On Mon, Oct 28, 2019 at 2:06 PM Carlo Pisani <carlojpisani@xxxxxxxxx> wrote: > > > What's your .config file? The knowledge about the host bridge windows > > must be compiled in somewhere. > > here it is > > http://www.downthebunker.com/chunk_of/stuff/public/projects/sonoko-x11/router-board/kernel/k4.4.197-rb532.config > > too long to be attached to this email > > > The UARTs do not have DMA enabled (BusMaster-) in the lspci output, so > > they shouldn't be able to corrupt memory. The NICs *do* have DMA > > enabled. Does the problem still happen if you turn off the NIC > > drivers (via-rhine and ath9k, it looks like)? > > I will recompile the kernel and re-test the router. It's a 48 hours burn-in test It looks like you're using a v4.4-based kernel, which is 3 1/2 years old. In general people are not very interested in debugging kernels that old. It's better if you can reproduce the problem on a current kernel, then backport the fix if you need it in an older kernel. Bjorn