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Machine reboot upon probing
- From: "Peter Teoh" <htmldeveloper at gmail dot com>
- To: systemtap at sources dot redhat dot com
- Date: Mon, 21 Apr 2008 22:51:57 +0800
- Subject: Machine reboot upon probing
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Running the following scripts:
probe kernel.function("*@kernel/softirq.c").call {
printf ("%s -> %s\n", thread_indent(1), probefunc())
print_backtrace();
printf("\n");
}
probe kernel.function("*@kernel/softirq.c").return {
printf ("%s <- %s\n", thread_indent(-1), probefunc())
printf("\n");
}
will reboot the kernel (2.6.25-rc9, FC7) in just a short time. User
applications are just firefox switching randomly among different
screens.
The last few lines before the reboot are:
16 swapper(0): <- irq_exit
0 gnome-terminal(3974): -> irq_enter
0xc04289aa : irq_enter+0x1/0x4e
0xc0405394 : apic_timer_interrupt+0x28/0x30
5 gnome-terminal(3974): <- irq_enter
0 gnome-terminal(3974): -> irq_exit
0xc0428872 : irq_exit+0x1/0x6b
0xc0405394 : apic_timer_interrupt+0x28/0x30
5 gnome-terminal(3974): -> _local_bh_enable
0xc0428592 : _local_bh_enable+0x1/0x6e
0xc04068c4 : do_softirq+0x55/0x88
10 gnome-terminal(3974): <- _local_bh_enable
14 gnome-terminal(3974): <- irq_exit
0 swapper(0): -> irq_enter
0xc04289aa : irq_enter+0x1/0x4e
0xc0405394 : apic_timer_interrupt+0x28/0x30
0xc04031c5 : mwait_idle+0xd/0xf
0xc0403588 : cpu_idle+0x8f/0xab
0xc0627fc9 : rest_init+0x49/0x4b
0xc07638ba : start_kernel+0x2e5/0x2ed
9 swapper(0): <- irq_enter
0 swapper(0): -> irq_exit
0xc0428872 : irq_exit+0x1/0x6b
0xc0405394 : apic_timer_interrupt+0x28/0x30
0xc04031c5 : mwait_idle+0xd/0xf
0xc0403588 : cpu_idle+0x8f
Any hints/clue why it crashes?
--
Regards,
Peter Teoh