From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mark Jackson Subject: ARM: AM335x: Reboot broken in 3.11 Date: Thu, 08 Aug 2013 14:50:18 +0100 Message-ID: <5203A21A.4060806@newflow.co.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: Sender: linux-kernel-owner@vger.kernel.org To: "linux-omap@vger.kernel.org" Cc: lkml List-Id: linux-omap@vger.kernel.org Rebooting appears to have broken in 3.11 (at some point before rc1). Here is the console output:- [ 0.000000] Booting Linux on physical CPU 0x0 [ 0.000000] Linux version 3.11.0-rc1-00006-gf550793 (mpfj@mpfj-nanobone) (gcc version 4.6.3 (Buildroot 2013.02-dirty) ) #328 Thu Aug 8 14:36:16 BST 2013 ... Welcome to Buildroot nanobone login: root Password: # reboot # [ 23.867076] UBIFS: background thread "ubifs_bgt0_0" stops The system is going down NOW! Sent SIGTERM to all processes Sent SIGKILL to all processes Requesting system reboot [ 25.924496] reboot: Restarting system ... and at this point the CPU seems to just freeze. In 3v10, the board would reboot correctly back into uboot, etc. I've also noticed that some of the output LEDs light up dim when the kernel is booting on, and they come on full brightness at the reboot "freeze" point. There are 4 LEDs affected and they are all connected to UART transmit pins. Before I start bisecting, does anyone have any ideas ? Cheers Mark J.