On Mon, Oct 22, 2012 at 10:37 PM, Alan Stern wrote:
> On Mon, 22 Oct 2012, Ming Lei wrote:
>>
>> + /*
>> + * Don't allocate memory with GFP_KERNEL in current
>> + * context to avoid possible deadlock if usb mass
>> + * storage interface or usbnet interface(iSCSI case)
>> +
On Mon, 22 Oct 2012, Ming Lei wrote:
> If one storage interface or usb network interface(iSCSI case)
> exists in current configuration, memory allocation with
> GFP_KERNEL during usb_device_reset() might trigger I/O transfer
> on the storage interface itself and cause deadlock because
> the 'us->d
If one storage interface or usb network interface(iSCSI case)
exists in current configuration, memory allocation with
GFP_KERNEL during usb_device_reset() might trigger I/O transfer
on the storage interface itself and cause deadlock because
the 'us->dev_mutex' is held in .pre_reset() and the storag
