Are you SURE it is a matter of cache coherency? All CPUs 486 and
newer apply A20 already before hitting the L1 cache. More likely is
that whatever is toggling the A20 line isn't pausing long enough after
toggling it; I found when I changed SYSLINUX to do its own
protected-mode bcopy that a loop with 20 I/O operations in it appears
to be required; I found this tip on http://www.x86.org/.
-- PGP: 2047/2A960705 BA 03 D3 2C 14 A8 A8 BD 1E DF FE 69 EE 35 BD 74 See http://www.zytor.com/~hpa/ for web page and full PGP public key I am Bahá'í -- ask me about it or see http://www.bahai.org/ "To love another person is to see the face of God." -- Les Misérables
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to firstname.lastname@example.org