[vpp-dev] Interface up Stuck for Mellanox CX-4 VF with VPP master and DPDK 18.05 on aarch64

[Sirshak Das]

Hi all,

I am facing an issue with my VPP installation on Qualcomm Centriq with
Mellanox MT27700 [CX-4] card. The MOFED versions I have is 4.3-3.0.2.1
and its built from source. Kernel: 4.15.0-24-generic OS: 18.04 LTS.

When I use this command:

vpp# set interface state FiftySixGigabitEthernet1/0/1 up


It basically gets stuck. Using perf I was able to find that its looping
at this portion of the code

while (*vlib_worker_threads->wait_at_barrier)
;
which is in :

static inline void
vlib_worker_thread_barrier_check (void)


I applied the following patch i.e reverting back to 18.02.2:
-DPDK_VERSION ?= 18.05
+DPDK_VERSION ?= 18.02.2
This works.

I would greatly appreciate if somebody can point me in the
right direction for debugging.


Thank you
Sirshak Das

++
Sirshak Das

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Re: [vpp-dev] Interface up Stuck for Mellanox CX-4 VF with VPP master and DPDK 18.05 on aarch64

[Damjan Marion via Lists.Fd.Io]

Capturing backtrace for each thread might be  good start.

Thanks!

-- 
Damjan

> On 3 Jul 2018, at 20:03, Sirshak Das  wrote:
> 
> Hi all,
>  
> I am facing an issue with my VPP installation on Qualcomm Centriq with
> Mellanox MT27700 [CX-4] card. The MOFED versions I have is 4.3-3.0.2.1
> and its built from source. Kernel: 4.15.0-24-generic OS: 18.04 LTS.
>  
> When I use this command:
>  
> vpp# set interface state FiftySixGigabitEthernet1/0/1 up
>  
>  
> It basically gets stuck. Using perf I was able to find that its looping
> at this portion of the code
>  
> while (*vlib_worker_threads->wait_at_barrier)
> ;
> which is in :
>  
> static inline void
> vlib_worker_thread_barrier_check (void)
>  
>  
> I applied the following patch i.e reverting back to 18.02.2:
> -DPDK_VERSION ?= 18.05
> +DPDK_VERSION ?= 18.02.2
> This works.
>  
> I would greatly appreciate if somebody can point me in the
> right direction for debugging.
>  
>  
> Thank you
> Sirshak Das
>  
> ++
> Sirshak Das
>  
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> View/Reply Online (#9774): https://lists.fd.io/g/vpp-dev/message/9774 
> 
> Mute This Topic: https://lists.fd.io/mt/23026304/675642 
> 
> Group Owner: vpp-dev+ow...@lists.fd.io 
> Unsubscribe: https://lists.fd.io/g/vpp-dev/unsub 
>   [dmar...@me.com 
> ]
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