linux-kernel - process_zones() kmemleak on 2.6.31-rc8

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Date:	Fri, 4 Sep 2009 17:06:39 -0700
From:	"Luis R. Rodriguez" <mcgrof@...il.com>
To:	linux-mm@...ck.org
Cc:	Catalin Marinas <catalin.marinas@....com>,
	linux-kernel@...r.kernel.org
Subject: process_zones() kmemleak on 2.6.31-rc8

I get these kmemleak reports on 2.6.31-rc8 + Catalin's
git://linux-arm.org/linux-2.6 kmemleak branch. This kmemleak report
sticks there even after further scans issued manually.

unreferenced object 0xffff88003e001040 (size 64):
  comm "swapper", pid 0, jiffies 4294892296
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00  ................
    50 10 00 3e 00 88 ff ff 50 10 00 3e 00 88 ff ff  P..>....P..>....
  backtrace:
    [<ffffffff814e9d55>] kmemleak_alloc+0x25/0x60
    [<ffffffff81118a83>] kmem_cache_alloc_node+0x193/0x200
    [<ffffffff814fa09e>] process_zones+0x70/0x1cd
    [<ffffffff8180d4c5>] setup_per_cpu_pageset+0x11/0x27
    [<ffffffff817f0016>] start_kernel+0x371/0x415
    [<ffffffff817ef61a>] x86_64_start_reservations+0x125/0x129
    [<ffffffff817ef718>] x86_64_start_kernel+0xfa/0x109
    [<ffffffffffffffff>] 0xffffffffffffffff
unreferenced object 0xffff88003e0015c0 (size 64):
  comm "swapper", pid 1, jiffies 4294892353
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00  ................
    d0 15 00 3e 00 88 ff ff d0 15 00 3e 00 88 ff ff  ...>.......>....
  backtrace:
    [<ffffffff814e9d55>] kmemleak_alloc+0x25/0x60
    [<ffffffff81118a83>] kmem_cache_alloc_node+0x193/0x200
    [<ffffffff814fa09e>] process_zones+0x70/0x1cd
    [<ffffffff814fa230>] pageset_cpuup_callback+0x35/0x92
    [<ffffffff815019b7>] notifier_call_chain+0x47/0x90
    [<ffffffff81078559>] __raw_notifier_call_chain+0x9/0x10
    [<ffffffff814f8f25>] _cpu_up+0x75/0x130
    [<ffffffff814f903a>] cpu_up+0x5a/0x6a
    [<ffffffff817ef97e>] kernel_init+0xcc/0x1ba
    [<ffffffff810130ca>] child_rip+0xa/0x20
    [<ffffffffffffffff>] 0xffffffffffffffff

  Luis
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