HI Joseph, Can we please raise the priority of this to get it into Trusty and Vivid as soon as possible? We are seeing more repros of this issue on Azure.
Thanks, Steve -- 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/1498206 Title: Fix CPU lockup on Hyper-V/Azure Status in linux package in Ubuntu: Fix Released Status in linux source package in Trusty: In Progress Status in linux source package in Vivid: In Progress Status in linux source package in Wily: Fix Released Bug description: Description of problem: Large sized VMs with 32 VCPUs and more than 100G memory sometimes hang at boot, and the console keeps printing logs like "soft lockup - CPU#14 stuck for 23s!" This particular issue can be resolved with the following patch upstream: https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git/commit/arch/x86/kernel/cpu?id=88c9281a9fba67636ab26c1fd6afbc78a632374f Repro rate is low. To repro, provision a larger VM (i.e. G5 VM on Azure) and reboot many times, monitoring the console until the "soft lockup - CPU" error is seen. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1498206/+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
