** Also affects: linux (Ubuntu) Importance: Undecided Status: New
** Also affects: linux (Ubuntu Impish) Importance: Undecided Status: New ** Also affects: linux (Ubuntu Focal) Importance: Undecided Status: New ** Also affects: linux (Ubuntu Hirsute) Importance: Undecided Status: New ** Changed in: linux (Ubuntu Focal) Status: New => Confirmed -- 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/1932117 Title: Lots of hisi_qm zombie task slow down system after stress test Status in kunpeng920: New Status in kunpeng920 ubuntu-18.04-hwe series: New Status in kunpeng920 ubuntu-20.04 series: New Status in linux package in Ubuntu: New Status in linux source package in Focal: Confirmed Status in linux source package in Hirsute: New Status in linux source package in Impish: New Bug description: [Bug Description] With focal 5.4 kernel, crypto driver does not clean up its created process when calculation is done. Many zombie processes slow down system. e.g. Takes more then 10sec for ssh connection. [Steps to Reproduce] 1) Install Ubuntu 20.04 with GA (5.4) kernel 2) sudo apt install -y stress-ng 3) stress-ng --aggressive --verify --timeout 300 --metrics-brief --tz --times --af-alg 0 4) ps aux | grep hisi_qm | wc -l [Actual Results] >100000 [Expected Results] <100 [Reproducibility] 100% [Additional information] Can not reproduce with focal HWE (5.8) kernel. [Resolution] To manage notifications about this bug go to: https://bugs.launchpad.net/kunpeng920/+bug/1932117/+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