Tested using Linux 6.14.0-1008-oem, the issue is gone. ** Tags removed: verification-needed-noble-linux-oem-6.14 ** Tags added: verification-done-noble-linux-oem-6.14
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/2117224 Title: [USB Hub] Fix hanging issue when resume from suspend on a Dell AIO platform Status in HWE Next: New Status in linux package in Ubuntu: Invalid Status in linux-oem-6.14 package in Ubuntu: Invalid Status in linux source package in Noble: Invalid Status in linux-oem-6.14 source package in Noble: Fix Committed Bug description: [ Impact ] On a certain Dell all-in-one (AIO) platform, we observed a system-hang issue when the system resumed from suspend. This is introduced by the fix [1] from #2115478 -- a delayed_work is introduced in the drivers/usb/core/hub.c. But in this patch, the driver doesn't flush the delayed_work when the system is going to suspend, causing it to be called right after the system resume, which is an uncertain behavior. [ Fix ] The author had launched two fixes [2][3], which fixes the problem introduced by the original fix [1]. These two fixes have already landed on mainline: 1. a49e1e2e785fb362 usb: hub: Fix flushing and scheduling of delayed work that tunes runtime pm 2. 9bd9c8026341f75f usb: hub: Fix flushing of delayed work used for post resume purposes [ Test ] 1. Boot into the Ubuntu OEM-6.14 kernel 2. Suspend the system by running $ sudo systemctl suspend 3. Wake the system up by pressing any key on a keyboard 4. Check whether the system hangs after resuming from suspend [ Where problems could occurs ] These two fixes [2][3] resolve the issue caused by the original fix [1]. It is unlikely to cause regression since these two fixes are quite small. [ Additional Information ] [1] https://lore.kernel.org/all/20250611112441.2267883-1-mathias.ny...@linux.intel.com/ [2] https://lore.kernel.org/all/20250626130102.3639861-2-mathias.ny...@linux.intel.com/ [3] https://lore.kernel.org/all/20250627164348.3982628-2-mathias.ny...@linux.intel.com/ To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/2117224/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
