linux-kernel - 60 memory leaks.. or is it some thing wrong with kmemleak?

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Message-ID: <4A5C20E5.6010203@fisher-privat.net>
Date:	Tue, 14 Jul 2009 08:08:37 +0200
From:	Alexey Fisher <bug-track@...her-privat.net>
To:	Kernel Testers List <kernel-testers@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: 60 memory leaks.. or is it some thing wrong with kmemleak? 

Hallo all,
i enabled kmemleak and now i get a lot of them...
i do not know if this are real or some noise..
most of the about mounting ext4

unreferenced object 0xffff880133c63800 (size 1024):
   comm "exe", pid 1521, jiffies 4294894652
   backtrace:
     [<ffffffff810f8f36>] create_object+0x126/0x2b0
     [<ffffffff810f91d5>] kmemleak_alloc+0x25/0x60
     [<ffffffff810f32a3>] __kmalloc+0x113/0x200
     [<ffffffff811aa061>] ext4_mb_init+0x1b1/0x570
     [<ffffffff8119b3d2>] ext4_fill_super+0x1de2/0x26d0
     [<ffffffff810fe40f>] get_sb_bdev+0x16f/0x1b0
     [<ffffffff811912f3>] ext4_get_sb+0x13/0x20
     [<ffffffff810fdee6>] vfs_kern_mount+0x76/0x180
     [<ffffffff810fe05d>] do_kern_mount+0x4d/0x120
     [<ffffffff81115e17>] do_mount+0x307/0x880
     [<ffffffff8111641f>] sys_mount+0x8f/0xe0
     [<ffffffff8100b66b>] system_call_fastpath+0x16/0x1b
     [<ffffffffffffffff>] 0xffffffffffffffff
unreferenced object 0xffff8801334db0c0 (size 192):
   comm "exe", pid 1521, jiffies 4294894652
   backtrace:
     [<ffffffff810f8f36>] create_object+0x126/0x2b0
     [<ffffffff810f91d5>] kmemleak_alloc+0x25/0x60
     [<ffffffff810f32a3>] __kmalloc+0x113/0x200
     [<ffffffff811aa061>] ext4_mb_init+0x1b1/0x570
     [<ffffffff8119b3d2>] ext4_fill_super+0x1de2/0x26d0
     [<ffffffff810fe40f>] get_sb_bdev+0x16f/0x1b0
     [<ffffffff811912f3>] ext4_get_sb+0x13/0x20
     [<ffffffff810fdee6>] vfs_kern_mount+0x76/0x180
     [<ffffffff810fe05d>] do_kern_mount+0x4d/0x120
     [<ffffffff81115e17>] do_mount+0x307/0x880
     [<ffffffff8111641f>] sys_mount+0x8f/0xe0
     [<ffffffff8100b66b>] system_call_fastpath+0x16/0x1b
     [<ffffffffffffffff>] 0xffffffffffffffff


and other seems like about control group:


unreferenced object 0xffff88013b852440 (size 544):
   comm "swapper", pid 0, jiffies 4294892296
   backtrace:
     [<ffffffff810f8f36>] create_object+0x126/0x2b0
     [<ffffffff810f91d5>] kmemleak_alloc+0x25/0x60
     [<ffffffff810f24f3>] kmem_cache_alloc+0xf3/0x170
     [<ffffffff8121deff>] idr_pre_get+0x5f/0x90
     [<ffffffff810898c5>] get_new_cssid+0x65/0x120
     [<ffffffff8174f7a3>] cgroup_init+0x6f/0x109
     [<ffffffff8173ad21>] start_kernel+0x3a6/0x3ca
     [<ffffffff8173a315>] x86_64_start_reservations+0x125/0x129
     [<ffffffff8173a3fd>] x86_64_start_kernel+0xe4/0xeb
     [<ffffffffffffffff>] 0xffffffffffffffff
unreferenced object 0xffff88013b852660 (size 544):
   comm "swapper", pid 0, jiffies 4294892296
   backtrace:
     [<ffffffff810f8f36>] create_object+0x126/0x2b0
     [<ffffffff810f91d5>] kmemleak_alloc+0x25/0x60
     [<ffffffff810f24f3>] kmem_cache_alloc+0xf3/0x170
     [<ffffffff8121deff>] idr_pre_get+0x5f/0x90
     [<ffffffff810898c5>] get_new_cssid+0x65/0x120
     [<ffffffff8174f7a3>] cgroup_init+0x6f/0x109
     [<ffffffff8173ad21>] start_kernel+0x3a6/0x3ca
     [<ffffffff8173a315>] x86_64_start_reservations+0x125/0x129
     [<ffffffff8173a3fd>] x86_64_start_kernel+0xe4/0xeb
     [<ffffffffffffffff>] 0xffffffffffffffff
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