Re: Hitting WARN_ON_ONCE on skb_try_coalesce

2016-08-04 Thread Eric Dumazet
On Thu, 2016-08-04 at 13:48 -0300, Marcelo Ricardo Leitner wrote: > If we pack the struct, we have enough space to save the original > truesize and restore it when dequeing it. > This way the skb won't be charging sender buf too much while sitting on > netem queue and will allow proper accouting o

Re: Hitting WARN_ON_ONCE on skb_try_coalesce

2016-08-04 Thread Marcelo Ricardo Leitner
On Thu, Aug 04, 2016 at 11:07:38AM -0300, Marcelo Ricardo Leitner wrote: > Em 04-08-2016 02:55, Eric Dumazet escreveu: > > On Wed, 2016-08-03 at 20:36 -0300, Marcelo Ricardo Leitner wrote: > > > Hi, > > > > > > I have two namespaces linked with a veth and netem in one of them adding > > > 20ms >

Re: Hitting WARN_ON_ONCE on skb_try_coalesce

2016-08-04 Thread Marcelo Ricardo Leitner
Em 04-08-2016 02:55, Eric Dumazet escreveu: On Wed, 2016-08-03 at 20:36 -0300, Marcelo Ricardo Leitner wrote: Hi, I have two namespaces linked with a veth and netem in one of them adding 20ms latency, and doing netperf from one to another. I'm on commit 7cf210dc267861360cf6968b69bf512475aca985,

Re: Hitting WARN_ON_ONCE on skb_try_coalesce

2016-08-03 Thread Eric Dumazet
On Wed, 2016-08-03 at 20:36 -0300, Marcelo Ricardo Leitner wrote: > Hi, > > I have two namespaces linked with a veth and netem in one of them adding 20ms > latency, and doing netperf from one to another. I'm on commit > 7cf210dc267861360cf6968b69bf512475aca985, net updated today, and I'm hitting >

Hitting WARN_ON_ONCE on skb_try_coalesce

2016-08-03 Thread Marcelo Ricardo Leitner
Hi, I have two namespaces linked with a veth and netem in one of them adding 20ms latency, and doing netperf from one to another. I'm on commit 7cf210dc267861360cf6968b69bf512475aca985, net updated today, and I'm hitting this: [ 1043.024555] WARNING: CPU: 3 PID: 19902 at ./linux/net/core/skbu