The patch titled
cpuset: oom panic fix
has been removed from the -mm tree. Its filename is
cpuset-oom-panic-fix.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
Subject: cpuset: oom panic fix
From: Nick Piggin <npiggin@xxxxxxx>
cpuset_excl_nodes_overlap always returns 0 if current is exiting. This caused
customer's systems to panic in the OOM killer when processes were having
trouble getting memory for the final put_user in mm_release. Even though
there were lots of processes to kill.
Change to returning 1 in this case. This achieves parity with !CONFIG_CPUSETS
case, and was observed to fix the problem.
Signed-off-by: Nick Piggin <npiggin@xxxxxxx>
Acked-by: Paul Jackson <pj@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
kernel/cpuset.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN kernel/cpuset.c~cpuset-oom-panic-fix kernel/cpuset.c
--- a/kernel/cpuset.c~cpuset-oom-panic-fix
+++ a/kernel/cpuset.c
@@ -2420,7 +2420,7 @@ EXPORT_SYMBOL_GPL(cpuset_mem_spread_node
int cpuset_excl_nodes_overlap(const struct task_struct *p)
{
const struct cpuset *cs1, *cs2; /* my and p's cpuset ancestors */
- int overlap = 0; /* do cpusets overlap? */
+ int overlap = 1; /* do cpusets overlap? */
task_lock(current);
if (current->flags & PF_EXITING) {
_
Patches currently in -mm which might be from npiggin@xxxxxxx are
git-block.patch
mm-vm_bug_on.patch
radix-tree-rcu-lockless-readside.patch
redo-radix-tree-fixes.patch
adix-tree-rcu-lockless-readside-update.patch
adix-tree-rcu-lockless-readside-fix-2.patch
mm-remove_mapping-safeness.patch
mm-non-syncing-lock_page.patch
oom-use-unreclaimable-info.patch
oom-reclaim_mapped-on-oom.patch
oom-cpuset-hint.patch
oom-handle-current-exiting.patch
oom-handle-oom_disable-exiting.patch
oom-swapoff-tasks-tweak.patch
oom-kthread-infinite-loop-fix.patch
oom-more-printk.patch
update-some-mm-comments.patch
sched-force-sbin-init-off-isolated-cpus.patch
-
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