From mboxrd@z Thu Jan 1 00:00:00 1970 From: Arnaldo Carvalho de Melo Date: Tue, 21 Aug 2007 14:58:27 +0000 Subject: Re: [PATCH 13/15] [DCCP] options: convert Message-Id: <20070821145827.GE10392@ghostprotocols.net> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: dccp@vger.kernel.org Em Tue, Aug 21, 2007 at 02:25:27PM +0100, Gerrit Renker escreveu: > Sorry this one has a bug also - it compresses a signed 64 bit quantity into a 32-bit unsigned > value. When re-interpreted as microsecond value (in dccp_sample_rtt), this gives values which > are way too small. > > Maybe we should keep the dccp_epoch thing, but now with ktime_t, so as to avoid large microsecond values? Argh, it seems so :-( > In any case, the RTT sampling is not usable - it constantly produces overflow, since the timestamp > option value is too small. Reading code and RFC now... - Arnaldo