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| author | Xishi Qiu <qiuxishi@huawei.com> | 2014-01-21 15:50:57 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-01-21 16:19:48 -0800 |
| commit | 25487d73a9670d911530eee2e31c20889ba117db (patch) | |
| tree | 2d9c814c47e2f72b342a5063699f26a881f02eaf /lib/show_mem.c | |
| parent | 4883e997b26ed857da8dae6a6e6aeb12830b978d (diff) | |
| download | lwn-25487d73a9670d911530eee2e31c20889ba117db.tar.gz lwn-25487d73a9670d911530eee2e31c20889ba117db.zip | |
lib/show_mem.c: show num_poisoned_pages when oom
Show num_poisoned_pages when oom, it is a little helpful to find the
reason. Also it will be emitted anytime show_mem() is called.
Signed-off-by: Xishi Qiu <qiuxishi@huawei.com>
Suggested-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Acked-by: Michal Hocko <mhocko@suse.cz>
Acked-by: David Rientjes <rientjes@google.com>
Reviewed-by: Wanpeng Li <liwanp@linux.vnet.ibm.com>
Acked-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'lib/show_mem.c')
| -rw-r--r-- | lib/show_mem.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/show_mem.c b/lib/show_mem.c index f58689f5a24e..09225796991a 100644 --- a/lib/show_mem.c +++ b/lib/show_mem.c @@ -43,4 +43,7 @@ void show_mem(unsigned int filter) printk("%lu pages in pagetable cache\n", quicklist_total_size()); #endif +#ifdef CONFIG_MEMORY_FAILURE + printk("%lu pages hwpoisoned\n", atomic_long_read(&num_poisoned_pages)); +#endif } |