Hi Peter and perf expert, Greeting! Platform: TGL-H There is "__perf_event_overflow" WARNING issue in v6.1-rc5 kernel in guest in double check test. Found first bad commit is ca6c21327c6af02b7eec31ce4b9a740a18c6c13f "perf: Fix missing SIGTRAPs" And revert this commit on top of v6.1-rc5, this issue could not be reproduced. Guest kconfig, reproduce code from syzkaller, and bisect info are in attached. And more detailed info is in link: https://github.com/xupengfe/syzkaller_logs/tree/main/221114_134736___perf_event_overflow If it's helpful and in time, please add the Reported-by tag from me. Thanks! BR.