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LOCAL / mm, page_alloc: Add print page allocation failure reason
author
Hoegeun Kwon
<hoegeun.kwon@samsung.com>
Thu, 7 Mar 2019 02:18:21 +0000
(11:18 +0900)
committer
Junghoon Kim
<jhoon20.kim@samsung.com>
Tue, 11 Jun 2019 00:35:55 +0000
(09:35 +0900)
There is an unclear problem when page alloc failed. So clearly print
the cause of the failure.
Change-Id: Ie59e1d4e34deabb8733268edfb433754f43766a8
Signed-off-by: Hoegeun Kwon <hoegeun.kwon@samsung.com>
mm/page_alloc.c
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diff --git
a/mm/page_alloc.c
b/mm/page_alloc.c
index
aa38fdb
..
ec41ae7
100644
(file)
--- a/
mm/page_alloc.c
+++ b/
mm/page_alloc.c
@@
-7810,6
+7810,9
@@
static int __alloc_contig_migrate_range(struct compact_control *cc,
while (pfn < end || !list_empty(&cc->migratepages)) {
if (fatal_signal_pending(current)) {
+ pr_err("Fatal signal pending task: %s(%d), %#lx\n",
+ current->comm, current->pid,
+ current->pending.signal.sig[0]);
ret = -EINTR;
break;
}