------- Comment From hegdevas...@in.ibm.com 2020-10-05 10:07 EDT------- (In reply to comment #8) > hi Vasant, > > according to: > - https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1895031 > - https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1895328 > - https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1893115 > "powerpc/pseries: Do not initiate shutdown when system is running on UPS" > has landed on proposed kernels. > > Please, test the kernel in -proposed (Xenial, Bionic and Focal) and update > this bug with the results. > See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to > enable and use -proposed. > Thanks!
I have tested and changes looks good. -Vasant -- 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/1893897 Title: [Regression] Do not initiate shutdown for EPOW_SHUTDOWN_ON_UPS event Status in The Ubuntu-power-systems project: Fix Committed Status in linux package in Ubuntu: Fix Released Status in linux source package in Xenial: Fix Committed Status in linux source package in Bionic: Fix Committed Status in linux source package in Focal: Fix Committed Status in linux source package in Groovy: Fix Released Bug description: 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. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-power-systems/+bug/1893897/+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
