freebsd-skq/sys/i386
Attilio Rao 06db609d4a Opteron rev E family of processor expose a bug where, in very rare
ocassions, memory barriers semantic is not honoured by the hardware
itself. As a result, some random breakage can happen in uninvestigable
ways (for further explanation see at the content of the commit itself).

As long as just a specific familly is bugged of an entire architecture
is broken, a complete fix-up is impratical without harming to some
extents the other correct cases.
Considering that (and considering the frequency of the bug exposure)
just print out a warning message if the affected machine is identified.

Pointed out by:	Samy Al Bahra <sbahra at repnop dot org>
Help on wordings by:	jeff
MFC:	3 days
2009-11-04 01:32:59 +00:00
..
acpica Extract the code to find and map the MADT ACPI table during early kernel 2009-09-23 15:42:35 +00:00
bios Unobfuscate unit number handling in apm(4). 2009-10-31 10:38:30 +00:00
compile
conf add amdtemp to i386 NOTES 2009-10-20 09:31:57 +00:00
cpufreq Consolidate CPUID to CPU family/model macros for amd64 and i386 to reduce 2009-09-10 17:27:36 +00:00
i386 Opteron rev E family of processor expose a bug where, in very rare 2009-11-04 01:32:59 +00:00
ibcs2 As jhb@ pointed out to me, r197057 was incorrect, not least because these 2009-09-10 13:20:27 +00:00
include Add a facility for associating optional descriptions with active interrupt 2009-10-15 14:54:35 +00:00
isa - Teach vesa(4) and dpms(4) about x86emu. [1] 2009-09-09 09:50:31 +00:00
linux Fix some problems with effective mmap() offsets > 32 bits. This was 2009-10-28 20:17:54 +00:00
pci number of cleanups in i386 and amd64 pci md code 2009-09-24 07:11:23 +00:00
svr4 Change some movl's to mov's. Newer GAS no longer accept 'movl' instructions 2009-01-31 11:37:21 +00:00
xbox In keeping with style(9)'s recommendations on macros, use a ';' 2008-03-16 10:58:09 +00:00
xen o Introduce vm_sync_icache() for making the I-cache coherent with 2009-10-21 18:38:02 +00:00
Makefile