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Cisco Bug: CSCuq37265 - Parity error correction failure in TM memory on Typhoon linecards

Last Modified

May 21, 2018

Products (1)

  • Cisco ASR 9000 Series Aggregation Services Routers

Known Affected Releases

4.3.2.BASE

Description (partial)

Symptom:
Parity error correction failed on NP TM (A9K-2x100GE-TR).  This issue is not specific to the 100G linecard.

=syslog=
LC/0/1/CPU0:Aug 11 08:50:43.878 JST: prm_server_ty[297]: %PLATFORM-NP-3-ECC : prm_ser_check: Unable to repair Parity error on NP 0, block 0x24 (TM_QC), offset 50, memid 118, name QD_CCH_SHP_PROF_INDX_L, addr 0x000000da, bit 2147483648, ext info 0xffffffff 0xffffffff 0xffffffff 0xffffffff, action 0 (Fix)  
LC/0/1/CPU0:Aug 11 08:50:43.883 JST: pfm_node_lc[287]: %PLATFORM-NP-2-NON_RECOVERABLE_SOFT_ERROR : Set|prm_server_ty[168019]|Network Processor Unit(0x1008000)| A non-recoverable soft error has been detected on NP0.  The linecard will be rebooted.

Conditions:
This repair failure can occur whenever an ECC or parity is detected in block 0x24 (TM_QC) with an offset of 46 or 50.   Note that the bug is in the repair of the faulty memory location.    This fix does not address the underlying ECC/parity which is most likely a rare hardware occurrence.
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