Re: copy_from_user() fix

Stephen R. van den Berg (srb@cuci.nl)
Mon, 24 Aug 1998 16:39:13 +0200

Alan Cox wrote:
>> > Thats a matter for glibc. If you wrap the glibc syscall macros to do
>> > a raise(SIGSEGV) then you get your desire. So its a non kernel item ;)
>>
>> Still, I think that this could be in kernel. It is faster to do here
>> (you can SIGSEGV it directly from pagefault handler), and IMO you
>> _should_ get SIGSEGV for read(0,0,1)...

>Since when has SIGSEGV on a memory error been performance critical ?

To score higher on the core-dumps-per-minute benchmark?
Sorry, couldn't resist :-).

-- 
Sincerely,                                                          srb@cuci.nl
           Stephen R. van den Berg (AKA BuGless).


This signature third word omitted, yet is comprehensible.


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