On Fri, Dec 08, 2017 at 12:20:07PM +0000, Mark Brown wrote: > On Thu, Dec 07, 2017 at 03:54:47PM -0800, kernelci.org bot wrote: > > Today's -next failed to boot on peach-pi: > > > exynos_defconfig: > > exynos5800-peach-pi: > > lab-collabora: new failure (last pass: next-20171205) > > with details at https://kernelci.org/boot/id/5a2a2e7859b5141bc2afa17c/ > (including logs and comparisons with other boots, the last good boot was > Wednesday). It looks like it hangs somewhere late on in boot, the last > output on the console is: > > [ 4.827139] smsc95xx 3-1.1:1.0 eth0: register 'smsc95xx' at usb-xhci-hcd.3.auto-1.1, smsc95xx USB 2.0 Ethernet, 94:eb:2c:00:03:c0 > [ 5.781037] dma-pl330 3880000.adma: Loaded driver for PL330 DMAC-241330 > [ 5.786247] dma-pl330 3880000.adma: DBUFF-4x8bytes Num_Chans-6 Num_Peri-16 Num_Events-6 > [ 5.819200] dma-pl330 3880000.adma: PM domain MAU will not be powered off > [ 64.529228] random: crng init done > > and there's failures earlier to instantiate the display. I just noticed that further up the log there's a lockdep splat with a conflict between the genpd and clock API locking - an ABBA issue with genpd->mlock and the clock API prepare_lock.
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