Re: signal-race-fix.patch

[Corey Minyard <minyard@acm.org>]

David S. Miller wrote:

>On Fri, 19 Mar 2004 16:42:03 -0600
>Corey Minyard <minyard@acm.org> wrote:
>
>  
>
>>BTW, here is a new patch that covers that problem.
>>    
>>
>
>Ok, I'll cook up the sparc bits.
>
>Although I can just see someone updating something in the 'ka' and
>expecting it to take effect, then spending a serious amount of time
>debugging only to find it's a pointer to a stack local copy of the
>info.
>
>:-)
>  
>
True.  I should probably rename the variable to ka_copy, or something 
like that to avoid somebody using it.  It actually happens in another 
place in the code, too, on x86.  There is a situation in setup_frame() 
and setup_rt_frame() where if it cannot write the signal frame to the 
stack, it sets the handler to SIG_DFL if it is a SEGV.

I'm not sure what to do about that one yet.

-Corey