Messages in this thread | | | Date | Sun, 23 Aug 1998 23:01:26 +0200 | From | Pavel Machek <> | Subject | Re: copy_from_user() fix |
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Hi!
> > Also, I still maintain there should be a mode to raise SIGSEGV > > whenever a system call returns EFAULT. Not doing so breaks the system > > call/library routine transparency, and lets bugs go uncaught. > > 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)...
Pavel -- I'm really pavel@atrey.karlin.mff.cuni.cz. Pavel Look at http://atrey.karlin.mff.cuni.cz/~pavel/ ;-).
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