DEBUG=y

$ zgrep DEBUG_MUTEX /proc/config.gz
# CONFIG_DEBUG_MUTEXES is not set

Fedora has mutex debugging disabled too:

   # CONFIG_DEBUG_MUTEXES is not set

So the 3 main Linux distros, generating ~95% of the kerneloops.org 
feedback traffic, all have SCHED_DEBUG=y, and at least two have 
!DEBUG_MUTEXES. (possibly Ubuntu has that disabled it too)

	Ingo