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Cisco Bug: CSCup31266 - VMA does not dequeue all data

Last Modified

Nov 16, 2016

Products (1)

  • Cisco Nexus 7000 Series Switches

Known Affected Releases

1

Description (partial)

Symptom:
The basic test that you can look at is
/auto/nvbu-asic20/users/icozzani/voq/2014_04_18/andiamo_vegas/ip_waverider/sim/linked_list/vma_vmr/runs/test_basic_enq_deq_1009288617


It sends 2048 ENQ
sends 2048 DEQ
only 2034 data come back and match when they are compared
The test fails because the end of test check find some queue that are not empty

Conditions:
runll  -tn test_basic_enq_deq -seed 1009288617 -uq -vo "+define+VMA +define+VMA_MEM +define+IPWVR_VOQ_INCLUDE_RTL_COVERAGE +define+AV_MEM28_GBL_BLACKOUT=1  +define+AV_MEM28_GBL_BLACKOUT=1 +dbg=1 +num_rounds=1 +dbg_ref=1"



It sends 2048 ENQ
sends 2048 DEQ
only 2034 data come back and match when they are compared
The test fails because the end of test check find some queue that are not empty

@   35707.845 ns: [MSG] [llq_env_t::end_of_test_checks]     qid(31) empty
@   35707.845 ns: [ERROR] [llq_env_t::end_of_test_checks]     UNDEQUEUED ENTRY qid(4 = 0x4) desc(0xd) nxt_ptr(0x7ca) prob(1) ipg(0)
@   35707.845 ns: [ERROR] [llq_env_t::end_of_test_checks]     UNDEQUEUED ENTRY qid(4 = 0x4) desc(0x10) nxt_ptr(0x7fe) prob(1) ipg(0)
@   35707.845 ns: [ERROR] [llq_env_t::end_of_test_checks]     UNDEQUEUED ENTRY qid(5 = 0x5) desc(0x2f) nxt_ptr(0x7e2) prob(1) ipg(0)
@   35707.845 ns: [ERROR] [llq_env_t::end_of_test_checks]     UNDEQUEUED ENTRY qid(5 = 0x5) desc(0x7f) nxt_ptr(0x7fd) prob(1) ipg(0)
@   35707.845 ns: [ERROR] [llq_env_t::end_of_test_checks]     UNDEQUEUED ENTRY qid(6 = 0x6) desc(0x3e) nxt_ptr(0x7e4) prob(1) ipg(0)
@   35707.845 ns: [ERROR] [llq_env_t::end_of_test_checks]     UNDEQUEUED ENTRY qid(6 = 0x6) desc(0x28) nxt_ptr(0x7ff) prob(1) ipg(0)
@   35707.845 ns: [ERROR] [llq_env_t::end_of_test_checks]     UNDEQUEUED ENTRY qid(7 = 0x7) desc(0x29) nxt_ptr(0x7e6) prob(1) ipg(0)
@   35707.845 ns: [ERROR] [llq_env_t::end_of_test_checks]     UNDEQUEUED ENTRY qid(10 = 0xa) desc(0x67) nxt_ptr(0x7cb) prob(1) ipg(0)
@   35707.845 ns: [ERROR] [llq_env_t::end_of_test_checks]     UNDEQUEUED ENTRY qid(14 = 0xe) desc(0x39) nxt_ptr(0x7e1) prob(1) ipg(0)
@   35707.845 ns: [ERROR] [llq_env_t::end_of_test_checks]     UNDEQUEUED ENTRY qid(14 = 0xe) desc(0x35) nxt_ptr(0x7f9) prob(1) ipg(0)
@   35707.845 ns: [ERROR] [llq_env_t::end_of_test_checks]     UNDEQUEUED ENTRY qid(15 = 0xf) desc(0x1f) nxt_ptr(0x7f7) prob(1) ipg(0)
@   35707.845 ns: [ERROR] [llq_env_t::end_of_test_checks]     UNDEQUEUED ENTRY qid(20 = 0x14) desc(0xe) nxt_ptr(0x76d) prob(1) ipg(0)
@   35707.845 ns: [ERROR] [llq_env_t::end_of_test_checks]     UNDEQUEUED ENTRY qid(21 = 0x15) desc(0x1f) nxt_ptr(0x7e5) prob(1) ipg(0)
@   35707.845 ns: [ERROR] [llq_env_t::end_of_test_checks]     UNDEQUEUED ENTRY qid(27 = 0x1b) desc(0x73) nxt_ptr(0x7f6) prob(1) ipg(0)


Debug RTL.
VMR works fine, to compare the same tests for VMR configuration refer to
/auto/nvbu-asic20/users/icozzani/voq/2014_04_18/andiamo_vegas/ip_waverider/sim/linked_list/vma_vmr/./runs/test_basic_enq_deq_1566170527



The VMA failing regression is at
/auto/nvbu-asic20/users/icozzani/voq/2014_04_18/andiamo_vegas/ip_waverider/sim/linked_list/vma_vmr/vma_0609
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