Messages in this thread | | | Date | Sun, 28 Feb 2021 16:07:04 -0800 | From | "Paul E. McKenney" <> | Subject | Re: [PATCH 3/3] kernel/smp: add more data to CSD lock debugging |
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On Fri, Feb 26, 2021 at 10:05:51PM +0100, Peter Zijlstra wrote: > On Fri, Feb 26, 2021 at 10:12:05AM -0800, Paul E. McKenney wrote: > > On Fri, Feb 26, 2021 at 05:38:44PM +0100, Peter Zijlstra wrote: > > > > > > I hate all of this, but if this will finally catch the actual problem, > > > we can then revert all this, so sure. > > > > OK, I will bite... What exactly do you hate about it? > > It's ugly and messy. We're basically commiting a debug session. Normally > gunk like this is done in private trees, then we find the problem and > fix that and crap like this never sees the light of day.
Is your hatred due to the presence of debug code at all, or a belief that this code is unlikely to be useful in any subsequent IPI-related bug hunt?
Thanx, Paul
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