Tasklet with IRQs disabled + exception :
--------------------------------------
llm07:/home/murali/dtt_tools # ./ttutils set -p TASKLET -t exception -c 100
llm07:/proc # ls -l vmcore
-r-------- 1 root root 5233509408 Mar 30 21:14 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
* 2 process 0 0xffffffff80251297 in crash_kexec (regs=0x0) at kexec.h:64
* 1 process 0 0xffffffff80251297 in crash_kexec (regs=0x0) at kexec.h:64
(gdb) info registers
rax 0x0 0
rbx 0xffff81013e060c00 -139632641176576
rcx 0x0 0
rdx 0x246 582
rsi 0x246 582
rdi 0x0 0
rbp 0xffffffff805a3180 0xffffffff805a3180
rsp 0xffffffff806a4b98 0xffffffff806a4b98
r8 0x2 2
r9 0x0 0
r10 0x0 0
r11 0xffffffff806c4cfb -2140386053
r12 0x0 0
r13 0x9 9
r14 0x2 2
r15 0xffffffff805a3180 -2141572736
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 0xffffffff80504219 in do_page_fault (regs=Variable "regs" is not available.
) at arch/x86_64/mm/fault.c:560
#4 0xffffffff8020a71d in error_sti () at cpumask.h:183
#5 0x0000000000000000 in ?? ()
#6 0x0000000000000000 in ?? ()
#7 0x0000000000000000 in ?? ()
#8 0x000000000000000a in ?? ()
#9 0xffffffff8073a150 in softirq_vec ()
#10 0x0000000000000001 in ?? ()
#11 0x0000000000000000 in ?? ()
#12 0x0000000000000046 in ?? ()
#13 0x0000000000000000 in ?? ()
#14 0x0000000000000000 in ?? ()
#15 0x0000000000000004 in ?? ()
#16 0xffff81013e02ee78 in ?? ()
#17 0xffffffff805af580 in TIMERADD ()
#18 0x0fdf8786c2ffb260 in ?? ()
#19 0xffffffff805af460 in probe_sem ()
#20 0xffffffffffffffff in ?? ()
#21 0xffffffff80472d59 in cpoint_default_exit (hook=Variable "hook" is not available.
) at drivers/dtt/khdtt.c:311
#22 0x0000000000000010 in ?? ()
#23 0x0000000000010097 in ?? ()
#24 0xffffffff806a4f38 in boot_cpu_stack ()
#25 0x0000000000000018 in ?? ()
#26 0xffffffff80472d23 in cpoint_default_exit (hook=Variable "hook" is not available.
) at drivers/dtt/khdtt.c:300
---Type <return> to continue, or q <return> to quit---
#27 0xffffffff80236306 in TASKLET_hook () at kernel/softirq.c:256
#28 0xffffffff802365f8 in __do_softirq () at kernel/softirq.c:97
#29 0xffffffff8020ac26 in call_softirq () at cpumask.h:183
#30 0xffffffff806a4fa0 in boot_cpu_stack ()
#31 0xffffffff8020bad3 in do_softirq () at arch/x86_64/kernel/irq.c:149
#32 0xffffffff8020a580 in apic_timer_interrupt () at cpumask.h:183
#33 0xffffffff80747f08 in init_thread_union ()
#34 0x0000000000000000 in ?? ()
#35 0x0000000000000000 in ?? ()
#36 0x0000000000000000 in ?? ()
#37 0x0000000000000000 in ?? ()
#38 0x0000000000000000 in ?? ()
#39 0x0000000000000000 in ?? ()
#40 0x0000000000000000 in ?? ()