Activity log for bug #1893897

Date Who What changed Old value New value Message
2020-09-02 06:29:17 bugproxy bug added bug
2020-09-02 06:29:19 bugproxy tags architecture-ppc64le bugnameltc-187995 severity-critical targetmilestone-inin16046
2020-09-02 06:29:20 bugproxy ubuntu: assignee Ubuntu on IBM Power Systems Bug Triage (ubuntu-power-triage)
2020-09-02 06:29:25 bugproxy affects ubuntu kernel-package (Ubuntu)
2020-09-02 06:50:11 Frank Heimes affects kernel-package (Ubuntu) linux (Ubuntu)
2020-09-02 06:50:41 Frank Heimes bug task added ubuntu-power-systems
2020-09-02 06:51:09 Frank Heimes ubuntu-power-systems: assignee Ubuntu on IBM Power Systems Bug Triage (ubuntu-power-triage)
2020-09-02 07:00:13 Frank Heimes nominated for series Ubuntu Xenial
2020-09-02 07:00:13 Frank Heimes bug task added linux (Ubuntu Xenial)
2020-09-02 07:00:13 Frank Heimes nominated for series Ubuntu Groovy
2020-09-02 07:00:13 Frank Heimes bug task added linux (Ubuntu Groovy)
2020-09-02 07:00:13 Frank Heimes nominated for series Ubuntu Bionic
2020-09-02 07:00:13 Frank Heimes bug task added linux (Ubuntu Bionic)
2020-09-02 07:00:13 Frank Heimes nominated for series Ubuntu Focal
2020-09-02 07:00:13 Frank Heimes bug task added linux (Ubuntu Focal)
2020-09-02 07:00:24 Frank Heimes linux (Ubuntu Groovy): status New Fix Released
2020-09-02 07:02:00 Frank Heimes ubuntu-power-systems: importance Undecided Critical
2020-09-09 16:27:28 Andrew Cloke ubuntu-power-systems: assignee Ubuntu on IBM Power Systems Bug Triage (ubuntu-power-triage) Patricia Domingues (patriciasd)
2020-09-09 16:27:32 Andrew Cloke ubuntu-power-systems: status New In Progress
2020-09-14 15:17:42 Patricia Domingues description == Comment: #0 - VASANT HEGDE <hegdevasant@in.ibm.com> - 2020-09-02 01:00:25 == --Problem Description--- Do not initiate shutdown for EPOW_SHUTDOWN_ON_UPS event. Instead wait for predefined time before initiating shtudown. Contact Information = Vasant hegde <hegdevasant@linux.vnet.ibm.com? ---uname output--- Ubuntu 16.04 Machine Type = All Power System Upstream commit : commit 90a9b102eddf6a3f987d15f4454e26a2532c1c98 Author: Vasant Hegde <hegdevasant@linux.vnet.ibm.com> Date: Thu Aug 20 11:48:44 2020 +0530 powerpc/pseries: Do not initiate shutdown when system is running on UPS Note that I have requested this fix for upstream v4.4 stable tree. This will hit stable tree soon. This is impacting all kernel after v4.0. This is critical fix. Hence I'd like to request to backport to Ubuntu 16.04 LTS release. -Vasant SRU Justification: [Impact] * With commit 79872e35469b "powerpc/pseries: All events of EPOW_SYSTEM_SHUTDOWN must initiate shutdown" it was introduced that all EPOW_SYSTEM_SHUTDOWN events cause immediate shutdowns. * But on LPARs there is a user space tool (rtas_errd) that monitor for EPOW_SHUTDOWN_ON_UPS events. * Once rtas_errd gets an event it initiates a shutdown after predefined time. * Therefore immediate shutdowns must not be triggered if the system is running on UPS (means for EPOW_SHUTDOWN_ON_UPS events). [Fix] * 90a9b102eddf6a3f987d15f4454e26a2532c1c98 90a9b102eddf "powerpc/pseries: Do not initiate shutdown when system is running on UPS" [Test Case] * Setup a Power system on (D)LPAR and run it on UPS with Ubuntu 16.04 or higher (kernel 4.x is needed). * Verify that the user space tool (rtas_errd) is active and running. * Define a time for a potential shutdown in case an EPOW_SHUTDOWN_ON_UPS event occurs. * Trigger an EPOW_SHUTDOWN_ON_UPS event. * Verify if the system got shutdown immediately - or after the pre-defined time. [Regression Potential] * The regression risk is very low, because of the very limited modification in a case statement for EPOW_SHUTDOWN_ON_UPS events. * What may happen is that the system doesn't power off anymore if running on UPS due to the EPOW_SHUTDOWN_ON_UPS case changes - especially if there is a potential problem with rtas_errd that should monitor for these events and should initiate the delayed shutdown. * Other than that I cannot see much potential harm. [Other] * The patch got upstream accepted in v5.9-rc2 and already landed in groovy's kernel 'Ubuntu-5.8.0-18.19', based on the v5.8.4 upstream stable release ticket LP 1893048.
2020-09-16 05:28:07 Frank Heimes linux (Ubuntu Xenial): status New In Progress
2020-09-16 05:28:10 Frank Heimes linux (Ubuntu Bionic): status New In Progress
2020-09-16 05:28:14 Frank Heimes linux (Ubuntu Focal): status New In Progress
2020-09-16 05:28:30 Frank Heimes linux (Ubuntu Groovy): assignee Ubuntu on IBM Power Systems Bug Triage (ubuntu-power-triage) Canonical Kernel Team (canonical-kernel-team)
2020-09-16 05:28:41 Frank Heimes linux (Ubuntu Focal): assignee Canonical Kernel Team (canonical-kernel-team)
2020-09-16 05:28:46 Frank Heimes linux (Ubuntu Groovy): assignee Canonical Kernel Team (canonical-kernel-team)
2020-09-16 05:28:54 Frank Heimes linux (Ubuntu Bionic): assignee Canonical Kernel Team (canonical-kernel-team)
2020-09-16 05:29:06 Frank Heimes linux (Ubuntu Xenial): assignee Canonical Kernel Team (canonical-kernel-team)
2020-09-17 21:03:46 Kelsey Steele linux (Ubuntu Bionic): status In Progress Fix Committed
2020-09-17 21:03:48 Kelsey Steele linux (Ubuntu Focal): status In Progress Fix Committed
2020-09-17 21:03:50 Kelsey Steele linux (Ubuntu Xenial): status In Progress Fix Committed
2020-09-18 04:30:36 Frank Heimes ubuntu-power-systems: status In Progress Fix Committed
2020-10-14 10:25:01 Frank Heimes linux (Ubuntu Focal): status Fix Committed Fix Released
2020-10-14 10:25:04 Frank Heimes linux (Ubuntu Bionic): status Fix Committed Fix Released
2020-10-14 10:25:08 Frank Heimes linux (Ubuntu Xenial): status Fix Committed Fix Released
2020-10-14 10:25:13 Frank Heimes ubuntu-power-systems: status Fix Committed Fix Released