Re: [PATCH 2/5] x86: fix runtime error in arch/x86/kernel/cpu/mcheck/mce_amd_64.c

[Cyrill Gorcunov <gorcunov@gmail.com>]

[Ingo Molnar - Mon, Jan 28, 2008 at 08:01:49PM +0100]
| 
| * Greg KH <gregkh@suse.de> wrote:
| 
| > > Are kobjects protected against accidental copying? If not add &kobj 
| > > to the 'magic value' too, and check that - it becomes 
| > > copying-resistent that way and has the same cost to check. (which is 
| > > negligible anyway)
| > 
| > Oh, that's a very cool idea, I like it :)
| 
| hey, you are welcome :-)
| 
| [ I guess i should not mention that i've implemented list debugging for 
|   Linux that checksums the struct list contents and stores the checksum 
|   in it (offset by a magic value plus to address of the list head), and 
|   thus protects it against accidental corruption? It was capable of 
|   reliably detecting mixed up list_add() arguments for example, it 
|   detected list corruption of _every_ sort, it detected double
|   list_del() and list_add() of an already active list member as well. It
|   was even capable of detecting SMP races: two parallel unserialized
|   list_del()'s on the same list head were detected and warned about as 
|   well. I guess i should release it one of these days? =B-) ]
| 

did miss some words while reading this... ;)
really sorry, drop the mail i sent please

		- Cyrill -