Tasklet with IRQs enabled + Loop
--------------------------------------
llm07:/home/murali/dtt_tools # ./ttutils set -p INT_TASKLET_ENTRY -t loop -c 50
Press AltSysRq-c after it get hungs.
llm07:/proc # uname -a
Linux llm07 2.6.16-mm2 #9 SMP Mon Apr 17 23:37:51 PDT 2006 x86_64 x86_64 x86_64 GNU/Linux
llm07:/proc # ls -l vmcore
-r-------- 1 root root 5233509408 Apr 20 03:51 vmcore
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 0xffffffff80208364 in default_idle () at arch/x86_64/kernel/process.c:119
119 safe_halt();
(gdb) info threads
* 2 process 0 0xffffffff80208364 in default_idle () at arch/x86_64/kernel/process.c:119
* 1 process 0 0xffffffff80208364 in default_idle () at arch/x86_64/kernel/process.c:119
(gdb) info registers
rax 0x0 0
rbx 0xffffffff8020832f -2145352913
rcx 0x0 0
rdx 0xffffffff80737000 -2139918336
rsi 0x1 1
rdi 0xffffffff802089ea -2145351190
rbp 0x8e000 0x8e000
rsp 0xffffffff80747fb0 0xffffffff80747fb0
r8 0xffffffff80746000 -2139856896
r9 0x8 8
r10 0x8 8
r11 0xffffffff805d13c0 -2141383744
r12 0x0 0
r13 0x0 0
r14 0x0 0
r15 0x0 0
rip 0xffffffff80208364 0xffffffff80208364 <default_idle+53>
eflags 0x246 582
cs 0x10 16
ss 0x18 24
ds 0x18 24
es 0x18 24
fs 0x0 0
gs 0x0 0
(gdb) bt
#0 0xffffffff80208364 in default_idle () at arch/x86_64/kernel/process.c:119
#1 0x0000000000000000 in ?? ()
#2 0xffffffff802089ea in cpu_idle () at arch/x86_64/kernel/process.c:223
#3 0xffffffff807497b3 in start_kernel () at init/main.c:576
#4 0xffffffff806ad920 in saved_video_mode ()
#5 0xffffffff807492aa in x86_64_start_kernel (real_mode_data=Variable "real_mode_data" is not available.
)
at arch/x86_64/kernel/head64.c:120
#6 0x00000000ffffffff in ?? ()
#7 0x0000000000000405 in ?? ()
#8 0x0000000000000000 in ?? ()
#9 0x0000000000000000 in ?? ()
#10 0x0000000000000000 in ?? ()
#11 0x00af9b000000ffff in ?? ()
#12 0x00cf93000000ffff in ?? ()
#13 0x00cffa000000ffff in ?? ()
#14 0x00cff3000000ffff in ?? ()
#15 0x00affb000000ffff in ?? ()
#16 0x00cf9b000000ffff in ?? ()
#17 0x0c008b000000206f in ?? ()
#18 0x00000000ffff8100 in ?? ()
#19 0x0000000000000000 in ?? ()
#20 0x0000000000000000 in ?? ()
#21 0x0000000000000000 in ?? ()
#22 0x0000000000000000 in ?? ()
#23 0x0000000000000000 in ?? ()
#24 0x0000000000000000 in ?? ()
#25 0x0000000000000000 in ?? ()
#26 0x0000000000000000 in ?? ()
---Type <return> to continue, or q <return> to quit---quit
Quit
(gdb) thread 2
[Switching to thread 2 (process 0)]#0 0xffffffff80208364 in default_idle ()
at arch/x86_64/kernel/process.c:119
119 safe_halt();
(gdb) bt
#0 0xffffffff80208364 in default_idle () at arch/x86_64/kernel/process.c:119
#1 0x0000000000000000 in ?? ()
#2 0xffffffff802089ea in cpu_idle () at arch/x86_64/kernel/process.c:223
#3 0xffffffff807497b3 in start_kernel () at init/main.c:576
#4 0xffffffff806ad920 in saved_video_mode ()
#5 0xffffffff807492aa in x86_64_start_kernel (real_mode_data=Variable "real_mode_data" is not available.
)
at arch/x86_64/kernel/head64.c:120
#6 0x00000000ffffffff in ?? ()
#7 0x0000000000000405 in ?? ()
#8 0x0000000000000000 in ?? ()
#9 0x0000000000000000 in ?? ()
#10 0x0000000000000000 in ?? ()
#11 0x00af9b000000ffff in ?? ()
#12 0x00cf93000000ffff in ?? ()
#13 0x00cffa000000ffff in ?? ()
#14 0x00cff3000000ffff in ?? ()
#15 0x00affb000000ffff in ?? ()
#16 0x00cf9b000000ffff in ?? ()
#17 0x0c008b000000206f in ?? ()
#18 0x00000000ffff8100 in ?? ()
#19 0x0000000000000000 in ?? ()
#20 0x0000000000000000 in ?? ()
#21 0x0000000000000000 in ?? ()
#22 0x0000000000000000 in ?? ()
#23 0x0000000000000000 in ?? ()
#24 0x0000000000000000 in ?? ()
#25 0x0000000000000000 in ?? ()
#26 0x0000000000000000 in ?? ()
---Type <return> to continue, or q <return> to quit---quit
Quit
(gdb)