Comments (2)
Narrowed it down a bit:
pppos_input[2]: got 32 bytes pppos_input[2]: got 32 bytes pppos_input[2]: got 32 bytes pppos_input[2]: got 32 bytes pppos_input[2]: Dropping bad fcs 0x1dbe proto=0x21 pppos_input_drop: pbuf len=1024, addr 0x3f80bb18 pppos_input[2]: got 13 bytes ppp_input[2]: ip in pbuf len=40 pppos_netif_output[2]: proto=0x21, len = 40 pppos_netif_output[2]: proto=0x21, len = 40
Seems to be something overflowing at 1024bytes.
from open-vehicle-monitoring-system-3.
Issue seems to be the gsmmux channel buffer is 1024 bytes (for all). That is less than the MTU so it overflows. Fix is to increase the DATA channel buffer to 2048 bytes, while reducing the other channels to 512 bytes. Overall gain is 512 bytes.
Fix in #1f88516.
from open-vehicle-monitoring-system-3.
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from open-vehicle-monitoring-system-3.