Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.19 kernel[0].
If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'. If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'. Once testing of the upstream kernel is complete, please mark this bug as "Confirmed". Thanks in advance. [0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.19-rc7 ** Changed in: linux (Ubuntu) Importance: Undecided => High ** Also affects: linux (Ubuntu Bionic) Importance: Undecided Status: New ** Changed in: linux (Ubuntu Bionic) Importance: Undecided => High ** Changed in: linux (Ubuntu Bionic) Status: New => Incomplete ** Tags added: kernel-da-key -- 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/1796217 Title: Qunata server memory stress cause "rcu_sched detected stalls on cpus/tasks" Status in linux package in Ubuntu: Incomplete Status in linux source package in Bionic: Incomplete Bug description: We are facing a problem during the certification test. System always stop at below screen while memory stress. In the following re- producing, kernel seems un-normal and it can’t capture above info into the syslog or kernel log, but the console will show same warning as screen shot attachment file. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1796217/+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
