John Baldwin fafb7a586b Enable interrupt preemption on Alpha. Previously, flipping this switch on ... caused hangs on SMP systems under load. My theory was that an interrupted thread was migrating and returning to PAL on a different CPU and that that caused the hangs. To prevent this, I used the recently added sched_pin() API to pin the interrupted thread to the CPU that received the interrupt across ithread_schedule() to prevent migration. This seems to have fixed the hangs based on tests by several folks on the alpha@ list. Tested by: wilko, tisco, several others on alpha@		2004-03-23 22:28:16 +00:00
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alpha	Enable interrupt preemption on Alpha. Previously, flipping this switch on	2004-03-23 22:28:16 +00:00
compile	Don't need the .keep_me files. Obrien and I committed past each other.	2001-07-01 23:35:44 +00:00
conf	- Remove local changes that leaked into my last commit.	2004-01-24 21:45:25 +00:00
include	Introduce the cpumask_t type. The purpose of the type is to create a	2004-03-20 20:41:40 +00:00
isa	sync comment with i386's isa.c.. This removes a comment that is YEARS	2004-03-17 21:45:55 +00:00
linux	Regenerate.	2004-03-15 22:44:35 +00:00
mcbus	Widen the enable/disable helper function's argument in line with the	2003-11-17 06:10:15 +00:00
osf1	- Replace wait1() with a kern_wait() function that accepts the pid,	2004-03-17 20:00:00 +00:00
pci	Catch a few places where NULL (pointer) was used where 0 (integer) was	2003-12-23 02:36:43 +00:00
tlsb	Device megapatch 4/6:	2004-02-21 21:10:55 +00:00
Makefile	Add a dopey makefile to do the tags dance, which is probably not perfect	2000-12-31 23:26:34 +00:00