lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  PHC 
Open Source and information security mailing list archives
Hash Suite for Android: free password hash cracker in your pocket
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date:	Mon, 20 Oct 2014 14:48:26 +0800
From:	Greg KH <>
To:	Neil Zhang <>
Cc:	"" <>
Subject: Re: [PATCH] drivers: base: update cpu offline info when do hotplug

On Sun, Oct 19, 2014 at 11:39:23PM -0700, Neil Zhang wrote:
>> How much noise is this going to cause on a big/little system that
>> constantly hot unplug/plugs processors all of the time?
> Can you explain more what kind of noise will be introduced on a big/little system?

Have you tested this on such a machine?

> As I know IKS on arm will use cpu_suspend way to power down a core.

Are you sure that it also doesn't use that same functionality to drop a
processor to save power?

Why do you need/want this notification?  What are you going to do with
this information that you don't already have?


greg k-h
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

Powered by blists - more mailing lists