| Message ID | 1409152766-31320-1-git-send-email-robdclark@gmail.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
Acked-by: Maarten Lankhorst <maarten.lankhorst@canonical.com> On 27-08-14 17:19, Rob Clark wrote: > We really don't want distro's enabling this in their kernels. Try and > make that more clear. > > Signed-off-by: Rob Clark <robdclark@gmail.com> > --- > lib/Kconfig.debug | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug > index 07c2832..1b233fc 100644 > --- a/lib/Kconfig.debug > +++ b/lib/Kconfig.debug > @@ -892,6 +892,10 @@ config DEBUG_WW_MUTEX_SLOWPATH > the full mutex checks enabled with (CONFIG_PROVE_LOCKING) this > will test all possible w/w mutex interface abuse with the > exception of simply not acquiring all the required locks. > + Note that this feature can introduce significant overhead, so > + it really should not be enabled in a production or distro kernel, > + even a debug kernel. If you are a driver writer, enable it. If > + you are a distro, do not. > > config DEBUG_LOCK_ALLOC > bool "Lock debugging: detect incorrect freeing of live locks" >
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 07c2832..1b233fc 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -892,6 +892,10 @@ config DEBUG_WW_MUTEX_SLOWPATH the full mutex checks enabled with (CONFIG_PROVE_LOCKING) this will test all possible w/w mutex interface abuse with the exception of simply not acquiring all the required locks. + Note that this feature can introduce significant overhead, so + it really should not be enabled in a production or distro kernel, + even a debug kernel. If you are a driver writer, enable it. If + you are a distro, do not. config DEBUG_LOCK_ALLOC bool "Lock debugging: detect incorrect freeing of live locks"
We really don't want distro's enabling this in their kernels. Try and make that more clear. Signed-off-by: Rob Clark <robdclark@gmail.com> --- lib/Kconfig.debug | 4 ++++ 1 file changed, 4 insertions(+)