Hi Baruch, > Baruch Siach <bar...@tkos.co.il> hat am 28. Februar 2017 um 19:07 geschrieben: > > > Hi Stefan, > > On Tue, Feb 28, 2017 at 05:21:18PM +0100, Stefan Wahren wrote: > > Am 28.02.2017 um 13:01 schrieb Baruch Siach: > > > On Tue, Feb 28, 2017 at 10:28:10AM +0200, Baruch Siach wrote: > > > > I'm hitting this warning consistently on my Raspberry Pi 3 running > > > > kernel > > > > v4.10.1 with some unrelated device tree changes, and a debug print > > > > (below). > > > > The device identifies as "GlobeTrotter HSDPA Modem", VID: 0af0, PID: > > > > 6971. > > > > The warning triggers consistently on first write access to /dev/ttyHS0 > > > > that > > > > ModemManager attempts. The first line in the log is my debug print. > > > I tested the same hardware successfully on an i.MX6 CuBox-i (ARM32) using > > > the > > > same kernel version (4.10.1), and on an x86_64 PC (4.9). So this seems to > > > be > > > platform specific. I don't have any other ARM64 machine at the moment, > > > though. > > > > those platforms usually doesn't use the dwc2 USB host controller. So it > > should be tested with another dwc2 platform. > > The code that initializes setup_dma is not under drivers/usb/dwc2/. Though > the > problem looks like memory corruption, so its cause might be anywhere.
only a suspicion, but could you please try this patch [1]? [1] - https://patchwork.kernel.org/patch/9166771/
