On Tue, 1 Nov 2016 11:32:52 -0700, Cong Wang wrote:
> On Tue, Nov 1, 2016 at 10:28 AM, Jakub Kicinski <kubak...@wp.pl> wrote:
> > unreferenced object 0xffff8807389cba28 (size 128):
> > comm "swapper/0", pid 1, jiffies 4294898463 (age 781.332s)
> > hex dump (first 32 bytes):
> > 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> > 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> > backtrace:
> > [<ffffffff85decad8>] kmemleak_alloc+0x28/0x50
> > [<ffffffff84771246>] __kmalloc+0x206/0x5a0
> > [<ffffffff859e1261>] genl_register_family+0x711/0x11d0
> > [<ffffffff888d9524>] netlbl_mgmt_genl_init+0x10/0x12
> > [<ffffffff888d91e8>] netlbl_netlink_init+0x9/0x26
> > [<ffffffff888d9254>] netlbl_init+0x4f/0x85
> > [<ffffffff840022b7>] do_one_initcall+0xb7/0x2a0
> > [<ffffffff887f9102>] kernel_init_freeable+0x597/0x636
> > [<ffffffff85de7793>] kernel_init+0x13/0x140
> > [<ffffffff85e0246a>] ret_from_fork+0x2a/0x40
>
> Looks like we are missing a kfree(family->attrbuf); on error path,
> but it is not related to Johannes' recent patches.
>
> Could the attached patch help?
>
> Thanks.
Still there:
unreferenced object 0xffff88073fb204e8 (size 64):
comm "swapper/0", pid 1, jiffies 4294898455 (age 88.528s)
hex dump (first 32 bytes):
6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
backtrace:
[<ffffffff93decbf8>] kmemleak_alloc+0x28/0x50
[<ffffffff92771246>] __kmalloc+0x206/0x5a0
[<ffffffff939e1471>] genl_register_family+0x921/0x1270
[<ffffffff968d0ecf>] genl_init+0x11/0x43
[<ffffffff920022b7>] do_one_initcall+0xb7/0x2a0
[<ffffffff967f9102>] kernel_init_freeable+0x597/0x636
[<ffffffff93de78b3>] kernel_init+0x13/0x140
[<ffffffff93e0256a>] ret_from_fork+0x2a/0x40
[<ffffffffffffffff>] 0xffffffffffffffff
etc.
I'm getting this quite reliably on every boot.
