On 2 June 2017 at 16:24, Russell King - ARM Linux <linux@xxxxxxxxxxxxxxx> wrote: > On Fri, Jun 02, 2017 at 04:16:59PM -0600, Mathieu Poirier wrote: >> Good afternoon Russell and friends, >> >> I noticed that my vexpress-TC2 platform stopped booting when moving to >> kernel v4.12-rc1 (same with -rc2 and 3). The last time things worked >> properly was on v4.11. I did a bisect between v4.11 and v4.12-rc1 and >> ended up on [1], hence this email. >> >> Since CONFIG_ARM_VIRT_EXT is selected by default I removed the >> "#ifdef CONFIG_ARM_VIRT_EXT" section in the last hunk of the patch and >> the system sprung up to life again. > > Hmm, this doesn't make much sense. The code in last hunk of the patch > you refer to should only get run during system shutdown, not during > system boot, so I think something else is going on... > > Please could you test again, this time rather than removing the #ifdef, > add two "mov r0, r0" there? (So replacing the two instructions that > removing the ifdef would have exposed.) That works - by replacing the original code with a couple of "mov r0, r0" the system is able to boot again. > > Thanks. > > -- > RMK's Patch system: http://www.armlinux.org.uk/developer/patches/ > FTTC broadband for 0.8mile line: currently at 9.6Mbps down 400kbps up > according to speedtest.net.
