On Wed, Feb 19, 2020 at 08:16:20AM +0100, BERTRAND Joël wrote: > I have tried to obtain a backtrace without any success. Kernel randomly > crashes. Sometimes, it enters in endless loop (for example when it tries > to allocate PCIE memory), or panics and enters in ddb.
Please at least show concrete panic messages. You could also try options DDB_ONPANIC=0 and see if you get a working crash dump (and a stack trace before it dumps). Martin