Greeting,

FYI, we noticed the following commit (built with gcc-11):

commit: 6922110d152e56d7569616b45a1f02876cf3eb9f ("net: linkwatch: fix failure to restore device state across suspend/resume")
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master

in testcase: suspend-stress
version: 
with following parameters:

	mode: freeze
	iterations: 10



on test machine: 4 threads Ivy Bridge with 4G memory

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




If you fix the issue, kindly add following tag
Reported-by: kernel test robot <oliver.sang@intel.com>


Suspend to freeze 1/10:
Done
Suspend to freeze 2/10:
network not ready
network not ready
network not ready
network not ready
network not ready
network not ready
network not ready
network not ready
network not ready
network not ready
network not ready
Done
Suspend to freeze 3/10:
network not ready
network not ready
network not ready
network not ready
network not ready
network not ready
network not ready
network not ready
network not ready
network not ready
network not ready
network not ready
network not ready
network not ready
Done
Suspend to freeze 4/10:
network not ready
network not ready
network not ready
network not ready
network not ready
network not ready
network not ready
network not ready
network not ready
network not ready
network not ready
network not ready
network not ready
network not ready
Done
Suspend to freeze 5/10:
network not ready
network not ready
network not ready
network not ready
network not ready
network not ready
network not ready
network not ready
network not ready
network not ready
network not ready
network not ready
network not ready
Done
Suspend to freeze 6/10:
network not ready
network not ready
network not ready
network not ready
network not ready
network not ready
network not ready
network not ready
network not ready
network not ready
network not ready
network not ready
network not ready
network not ready
Done
Suspend to freeze 7/10:
network not ready
network not ready
network not ready
network not ready
network not ready
network not ready
network not ready
network not ready
network not ready
network not ready
network not ready
Done
Suspend to freeze 8/10:
network not ready
network not ready
network not ready
network not ready
network not ready
network not ready
network not ready
network not ready
network not ready
network not ready
network not ready
network not ready
network not ready
Done
Suspend to freeze 9/10:
network not ready
network not ready
network not ready
network not ready
network not ready
network not ready
network not ready
network not ready
network not ready
network not ready
network not ready
network not ready
network not ready
Done
Suspend to freeze 10/10:
network not ready
network not ready
network not ready
network not ready
network not ready
network not ready
network not ready
network not ready
network not ready
network not ready
network not ready
network not ready
network not ready
network not ready



To reproduce:

        git clone https://github.com/intel/lkp-tests.git
        cd lkp-tests
        sudo bin/lkp install job.yaml           # job file is attached in this email
        bin/lkp split-job --compatible job.yaml # generate the yaml file for lkp run
        sudo bin/lkp run generated-yaml-file

        # if come across any failure that blocks the test,
        # please remove ~/.lkp and /lkp dir to run from a clean state.



-- 
0-DAY CI Kernel Test Service
https://01.org/lkp