https://bugzilla.kernel.org/show_bug.cgi?id=216422 Bug ID: 216422 Summary: BUG: kernel NULL pointer dereference, address: 0000000000000000 Product: Drivers Version: 2.5 Kernel Version: 5.18.0-rc1-1-00059-g87d0e2f41b8c Hardware: All OS: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: USB Assignee: drivers_usb@xxxxxxxxxxxxxxxxxxxxxx Reporter: kernel-bugzilla@xxxxxxxxxxxxxx Regression: No Created attachment 301686 --> https://bugzilla.kernel.org/attachment.cgi?id=301686&action=edit dmesg with NULL pointer dereferences. Hi, Several users including me are experiencing an issue with Thinkpads becoming completely unresponsive after several hours. This seems to happen more often shortly after the system has been idle for some time. The issue only occurs when the Thinkpad is already connected to a USB C docking station before booting. dmesg shows regular "BUG: kernel NULL pointer dereference, address: 0000000000000000" that do not cause a crash however. These only show up, when the systemd upower.service is running. In the attached dmesg.txt, I booted with upower.service disabled and started it manually which immediately lead to the NULL pointer dereference (but no crash). We bisected and found the offending commit in https://bbs.archlinux.org/viewtopic.php?id=279027 Please see the attached bisect-log.txt . -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.
