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Bus Error In Cisco Router


by Santosh January 31, 2011 at 15:16 Reply Please advise what update you waiting for? This indicates that it is a Cisco IOS Software problem. What have we established so far? The system returned: (22) Invalid argument The remote host or network may be down.

Refer to Versatile Interface Processor Crash Reason Codes to translate this number into something meaningful. Cause is unknown. The R in (R4700) indicates a RISC processor. iomem corresponds to input/output (I/O) memory, which means different parts for different platforms.

System Returned To Rom By Bus Error At Pc 0x0 Address 0x0

ndcbbnpendc0103#sh region Region Manager: Start End Size(b) Class Media Name 0x08000000 0x0BFFFFFF 67108864 Iomem R/W iomem 0x08B69D40 0x08C77813 1104596 Criti R/W iomem:Critical I/O 0x40000000 0x4BFFFFFF 201326592 Local R/W main 0x40101040 0x42D8FFFF If a new router hasbeen installed, or if the router has been moved from one location to another,the memory chips may have become loose. Obviously it is safe to assume that an IOS upgrade should rectify the problem.  But in production life is not that simple or quick.

  1. Troubleshooting Bus Error Crashes on 68000 Processor Platforms With the address accessed by the router when the bus error occurred, use the show region command to determine the memory location the
  2. JE> > I'd guess IOS bug...
  3. On the other hand, if the address falls within one of the ranges in the show region output, it means that the router accessed a valid memory address, but the hardware

As it happens a clients Cisco-6509 switch fell over yesterday. Router platforms that have 68000 processors include: Cisco 1000 Series Routers Cisco 1600 Series Routers Cisco 2500 Series Routers Cisco 4000 Series Routers Route Processor (RP) Modules on Cisco 7000 (RP) americanmcneil (TechnicalUser) (OP) 4 Mar 08 15:29 I have a Cisco 7200 VXR that has recently started to crash randomly. Last Reload Reason Address Error At Pc The code 1010/1111 is not really relevant (the code depends on the invalid instruction you tried to execute).

Register now! System Returned To Rom By Address Error At Pc I am going to look into both. Not wry often but often enough to cause me concern. Join UsClose Jump to content Sign In Create Account Sadikhov IT Forums View New Content Sadikhov.com Forums Members Calendar Blogs Chat More Sadikhov IT Certification forums → CERTIFICATION

Rgrds, Skybaba 0 Back to top #7 rino rino Member Members 95 posts Gender:Male Location:Maha Bharatham Posted 16 December 2008 - 04:24 PM Same thing happened to one of our gateways System Was Restarted By Bus Error At Pc Compiled Fri 23-Jun-00 16:02 by richv Image text-base: 0x60010908, data-base: 0x60D96000 ROM: System Bootstrap, Version 12.0(19990806:174725), DEVELOPMENT SOFTWARE BOOTFLASH: RSP Software (RSP-BOOT-M), Version 12.0(9)S, EARLY DEPLOYMENT RELEASE SOFTWARE (fc1) Router uptime I would like to give you my 6509 crash logs which happened recently, can you please help me to understand it. ------------------------------- *Jun 27 18:40:53: %FABRIC-SP-5-CLEAR_BLOCK: Clear block option is off If you are uncertain which bug ID may match or which Cisco IOS software version contains the fix for the problem, upgrading your Cisco IOS software to the latest version in

System Returned To Rom By Address Error At Pc

Related Information Troubleshooting Router Crashes Technical Support - Cisco Systems Contributed by Cisco Engineers Was this Document Helpful? On other RISC platforms (Cisco 3600, 4500, and so forth), you get a SegV exception when jumping to an illegal PC, not a bus error. System Returned To Rom By Bus Error At Pc 0x0 Address 0x0 If you cannot access the Service Request tool, you can attach the relevant information to your service request by sending it to [email protected] with your case number in the subject line System Returned To Rom By Error - A System Error If the address falls within a virtual address range, replace the hardware corresponding to this range.

It is recommended that you read Troubleshooting Router Crashes before you proceed with this document. Where to from here? To illustrate this, let's take the following example: System was restarted by bus error at PC 0x60104864, address 0xC Using the show region command output below, you can verify that 0xC signal number, code, and router uptime information. Bus Error Linux

With the address accessed by the router when the bus error occurred, the command "show region" could be used to determine the memory location the address corresponds to. Look at the highlighted lines. Scott "Thrown to the Wolves" McNeilwww.epproach.net RE: Bus error crashes, need help interpreting... show tech-support This command first appeared in Cisco IOS Software Release 11.2.

Username Forum Password I've forgotten my password Remember me This is not recommended for shared computers Sign in anonymously Don't add me to the active users list Privacy Policy Routing-Bits Filling Bus Error (load) Exception The errors that cause crashes are typically detected by processor hardware, which automatically branches to special error handling code in the ROM monitor. It is recommended that you monitor the router for 24 hours to be sure that the router continues to function without experiencing the issue again.

Router platforms that have RISC processors include: Cisco 3600 Series Routers Cisco 4500 Series Routers Cisco 4700 Series Routers Route Switch Processor (RSP) Modules on Cisco 7500 Series and Cisco 7000

Router#show region Region Manager: Start End Size(b) Class Media Name 0x40000000 0x40001FFF 8192 Iomem REG qa 0x40002000 0x401FFFFF 2088960 Iomem R/W memd 0x48000000 0x48001FFF 8192 Iomem REG QA:writethru 0x50002000 0x501FFFFF 2088960 IMPORTANT: If the router is reloaded after the crash (for example, through power-cycle or the reload command), this information will be lost so try to collect it before reloading! rom monitor The router might end up in ROM monitor after a crash when its config-register setting ends with 0. How To Solve Bus Error In Linux Illegal Instruction This error is most often software-related.

I have posted the relevant portion here:

ndcbbnpendc0103#sh stack --omitted--
Mar  9 17:01:58: %DIAG-SP-6-BYPASS: Module 4: Diagnostics is bypassed Mar  9 17:01:58: %OIR-SP-6-INSCARD: Card inserted in slot 4, interfaces are now Reload If the show version command output shows restarted by reload or system returned to ROM by reload, you can infer that a user rebooted the router manually with the reload Thisis because, bug fixes are incorporated into software versions which have not beenregression tested. To use Cisco CLI Analyzer, you must be a registered customer, be logged in, and have JavaScript enabled.

Most often, a faulty CPU board causes this type of crash. In this particular case, the parity error is not handled properly and is being masked by a bus error. Usually the first thing I would do is to see the reason for the reboot with a "sh version". Still using the previous example, System restarted by bus error at PC 0x30EE546, address 0xBB4C4, this bus error crash comes from a Cisco 2500 router with the show region output.

All rights reserved. At the console prompt, this error message can also be seen during a bus error: *** System received a Bus Error exception *** signal= 0xa, code= 0x8, context= 0x608c3a50 PC = Information to collect if you open a TAC Case If you still need assistance after you follow the troubleshooting steps that this document lists, and want to create a service request From the output below it is clear that ‘0x0' does not any memory region.

For higher-end platforms such as the 7200 or 7500 routers, reseat the processor, VIP, port adapters, or line card that is reloading due to a bus error exception. crashinfo The crashinfo file is a collection of useful information related to the current crash, stored in bootflash or flash memory. Scott "Thrown to the Wolves" McNeilwww.epproach.net RE: Bus error crashes, need help interpreting... 2 burtsbees (Programmer) 4 Mar 08 20:50 The following hyperlinks are headings for the supported commands that yousubmitted. Please try the request again.

Give serious consideration to installing the most recent maintenance release of the Cisco IOS Software train that you are currently running. The second thing to do is determine the type of processor in the router. Workaround: There is no known workaround at this time.NRP2 crashes at %ALIGN-1-FATAL:Illegal access to a low addressSymptom: A Cisco 6400 NRP2 , upgraded to c6400r2sp-g4p5-mz.123-9 , may experience a condition where This problem can also occur due to a corrupt Cisco IOS Software image (see the Troubleshoot section for details).

All rights reserved. There is no workaround.c7200: Memory corruption in processor pool in 12.2(8)T4Symptoms: A software-forced reload may occur on a Cisco 7200 series, and the console output may display memory corruption dumps. Based on the address accessed by the router when the 'Bus Error' occurred,use the "show region" command to determine the memory location to whichthe address corresponds. Cache Error Exception This type of crash occurs when the router detects bad parity.