Public bug reported:
Ubuntu 16.04.1
Kernel = 4.4.0-53-generic-74-Ubuntu ppc64le
When running the stress-ng "fstat" stressor, it is trying to access the
USB bus and giving a call trace and locking up any further USB activity
(lsusb hangs). This only seems to occur so far on openpower(Firestone
and Garrison) where there is a virtual USB keyboard and mouse built into
the BMC.
>From lsusb(before crashing): Bus 001 Device 004: ID 046b:ff10 American
Megatrends, Inc. Virtual Keyboard and Mouse
Another openpower server(Briggs) has no virtual usb devices and does not
experience the failure.
Please see attached kern.log and dmesg output for further details.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: Incomplete
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https://bugs.launchpad.net/bugs/1652132
Title:
Call trace when testing fstat stressor on ppc64el with virtual
keyboard and mouse present
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