FYI, we noticed the following commit (built with gcc-7):
commit: e79f245ddec17bbd89d73cd0169dba4be46c9b55 ("X86/KVM: Properly update 'tsc_offset' to represent the running guest")
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master
in testcase: kvm-unit-tests
with following parameters:
on test machine: 88 threads Intel(R) Xeon(R) CPU E5-2699 v4 @ 2.20GHz with 128G memory
caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):
[31mFAIL[0m vmx_MSR_switch (4 tests, 1 unexpected failures)
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