-- The machine resets spontaneously after displaying some error messages

Debian GNU/Linux testing/unstable nexus ttyS0

nexus login: root
Password:
Last login: Thu May 18 18:31:29 2006 on ttyS0
Linux nexus 2.6.17-rc4-dtt #2 SMP PREEMPT Tue May 16 18:04:50 JST 2006 i686

The programs included with the Debian GNU/Linux system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.

Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.
nexus:~# modprobe dtt
Kernel Hooks Interface installed.
8 compiled-in crash points registered
Crash dump test tools' module successfully loaded
nexus:~# /home/fewy/tests/kexec-tools-1.101/objdir/build/sbin/kexec -p /home/fewy/tests/linux-2.6.17-rc4-cptr/vmlinux --args-linux --append="root=/dev/sda1 init 1 irqpoll console=ttyS0,38400 console=tty0"
nexus:~# ttutils set -p INT_HW_IRQ_EN -t overflow [crash point set] name:INT_HW_IRQ_EN type:overflow count:10 nexus:~#
nexus:~# ------------[ cut here ]------------
kernel BUG at kernel/sched.c:2887!
invalid opcode: 0000 [#66055]
PREEMPT SMP
Modules linked in: dtt hook ipv6 ext3 jbd rtc eth1394 ide_cd cdrom ohci1394 snd_intel8x0 snd_ac97_codec snd_ac97_bus snd_pcm snd_timer snd ieee1394 soundcore snd_page_alloc ehci_hcd uhci_hcd piix i2c_i801 evdev psmouse hw_random ide_core usbcore
CPU:    0
EIP:    0060:[<c0115d97>]    Not tainted VLI
EFLAGS: 00010086   (2.6.17-rc4-dtt #2)
EIP is at add_preempt_count+0x28/0x32
eax: cccccccc   ebx: c034e0d8   ecx: 00000001   edx: c034e000
esi: 00000000   edi: c0104b6a   ebp: c034e018   esp: c034e018
ds: 007b   es: 007b   ss: 0068
Process swapper (pid: 0, threadinfo=c034d000 task=c0304680)
Stack: <0>c034e10c c0129198 c034e0d8 c0104be3 c0305c80 00000009 c034e0b8 cccccccc
       00000004 00000000 00030002 c0115d97 cccccccc cccccccc cccccccc cccccccc
       cccccccc cccccccc cccccccc cccccccc cccccccc cccccccc cccccccc cccccccc
Call Trace:
 <c0129198> atomic_notifier_call_chain+0xb/0x46   <c0104be3> do_invalid_op+0x79/0xb4
 <c0115d97> add_preempt_count+0x28/0x32   <c01039af> error_code+0x4f/0x54
 <c0104b6a> do_invalid_op+0x0/0xb4   <c0115d97> add_preempt_count+0x28/0x32
 <c0129198> atomic_notifier_call_chain+0xb/0x46   <c0104be3> do_invalid_op+0x79/0xb4
 <c0115d97> add_preempt_count+0x28/0x32   <c01039af> error_code+0x4f/0x54
 <c0104b6a> do_invalid_op+0x0/0xb4   <c0115d97> add_preempt_count+0x28/0x32
 <c0129198> atomic_notifier_call_chain+0xb/0x46   <c0104be3> do_invalid_op+0x79/0xb4
 <c0115d97> add_preempt_count+0x28/0x32   <c01039af> error_code+0x4f/0x54
 <c0104b6a> do_invalid_op+0x0/0xb4   <c0115d97> add_preempt_count+0x28/0x32
 <c0129198> atomic_notifier_call_chain+0xb/0x46   <c0104be3> do_invalid_op+0x79/0xb4
 <c0115d97> add_preempt_count+0x28/0x32   <c01039af> error_code+0x4f/0x54
 <c0104b6a> do_invalid_op+0x0/0xb4   <c0115d97> add_preempt_count+0x28/0x32
 <c0129198> atomic_notifier_call_chain+0xb/0x46   <c0104be3> do_invalid_op+0x79/0xb4
 <c0115d97> add_preempt_count+0x28/0x32   <c01039af> error_code+0x4f/0x54
 <c0104b6a> do_invalid_op+0x0/0xb4   <c0115d97> add_preempt_count+0x28/0x32
 <c0129198> atomic_notifier_call_chain+0xb/0x46   <c0104be3> do_invalid_op+0x79/0xb4
 <c0115d97> add_preempt_count+0x28/0x32   <c01039af> error_code+0x4f/0x54
 <c0104b6a> do_invalid_op+0x0/0xb4   <c0115d97> add_preempt_count+0x28/0x32
 <c0129198> atomic_notifier_call_chain+0xb/0x46   <c0104be3> do_invalid_op+0x79/0xb4
 <c0115d97> add_preempt_count+0x28/0x32   <c01039af> error_code+0x4f/0x54
 <c0104b6a> do_invalid_op+0x0/0xb4   <c0115d97> add_preempt_count+0x28/0x32
 <c0129198> atomic_notifier_call_chain+0xb/0x46   <c0104be3> do_invalid_op+0x79/0xb4
 <c0115d97> add_preempt_count+0x28/0x32   <c01039af> error_code+0x4f/0x54
 <c0104b6a> do_invalid_op+0x0/0xb4   <c0115d97> add_preempt_count+0x28/0x32
 <c0129198> atomic_notifier_call_chain+0xb/0x46   <c0104be3> do_invalid_op+0x79/0xb4
 <c0115d97> add_preempt_count+0x28/0x32   <c01039af> error_code+0x4f/0x54
 <c0104b6a> do_invalid_op+0x0/0xb4   <c0115d97> add_preempt_count+0x28/0x32
 <c0129198> atomic_notifier_call_chain+0xb/0x46   <c0104be3> do_invalid_op+0x79/0xb4
 <c0115d97> add_preempt_count+0x28/0x32   <c01039af> error_code+0x4f/0x54
 <c0104b6a> do_invalid_op+0x0/0xb4   <c0115d97> add_preempt_count+0x28/0x32
 <c0129198> atomic_notifier_call_chain+0xb/0x46   <c0104be3> do_invalid_op+0x79/0xb4
 <c0115d97> add_preempt_count+0x28/0x32   <c01039af> error_code+0x4f/0x54
 <c0104b6a> do_invalid_op+0x0/0xb4   <c0115d97> add_preempt_count+0x28/0x32
 <c0129198> atomic_notifier_call_chain+0xb/0x46   <c0104be3> do_invalid_op+0x79/0xb4
 <c0115d97> add_preempt_count+0x28/0x32   <c01039af> error_code+0x4f/0x54
 <c0104b6a> do_invalid_op+0x0/0xb4   <c0115d97> add_preempt_count+0x28/0x32
 <c0129198> atomic_notifier_call_chain+0xb/0x46   <c0104be3> do_invalid_op+0x79/0xb4
 <c0115d97> add_preempt_count+0x28/0x32   <c01039af> error_code+0x4f/0x54
 <c0104b6a> do_invalid_op+0x0/0xb4   <c0115d97> add_preempt_count+0x28/0x32
 <c0129198> atomic_notifier_call_chain+0xb/0x46   <c0104be3> do_invalid_op+0x79/0xb4
 <c0115d97> add_preempt_count+0x28/0x32   <c01039af> error_code+0x4f/0x54
 <c0104b6a> do_invalid_op+0x0/0xb4   <c0115d97> add_preempt_count+0x28/0x32
 <c0129198> atomic_notifier_call_chain+0xb/0x46   <c0104be3> do_invalid_op+0x79/0xb4
 <c0115d97> add_preempt_count+0x28/0x32   <c01039af> error_code+0x4f/0x54
 <c0104b6a> do_invalid_op+0x0/0xb4   <c0115d97> add_preempt_count+0x28/0x32
 <c0129198> atomic_notifier_call_chain+0xb/0x46   <c0104be3> do_invalid_op+0x79/0xb4
 <c0115d97> add_preempt_count+0x28/0x32

(spontaneous reset)