Stuttering video: backend msgs: IOBOUND = blocking in ThreadedFileWriter::Write()

IOBOUND = blocking in ThreadedFileWriter::Write()

Fix from myth-users:

"I tracked
down the problem to the kernel (top reported 100% wait time).
Eventually I discovered that disabling APIC (by appending "noapic" to
the kernel loader) would cause MythTV to start working."

Old /boot/grub/menu.lst:
kernel /vmlinuz-2.6.9-1.667 ro root=/dev/VolGroup00/LogVol00 rhgb quiet

New:
kernel /vmlinuz-2.6.9-1.667 ro root=/dev/VolGroup00/LogVol00 rhgb quiet noapic

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What is the noapic option? found this:

"APIC is the hardware that ia32 systems use to communicate between CPUs to
handle low-level events like interrupts and TLB flushes" (from the linux
kernel FAQ).