On Fri, Jan 06, 2017 at 01:36:11PM -0800, John Stultz wrote: > On Thu, Jan 5, 2017 at 6:50 PM, Leo Yan <leo.yan@xxxxxxxxxx> wrote: > > When use configfs to configure USB port as as ethernet gadget, the > > kernel has panic with below backtrace; it clearly indicates the > > coherent memory allocation is happened in the interrupt context, > > but the function __get_vm_area_node() is possible to be scheduling > > out so function __get_vm_area_node() triggers panic if it's called > > from interrupt context. > > > > To fix this issue, simply to change gfp_flag from GFP_KERNEL to > > GFP_NOWAIT so it can support to allocate coherent memory from > > interrupt context. > > This looks like it duplicates the similar patch I'm told should be > queued for 4.10-rc3: > https://lkml.org/lkml/2016/12/1/120 Yeah, this patch is duplicate. Please ignore this one. Thanks, Leo Yan -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
