As bionic already ships a v4.15 kernel, this should be fixed in bionic. Can you verify?
Cascardo. ** Also affects: linux (Ubuntu Xenial) Importance: Undecided Status: New ** Changed in: linux (Ubuntu Bionic) Status: Triaged => Fix Released -- 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/1747134 Title: [bug] [BDX]Ubuntu 16.04.3 with kernel "4.10.0-32-generic_4.10.0-32.36~16.04.1_amd64" hang if set "Cores Enabled" to 2 for both CPU Status in intel: New Status in linux package in Ubuntu: Fix Released Status in linux source package in Xenial: New Status in linux source package in Artful: Triaged Status in linux source package in Bionic: Fix Released Bug description: Description: Customer report a Ubuntu kernel issue related to Intel BDX Core numbers setting Ubuntu 16.04.3 with kernel "4.10.0-32-generic_4.10.0-32.36~16.04.1_amd64" hang if set "Cores Enabled" to 2 for both CPU. We have reproduced this issue on 17.10 release. With latest kernel, this issue disappears. now we bisect this issue is fixed by commit 947134d9b00f (“x86/smpboot: Do not use smp_num_siblings in __max_logical_packages calculation”) which was merged in v4.15-rc4. But after applying this commit to Ubuntu 16.04.3 kernel v4.13 code base or Linux upstream mainline kernel v4.13 code base, this issue still exists. Target Release: 16.04 / 17.10 To manage notifications about this bug go to: https://bugs.launchpad.net/intel/+bug/1747134/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : firstname.lastname@example.org Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp