linux-kernel - 3.0-rc3 kmemleak reports

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Message-ID: <itpou0$leu$1@dough.gmane.org>
Date:	Tue, 21 Jun 2011 11:40:15 +0200
From:	Bernd Schubert <bernd.schubert@...m.fraunhofer.de>
To:	linux-kernel@...r.kernel.org
Subject: 3.0-rc3 kmemleak reports

For some reasons I build a kernel with kmemleak support and got a few 
reports.

(squeeze-x86_64)fslab2:~# cat /sys/kernel/debug/kmemleak

unreferenced object 0xffff8800bf738000 (size 512):
   comm "swapper", pid 1, jiffies 4294892604 (age 48783.440s)
   hex dump (first 32 bytes):
     00 00 00 cc 00 00 00 00 ff ff 3f ce 00 00 00 00  ..........?.....
     c8 e3 49 bf 00 88 ff ff 00 02 00 00 00 00 00 00  ..I.............
   backtrace:
     [<ffffffff813779be>] kmemleak_alloc+0x5e/0xc0
     [<ffffffff8113c3f3>] __kmalloc+0x133/0x1e0
     [<ffffffff812d8ad9>] get_current_resources+0x79/0x1b0
     [<ffffffff8137cdff>] pci_acpi_scan_root+0x14a/0x1a7
     [<ffffffff8137bb30>] acpi_pci_root_add+0x197/0x36b
     [<ffffffff8123179a>] acpi_device_probe+0x50/0x122
     [<ffffffff812a21e7>] really_probe+0x77/0x240
     [<ffffffff812a23eb>] driver_probe_device+0x3b/0x80
     [<ffffffff812a24cb>] __driver_attach+0x9b/0xa0
     [<ffffffff812a14ec>] bus_for_each_dev+0x6c/0xa0
     [<ffffffff812a1f9e>] driver_attach+0x1e/0x20
     [<ffffffff812a1940>] bus_add_driver+0x200/0x2b0
     [<ffffffff812a2b30>] driver_register+0x80/0x150
     [<ffffffff81232705>] acpi_bus_register_driver+0x43/0x45
     [<ffffffff8188df34>] acpi_pci_root_init+0x1e/0x2d
     [<ffffffff81002073>] do_one_initcall+0x43/0x190

unreferenced object 0xffff8801fa6c8948 (size 192):
   comm "swapper", pid 1, jiffies 4294892696 (age 48783.072s)
   hex dump (first 32 bytes):
     00 00 50 df 00 00 00 00 ff ff 6f df 00 00 00 00  ..P.......o.....
     18 1e 7b fa 01 88 ff ff 00 02 00 00 00 00 00 00  ..{.............
   backtrace:
     [<ffffffff813779be>] kmemleak_alloc+0x5e/0xc0
     [<ffffffff8113c3f3>] __kmalloc+0x133/0x1e0
     [<ffffffff812d8ad9>] get_current_resources+0x79/0x1b0
     [<ffffffff8137cdff>] pci_acpi_scan_root+0x14a/0x1a7
     [<ffffffff8137bb30>] acpi_pci_root_add+0x197/0x36b
     [<ffffffff8123179a>] acpi_device_probe+0x50/0x122
     [<ffffffff812a21e7>] really_probe+0x77/0x240
     [<ffffffff812a23eb>] driver_probe_device+0x3b/0x80
     [<ffffffff812a24cb>] __driver_attach+0x9b/0xa0
     [<ffffffff812a14ec>] bus_for_each_dev+0x6c/0xa0
     [<ffffffff812a1f9e>] driver_attach+0x1e/0x20
     [<ffffffff812a1940>] bus_add_driver+0x200/0x2b0
     [<ffffffff812a2b30>] driver_register+0x80/0x150
     [<ffffffff81232705>] acpi_bus_register_driver+0x43/0x45
     [<ffffffff8188df34>] acpi_pci_root_init+0x1e/0x2d
     [<ffffffff81002073>] do_one_initcall+0x43/0x190
unreferenced object 0xffff8801fa7b1e18 (size 16):
   comm "swapper", pid 1, jiffies 4294892696 (age 48783.076s)
   hex dump (first 16 bytes):
     50 43 49 20 42 75 73 20 30 30 30 30 3a 38 30 00  PCI Bus 0000:80.
   backtrace:
     [<ffffffff813779be>] kmemleak_alloc+0x5e/0xc0
     [<ffffffff8113c3f3>] __kmalloc+0x133/0x1e0
     [<ffffffff811f9d17>] kvasprintf+0x57/0x90
     [<ffffffff811f9d88>] kasprintf+0x38/0x40
     [<ffffffff812d8afb>] get_current_resources+0x9b/0x1b0
     [<ffffffff8137cdff>] pci_acpi_scan_root+0x14a/0x1a7
     [<ffffffff8137bb30>] acpi_pci_root_add+0x197/0x36b
     [<ffffffff8123179a>] acpi_device_probe+0x50/0x122
     [<ffffffff812a21e7>] really_probe+0x77/0x240
     [<ffffffff812a23eb>] driver_probe_device+0x3b/0x80
     [<ffffffff812a24cb>] __driver_attach+0x9b/0xa0
     [<ffffffff812a14ec>] bus_for_each_dev+0x6c/0xa0
     [<ffffffff812a1f9e>] driver_attach+0x1e/0x20
     [<ffffffff812a1940>] bus_add_driver+0x200/0x2b0
     [<ffffffff812a2b30>] driver_register+0x80/0x150
     [<ffffffff81232705>] acpi_bus_register_driver+0x43/0x45

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