2009/7/27 Thiemo Nagel <thiemo.nagel@xxxxxxxxx>:
> [ 3343.551575]
> [ 3343.551575] -> #0 (&port->mutex){+.+...}:
> [ 3343.551575] [<c104fcbe>] __lock_acquire+0x8af/0xb0c
> [ 3343.551575] [<c104ffc3>] lock_acquire+0xa8/0xc5
> [ 3343.551575] [<c126acb0>] __mutex_lock_common+0x3e/0x390
> [ 3343.551575] [<c126b08b>] mutex_lock_nested+0x29/0x31
> [ 3343.551575] [<f8274322>] option_resume+0xd9/0x16f [option]
> [ 3343.551575] [<f82c282c>] usb_serial_resume+0x1e/0x29 [usbserial]
> [ 3343.551575] [<c11c23b2>] usb_resume_interface+0xbf/0x12a
> [ 3343.551575] [<c11c2813>] usb_resume_both+0xe6/0x108
> [ 3343.551575] [<c11c314e>] usb_external_resume_device+0x2e/0x60
> [ 3343.551575] [<c11c5aa9>] set_level+0xba/0x140
> [ 3343.551575] [<c11a78af>] dev_attr_store+0x1b/0x23
> [ 3343.551575] [<c10f099a>] sysfs_write_file+0xb9/0xe4
> [ 3343.551575] [<c10ae820>] vfs_write+0x84/0xdf
> [ 3343.551575] [<c10ae914>] sys_write+0x3b/0x60
> [ 3343.551575] [<c1002f04>] sysenter_do_call+0x12/0x32
> [ 3343.551575] [<ffffffff>] 0xffffffff
> [ 3343.551575]
port->mutex has been removed from option_resume by Oliver's patch:
http://www.kernel.org/pub/linux/kernel/people/gregkh/gregkh-2.6/patches/usb/usb-serial-full-autosuspend-support-for-the-option-driver.patch
so this may cut off the lock dependency on port->mutex, would you mind
testing against greg-kh tree or next tree?
Thanks.
--
Lei Ming
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