Re: [BUG] workqueues and printk not playing nice since next-20240130

[John Ogness]

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