patch-1.3.31 linux/Documentation/SMP.txt

• Lines: 39
• Date: Mon Oct 2 14:25:09 1995
• Orig file: v1.3.30/linux/Documentation/SMP.txt
• Orig date: Thu Jan 1 02:00:00 1970

diff -u --recursive --new-file v1.3.30/linux/Documentation/SMP.txt linux/Documentation/SMP.txt
@@ -0,0 +1,38 @@
+
+SMP support for Linux with up to 32 processors using the Intel MP
+specification. 
+
+WARNING:
+	This is experimental. Back up your disks first. Build only
+with gcc2.5.8.
+
+
+To fix:
+
+o	Fix sys_idle to exit/enter kernel state and do hlt's.
+o	Fix scheduler decisions to reschedule. Per cpu reschedule ?
+o	Scheduler ignores stick to CPU advantage. Critical for P6!
+o	FPU state save/restore - fault any process on FPU and do a
+	restore on the fault each context switch, do a save if we
+	faulted that run of the task when we switch away. [DONE]
+o	Clean up message pass.
+o	Test for B stepping processors.
+o	Clean up processor specific/independant split.
+o	Document it all.	[PARTLY DONE]
+o	Find the exception/crash bug.
+o	Halt other CPU's on reset/panic doesn't always work.
+o	Dont waste page at 4K - dont need it now.(watch the GDT code).
+o	Dump bootup pages once booted somehow.
+o	Verify message pass safe for >2 CPU's - should be now it
+	is atomic lock based.
+o	Dont schedule switches between idle tasks (if current->pid==0 &&
+	next->pid==0 && next!=current)	[IN]
+o	Clean up warnings/volatiles.
+o	Send CTRL-ALT-DEL to pid 1 not task[1]!	[IN]
+o	Fix load_TR() for non contiguous processor ids
+o	Iterate over the slave timer requests if one is lost (keep a count per cpu)
+o	Distribute irq's (locking present just needs the 82489 to be asked
+	nicely).
+o	486 startup code.
+o	How to handle mixed FPU/non FPU processors.
+o	Support 4Mb page mode again