Re: WARNING in try_charge

[Tetsuo Handa]

Now, let's test next-20180803 .

#syz test: git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git 
116b181bb646afedd770985de20a68721bdb2648

diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 4603ad75c9a9..852cd3dbdcd9 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -1388,6 +1388,8 @@ static bool mem_cgroup_out_of_memory(struct mem_cgroup 
*memcg, gfp_t gfp_mask,
        bool ret;
 
        mutex_lock(&oom_lock);
+       pr_info("task=%s pid=%d invoked memcg oom killer. oom_victim=%d\n",
+                       current->comm, current->pid, 
tsk_is_oom_victim(current));
        ret = out_of_memory(&oc);
        mutex_unlock(&oom_lock);
        return ret;