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Date: Sat, 14 Jan 2012 18:34:04 -0800
From: Greg KH <gregkh@suse.de>
To: Tony Luck <tony.luck@intel.com>
Cc: Alan Stern <stern@rowland.harvard.edu>,
        Linus Torvalds <torvalds@linux-foundation.org>,
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Subject: Re: x86/mce: machine check warning during poweroff
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On Sat, Jan 14, 2012 at 06:05:24PM -0800, Tony Luck wrote:
> On Sat, Jan 14, 2012 at 8:30 AM, Alan Stern <stern@rowland.harvard.edu> wrote:
> > The driver core isn't designed to handle device structures that get
> > unregistered and then spring back to life; callers are supposed to
> > allocate a fresh new structure instead.
> 
> Does every caller use "kzalloc()" for this fresh new structure (or even
> for the original registration) rather than "kmalloc()"?

They better, as that's what they are required to do :)

The kernel would be crashing with slab debugging enabled, if it wasn't
so today.

thanks,

greg k-h