On Wed, 10 Oct 2018 at 11:56, Lukasz Luba <l.l...@partner.samsung.com> wrote: > > Hi Krzysztof, > > Is it still valid that the Exynos has locking issues?
The prepare lock of clocks was not solved entirely. We just implemented a set of workarounds. > Or is it enabled 'just-in-case'? Yes, all debugging features are implemented just in case to spot any issue as early as possible. > On arm64 the config misses that setting. > Should be enabled there as well? Because it is a shared defconfig among all platforms and apparently no one wanted to convincing others to enable it. > You have introduced this entry a year ago, probably during bug > investigation. Actually not, I enabled it much later after issues where discovered. > The issue is in lockdep, the setting which enables it in Exynos > is prove_locking. For now, just get rid of the second. > My tests showed lockdep impact and not other minor debug features > enabled. You did not reply directly to my comment - you disabled all debug for locking. It seems you are unaware of this so I question your test results. If you run tests on this patch, then basically you compared existing config with a config stripped out of debugging around locks. I understand that this is not what you wanted... Best regards, Krzysztof