Don't have machine to verify the issue now, but confirmed the commit exists in jammy and lunar kernels.
** Tags removed: verification-needed-jammy verification-needed-lunar ** Tags added: verification-done-jammy verification-done-lunar -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-oem-6.0 in Ubuntu. https://bugs.launchpad.net/bugs/2018566 Title: A deadlock issue in scsi rescan task while resuming from S3 Status in HWE Next: New Status in linux package in Ubuntu: In Progress Status in linux-oem-6.0 package in Ubuntu: Invalid Status in linux-oem-6.1 package in Ubuntu: Invalid Status in linux source package in Jammy: Fix Committed Status in linux-oem-6.0 source package in Jammy: Won't Fix Status in linux-oem-6.1 source package in Jammy: Fix Released Status in linux source package in Lunar: Fix Committed Status in linux-oem-6.0 source package in Lunar: Invalid Status in linux-oem-6.1 source package in Lunar: Invalid Status in linux source package in Mantic: In Progress Status in linux-oem-6.0 source package in Mantic: Invalid Status in linux-oem-6.1 source package in Mantic: Invalid Bug description: [Impact] During the S3 stress test, the system sometimes hangs when resuming. This is due to the SCSI rescan task being unable to acquire the mutex lock during the resumption from S3. The mutex lock has already been acquired by EH and is waiting for the device to be ready for a rescan. Unfortunately, the mutex lock is never released by either party, leading to a deadlock. [Fix] Kaiheng submitted a patch to fix this issue which defers the rescan if the disk is still suspended so the resume process of the disk device can proceed. https://patchwork.ozlabs.org/project/linux-ide/patch/20230502150435.423770-2-kai.heng.f...@canonical.com/ Since the patch has not been accepted by the upstream yet, so submit it to the OEM kernel for now. The similiar patch has been included in v6.4-rc7 6aa0365a3c85 ata: libata-scsi: Avoid deadlock on rescan after device resume [Test] Verified on the machines by me and ODM. [Where problems could occur] It only defers the rescan task, and should not have any impact to current systems. To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/2018566/+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
