FYI, we noticed the following commit (built with gcc-7):
commit: 035845afbe9843c294184a0462288164f1d27553 ("usb: xhci: Cleanup xhci_dbg usages
in unexpected conditions")
git://bee.sh.intel.com/git/blu2/usb.git usb/xhci/dbc/beta-v4-beta-2
in testcase: idle
with following parameters:
runtime: 10m
on test machine: 8 threads Intel(R) Atom(TM) CPU C2750 @ 2.40GHz with 16G memory
caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):
[ 17.612454] xhci_hcd 0000:03:00.0: Failed to enable MWI PCI transaction
To reproduce:
git clone
https://github.com/intel/lkp-tests.git
cd lkp-tests
bin/lkp install job.yaml # job file is attached in this email
bin/lkp run job.yaml
Thanks,
Xiaolong