This bug was fixed in the package linux - 4.8.0-16.17 --------------- linux (4.8.0-16.17) yakkety; urgency=low
[ Tim Gardner ] * Release Tracking Bug - LP: #1626768 * Support ARM GIC ITS in ACPI mode (LP: #1626631) - [Config] CONFIG_ACPI_IORT=y - SAUCE: ACPI: I/O Remapping Table (IORT) initial support - SAUCE: ACPI: Add new IORT functions to support MSI domain handling - SAUCE: irqchip/gicv3-its: Cleanup for ITS domain initialization - SAUCE: irqchip/gicv3-its: Refactor ITS DT init code to prepare for ACPI - SAUCE: irqchip/gicv3-its: Probe ITS in the ACPI way - SAUCE: irqchip/gicv3-its: Factor out PCI-MSI part that might be reused for ACPI - SAUCE: irqchip/gicv3-its: Use MADT ITS subtable to do PCI/MSI domain initialization - SAUCE: PCI/MSI: Setup MSI domain on a per-device basis using IORT ACPI table * 4.8 dropped CONFIG_ATA=y (breaks systemd's TEST-08-ISSUE-2730 upstream test) (LP: #1626394) - [Config] CONFIG_ATA=y * Yakkety: Enable drivers with respect to Xenial (LP: #1626543) - [Config] CONFIG_VMD=m - [Config] CONFIG_MAC80211_RC_MINSTREL_VHT=y for all arches - [Config] CONFIG_OF=y for all arches - [Config] CONFIG_BLK_DEV_NVME_SCSI=y - [Config] Xenial device settings sync with amd64 - [Config] Xenial device settings sync with i386 - [Config] CONFIG_MTD_UBI_GLUEBI=m - [Config] Xenial device settings sync with armhf - [Config] Xenial device settings sync with arm64 * yakkety 4.8, missing config CONFIG_USERFAULTFD=y (LP: #1626149) - [Config] CONFIG_USERFAULTFD=y * 4.8 regression: SLAB is being used instead of SLUB (LP: #1626564) - [Config] CONFIG_SLUB=y * image won't boot after upgrading to yakkety's 4.8 kernel because efi (LP: #1626158) - add nls_cp437 to the generic.inclusion-list -- Tim Gardner <tim.gard...@canonical.com> Thu, 22 Sep 2016 06:51:45 -0600 ** Changed in: linux (Ubuntu Yakkety) Status: Fix Committed => 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/1626564 Title: 4.8 regression: SLAB is being used instead of SLUB Status in linux package in Ubuntu: Fix Released Status in linux source package in Yakkety: Fix Released Bug description: We're seeing hundreds of kernel worker threads being spawned with some actions, for example, after booting the desktop and hutting the brightness keys causes this. On investigation, this occurs when CONFIG_SLAB is being used. 1. Ubuntu traditionally uses CONFIG_SLUB, so we should use that instead of CONFIG_SLAB (why was it changed for Yakkety?) 2. With CONFIG_SLUB I cannot reproduce the issue of the hundreds for worker threads 3 CONFIG_SLUB seems more performant on the boot too over SLAB. Please re-enable the CONFIG_SLUB allocator as per the 4.4. Xenial configs. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1626564/+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