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intel / iotg_tsn_ref_sw

IOTG Time-Sensitive Networking Reference Software
BSD 3-Clause "New" or "Revised" License
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sendmsg failed - 105: No buffer space available #3

Closed TausR closed 5 years ago

TausR commented 5 years ago

Hi.

I am trying to recreate some the sample-app-taprio setup from demo 3 scenario 3. However, I am experiencing a sendmsg error in the udp_send function: 105: No buffer space available. I am using ubuntu 18.04 with mainline kernel 4.20.17.

When this error occurs the application stops transmitting any other data than priority 5 using tsn_prio5-s1s2s3, tsn_prio3-s1s2s3 for the application configuration.

Do you have any idea why this error occurs? Also let me know if I should provide additional information.

Regards.

Taus

vincentxw commented 5 years ago

Hi there,

For these set of applications, we developed and tested using a Yocto BSP which uses a specific Intel preempt-rt production kernel. This kernel carries some backported patches from ~5.1 mainline kernel. I'd recommend using this kernel , though i understand that may not be possible for every one. The patches we backported were primarily for the ETF and TAPRIO qdisc.

For this specific error, i think it would be the ETF patches that might be missing in your kernel. You may take a look here and see if your existing kernel has all the appropriate commits.