[Bug 1753705] Re: stress-ng will make an Ubuntu on LPAR s390x Bionic system become very slow

2018-03-13 Thread Colin Ian King
** Changed in: stress-ng (Ubuntu) Status: Fix Committed => Fix Released -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1753705 Title: stress-ng will make an Ubuntu on LPAR s390x Bionic system

[Bug 1753705] Re: stress-ng will make an Ubuntu on LPAR s390x Bionic system become very slow

2018-03-07 Thread Po-Hsu Lin
This node has passed with this test without experiencing the same issue. Thanks! -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1753705 Title: stress-ng will make an Ubuntu on LPAR s390x Bionic

[Bug 1753705] Re: stress-ng will make an Ubuntu on LPAR s390x Bionic system become very slow

2018-03-07 Thread Colin Ian King
This occurs because fork/vfork/clone system calls numbers are aliased on this system, so these slipped through the detection of these and we get fork bombing. I've added forking limitation rlimits and CPU limiting as well as more intelligent fork/vfork/clone system call detection before system

[Bug 1753705] Re: stress-ng will make an Ubuntu on LPAR s390x Bionic system become very slow

2018-03-07 Thread Colin Ian King
** Package changed: linux (Ubuntu) => stress-ng (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1753705 Title: stress-ng will make an Ubuntu on LPAR s390x Bionic system become very slow

[Bug 1753705] Re: stress-ng will make an Ubuntu on LPAR s390x Bionic system become very slow

2018-03-06 Thread Po-Hsu Lin
SSH key imported, please find the information in your mailbox. Thanks -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1753705 Title: stress-ng will make an Ubuntu on LPAR s390x Bionic system become

[Bug 1753705] Re: stress-ng will make an Ubuntu on LPAR s390x Bionic system become very slow

2018-03-06 Thread Colin Ian King
Can I get access to this hardware to start to debug this issue? ** Changed in: linux (Ubuntu) Importance: Undecided => High ** Changed in: linux (Ubuntu) Status: Incomplete => In Progress -- You received this bug notification because you are a member of Ubuntu Bugs, which is

[Bug 1753705] Re: stress-ng will make an Ubuntu on LPAR s390x Bionic system become very slow

2018-03-06 Thread Po-Hsu Lin
** Description changed: On an Ubuntu on LPAR s390x node, s2lp4, boot with Bionic kernel. When trying to run the ubuntu_stress_smoke test on it. This test will cause error like: - /home/ubuntu/autotest/client/tests/ubuntu_stress_smoke_test/ubuntu_stress_smoke_test.sh: fork: retry: