On Thu, Feb 16, 2017 at 6:22 AM, Koen Vandeputte <koen.vandepu...@ncentric.com> wrote: > Hi Felix, > Hi Tim, > > commit "imx6: move to Linux 4.9 kernel" introduces some regression on wlan > level. > > > When starting wpa_supplicant to initiate an IBSS link, the handshake fails. > Inspecting it reveals that no data packets are transceived (both TX & RX). > > Beacon frames seem to come in, as scanning for networks using wavemon works. > > > I've tested using a plain native LEDE: (version tested: > 53f5d59fa17049d94a3992d1067ded1fa90f61f8) > - Building it for imx6 triggers the regression. > - Only reverting the commit above fixes it. > > > I'll try to dig a bit deeper what is causing this, but please don't remove > support for kernel 4.4 yet for this target. > > > I'll submit a ticket in FS later on if required. > >
Koen, Can you try to disable MSI? I've seen issues with it in the past for IMX6 and I typically leave it disabled as it doesn't buy us anything and can instead hurt performance. If I recall, I think its now 'required' by the IMX6 PCIe driver so it may take a kernel change to disable it. Other than that, how does mainline 4.9 behave and what card/chipset are you using? Tim _______________________________________________ Lede-dev mailing list Lede-dev@lists.infradead.org http://lists.infradead.org/mailman/listinfo/lede-dev
