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From: Hangbin Liu <liuhangbin@gmail.com>
To: Jesper Dangaard Brouer <brouer@redhat.com>
Cc: bpf@vger.kernel.org, netdev@vger.kernel.org,
	"Toke Høiland-Jørgensen" <toke@redhat.com>,
	"Jiri Benc" <jbenc@redhat.com>,
	"Eelco Chaudron" <echaudro@redhat.com>,
	ast@kernel.org, "Daniel Borkmann" <daniel@iogearbox.net>,
	"Lorenzo Bianconi" <lorenzo.bianconi@redhat.com>,
	"David Ahern" <dsahern@gmail.com>,
	"Andrii Nakryiko" <andrii.nakryiko@gmail.com>,
	"Alexei Starovoitov" <alexei.starovoitov@gmail.com>,
	"John Fastabend" <john.fastabend@gmail.com>,
	"Maciej Fijalkowski" <maciej.fijalkowski@intel.com>,
	"Björn Töpel" <bjorn.topel@gmail.com>,
	"Martin KaFai Lau" <kafai@fb.com>
Subject: Re: [PATCHv10 bpf-next 2/4] xdp: extend xdp_redirect_map with broadcast support
Date: Mon, 26 Apr 2021 19:54:27 +0800	[thread overview]
Message-ID: <20210426115427.GV3465@Leo-laptop-t470s> (raw)
In-Reply-To: <20210426134105.4706af0b@carbon>

On Mon, Apr 26, 2021 at 01:41:05PM +0200, Jesper Dangaard Brouer wrote:
> > > While running:
> > >  $ sudo ./xdp_redirect_map_multi -F i40e2 i40e2
> > >  Get interfaces 7 7
> > >  libbpf: elf: skipping unrecognized data section(23) .eh_frame
> > >  libbpf: elf: skipping relo section(24) .rel.eh_frame for section(23) .eh_frame
> > >  Forwarding   10140845 pkt/s
> > >  Forwarding   11767042 pkt/s
> > >  Forwarding   11783437 pkt/s
> > >  Forwarding   11767331 pkt/s
> > > 
> > > When starting:  sudo ./xdp_monitor --stats  
> > 
> > That seems the same issue I reported previously in our meeting.
> > https://bugzilla.redhat.com/show_bug.cgi?id=1906820#c4
> > 
> > I only saw it 3 times and can't reproduce it easily.
> > 
> > Do you have any idea where is the root cause?
> 
> All the information you need to find the root-cause is listed below.
> I have even decoded where in the code it happens, and also include the
> code with line-numbering and pointed to the line the crash happens in,
> I don't think it is possible for me to be more specific and help further.

Thanks, I mixed this issue with the one I got previously, which I haven't
figure out yet. For this one, I have sent a propose in another reply (that
fix it in trace point event). Would you please help review.

Hangbin

  reply	other threads:[~2021-04-26 11:54 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-23  2:00 [PATCHv10 bpf-next 0/4] xdp: extend xdp_redirect_map with broadcast support Hangbin Liu
2021-04-23  2:00 ` [PATCHv10 bpf-next 1/4] bpf: run devmap xdp_prog on flush instead of bulk enqueue Hangbin Liu
2021-04-23  2:00 ` [PATCHv10 bpf-next 2/4] xdp: extend xdp_redirect_map with broadcast support Hangbin Liu
2021-04-26  9:53   ` Jesper Dangaard Brouer
2021-04-26 10:47     ` Hangbin Liu
2021-04-26 10:54       ` Hangbin Liu
2021-04-26 11:41       ` Jesper Dangaard Brouer
2021-04-26 11:54         ` Hangbin Liu [this message]
2021-04-26 11:40     ` Hangbin Liu
2021-04-26 11:47       ` Hangbin Liu
2021-04-26 13:00         ` Toke Høiland-Jørgensen
2021-04-27  8:40         ` Jesper Dangaard Brouer
2021-04-23  2:00 ` [PATCHv10 bpf-next 3/4] sample/bpf: add xdp_redirect_map_multi for redirect_map broadcast test Hangbin Liu
2021-04-23  2:00 ` [PATCHv10 bpf-next 4/4] selftests/bpf: add xdp_redirect_multi test Hangbin Liu

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