Tasklet with IRQs disabled + panic :
-----------------------------------
llm07:/home/murali/dtt_tools # ./ttutils set -p TASKLET -t panic -c 100
llm07:/proc # ls -l vmcore
-r-------- 1 root root 5233509408 Mar 29 05:04 vmcore
llm07:/proc # gdb /home/murali/linux-2.6.16/vmlinux-1
vmlinux-16M vmlinux-1M
llm07:/proc # gdb /home/murali/linux-2.6.16/vmlinux-1M vmcore
GNU gdb 6.1
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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 regs
Undefined info command: "regs". Try "help info".
(gdb) info registers
rax 0x0 0
rbx 0xffff81013ddfec00 -139632643675136
rcx 0xffffffff805aaaa8 -2141541720
rdx 0xffffffff805aaaa8 -2141541720
rsi 0x46 70
rdi 0x0 0
rbp 0xffffffff8073a150 0xffffffff8073a150
rsp 0xffffffff806a4d98 0xffffffff806a4d98
r8 0xffffffff805aaaa8 -2141541720
r9 0x0 0
r10 0x46 70
r11 0xffffffff806a4d68 -2140517016
r12 0xa 10
r13 0x0 0
r14 0x0 0
r15 0x0 0
rip 0xffffffff80251297 0xffffffff80251297 <crash_kexec+185>
eflags 0x46 70
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=0xffffffff80576308 "dumptest") at kernel/panic.c:89
#2 0xffffffff80472d3f in cpoint_default_exit (hook=Variable "hook" is not available.
) at drivers/dtt/khdtt.c:306
#3 0x0000000000000000 in ?? ()
#4 0xffffffff80236306 in TASKLET_hook () at kernel/softirq.c:256
#5 0xffffffff802365f8 in __do_softirq () at kernel/softirq.c:97
#6 0xffffffff8020ac26 in call_softirq () at cpumask.h:183
#7 0xffffffff806a4fa0 in boot_cpu_stack ()
#8 0xffffffff8020bad3 in do_softirq () at arch/x86_64/kernel/irq.c:149
#9 0xffffffff8020a580 in apic_timer_interrupt () at cpumask.h:183
#10 0xffffffff80747f08 in init_thread_union ()
#11 0x0000000000000000 in ?? ()
#12 0x0000000000000000 in ?? ()