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[Xen-devel] pvops xen-stable-2.6.32.x, 7 kmemleaks just after boot

from [Sander Eikelenboom] [Permanent Link][Original]
To: Jeremy Fitzhardinge <jeremy@xxxxxxxx>
Subject: [Xen-devel] pvops xen-stable-2.6.32.x, 7 kmemleaks just after boot
From: Sander Eikelenboom <linux@xxxxxxxxxxxxxx>
Date: Tue, 14 Sep 2010 15:33:26 +0200
Cc: "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>, Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
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Hi Jeremy/Konrad,

I Don't know if these kmemleaks are bogus, but they are reported right after 
boot, no domU's started (with memleak detector enabled).

Running:
xen-unstable 4.1                        xen_changeset: Fri Sep 10 19:06:33 2010 
+0100 22132:3985fea87987
pvops xen-stable-2.6.32.x kernel        last commit 
b297cdac0373625d3cd0e6f2b393570dcf2edba6

--
Sander




xentest:/sys/kernel/debug# cat kmemleak
unreferenced object 0xffff88002ff6f7e0 (size 72):
  comm "swapper", pid 1, jiffies 4294667524
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 0e 01 01 00 00 00 00 00  ................
    01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<ffffffff815bd155>] kmemleak_alloc+0x21/0x44
    [<ffffffff81119500>] kmem_cache_alloc+0x136/0x185
    [<ffffffff81285377>] acpi_ut_allocate_object_desc_dbg+0x4c/0x88
    [<ffffffff812853d5>] acpi_ut_create_internal_object_dbg+0x22/0x88
    [<ffffffff81273dbf>] acpi_ex_read_data_from_field+0xf2/0x157
    [<ffffffff81278ce3>] acpi_ex_resolve_node_to_value+0x18f/0x220
    [<ffffffff8127481b>] acpi_ex_resolve_to_value+0x205/0x216
    [<ffffffff8126ecb0>] acpi_ds_evaluate_name_path+0x7a/0xff
    [<ffffffff8126d8ab>] acpi_ds_exec_end_op+0x94/0x3d9
    [<ffffffff8127f78b>] acpi_ps_parse_loop+0x80a/0x98b
    [<ffffffff8127e835>] acpi_ps_parse_aml+0x9a/0x2d9
    [<ffffffff8127ffd2>] acpi_ps_execute_method+0x1dd/0x2ab
    [<ffffffff8127b79a>] acpi_ns_evaluate+0xee/0x1b6
    [<ffffffff8127b964>] acpi_ns_exec_module_code_list+0x102/0x17e
    [<ffffffff812840c4>] acpi_initialize_objects+0x1f/0x59
    [<ffffffff819d1d5b>] acpi_init+0x102/0x2cc
unreferenced object 0xffff88002f040840 (size 32):
  comm "swapper", pid 1, jiffies 4294668379
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<ffffffff815bd155>] kmemleak_alloc+0x21/0x44
    [<ffffffff8111a046>] __kmalloc+0x1c1/0x1ea
    [<ffffffff81056dbf>] kzalloc_node+0xf/0x11
    [<ffffffff8105741a>] get_one_free_irq_cfg+0x1a/0x45
    [<ffffffff8105754e>] arch_init_chip_data+0x1a/0x39
    [<ffffffff815bcb63>] irq_to_desc_alloc_node+0x18d/0x1b7
    [<ffffffff81299cb8>] xen_allocate_pirq+0x99/0x185
    [<ffffffff8103bef3>] xen_register_pirq+0x3e/0x98
    [<ffffffff8103bf8f>] xen_register_gsi+0x42/0xb3
    [<ffffffff810535bd>] acpi_register_gsi+0x22/0x5f
    [<ffffffff812699ed>] acpi_pci_irq_enable+0x11f/0x212
    [<ffffffff8149ddf4>] pcibios_enable_device+0x29/0x2d
    [<ffffffff81243dbe>] do_pci_enable_device+0x28/0x40
    [<ffffffff81243e2b>] __pci_enable_device_flags+0x55/0x70
    [<ffffffff81243e54>] pci_enable_device+0xe/0x10
    [<ffffffff812401f3>] pci_enable_bridges+0x2a/0x4e
unreferenced object 0xffff88002f040860 (size 32):
  comm "swapper", pid 1, jiffies 4294668381
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<ffffffff815bd155>] kmemleak_alloc+0x21/0x44
    [<ffffffff8111a046>] __kmalloc+0x1c1/0x1ea
    [<ffffffff81056dbf>] kzalloc_node+0xf/0x11
    [<ffffffff8105741a>] get_one_free_irq_cfg+0x1a/0x45
    [<ffffffff8105754e>] arch_init_chip_data+0x1a/0x39
    [<ffffffff815bcb63>] irq_to_desc_alloc_node+0x18d/0x1b7
    [<ffffffff81299cb8>] xen_allocate_pirq+0x99/0x185
    [<ffffffff8103bef3>] xen_register_pirq+0x3e/0x98
    [<ffffffff8103bf8f>] xen_register_gsi+0x42/0xb3
    [<ffffffff810535bd>] acpi_register_gsi+0x22/0x5f
    [<ffffffff812699ed>] acpi_pci_irq_enable+0x11f/0x212
    [<ffffffff8149ddf4>] pcibios_enable_device+0x29/0x2d
    [<ffffffff81243dbe>] do_pci_enable_device+0x28/0x40
    [<ffffffff81243e2b>] __pci_enable_device_flags+0x55/0x70
    [<ffffffff81243e54>] pci_enable_device+0xe/0x10
    [<ffffffff812401f3>] pci_enable_bridges+0x2a/0x4e
unreferenced object 0xffff88002c226fe0 (size 32):
  comm "swapper", pid 1, jiffies 4294669476
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<ffffffff815bd155>] kmemleak_alloc+0x21/0x44
    [<ffffffff8111a046>] __kmalloc+0x1c1/0x1ea
    [<ffffffff81056dbf>] kzalloc_node+0xf/0x11
    [<ffffffff8105741a>] get_one_free_irq_cfg+0x1a/0x45
    [<ffffffff8105754e>] arch_init_chip_data+0x1a/0x39
    [<ffffffff815bcb63>] irq_to_desc_alloc_node+0x18d/0x1b7
    [<ffffffff81299cb8>] xen_allocate_pirq+0x99/0x185
    [<ffffffff8103bef3>] xen_register_pirq+0x3e/0x98
    [<ffffffff8103bf8f>] xen_register_gsi+0x42/0xb3
    [<ffffffff810535bd>] acpi_register_gsi+0x22/0x5f
    [<ffffffff812699ed>] acpi_pci_irq_enable+0x11f/0x212
    [<ffffffff8149ddf4>] pcibios_enable_device+0x29/0x2d
    [<ffffffff81243dbe>] do_pci_enable_device+0x28/0x40
    [<ffffffff81243e2b>] __pci_enable_device_flags+0x55/0x70
    [<ffffffff81243e54>] pci_enable_device+0xe/0x10
    [<ffffffff81243ed0>] pcim_enable_device+0x7a/0x9a
unreferenced object 0xffff88002fee71c0 (size 32):
  comm "swapper", pid 1, jiffies 4294669610
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<ffffffff815bd155>] kmemleak_alloc+0x21/0x44
    [<ffffffff8111a046>] __kmalloc+0x1c1/0x1ea
    [<ffffffff81056dbf>] kzalloc_node+0xf/0x11
    [<ffffffff8105741a>] get_one_free_irq_cfg+0x1a/0x45
    [<ffffffff8105754e>] arch_init_chip_data+0x1a/0x39
    [<ffffffff815bcb63>] irq_to_desc_alloc_node+0x18d/0x1b7
    [<ffffffff81299cb8>] xen_allocate_pirq+0x99/0x185
    [<ffffffff8103bef3>] xen_register_pirq+0x3e/0x98
    [<ffffffff8103bf8f>] xen_register_gsi+0x42/0xb3
    [<ffffffff810535bd>] acpi_register_gsi+0x22/0x5f
    [<ffffffff812699ed>] acpi_pci_irq_enable+0x11f/0x212
    [<ffffffff8149ddf4>] pcibios_enable_device+0x29/0x2d
    [<ffffffff81243dbe>] do_pci_enable_device+0x28/0x40
    [<ffffffff81243e2b>] __pci_enable_device_flags+0x55/0x70
    [<ffffffff81243efe>] pci_enable_device_mem+0xe/0x10
    [<ffffffff815c5b0c>] e1000_probe+0x39/0xbcd
unreferenced object 0xffff88002fee7100 (size 32):
  comm "swapper", pid 1, jiffies 4294669610
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<ffffffff815bd155>] kmemleak_alloc+0x21/0x44
    [<ffffffff8111a046>] __kmalloc+0x1c1/0x1ea
    [<ffffffff81056dbf>] kzalloc_node+0xf/0x11
    [<ffffffff8105741a>] get_one_free_irq_cfg+0x1a/0x45
    [<ffffffff8105754e>] arch_init_chip_data+0x1a/0x39
    [<ffffffff815bcb63>] irq_to_desc_alloc_node+0x18d/0x1b7
    [<ffffffff812995cd>] find_unbound_irq+0x68/0xa1
    [<ffffffff81299b3c>] xen_create_msi_irq+0xba/0x19d
    [<ffffffff8103be17>] xen_setup_msi_irqs+0x39/0x87
    [<ffffffff8149c7b6>] xen_pci_setup_msi_irqs+0x34/0x1be
    [<ffffffff81058114>] arch_setup_msi_irqs+0x38/0x138
    [<ffffffff8124d053>] pci_enable_msi_block+0x26c/0x306
    [<ffffffff8137af57>] e1000e_set_interrupt_capability+0xd2/0x114
    [<ffffffff815c5e04>] e1000_probe+0x331/0xbcd
    [<ffffffff8124505b>] local_pci_probe+0x12/0x16
    [<ffffffff812452d9>] pci_device_probe+0x5c/0x86
unreferenced object 0xffff88002ff2da60 (size 32):
  comm "swapper", pid 1, jiffies 4294669729
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<ffffffff815bd155>] kmemleak_alloc+0x21/0x44
    [<ffffffff8111a046>] __kmalloc+0x1c1/0x1ea
    [<ffffffff81056dbf>] kzalloc_node+0xf/0x11
    [<ffffffff8105741a>] get_one_free_irq_cfg+0x1a/0x45
    [<ffffffff8105754e>] arch_init_chip_data+0x1a/0x39
    [<ffffffff815bcb63>] irq_to_desc_alloc_node+0x18d/0x1b7
    [<ffffffff81299cb8>] xen_allocate_pirq+0x99/0x185
    [<ffffffff8103bef3>] xen_register_pirq+0x3e/0x98
    [<ffffffff8103bf8f>] xen_register_gsi+0x42/0xb3
    [<ffffffff810535bd>] acpi_register_gsi+0x22/0x5f
    [<ffffffff812699ed>] acpi_pci_irq_enable+0x11f/0x212
    [<ffffffff8149ddf4>] pcibios_enable_device+0x29/0x2d
    [<ffffffff81243dbe>] do_pci_enable_device+0x28/0x40
    [<ffffffff81243e2b>] __pci_enable_device_flags+0x55/0x70
    [<ffffffff81243e54>] pci_enable_device+0xe/0x10
    [<ffffffff815d3e61>] i801_probe+0x98/0x2b4


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