I ran the test case on a D06 system w/ the 4.15.0-26.28 kernel and it survived.
** Tags removed: verification-needed-bionic ** Tags added: verification-done-bionic -- 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/1777696 Title: hisi_sas: Failures during host reset Status in linux package in Ubuntu: In Progress Status in linux source package in Bionic: Fix Committed Bug description: [Impact] When error handling progresses to host reset, several issues may prevent the system from recovering, therefore requiring a system power cycle. [Test Case] $ iozone -a & $ while :; do sudo sg_reset --device /dev/sda; sleep 5; done [Fix] There is a race between device removal and host reset which can cause the driver to hang, preventing the user from accessing attached devices until a reboot. Fix this by adding locking around the critical path. After a soft host reset, commands maybe sent to the device before the hardware is ready to receive them. This can result in additional errors when the user access the device. Fix this by blocking commands until the hardware has been reinitialized. Stale PHY events may still get processed by the driver after reset. This can cause e.g. ports to be detached because an old pre-reset "phy down" event gets processed, causing the user to lose access to attached devices. Fix this by filtering out pre-reset PHY events. Resource starvation can occur after a "clear nexus ha" reset. Fix this by releasing those resources during the reset. [Regression Risk] The required fixes are localized to the hisi_sas driver. This driver is only used by two platforms supported by Ubuntu: HiSilicon D05 and HiSilicon D06. We will directly verify these fixes on those platforms. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1777696/+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
