On 2024-02-02, "Paul E. McKenney" <paulmck@xxxxxxxxxx> wrote: > So the system really did boot and is running just fine. It is just that > there is no console output. Details, details! > > Is there anything I can do to some combination of workqueues and printk > to help debug this? The printk ringbuffer contents would certainly be interesting. If you build the GDB scripts (CONFIG_GDB_SCRIPTS) then you will have: (gdb) lx-dmesg As an alternative, you could copy the contents of Documentation/admin-guide/kdump/gdbmacros.txt into your .gdbinit and then will have: (gdb) dmesg There may be some hints in the kernel log as to why there is no console output. John
