what is /proc/interrupts & /proc/irq/*/spurious mean?

Hi All,
i have a board shipped with Linux kernel 2.6.27.

i have some problems in interrupts but while i was gathering some info about the interrupts on my board by

cat /proc/interrupts
CPU0

 16:       2525   OpenPIC   Level     enet_tx
 17:       5606   OpenPIC   Level     enet_rx
 18:          0   OpenPIC   Level     enet_error
 21:          3   OpenPIC   Level     fsldma-channel
 22:          3   OpenPIC   Level     fsldma-channel
 23:          3   OpenPIC   Level     fsldma-channel
 25:          3   OpenPIC   Level     fsldma-channel
 26:        461   OpenPIC   Level     serial
 27:          0   OpenPIC   Level     i2c-mpc
 48:          4   OpenPIC   Level     phy_interrupt
 50:          0   OpenPIC   Edge      DSP-A
 52:         11   OpenPIC   Edge      DSP-B
 54:          0   OpenPIC   Level     FPGA

BAD: 0

actually i m interested in IRQ number 52.
from the previous command: it seems to me OpenPIC has received 11 interrupt from the device namely DSP-B& this interrupt is edge triggered. Is it correct?

Also i use:

cat /proc/irq/52/spurious
count 11
unhandled 0
last_unhandled 0 ms

but actually i dont understan its meaning?
does it mean that i received 11 spurious interrupt? i expect this because the name of the file is spurious.

what does the field unhandled mean?

thanks for ur help.

View this message in context: http://www.nabble.com/what-is--proc-interrupts----proc-irq-*-spurious-mean--tp23918722p23918722.html
Sent from the linuxppc-dev mailing list archive at Nabble.com.