Hi, Alexandra,
On Wed, 2013-08-21 at 17:44 +0400, Alexandra N. Kossovsky wrote:
> On Aug 21 10:38, Catalin Marinas wrote:
> > On 12 August 2013 03:45, Alexandra N. Kossovsky
> > <Alexandra.Kossovsky@xxxxxxxxxxxx> wrote:
> > > When running 3.10.3 with kmemleak enabled, I see following warnings from
> > > kmemleak:
> > >
> > > unreferenced object 0xffff88024d2219a0 (size 32):
> > > comm "swapper/0", pid 1, jiffies 4294894532 (age 26865.180s)
> > > hex dump (first 32 bytes):
> > > 58 de 0c 73 02 88 ff ff 58 de 0c 73 02 88 ff ff X..s....X..s....
> > > 18 50 fd 7d 00 00 00 00 3f 50 fd 7d 00 00 00 00 .P.}....?P.}....
> > > backtrace:
> > > [<ffffffff813ddf40>] kmemleak_alloc+0x21/0x3e
> > > [<ffffffff8111cb99>] kmemleak_alloc_recursive.constprop.58+0x16/0x18
> > > [<ffffffff8111efac>] kmem_cache_alloc_trace+0xe6/0x12f
> > > [<ffffffff81278f0e>] apei_res_add+0xb9/0xe8
> > > [<ffffffff81278faa>] collect_res_callback+0x6d/0x7c
> > > [<ffffffff812788ed>] apei_exec_for_each_entry+0x78/0x93
> > > [<ffffffff8127891d>] apei_exec_collect_resources+0x15/0x17
> > > [<ffffffff81b010e5>] erst_init+0x278/0x2a3
> > > [<ffffffff810020b5>] do_one_initcall+0x7b/0x116
> > > [<ffffffff81ac9ee7>] kernel_init_freeable+0x13f/0x1cc
> > > [<ffffffff813db19f>] kernel_init+0x9/0xd6
> > > [<ffffffff813fe5bc>] ret_from_fork+0x7c/0xb0
> > > [<ffffffffffffffff>] 0xffffffffffffffff
> >
> > Are there any "APEI:" errors in the kernel log? It could be some
> > freeing missing on an error path.
>
> No.
> dmesg |grep APEI
> [ 9.602274] GHES: APEI firmware first mode is enabled by APEI bit and WHEA _OSC.
>
Can you try the following debug patch, and send me back the output of:
$ dmesg | grep apei_res
Best Regards,
Huang Ying
---
drivers/acpi/apei/apei-base.c | 4 ++++
1 file changed, 4 insertions(+)
--- a/drivers/acpi/apei/apei-base.c
+++ b/drivers/acpi/apei/apei-base.c
@@ -310,6 +310,8 @@ static int apei_res_add(struct list_head
struct apei_res *res, *resn, *res_ins = NULL;
unsigned long end = start + size;
+ pr_info("apei_res_add: %p: %lx - %lx\n", res_list, start, end);
+
if (end <= start)
return 0;
repeat:
@@ -346,6 +348,7 @@ static int apei_res_sub(struct list_head
struct list_head *res_list2)
{
struct apei_res *res1, *resn1, *res2, *res;
+ pr_info("apei_res_sub: %p - %p\n", res_list1, res_list2);
res1 = list_entry(res_list1->next, struct apei_res, list);
resn1 = list_entry(res1->list.next, struct apei_res, list);
while (&res1->list != res_list1) {
@@ -386,6 +389,7 @@ static void apei_res_clean(struct list_h
{
struct apei_res *res, *resn;
+ pr_info("apei_res_clean: %p\n", res_list);
list_for_each_entry_safe(res, resn, res_list, list) {
list_del(&res->list);
kfree(res);
--
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