Disable kernel's irq balance feature - 0 views
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Add 'noirqbalance' (w/o the quotes) to your kernel cmd-line.
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kernel /boot/vmlinuz26 root=/dev/disk/by-uuid/241459a4-d4b5-42cf-a30f-4c6bc0120d1d resume=/dev/sda5 ro vga=792 noirqbalance quiet