nexus:~# ttutils set -p INT_HW_IRQ_EN -t overflow -c 10
[crash point set] name:INT_HW_IRQ_EN type:overflow count:10
nexus:~# Unable to handle kernel NULL pointer dereference<1>Unable to handle kernel paging request at virtual address fffff000
 printing eip:
c012c28b
*pde = 00003067
*pte = 00000000
Oops: 0000 [#1]
PREEMPT SMP
Modules linked in: dtt hook ipv6 eth1394 ide_cd cdrom ohci1394 ieee1394 snd_intel8x0 snd_ac97_codec snd_pcm snd_timer snd soundcore snd_page_alloc i2c_i801 piix ide_core hw_random ehci_hcd uhci_hcd usbcore ext3 jbd evdev psmouse rtc
CPU:    3
EIP:    0060:[<c012c28b>]    Not tainted VLI
EFLAGS: 00010086   (2.6.13-rc7-dtt)
EIP is at notifier_call_chain+0x2b/0x50
eax: c3932f74   ebx: fffff000   ecx: 00000000   edx: 00000000
esi: c3932f2c   edi: 0000000c   ebp: c3932f74   esp: c3932ee4
ds: 007b   es: 007b   ss: 0068
Process swapper (pid: 0, threadinfo=c3932000 task=c3931a60)
Stack: fffff000 9a0ad660 00000000 fffc43d0 00000003 fdce0f11 0000000b c3932f34
       c0119bf6 00000003 c381e520 00000000 87c38781 0000000b c3931a60 c381e520
       00000003 c3931a60 00000003 00000082 c03c2988 c0127e71 c3932f3c c3932f3c
Call Trace:
 [<c0119bf6>] scheduler_tick+0xb6/0x3c0
 [<c0127e71>] update_process_times+0x91/0x120
 [<c0112eb7>] smp_apic_timer_interrupt+0xe7/0xf0
 [<c0100da3>] default_idle+0x23/0x30
 [<c0103b70>] apic_timer_interrupt+0x1c/0x24
 [<c0100d80>] default_idle+0x0/0x30
 [<c0100da3>] default_idle+0x23/0x30
 [<c0100e60>] cpu_idle+0x70/0x80
Code: 57 31 d2 56 53 83 ec 0c 8b 44 24 1c 8b 7c 24 20 8b 74 24 24 8b 18 85 db 74 26 8d b6 00 00 00 00 89 74 24 08 89 7c 24 04 89 1c 24 <ff> 13 89 c2 25 00 80 ff ff 66 85 c0 75 07 8b 5b 04 85 db 75 e0
 <3>scheduling while atomic: swapper/0x000dffff/0
 [<c02ce8b4>] schedule+0xc94/0xca0

nexus:~# ttutils set -p INT_HW_IRQ_EN -t overflow -c 10
[crash point set] name:INT_HW_IRQ_EN type:overflow count:10
nexus:~#
nexus:~# Unable to handle kernel NULL pointer dereference at virtual address c03c50c0
 printing eip:
f000ba54
*pde = 00000000
*pte = 00000000
Unable to handle kernel NULL pointer dereference at virtual address 00000213
 printing eip:
c01168f6
*pde = 00000000
Oops: 0002 [#1]
PREEMPT SMP
Modules linked in: dtt hook ipv6 eth1394 ide_cd cdrom ohci1394 ieee1394 snd_intel8x0 snd_ac97_codec snd_pcm snd_timer snd soundcore snd_page_alloc i2c_i801 piix ide_core hw_random ehci_hcd uhci_hcd usbcore ext3 jbd evdev psmouse rtc
CPU:    3
EIP:    0060:[<00000016>]    Not tainted VLI
EFLAGS: 00010296   (2.6.13-rc7-dtt)
EIP is at 0x16
eax: c038f288   ebx: 00000001   ecx: 00000000   edx: c03c50c0
esi: 00000000   edi: 00000202   ebp: 00000001   esp: c03cefc4
ds: 806d   es: ef60   ss: 0068
Process swapper (pid: 0, threadinfo=c03ce000 task=c3931a60)
Stack: c03cefc4 c03cefc4 c03cefe4 00000001 c038f288 c03c50c0 00000003 c0123aa6
       c038f288 0000000a c3932f64 00000046 c03c2380 c03c2300 c010598f
Call Trace:
 [<c0123aa6>] __do_softirq+0xd6/0xf0
 [<c010598f>] do_softirq+0x4f/0x60
 =======================
 [<c0123ba5>] irq_exit+0x45/0x50
 [<c0103b70>] apic_timer_interrupt+0x1c/0x24
 [<c0100d80>] default_idle+0x0/0x30
 [<c0100da3>] default_idle+0x23/0x30
 [<c0100e60>] cpu_idle+0x70/0x80
Code:  Bad EIP value.
 <1>Unable to handle kernel NULL pointer dereference at virtual address 00000000 printing eip:
00000000
*pde = 00000000
Oops: 0000 [#2]
PREEMPT SMP
Modules linked in: dtt hook ipv6 eth1394 ide_cd cdrom ohci1394 ieee1394 snd_intel8x0 snd_ac97_codec snd_pcm snd_timer snd soundcore snd_page_alloc i2c_i801 piix ide_core hw_random ehci_hcd uhci_hcd usbcore ext3 jbd evdev psmouse rtc
CPU:    3
EIP:    0060:[<00000000>]    Not tainted VLI
EFLAGS: 00010002   (2.6.13-rc7-dtt)
EIP is at stext+0x3feffd68/0x8
eax: 00000001   ebx: 000003e7   ecx: 881ac4b4   edx: 00000017
esi: c03cef90   edi: c02e1345   ebp: 00000002   esp: c03cee54
ds: 007b   es: 007b   ss: 0068
Process swapper (pid: 0, threadinfo=c03ce000 task=c3931a60)
Stack: 0000003a f77ad880 f7ed8034 0000003a c02b19e9 f7a8d180 f7ed8034 5d191eac
       ff1b1eac ff1b1eac c03cef90 00000001 c03cee8c 00000001 c03cef90 c02e1345
       00000002 000000ff 0000000b 0000000e c02e12e3 5d191eac ff1b1eac c0368978
Call Trace:
 [<c02b19e9>] udp_rcv+0xe9/0x440
 [<c028eb20>] ip_local_deliver+0x100/0x2c0
 [<c0271f17>] alloc_skb+0x47/0xf0
 [<c0243195>] e1000_alloc_rx_buffers+0x75/0x3b0
 [<c02781d8>] netif_receive_skb+0x148/0x1d0
 [<c0242906>] e1000_clean_rx_irq+0x1e6/0x4f0
 [<c0278401>] net_rx_action+0x81/0x110
 [<c0123aa6>] __do_softirq+0xd6/0xf0
 [<c010598f>] do_softirq+0x4f/0x60
 =======================
 [<c0123ba5>] irq_exit+0x45/0x50
 [<c0103b70>] apic_timer_interrupt+0x1c/0x24
 [<c0100d80>] default_idle+0x0/0x30
 [<c0100da3>] default_idle+0x23/0x30
 [<c0100e60>] cpu_idle+0x70/0x80
Code:  Bad EIP value.
 <0>Kernel panic - not syncing: Fatal exception in interrupt