Wow, you found it! On Fri, Aug 2, 2019 at 1:59 AM Matthew Dillon <[email protected]> wrote: > > > commit 21cff6dd2604ac705d956cb0ff454fff2e80fa8b > Author: Matthew Dillon <[email protected]> > Date: Thu Aug 1 10:51:55 2019 -0700 > > kernel - Enable busmaster on bridges (BIOS might not) > > * BIOSes do not always enable busmaster on bridges. Make sure > busmaster is enabled on all bridges. > > * Reproduced with an Asus X370-PRO (AM4) motherboard which was not > enabling busmaster on the bridges connecting either the motherboard > IGB or the quad IGB card installed in a slot, but only when booting > EFI. When booting legacy the BIOS did enable busmaster. > > * The characteristics of the failure is that NICs fail to physically > transmit packets and received packets cannot be DMA'd into the rings, > causing the packet error counter to increment once the receive > hardware FIFO is full. > > * Fixes EFI booting on some motherboards. > > Summary of changes: > sys/bus/pci/pci_pci.c | 7 +++++++ > 1 file changed, 7 insertions(+) > > http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/21cff6dd2604ac705d956cb0ff454fff2e80fa8b > > > -- > DragonFly BSD source repository
-- Tomorrow Will Never Die
