DMA debug trace pointing to rtl8187

[Eric Valette <eric.valette@free.fr>]

------------[ cut here ]------------

WARNING: at /usr/src/linux-2.6.22.9/lib/dma-debug.c:609
check_for_stack+0x6b/0x8b()
Hardware name: P5W DH Deluxe

ehci_hcd 0000:00:1d.7: DMA-API: device driver maps memory fromstack
[addr=ffff88007fa79968]
Modules linked in:

Pid: 297, comm: khubd Not tainted 2.6.30-rc4-git1 #32

Call Trace:

 [<ffffffff802331c2>] warn_slowpath+0xd3/0x107

 [<ffffffff803e4740>] ? soft_cursor+0x1a0/0x1b4

 [<ffffffff804f3c68>] ? ehci_qtd_alloc+0x18/0x5b

 [<ffffffff80229e89>] ? update_curr+0x4f/0xe2

 [<ffffffff8022a66b>] ? dequeue_task_fair+0x4a/0x1b3

 [<ffffffff8022f304>] ? finish_task_switch+0x51/0xac

 [<ffffffff8064e242>] ? thread_return+0x3e/0xaf

 [<ffffffff803c598f>] check_for_stack+0x6b/0x8b

 [<ffffffff803c6c4d>] debug_dma_map_page+0xfa/0x11f

 [<ffffffff804e4396>] usb_hcd_submit_urb+0x296/0x938

 [<ffffffff803b553c>] ? kobject_set_name_vargs+0x4f/0x58

 [<ffffffff8044ffa2>] ? dev_set_name+0x64/0x66

 [<ffffffff8064e242>] ? thread_return+0x3e/0xaf

 [<ffffffff804e4f32>] usb_submit_urb+0x20b/0x222

 [<ffffffff804e5f6f>] usb_start_wait_urb+0x4a/0xb7

 [<ffffffff804e61d3>] usb_control_msg+0xcf/0xf1

 [<ffffffff806419b0>] rtl8187_probe+0x1b5/0x7e8

 [<ffffffff804bc668>] ? rtl8187_eeprom_register_read+0x0/0x82

 [<ffffffff804bc478>] ? rtl8187_eeprom_register_write+0x0/0x95

 [<ffffffff804e7815>] ? usb_autopm_do_device+0xd1/0xdd

 [<ffffffff804e81a2>] usb_probe_interface+0x114/0x16d

 [<ffffffff80452e79>] driver_probe_device+0x9b/0x140

 [<ffffffff80452f99>] ? __device_attach+0x0/0x3c

 [<ffffffff80452fcc>] __device_attach+0x33/0x3c

 [<ffffffff804524ac>] bus_for_each_drv+0x51/0x87

 [<ffffffff80453057>] device_attach+0x5e/0x73

 [<ffffffff804522e1>] bus_attach_device+0x25/0x5b

 [<ffffffff8045104c>] device_add+0x47f/0x5d5

 [<ffffffff804e6e5a>] usb_set_configuration+0x4f4/0x55b

 [<ffffffff804ee876>] generic_probe+0x56/0xa0

 [<ffffffff804e70a7>] usb_probe_device+0x33/0x35

 [<ffffffff80452e79>] driver_probe_device+0x9b/0x140

 [<ffffffff80452f99>] ? __device_attach+0x0/0x3c

 [<ffffffff80452fcc>] __device_attach+0x33/0x3c

 [<ffffffff804524ac>] bus_for_each_drv+0x51/0x87

 [<ffffffff80453057>] device_attach+0x5e/0x73

 [<ffffffff804522e1>] bus_attach_device+0x25/0x5b

 [<ffffffff8045104c>] device_add+0x47f/0x5d5

 [<ffffffff804e1088>] usb_new_device+0x66/0xc6

 [<ffffffff804e25e6>] hub_thread+0xb56/0x10e0

 [<ffffffff80245e2e>] ? autoremove_wake_function+0x0/0x38

 [<ffffffff804e1a90>] ? hub_thread+0x0/0x10e0

 [<ffffffff804e1a90>] ? hub_thread+0x0/0x10e0

 [<ffffffff80245a9a>] kthread+0x56/0x83

 [<ffffffff8020beea>] child_rip+0xa/0x20

 [<ffffffff80245a44>] ? kthread+0x0/0x83

 [<ffffffff8020bee0>] ? child_rip+0x0/0x20

-- eric