Guest

Preview Tool

Cisco Bug: CSCus85411 - More correctable Typhoon instruction memory ECC errors not repaired

Last Modified

Aug 24, 2017

Products (1)

  • Cisco ASR 9000 Series Aggregation Services Routers

Known Affected Releases

4.2.1.BASE 4.3.1.BASE 5.1.0.BASE 5.2.0.BASE 5.3.0.BASE

Description (partial)

Symptom:
A single-bit ECC error in NP instruction memory was not repaired properly and thus continues to be detected and reported repeatedly.     Here is an example:

prm_server_ty[298]: %PLATFORM-NP-3-ECC : prm_ser_check: Single-bit ECC error detected: NP 7, block 0x18 (MDF), offset 1, memid 51, name INSTRUCTION_MEM1, addr 0x0000004d, bit 35, ext info 0x00000001 0xffffffff 0xffffffff 0xffffffff, action 0 (Fix)  

There are no functional side effects, but the error will continue to be detected and reported over and over.

Conditions:
This problem is specific to Typhoon linecards.  There is no specific trigger for the underlying error as it is a rare and random hardware occurrence.

Related Community Discussions

ASR9K: Typhoon LC で NP の Instruction Memory(ID:42,44,47,52) の SBE が修正されない
2015年7月25日(初版) TAC SR Collection 主な問題 Typhoon LC 上の NP(Network Processor) | で使用されている特定の Instruction Memory (ID:42,44,47,52)  で発生した Single Bit Error(SBE) が正しく修正されません。 <問題の確認方法> 同一 NP 上の同一メモリにて、下記例のようなログが 定期的に 出力されることを確認。 prm_server_ty[xxx]: % PLATFORM-NP-3-ECC : prm_ser_check: Single-bit ECC error detected : NP 3, block 0x17 (MDF) , offset 14, memid 47 , name INSTRUCTION_MEM 14, addr 0x0000003e, bit 16, ext info 0x00000007 0xffffffff 0xffffffff 0xffffffff, action 0 (Fix)    ※メッセージ中の name が INSTRUCTION_MEM ...
Latest activity: Jul 26, 2015
Bug details contain sensitive information and therefore require a Cisco.com account to be viewed.

Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
  • Severity
  • Known Fixed Releases
  • Related Community Discussions
  • Number of Related Support Cases
Bug information is viewable for customers and partners who have a service contract. Registered users can view up to 200 bugs per month without a service contract.