Please get the output of "cat /proc/interrupts" from a fresh boot
without the irqpoll, so we can see what devices are registered to IRQ 7.
I only see two things from lspci, and that's USB and a Bridge. Perhaps
the bridge is somehow producing these interrupts.
It may be worth checking if you have a BIOS update for this system.
** Changed in: linux-source-2.6.20 (Ubuntu)
Status: Confirmed => Needs Info
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kernel later than 2.6.20-6 crash
https://launchpad.net/bugs/90209
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