[Bug 2161757] Re: Resolute real-time patchset: 7.0.1-rt2

This bug is awaiting verification that the linux-nvidia- bos/7.0.0-2018.18 kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-resolute-linux-nvidia-bos' to 'verification-done-resolute-linux-nvidia-bos'. If the problem still exists, change the tag 'verification-needed-resolute-linux-nvidia-bos' to 'verification-failed-resolute-linux-nvidia-bos'. If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you! ** Tags added: kernel-spammed-resolute-linux-nvidia-bos-v2 verification-needed-resolute-linux-nvidia-bos -- You received this bug notification because you are subscribed to linux in Ubuntu. Matching subscriptions: Bgg, Bmail, Nb https://bugs.launchpad.net/bugs/2161757 Title: Resolute real-time patchset: 7.0.1-rt2 Status in ubuntu-realtime: In Progress Status in linux package in Ubuntu: In Progress Status in linux-realtime package in Ubuntu: In Progress Status in linux source package in Resolute: In Progress Status in linux-realtime source package in Resolute: In Progress Bug description: [Impact] Starting in resolute, the patches from the PREEMPT_RT patchset are applied to generic so they can be inherited by derivative kernels and flavors that need real-time. PREEMPT_RT 7.0-rc1-rt1 patchset was previously applied ( https://bugs.launchpad.net/ubuntu- realtime/+bug/2143181 ). The patches have been updated with patchset 7.0.1-rt2. This set of patches will be filtered to only ones that apply where we support real-time, including amd64 and arm64. Of those, only two have changed. They were previously dropped due to conflicts, so this effort will reapply the new versions of the patches. [Fix] For kernel 7.0, the upstream PREEMPT_RT patchset 7.0.1-rt2 has been released. https://cdn.kernel.org/pub/linux/kernel/projects/rt/7.0/ The following patches were previously applied and have not changed: UBUNTU: SAUCE: sysfs: Add /sys/kernel/realtime entry UBUNTU: SAUCE: Revert "drm/i915: Depend on !PREEMPT_RT." UBUNTU: SAUCE: drm/i915: Consider RCU read section as atomic. UBUNTU: SAUCE: drm/i915/guc: Consider also RCU depth in busy loop. UBUNTU: SAUCE: drm/i915: Drop the irqs_disabled() check UBUNTU: SAUCE: drm/i915/gt: Use spin_lock_irq() instead of local_irq_disable() + spin_lock() UBUNTU: SAUCE: drm/i915: Disable tracing points on PREEMPT_RT UBUNTU: SAUCE: drm/i915: Don't disable interrupts on PREEMPT_RT during atomic updates UBUNTU: SAUCE: drm/i915: Use preempt_disable/enable_rt() where recommended These patches have been updated and will be applied as part of this patchset: UBUNTU: SAUCE: Reapply "serial: 8250: Revert "drop lockdep annotation from serial8250_clear_IER()"" UBUNTU: SAUCE: Reapply "serial: 8250: Switch to nbcon console" [Test Case] Compile and boot test [Where things could go wrong] These patches primarily apply to the 8250 serial driver, so they may cause minor performance differences in these drivers even when PREEMPT_RT is disabled. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-realtime/+bug/2161757/+subscriptions