Thanks for the input, we do detect this on this commit but not its parent. It may be merged into a wrong base branch or something else that we are not aware of. And it's kind difficulty now for us to provide a reproduction step for kexec issue, we will consider this further.
Best Regards, Rong Chen On 8/27/2020 11:49 AM, qianli zhao wrote:
I did not see any exceptions related to my changes,the corresponding macro CONFIG_DEBUG_OBJECTS_KTHREAD is not enabled,so i think the issue has nothing to do with my changes Thanks On Thu, 20 Aug 2020 at 14:26, kernel test robot <rong.a.c...@intel.com> wrote:Greeting, FYI, we noticed the following commit (built with gcc-9): commit: 2e7d8748eba7e32150cbd4f57129ea77d1255892 ("[RFC V2] kthread: add object debug support") url: https://github.com/0day-ci/linux/commits/Qianli-Zhao/kthread-add-object-debug-support/20200812-131719 base: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git fb893de323e2d39f7a1f6df425703a2edbdf56ea in testcase: boot on test machine: 8 threads Intel(R) Core(TM) i7-3770K CPU @ 3.50GHz with 16G memory caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace): kernel boot failed by kexec: user :notice: [32m[ +0.371313] [0m [33mLKP [0m: kexec loading... user :notice: [32m[ +0.007118] [0mkexec --noefi -l /opt/rootfs/tmp/pkg/linux/x86_64-rhel-8.3/gcc-9/2e7d8748eba7e32150cbd4f57129ea77d1255892/vmlinuz-5.8.0-12610-g2e7d8748eba7e --initrd=/opt/rootfs/tmp/initrd-concatenated Thanks, Rong Chen
