Messages in this thread | | | Date | Wed, 25 Mar 1998 11:24:17 +0100 | From | Pavel Machek <> | Subject | Re: patch for 2.1.90 net/core/iovec et al |
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Hi!
> > 2.0.x preserves the read position when you get an EFAULT. Nothing I can find > > in the holy manual of posix says what happens if you get an EFAULT on a tcp > > operation, so I think we can do what we like. > > > > In fact, POSIX doesn't distinguish between system calls and library > functions, so according to POSIX it is perfectly valid to throw > SIGSEGV instead of return EFAULT. Personally, I think there should be > a kernel option to turn EFAULT into SIGSEGV, because that's really > what it is -- a segfault where the access happens to be from kernel > space.
I *really* like this idea. I'm now doing some library hacking, and I think that SIGSEGV is just what they deserve. (You can not guarantee -EFAULT if read is emulated using library :-(, you'll get sigsegv instead.)
Pavel
-- I'm really pavel@atrey.karlin.mff.cuni.cz. Pavel Look at http://atrey.karlin.mff.cuni.cz/~pavel/ ;-).
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