Message ID | 1460585918.10638.42.camel@edumazet-glaptop3.roam.corp.google.com |
---|---|
State | Accepted, archived |
Delegated to: | stephen hemminger |
Headers | show |
On Wed, 13 Apr 2016 15:18:38 -0700 Eric Dumazet <eric.dumazet@gmail.com> wrote: > From: Eric Dumazet <edumazet@google.com> > > Kernel sets info->tcpi_min_rtt to ~0U when no RTT sample was ever > taken for the session, thus min_rtt is unknown. > > Signed-off-by: Eric Dumazet <edumazet@google.com> > --- > misc/ss.c | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) > Applied
diff --git a/misc/ss.c b/misc/ss.c index 38cf331..51ff5ac 100644 --- a/misc/ss.c +++ b/misc/ss.c @@ -2018,7 +2018,8 @@ static void tcp_show_info(const struct nlmsghdr *nlh, struct inet_diag_msg *r, s.segs_out = info->tcpi_segs_out; s.segs_in = info->tcpi_segs_in; s.not_sent = info->tcpi_notsent_bytes; - s.min_rtt = (double) info->tcpi_min_rtt / 1000; + if (info->tcpi_min_rtt && info->tcpi_min_rtt != ~0U) + s.min_rtt = (double) info->tcpi_min_rtt / 1000; tcp_stats_print(&s); free(s.dctcp); }