[Crash-utility] Re: crash 4.0.9 on x86 is crashing

Hi All, I downloaded and built crash 4.0.9 for Intel X86 linux machine. I'm trying to debug kdump-generated vmcore, taken using the "crash kernel". Kernel: 2.6.27.34 Main kernel argument: crashkernel=64M@16M Main kernel loaded at 2M. The problem: ./crash <vmlinux> <vmcore> behaves kinda strange... it gets stuck in the following loop of function calls, during reading totalram_pages symbol: get_symbol_data("totalram_pages") -> readmem("totalram_pages") ->kvtop -> x86_kvtop ("pgd page") ->readmem ("pgd page") ->kvtop -> x86_kvtop("pgd page") -> readmem("pgd page") and eventually crashes, probably when recursion reaches stack limit. Why would such a situation happen...? With gdb, though, things are different - gdb is able to read the vmcore, and give the gdb prompt, at which I can see the init_mm structure, and backtrace etc. I also verified that pgd address (init_mm.pgd) is the same as crash is trying to read through readmem("pgd page"). Any inputs will be very useful. Thanks, Sumeet