* [dpdk-dev] A bug in DPDK ENA driver
@ 2018-06-19 18:23 Dasha Kolistratova
2018-06-20 11:26 ` Ferruh Yigit
0 siblings, 1 reply; 2+ messages in thread
From: Dasha Kolistratova @ 2018-06-19 18:23 UTC (permalink / raw)
To: dev
Hi! I’m trying to launch NFF-GO (https://github.com/intel-go/nff-go)
on AWS instances and faced a problem (Program received signal SIGFPE,
Arithmetic exception.) which was caused by:
0x00000000006f703c in ena_rss_init_default (adapter=0x7fffef399200)
at /home/ec2-user/projects/src/github.com/intel-go/nff-go/dpdk/dpdk-18.02/drivers/net/ena/ena_ethdev.c:571
571 val = i % nb_rx_queues;
nb_rx_queues is 0, cause our application does not receive and we do
not use rx queues. Could you please fix it by wrapping with 0 check
(and making val 0 if 0 queues) before division?
Best regards,
Kolistratova Daria
^ permalink raw reply [flat|nested] 2+ messages in thread* Re: [dpdk-dev] A bug in DPDK ENA driver
2018-06-19 18:23 [dpdk-dev] A bug in DPDK ENA driver Dasha Kolistratova
@ 2018-06-20 11:26 ` Ferruh Yigit
0 siblings, 0 replies; 2+ messages in thread
From: Ferruh Yigit @ 2018-06-20 11:26 UTC (permalink / raw)
To: Dasha Kolistratova, dev
Cc: Marcin Wojtas, Michal Krawczyk, Guy Tzalik, Evgeny Schemeilin
On 6/19/2018 7:23 PM, Dasha Kolistratova wrote:
> Hi! I’m trying to launch NFF-GO (https://github.com/intel-go/nff-go)
> on AWS instances and faced a problem (Program received signal SIGFPE,
> Arithmetic exception.) which was caused by:
>
>
> 0x00000000006f703c in ena_rss_init_default (adapter=0x7fffef399200)
>
> at /home/ec2-user/projects/src/github.com/intel-go/nff-go/dpdk/dpdk-18.02/drivers/net/ena/ena_ethdev.c:571
>
> 571 val = i % nb_rx_queues;
>
>
>
> nb_rx_queues is 0, cause our application does not receive and we do
> not use rx queues. Could you please fix it by wrapping with 0 check
> (and making val 0 if 0 queues) before division?
cc'ed ena maintainers.
Also can you please submit a defect for this:
https://bugs.dpdk.org/
Thanks,
ferruh
^ permalink raw reply [flat|nested] 2+ messages in thread
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2018-06-19 18:23 [dpdk-dev] A bug in DPDK ENA driver Dasha Kolistratova
2018-06-20 11:26 ` Ferruh Yigit
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