The patch titled
fix "softlockup: automatically detect hung TASK_UNINTERRUPTIBLE tasks"
has been removed from the -mm tree. Its filename was
softlockup-automatically-detect-hung-task_uninterruptible-tasks.patch
This patch was dropped because it is obsolete
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: fix "softlockup: automatically detect hung TASK_UNINTERRUPTIBLE tasks"
From: Ingo Molnar <mingo@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/x86/kernel/reboot.c | 16 ++++++++++++++--
1 file changed, 14 insertions(+), 2 deletions(-)
diff -puN arch/x86/kernel/reboot.c~softlockup-automatically-detect-hung-task_uninterruptible-tasks arch/x86/kernel/reboot.c
--- a/arch/x86/kernel/reboot.c~softlockup-automatically-detect-hung-task_uninterruptible-tasks
+++ a/arch/x86/kernel/reboot.c
@@ -396,8 +396,20 @@ void machine_shutdown(void)
if (!cpu_isset(reboot_cpu_id, cpu_online_map))
reboot_cpu_id = smp_processor_id();
- /* Make certain I only run on the appropriate processor */
- set_cpus_allowed(current, cpumask_of_cpu(reboot_cpu_id));
+ /*
+ * Make certain we only run on the appropriate processor,
+ * and with sufficient priority:
+ */
+ {
+ struct sched_param schedparm;
+ schedparm.sched_priority = 99;
+ int ret;
+
+ ret = sched_setscheduler(current, SCHED_RR, &schedparm);
+ WARN_ON_ONCE(1);
+
+ set_cpus_allowed(current, cpumask_of_cpu(reboot_cpu_id));
+ }
/* O.K Now that I'm on the appropriate processor,
* stop all of the others.
_
Patches currently in -mm which might be from mingo@xxxxxxx are
origin.patch
documentation-create-new-scheduler-subdirectory.patch
add-cmpxchg64-and-cmpxchg64_local-to-x86_64.patch
-
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