Arista EOS: %QOS-3-POLICY_HW_RESOURCE_FULL

When applying Qos policy under port-channel, the system doesn't accept it. 

wa463.bug228215.16:12:21(config-if-Po20)#service-policy type qos input SPTest
% Error: Cannot apply service-policy to Port-Channel20 ()

And show logg displays an error msg:
Mar  8 16:01:25 wa463 SandAcl: %QOS-3-POLICY_HW_RESOURCE_FULL: Insufficient hardware resources to program the input policy-map SPTest.

It is because the TCAM is running out. One possible reason is PDP (per-port data policy) which uses up quite some TCAM. So try the EOS-Int image. 

wa462.bug228215.16:17:04#sh platform jericho acl tcam summary
The total number of TCAM lines per Jericho bank is 2048

========================================================
Jericho0:
========================================================
   Bank   Used           Used %          Used By
      0   2046               99         IP RACLs
      1   1554               75         IP RACLs
   2, 3   2048              100       IPv6 RACLs
   4, 5   2048              100       IPv6 RACLs
   6, 7   2048              100       IPv6 RACLs
   8, 9   2046               99       IPv6 RACLs
  10,11    210               10       IPv6 RACLs
     14     79               61 Pdp IP, Pdp Tunnel, Pdp NonIp, Pdp IPv6, Pdp Mpls

Total Number of TCAM lines used is: 20479

After changing to INT image, this issue is gone. 

wa462.bug228215.16:28:09(config)#int po20
wa462.bug228215.16:28:11(config-if-Po20)#service-policy type qos input SPTest
wa462.bug228215.16:28:13(config-if-Po20)#show ver
Arista DCS-7280CR-48-F
Hardware version:    11.01
Serial number:       JPE16473148
System MAC address:  444c.a897.8c51

Software image version: 4.20.0F-INT-7767198.bloomingtonrel (engineering build)