SCSI command + overflow :
--------------------------
llm07:/home/murali/dtt_tools # ./ttutils set -p SCSI_DISPATCH_CMD -t overflow -c 100

illm07:~ # cd /proc/
llm07:/proc # ls -l vmcore
-r--------  1 root root 5233509052 Apr  2 23:48 vmcore
llm07:/proc # gdb /home/murali/linux-2.6.16/vmlinux-1M vmcore
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This GDB was configured as "x86_64-suse-linux"...Using host libthread_db library "/lib64/tls/libthread_db.so.1".

#0  0xffffffff80251297 in crash_kexec (regs=0x0) at kexec.h:64
64      kexec.h: No such file or directory.
        in kexec.h
(gdb) info threads
* 1 process 0  0xffffffff80251297 in crash_kexec (regs=0x0) at kexec.h:64
(gdb) info registers
rax            0x0      0
rbx            0xffff81013e307800       -139632638396416
rcx            0x0      0
rdx            0x246    582
rsi            0x246    582
rdi            0x0      0
rbp            0xffffffff805a3180       0xffffffff805a3180
rsp            0xffffffff806a7c88       0xffffffff806a7c88
r8             0x2      2
r9             0x0      0
r10            0x0      0
r11            0xffffffff806c59be       -2140382786
r12            0xffffffff806a7f58       -2140504232
r13            0xb      11
r14            0x1      1
r15            0x0      0
rip            0xffffffff80251297       0xffffffff80251297 <crash_kexec+185>
eflags         0x246    582
cs             0x10     16
ss             0x18     24
ds             0x18     24
es             0x18     24
fs             0x0      0
gs             0x0      0
(gdb) bt
#0  0xffffffff80251297 in crash_kexec (regs=0x0) at kexec.h:64
#1  0xffffffff80231162 in panic (fmt=0xffffffff80533f8e "Aiee, killing interrupt handler!")
    at kernel/panic.c:89
#2  0xffffffff80234721 in do_exit (code=Variable "code" is not available.
) at kernel/exit.c:855
#3  0xffffffff80502ba1 in die_nmi (str=Variable "str" is not available.
) at arch/x86_64/kernel/traps.c:463
#4  0xffffffff8050303b in nmi_watchdog_tick (regs=Variable "regs" is not available.
) at arch/x86_64/kernel/nmi.c:495
#5  0xffffffff805029f6 in default_do_nmi (regs=Variable "regs" is not available.
) at arch/x86_64/kernel/traps.c:647
#6  0xffffffff80502f33 in do_nmi (regs=Variable "regs" is not available.
) at arch/x86_64/kernel/nmi.c:531
#7  0xffffffff805025c3 in nmi () at system.h:182
#8  0x0000000000000000 in ?? ()
#9  0x0000000000000001 in ?? ()
#10 0xffff8100b9aad0d0 in ?? ()
#11 0xffffffff80780800 in per_cpu__kstat ()
#12 0xffffffff806a4cd8 in boot_cpu_stack ()
#13 0xffffffff80780800 in per_cpu__kstat ()
#14 0xffffffff806a4c58 in boot_cpu_stack ()
#15 0xffff8100baa07630 in ?? ()
#16 0x0000000000000001 in ?? ()
#17 0xffff8100b554dc98 in ?? ()
#18 0xffff8100c0023800 in ?? ()
#19 0x0000000000000000 in ?? ()
#20 0x0000000000000000 in ?? ()
#21 0x0000000000000001 in ?? ()
#22 0xffff8100c0023800 in ?? ()
#23 0xffffffffffffffff in ?? ()
#24 0xffffffff805020bd in .text.lock.spinlock () at sched.h:13
#25 0x0000000000000010 in ?? ()
#26 0x0000000000000082 in ?? ()
---Type <return> to continue, or q <return> to quit---
#27 0xffffffff806a4c50 in boot_cpu_stack ()
#28 0x0000000000000018 in ?? ()
#29 0x0000000000000000 in ?? ()
#30 0x0000000000000000 in ?? ()
#31 0x0000000000000000 in ?? ()
#32 0x0000000000000000 in ?? ()
#33 0x0000000000000000 in ?? ()
#34 0x0000000000000000 in ?? ()
#35 0x0000000000000000 in ?? ()
#36 0x0000000000000000 in ?? ()
#37 0x0000000000000000 in ?? ()
#38 0x0000000000000000 in ?? ()
#39 0x0000000000000000 in ?? ()
#40 0x0000000000000000 in ?? ()
#41 0x0000000000000000 in ?? ()
#42 0x0000000000000000 in ?? ()
#43 0x0000000000000000 in ?? ()
#44 0x0000000000000000 in ?? ()