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Date: Wed, 12 Mar 2008 17:40:01 -0600 From: Paul Fulghum <paulkf@...rogate.com> To: rupesh.sugathan@...il.com CC: Alan Cox <alan@...rguk.ukuu.org.uk>, akpm@...ux-foundation.org, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org> Subject: Re: + n_tty-loss-of-sync-following-a-buffer-overflow.patch added to -mm tree Rupesh Sugathan wrote: > I have another suggestion to this subject. When the buffer oveflows in > icaonon mode, it would be *best* if the application either gets a > complete line or does not get it at all. On a buffer overflow, it would > be good that the n_tty discard the whole line data in the buffer (part > of which has overflown) and make more room in the buffer. > > Does it make sense to any of you? I don't know if there is a standard behavior under these conditions so it is hard to argue it should be handled a particular way other than leaving the device in a consistent and recoverable state. I doubt there would be support for making such changes. Making that decision in the kernel and having an application depend on that non-portable behavior does not make sense. Given that a n_tty receive overflow is not possible in the current kernel (though data can still be lost elsewhere), I doubt even my patch merits inclusion. -- Paul -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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