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R1603 Reboots after issuing "Show ISDN status"

I experienced reboot of R1603 router once I issue "Show ISDN status" command. The problem is not intermittent but consistent as it happens on 2 routers (both are R1603) with IOS Version 12.0(3)T. Other "Show ISDN" commands such as "Show ISDN active", "Show ISDN history" do not cause any reboot.

Attached is the "Sh version". Any clue?

Router#sh vers

Cisco Internetwork Operating System Software

IOS (tm) 1600 Software (C1600-Y-M), Version 12.2(10b), RELEASE SOFTWARE (fc1)

Copyright (c) 1986-2002 by cisco Systems, Inc.

Compiled Fri 12-Jul-02 03:08 by pwade

Image text-base: 0x02005000, data-base: 0x0264E1CC

ROM: System Bootstrap, Version 12.0(3)T, RELEASE SOFTWARE (fc1)

ROM: 1600 Software (C1600-RBOOT-R), Version 12.0(3)T, RELEASE SOFTWARE (fc1)

ASIA_Johor uptime is 1 minute

System returned to ROM by bus error at PC 0x23CD256, address 0x118

System image file is "flash:c1600-y-mz.122-10b.bin"

cisco 1603 (68360) processor (revision C) with 9728K/512K bytes of memory.

Processor board ID 29391692, with hardware revision 00000004

Bridging software.

X.25 software, Version 3.0.0.

Basic Rate ISDN software, Version 1.1.

1 Ethernet/IEEE 802.3 interface(s)

1 Serial(sync/async) network interface(s)

1 ISDN Basic Rate interface(s)

System/IO memory with parity disabled

8192K bytes of DRAM onboard 2048K bytes of DRAM on SIMM

System running from RAM

7K bytes of non-volatile configuration memory.

4096K bytes of processor board PCMCIA flash (Read/Write)

Configuration register is 0x2102

  • Other Network Infrastructure Subjects

Re: R1603 Reboots after issuing "Show ISDN status"

Checked the bug toolkit > nothing

Checked the sw-advisories > bingo

You are running an image from which Cisco has said that is contains serious defects. When they say this, you better believe it. Please upgrade to a newer release. Advised replacement: 12.2-10d