On Thu, Jan 07, 2016 at 03:59:58PM +0000, Mark Brown wrote: > On Thu, Jan 07, 2016 at 07:41:52AM -0800, kernelci.org bot wrote: > > > Tree: next > > Branch: local/master > > Git Describe: next-20160107 > > Git Commit: 0f023a298a7d2a8e99c54913f7277b3c08c1f5c9 > > Git URL: git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git > > Tested: 95 unique boards, 25 SoC families, 28 builds out of 135 > > > > Boot Failures Detected: https://kernelci.org/boot/?next-20160107&fail > > For the past couple of days -next has been failing to boot on various > Tegra platforms, there are failures involving either no kernel output or > (with tegra_defconfig) backtraces during CMA allocation from USB, for > example: > > http://storage.kernelci.org/next/next-20160107/arm-tegra_defconfig/lab-khilman/boot-tegra30-beaver.html > > > multi_v7_defconfig+CONFIG_THUMB2_KERNEL=y: > > tegra124-jetson-tk1: 2 failed labs > > tegra30-beaver: 1 failed lab > > > > tegra_defconfig: > > tegra124-jetson-tk1: 2 failed labs > > tegra124-jetson-tk1_rootfs:nfs: 1 failed lab > > tegra124-nyan-big: 1 failed lab > > tegra30-beaver: 1 failed lab > > > > multi_v7_defconfig+CONFIG_ARM_LPAE=y: > > tegra124-jetson-tk1: 1 failed lab > > tegra124-nyan-big: 1 failed lab > > > > multi_v7_defconfig: > > tegra124-jetson-tk1: 2 failed labs > > tegra30-beaver: 1 failed lab > > > > multi_v7_defconfig+CONFIG_LKDTM=y: > > tegra124-jetson-tk1: 2 failed labs > > tegra30-beaver: 1 failed lab > > > > multi_v7_defconfig+CONFIG_PROVE_LOCKING=y: > > tegra124-jetson-tk1: 2 failed labs > > tegra30-beaver: 1 failed lab > > I did bisects yesterday but they were a bit inconclusive, showing a > series of skipped commits in the TTY tree as being the culprits: > > afd7f88f157796e586fc99d62da13a54024e0731 serial: 8250: move of_serial code to 8250 directory > 4e33870b3bb691996354a8f9e8f69458b4fc34d9 serial: of: CONFIG_SERIAL_8250 is always set > d1b5c87fa8058a3f477ae05555916dd1cea934ad serial: remove NWP serial support > > which seems more than a little surprising and like they might be false > positives, especially in the cases that do produce output. The errors > today look the same. I've not investigated further than the bisects. > > Full bisect logs: > > https://ci.linaro.org/view/people/job/tbaker-boot-bisect-bot/140/console > https://ci.linaro.org/view/people/job/tbaker-boot-bisect-bot/141/console These should all be fixed by this patch: serial: 8250: of: Fix the driver and actually compile the 8250_of which can be found in patchwork here: https://patchwork.kernel.org/patch/7883541/ I think this is merely waiting to be picked up into the tty tree. I suspect the reason why there's output in the first place is because of earlyprintk. I've seen recent linux-next work properly, with the serial console hanging at some point (fbcon shows login prompt). If I apply the above patch things are back to normal. Thierry
Attachment:
signature.asc
Description: PGP signature
