FYI, we noticed the following commit:

commit: 601b26a867a514b6d43e85a6b0dad937a41feed6 ("irqdomain: Avoid activating interrupts more than once")
url: https://github.com/0day-ci/linux/commits/Marc-Zyngier/irqdomain-Avoid-activating-interrupts-more-than-once/20170118-033226


in testcase: boot

on test machine: qemu-system-x86_64 -enable-kvm -m 320M

caused kernel hang after below dmesg (please refer to attached dmesg/kmsg for entire log/backtrace):


+-------------------------------+------------+------------+
|                               | 4b19a9e20b | 601b26a867 |
+-------------------------------+------------+------------+
| boot_successes                | 8          | 0          |
| boot_failures                 | 0          | 12         |
| BUG:kernel_hang_in_boot_stage | 0          | 12         |
+-------------------------------+------------+------------+

[    0.244010]  apic 0 pin 16 not connected
[    0.244905]  apic 0 pin 17 not connected
[    0.245795]  apic 0 pin 18 not connected
[    0.246713]  apic 0 pin 19 not connected
[    0.247609]  apic 0 pin 20 not connected
[    0.248496]  apic 0 pin 21 not connected
[    0.249381]  apic 0 pin 22 not connected
[    0.250294]  apic 0 pin 23 not connected
[    0.251333] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1
[    0.252428] Using local APIC timer interrupts.
[    0.252428] calibrating APIC timer ...
---------------- [kernel hang] -------------




To reproduce:

        git clone git://git.kernel.org/pub/scm/linux/kernel/git/wfg/lkp-tests.git
        cd lkp-tests
        bin/lkp qemu -k <bzImage> job-script  # job-script is attached in this email



Thanks,
Xiaolong