Larry, On Sunday 14 August 2011 03:39:52 Larry Finger wrote: > Kmemleak shows the following leak in the VB kernel module for version 4.1.0 > r73009 (x86_64): > > unreferenced object 0xffff88006baf1d00 (size 128): > comm "VirtualBox", pid 549, jiffies 4314134921 (age 30845.876s) > hex dump (first 32 bytes): > 19 01 09 18 00 00 00 80 58 00 00 00 58 00 00 00 ........X...X... > 03 01 92 18 0f 32 9c 65 2e 2e 00 00 ad 4e ad de .....2.e.....N.. > backtrace: > [<ffffffff81122d77>] create_object+0x127/0x2b0 > [<ffffffff813580b1>] kmemleak_alloc+0x21/0x50 > [<ffffffff8111cd33>] __kmalloc+0x113/0x1c0 > [<ffffffffa04c21ca>] rtR0MemAllocEx+0x5a/0x160 [vboxdrv] > [<ffffffffa04bff03>] VBoxHost_RTMemAllocTag+0x13/0x30 [vboxdrv] > [<ffffffffa04c4cfb>] VBoxHost_RTSemFastMutexCreate+0x1b/0x90 [vboxdrv] > [<ffffffffa04d7ff4>] g_abExecMemory+0x28f4/0x180000 [vboxdrv] > [<ffffffffa04eaef9>] g_abExecMemory+0x157f9/0x180000 [vboxdrv] > [<ffffffffa04bd619>] supdrvIOCtl+0x11b9/0x2820 [vboxdrv] > [<ffffffffa04b8435>] VBoxDrvLinuxIOCtl+0x135/0x200 [vboxdrv] > [<ffffffff81137de6>] do_vfs_ioctl+0x96/0x550 > [<ffffffff811382ea>] sys_ioctl+0x4a/0x80 > [<ffffffff8136befb>] system_call_fastpath+0x16/0x1b > [<ffffffffffffffff>] 0xffffffffffffffff > > I have not yet tried to find the source of the leak.
is this really a leak? I see similar kmemleak complaints if a VM is started but these complaints vanish as soon as the VM is terminated. Also, I also don't see that the number of the complaints is growing. Kind regards, Frank -- Dr.-Ing. Frank Mehnert Senior Manager Software Development Desktop Virtualization, VirtualBox ORACLE Deutschland B.V. & Co. KG | Werkstr. 24 | 71384 Weinstadt, Germany Hauptverwaltung: Riesstr. 25, D-80992 München Registergericht: Amtsgericht München, HRA 95603 Komplementärin: ORACLE Deutschland Verwaltung B.V. Hertogswetering 163/167, 3543 AS Utrecht, Niederlande Handelsregister der Handelskammer Midden-Niederlande, Nr. 30143697 Geschäftsführer: Jürgen Kunz, Marcel van de Molen, Alexander van der Ven
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