A cluster client recently tried to update from Sles11 to Sles12 and found in some cases the boxes would hang in early boot. It came down to console=ttyS1 on the command line. After a bisection I found it happended in here:
commit 835d844d1a28efba81d5aca7385e24c29d3a6db2 Author: Sean Young <[email protected]> Date: Fri Sep 7 19:06:23 2012 +0100 8250_pnp: do pnp probe before legacy probe I found I can revert the part of the patch in 8250.c (now 8250_core.c) and the hangs do not happen. Bios of the offending box ( I don't know if there a bios update ) Version 2.15.1234. Copyright (C) 2012 American Megatrends, Inc. BIOS Date: 02/05/2014 13:45:09 Ver: ma2e2054.16I I don't have much more info but will collect anything that is asked. Any help would be appeciated. Nate
