Description

This article explains the meaning of the following logs: 

  • MQCHIP(*) MALLOC DPage Free-bits Memory parity error

  • MQCHIP(*) MALLOC Two or more DPage Free-bits Memory parity errors

Symptoms

Logs such as these may be seen:

Feb 26 22:06:14  MX960_router_RE0 fpc7 MQCHIP(0) MALLOC DPage Free-bits Memory parity error
Feb 26 22:08:12  MX960_router_RE0 fpc7 MQCHIP(0) MALLOC DPage Free-bits Memory parity error
Feb 26 22:08:19  MX960_router_RE0 fpc7 MQCHIP(0) MALLOC DPage Free-bits Memory parity error
Feb 26 22:10:44  MX960_router_RE0 fpc7 MQCHIP(0) MALLOC Two or more DPage Free-bits Memory parity errors
Feb 26 22:10:44  MX960_router_RE0 fpc7 MQCHIP(0) MALLOC DPage Free-bits Memory parity error
Feb 26 22:10:50  MX960_router_RE0 fpc7 MQCHIP(0) MALLOC Two or more DPage Free-bits Memory parity errors
Feb 26 22:10:50  MX960_router_RE0 fpc7 MQCHIP(0) MALLOC DPage Free-bits Memory parity error
Feb 26 22:12:33  MX960_router_RE0 fpc7 MQCHIP(0) MALLOC Two or more DPage Free-bits Memory parity errors
Feb 26 22:12:33  MX960_router_RE0 fpc7 MQCHIP(0) MALLOC DPage Free-bits Memory parity error
Feb 26 22:12:57  MX960_router_RE0 fpc7 MQCHIP(0) MALLOC DPage Free-bits Memory parity error
Feb 26 22:13:05  MX960_router_RE0 fpc7 MQCHIP(0) MALLOC DPage Free-bits Memory parity error
Feb 26 22:13:54  MX960_router_RE0 fpc7 MQCHIP(0) MALLOC Two or more DPage Free-bits Memory parity errors
Feb 26 22:13:54  MX960_router_RE0 fpc7 MQCHIP(0) MALLOC DPage Free-bits Memory parity error
Feb 26 22:13:56  MX960_router_RE0 fpc7 MQCHIP(0) MALLOC DPage Free-bits Memory parity error
Feb 26 22:14:09  MX960_router_RE0 fpc7 MQCHIP(0) MALLOC Two or more DPage Free-bits Memory parity errors
Feb 26 22:14:09  MX960_router_RE0 fpc7 MQCHIP(0) MALLOC DPage Free-bits Memory parity error
Feb 26 22:15:07  MX960_router_RE0 fpc7 MQCHIP(0) MALLOC DPage Free-bits Memory parity error
Feb 26 22:15:12  MX960_router_RE0 fpc7 MQCHIP(0) MALLOC DPage Free-bits Memory parity error
Feb 26 22:15:55  MX960_router_RE0 fpc7 MQCHIP(0) MALLOC Two or more DPage Free-bits Memory parity errors

Solution

These errors indicate that one of the MQCHIP's MALLOC blocks had a memory parity error in the Free-bits of a DRAM page. If two or more such errors occur, then the "Two or more DPage Free-bits Memory parity errors" log is seen. 

Most often this is a transient hardware issue. 

  • If this is a one-time event, the FPC may be monitored and no further action is required. 

  • If these logs are recurring, taking the FPC offline and bringing it online is recommended to clear the issue. 

  • If these logs are seen again after restart of the FPC, contact Support for further assistance. 

Modification History

2022-10-21 Mark KB as public