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Cisco uBR10012 Universal Broadband Router Troubleshooting Guide
OL-1237-01
Chapter 3 Troubleshooting PRE-1 Modules
Troubleshooting Common System Problems
Spurious Memory Accesses
A spurious memory access occurs when a Cisco IOS software process attempts to access memory in the
lowest 16 KB region of memory, which is a restricted location. Typically, such errors display a system
error message similar to the following:
%ALIGN-3-SPURIOUS: Spurious memory access made at 0x60968C44 reading 0x0
%ALIGN-3-TRACE: -Traceback= 60968C44 60269808 602389D8 00000000 00000000 00000000
00000000 00000000
Where possible, the Cisco IOS software handles spurious memory accesses by returning a value of zero
to the calling routine, and then displaying the above error message. If this is not possible, the router
crashes with a Segment Violation (SegV) error. In either case, the cause of the error is almost always a
bug in the Cisco IOS software.
If possible, upgrade to the latest release of the Cisco IOS software. If the bug still exists on the router,
see the section Spurious Accesses in the document Troubleshooting Spurious Accesses, Alignment
Errors, and Spurious Interrupts, at the following URL:
http://www.cisco.com/en/US/products/sw/iosswrel/ps1828/products_tech_note09186a00800a65d1.sht
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