It seems like the SAMA5D36 GMAC driver in sam_gmac.c is running out of TX buffers. I can set a large number of buffers, but it always seems to run out. I get these entries in the log:
[ 402.310000] sam_transmit: Disabling RX interrupts That seems to come from line 769 which notes that it's doing this because it can't transmit due to lack of TX buffers. Immediately afterwards, the transmission stalls, and then a minute later there is a txtimeout fired, the driver restarts, packets can be sent again until it runs out of TX buffers again. So it seems like there might be something wrong here. Could it be my configuration? Or could it be that the GMAC driver is leaking TX buffers? Does anyone have any ideas on how to find the leak? cheers adam On Mon, Feb 10, 2020 at 1:51 PM Adam Feuer <a...@starcat.io> wrote: > Well, at least that is a lot of progress for a day. Going from clueless > >> to pinpointing the failure. >> > > Greg, > > Yes! Thank you for the help. > > cheers > adam > -- > Adam Feuer <a...@starcat.io> > -- Adam Feuer <a...@starcat.io>
