Re: [PATCH] x86/nmi: ratelimit unknown nmi logs

2019-02-26 Thread Peter Zijlstra
On Wed, Feb 20, 2019 at 10:00:28AM -0800, Olof Johansson wrote: > On Wed, Feb 20, 2019 at 12:59 AM Peter Zijlstra wrote: > > > > On Tue, Feb 19, 2019 at 05:48:36PM -0800, Olof Johansson wrote: > > > Getting notified of unknown NMIs is obviously important, but getting > > > notified on every single

Re: [PATCH] x86/nmi: ratelimit unknown nmi logs

2019-02-20 Thread Olof Johansson
On Wed, Feb 20, 2019 at 12:59 AM Peter Zijlstra wrote: > > On Tue, Feb 19, 2019 at 05:48:36PM -0800, Olof Johansson wrote: > > Getting notified of unknown NMIs is obviously important, but getting > > notified on every single one, especially on larger systems with slow > > (serial) console causes m

Re: [PATCH] x86/nmi: ratelimit unknown nmi logs

2019-02-20 Thread Peter Zijlstra
On Tue, Feb 19, 2019 at 05:48:36PM -0800, Olof Johansson wrote: > Getting notified of unknown NMIs is obviously important, but getting > notified on every single one, especially on larger systems with slow > (serial) console causes more harm than good when it's a known noisy > non-relevant event. >

[PATCH] x86/nmi: ratelimit unknown nmi logs

2019-02-19 Thread Olof Johansson
Getting notified of unknown NMIs is obviously important, but getting notified on every single one, especially on larger systems with slow (serial) console causes more harm than good when it's a known noisy non-relevant event. So, let's ratelimit to avoid locking up the system. Signed-off-by: Olof