Hi Xinwei, I build kernel for testing on bug 1932117 and bug 1943301 with 4 patches backported.
https://kernel.ubuntu.com/~ikepanhc/lp1943301.1/ d0228aeb4d65 crypto: hisilicon/sec2 - update SEC initialization and reset a13c97118749 crypto: hisilicon/sec2 - Add workqueue for SEC driver. 57ca81245f4d crypto: hisilicon - Use one workqueue per qm instead of per qp eaebf4c3b103 crypto: hisilicon - Unify hardware error init/uninit into QM Please test to see if there is any risk found. I will run full checkbox test too. -- 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: Incomplete Status in kunpeng920 ubuntu-18.04-hwe series: Incomplete Status in kunpeng920 ubuntu-20.04 series: Incomplete Status in linux package in Ubuntu: Invalid Status in linux source package in Focal: In Progress Status in linux source package in Hirsute: Invalid Status in linux source package in Impish: Invalid Bug description: [Impact] hisi_qm does not clean up kernel process after calculation is done. Many zombie processes slow down system. After checkbox cpu stress test, it takes more then 2min to ssh in. [Test Plan] 1) stress-ng --aggressive --verify --timeout 300 --metrics-brief --tz --times --af-alg 0 2) ps aux | grep hisi_qm | wc -l Expected result is less then 100 [Regression Risk] hisi_qm only affects kunpeng920 platform. Minimal risk for other platform, and full regression test is needed on kunpeng920. ======================= [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
