Public bug reported:
I discovered this when running some tests on a core16 image with various rpi3
devices. Rpi3b, b+, cm3, rpi2, etc... don't have this problem, only rpi3a+.
Kernel version:
Linux localhost 4.4.0-1107-raspi2 #115-Ubuntu SMP Wed Apr 10 18:06:42 UTC 2019
armv7l armv7l armv7l GNU/Linux
To reproduce, simply 'cat /sys/devices/platform/soc/driver_override'
The process just hangs and cannot be killed. On other rpi devices, I just get
this output immediately:
(null)
There was nothing in dmesg or syslog when it happened, no kernel crash,
and I can still ssh into the system. The process that ran that command
just silently hangs and can't be killed even with sudo kill -9.
** Affects: linux-raspi2 (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1826228
Title:
api3a+ hang when reading /sys/devices/platform/soc/driver_override
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