https://bugzilla.kernel.org/show_bug.cgi?id=218546 Bug ID: 218546 Summary: xhci_hcd prevents hibernate/S4 suspend from working on several systems Product: Drivers Version: 2.5 Kernel Version: 6.8.0-rc5 Hardware: All OS: Linux Status: NEW Severity: normal Priority: P3 Component: USB Assignee: drivers_usb@xxxxxxxxxxxxxxxxxxxxxx Reporter: todd.e.brandt@xxxxxxxxx Blocks: 178231 Regression: No Created attachment 305940 --> https://bugzilla.kernel.org/attachment.cgi?id=305940&action=edit lenb-Dell-XPS-13-9300_disk.html When running disk suspend on certain platforms the xhci_hcd USB3,0 hub controller device prevents hibernate by aborting suspend. The test is initiated with this command: $> sudo sleepgraph -m disk-platform -rtcwake 60 -dev This essentially performs these two commands to issue the suspend: $> echo platform > /sys/power/disk $> echo disk > /sys/pwoer/state The dmesg log shows the error where suspends is aborted: xhci_hcd 0000:00:14.0: PM: pci_pm_freeze(): hcd_pci_suspend+0x0/0x20 returns -16 xhci_hcd 0000:00:14.0: PM: dpm_run_callback(): pci_pm_freeze+0x0/0xd0 returns -16 xhci_hcd 0000:00:14.0: PM: failed to freeze async: error -16 usb usb1: root hub lost power or was reset usb usb2: root hub lost power or was reset PM: hibernation: Basic memory bitmaps freed PM: hibernation: hibernation exit I'm attaching 3 sleepgraph timelines from three different production machines where this happened, so it's not endemic to just one manufacturer. The dmesg logs are in the timeline itself, just click the dmesg button in the upper left corner. The log button in the upper left corner shows all kinds of system details. Referenced Bugs: https://bugzilla.kernel.org/show_bug.cgi?id=178231 [Bug 178231] Meta-bug: Linux suspend-to-mem and freeze performance optimization -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.
