Cisco CISCO876-SEC-I-K9 Configuration Guide - Page 185
stack, context, frame, sysret, meminfo
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Appendix C ROM Monitor Debug Commands The following are ROM monitor debugging commands: • stack or k-Produces a stack trace; for example: rommon 6> stack Stack trace: PC = 0x801111b0 Frame 00: FP = 0x80005ea8 Frame 01: FP = 0x80005eb4 Frame 02: FP = 0x80005f74 Frame 03: FP = 0x80005f9c Frame 04: FP = 0x80005fac Frame 05: FP = 0x80005fc4 PC = 0x801111b0 PC = 0x80113694 PC = 0x8010eb44 PC = 0x80008118 PC = 0x80008064 PC = 0xfff03d70 • context-Displays processor context; for example: rommon 7> context CPU context of the most recent exception: PC = 0x801111b0 MSR = 0x00009032 CR = 0x53000035 CTR = 0x801065e4 XER = 0xa0006d36 DAR = 0xffffffff DEC = 0xffffffff TBU = 0xffffffff TBL = 0xffffffff R0 = 0x00000000 R1 = 0x80005ea8 R2 = 0xffffffff R4 = 0x8fab0d76 R5 = 0x80657d00 R6 = 0x80570000 R8 = 0x00000000 R9 = 0x80570000 R10 = 0x0000954c R12 = 0x00000080 R13 = 0xffffffff R14 = 0xffffffff R16 = 0xffffffff R17 = 0xffffffff R18 = 0xffffffff R20 = 0xffffffff R21 = 0xffffffff R22 = 0xffffffff R24 = 0xffffffff R25 = 0xffffffff R26 = 0xffffffff R28 = 0xffffffff R29 = 0xffffffff R30 = 0xffffffff LR = 0x80113694 DSISR = 0xffffffff IMMR = 0xffffffff R3 = 0x00000000 R7 = 0x80570000 R11 = 0x00000000 R15 = 0xffffffff R19 = 0xffffffff R23 = 0xffffffff R27 = 0xffffffff R31 = 0xffffffff • frame-Displays an individual stack frame. • sysret-Displays return information from the last booted system image. This information includes the reason for terminating the image, a stack dump of up to eight frames, and, if an exception is involved, the address where the exception occurred; for example: rommon 8> sysret System Return Info: count: 19, reason: user break pc:0x801111b0, error address: 0x801111b0 Stack Trace: FP: 0x80005ea8, PC: 0x801111b0 FP: 0x80005eb4, PC: 0x80113694 FP: 0x80005f74, PC: 0x8010eb44 FP: 0x80005f9c, PC: 0x80008118 FP: 0x80005fac, PC: 0x80008064 FP: 0x80005fc4, PC: 0xfff03d70 FP: 0x80005ffc, PC: 0x00000000 FP: 0x00000000, PC: 0x00000000 • meminfo-Displays size in bytes, starting address, available range of main memory, the starting point and size of packet memory, and size of NVRAM; for example: rommon 9> meminfo Main memory size: 40 MB. Available main memory starts at 0x10000, size 40896KB IO (packet) memory size: 5 percent of main memory. NVRAM size: 32KB OL-5332-01 Cisco 850 Series and Cisco 870 Series Access Routers Software Configuration Guide C-9