This patch fixes some obviously incorrect bitmask truncations in 2.4.20.
diff -Nru a/include/linux/sched.h b/include/linux/sched.h
--- a/include/linux/sched.h Mon Dec 16 11:58:42 2002
+++ b/include/linux/sched.h Mon Dec 16 11:58:42 2002
@@ -482,8 +482,8 @@
policy: SCHED_OTHER, \
mm: NULL, \
active_mm: &init_mm, \
- cpus_runnable: -1, \
- cpus_allowed: -1, \
+ cpus_runnable: ~0UL, \
+ cpus_allowed: ~0UL, \
run_list: LIST_HEAD_INIT(tsk.run_list), \
next_task: &tsk, \
prev_task: &tsk, \
diff -Nru a/kernel/sched.c b/kernel/sched.c
--- a/kernel/sched.c Mon Dec 16 11:58:42 2002
+++ b/kernel/sched.c Mon Dec 16 11:58:42 2002
@@ -116,7 +116,7 @@
#define idle_task(cpu) (init_tasks[cpu_number_map(cpu)])
#define can_schedule(p,cpu) \
- ((p)->cpus_runnable & (p)->cpus_allowed & (1 << cpu))
+ ((p)->cpus_runnable & (p)->cpus_allowed & (1UL << cpu))
#else
@@ -359,7 +359,7 @@
if (task_on_runqueue(p))
goto out;
add_to_runqueue(p);
- if (!synchronous || !(p->cpus_allowed & (1 << smp_processor_id())))
+ if (!synchronous || !(p->cpus_allowed & (1UL << smp_processor_id())))
reschedule_idle(p);
success = 1;
out:
-
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This archive was generated by hypermail 2b29 : Mon Dec 23 2002 - 22:00:14 EST