* Olof Johansson <olof@xxxxxxxxx> [181107 16:17]: > On Wed, Nov 7, 2018 at 8:09 AM Guillaume Tucker > <guillaume.tucker@xxxxxxxxxxxxx> wrote: > > > > On 06/11/2018 10:54, Guillaume Tucker wrote: > > > On 05/11/2018 14:33, Olof Johansson wrote: > > >> On Mon, Nov 5, 2018 at 1:43 AM Guillaume Tucker > > >> <guillaume.tucker@xxxxxxxxxxxxx> wrote: > > >>> > > >>> Hi Linus, > > >>> > > >>> Please see below, the kernelci.org automated boot bisection found > > >>> that the OMAP3 BeagleBoard-xM is failing to boot with SMP > > >>> disabled and PREEMPT enabled in multi_v7_defconfig. There is no > > >>> log output after the bootloader so the kernel seems to be > > >>> crashing very early on. > > >> > > >> Can you enable DEBUG_LL to capture what goes wrong? > > > > > > Yes I've scheduled a re-run of the automated bisection with > > > DEBUG_LL turned on, but the beagle-xm board is currently offline > > > in lab-baylibre. I'll keep you posted when I get some results. > > > > Unfortunately, enabling the DEBUG_LL config didn't help. There's > > still no visible kernel log at all from the failing LAVA jobs: > > > > http://lava.baylibre.com:10080/scheduler/alljobs?length=25&search=lava-bisect-9638#table > > > > > > This might be a hard one to debug without physical access to the > > board, but please let me know if you think there's anything else > > I can try. For example, if there's a known older kernel revision > > where the combination of SMP=n and PREEMPT=y worked then I could > > try to run an automated boot bisection based on that. > > Is this only beagle-xm, or do we see it on all OMAP3 hardware? Seems to not happen on three other omap3 boards I've tried with. Regards, Tony
