Re: [PATCH] (0/4) Entropy accounting fixes

From: Jonathan Lundell (
Date: Sun Aug 18 2002 - 12:31:44 EST

At 11:30 AM +0100 8/18/02, Alan Cox wrote:
>Its probably true there are low bits of randomness available from such
>sources providing we know the machine has a tsc, unless the I/O APIC is
>clocked at a divider of the processor clock in which case our current
>behaviour is probably much saner.

The clock spec for the APIC bus makes it very convenient to clock it
at 16.66_ MHz, 1/2 (or some other submultiple) of the PCI clock,
which of course would be highly correlated with the low bits of TSC.

/Jonathan Lundell.
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

This archive was generated by hypermail 2b29 : Fri Aug 23 2002 - 22:00:15 EST