Messages in this thread | | | Date | Thu, 3 Nov 2016 14:04:27 +0000 | From | Jakub Kicinski <> | Subject | Re: [PATCH] userns: suppress kmemleak message |
| |
On Wed, 2 Nov 2016 22:39:48 -0700, Dmitry Torokhov wrote: > We do not ever intend to unregister "user" sysctl table, unfortunately > it leads kmemleak to believe that we are leaking memory: > > unreferenced object 0xffff8807383bfd48 (size 96): > comm "swapper/0", pid 1, jiffies 4294894636 (age 278.320s) > hex dump (first 32 bytes): > a0 b4 b0 ba ff ff ff ff 00 00 00 00 01 00 00 00 ................ > 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ > backtrace: > [<ffffffffb7de59e8>] kmemleak_alloc+0x28/0x50 > [<ffffffffb676e2f6>] __kmalloc+0x206/0x5a0 > [<ffffffffb69be2d3>] __register_sysctl_table+0xb3/0x1130 > [<ffffffffb69bf36b>] register_sysctl+0x1b/0x20 > [<ffffffffba840de1>] user_namespace_sysctl_init+0x17/0x4c > [<ffffffffb60022b7>] do_one_initcall+0xb7/0x2a0 > [<ffffffffba7eb102>] kernel_init_freeable+0x597/0x636 > [<ffffffffb7de0433>] kernel_init+0x13/0x140 > [<ffffffffb7dfb36a>] ret_from_fork+0x2a/0x40t show > [<ffffffffffffffff>] 0xffffffffffffffff > > Let's annotate the pointer as kmemleak_not_leak() to suppress the > kmemleak false positive. > > Reported-by: Jakub Kicinski <kubakici@wp.pl> > Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> > --- > > This was only compiled; Jakub, could you give it a spin?
Tested-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Thanks!
| |