On Wed, Apr 17, 2019 at 02:17:23AM +0200, Florian Westphal wrote: > setting net.netfilter.nf_conntrack_timestamp=1 breaks xmit with fq > scheduler. skb->tstamp might be "refreshed" using ktime_get_real(), > but fq expects CLOCK_MONOTONIC. > > This patch removes all places in netfilter that check/set skb->tstamp: > > 1. To fix the bogus "start" time seen with conntrack timestamping for > outgoing packets, never use skb->tstamp and always use current time. > 2. In nfqueue and nflog, only use skb->tstamp for incoming packets, > as determined by current hook (prerouting, input, forward). > 3. xt_time has to use system clock as well rather than skb->tstamp. > We could still use skb->tstamp for prerouting/input/foward, but > I see no advantage to make this conditional. Applied, thanks Florian.