On Fri, Jul 26, 2019 at 05:18:01AM -0700, kernelci.org bot wrote:

The past few versions of -next failed to boot on apq8096-db820c:

>     defconfig:
>         gcc-8:
>             apq8096-db820c: 1 failed lab

with an RCU stall towards the end of boot:

00:03:40.521336  [   18.487538] qcom_q6v5_pas adsp-pil: adsp-pil supply px not 
found, using dummy regulator
00:04:01.523104  [   39.499613] rcu: INFO: rcu_preempt detected stalls on 
CPUs/tasks:
00:04:01.533371  [   39.499657] rcu:    2-...!: (0 ticks this GP) 
idle=9ca/1/0x4000000000000000 softirq=1450/1450 fqs=50
00:04:01.537544  [   39.504689]         (detected by 0, t=5252 jiffies, g=2425, 
q=619)
00:04:01.541727  [   39.513539] Task dump for CPU 2:
00:04:01.547929  [   39.519096] seq             R  running task        0   199  
  198 0x00000000

Full details and logs at:

        https://kernelci.org/boot/id/5d3aa7ea59b5142ba868890f/

The last version that worked was from the 15th and there seem to be
similar issues in mainline since -rc1.

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