This bug was fixed in the package linux-azure - 4.18.0-1023.24~18.04.1
---------------
linux-azure (4.18.0-1023.24~18.04.1) bionic; urgency=medium
* linux-azure: 4.18.0-1023.24~18.04.1 -proposed tracker (LP: #1833945)
[ Ubuntu: 4.18.0-1023.24 ]
* linux-azure: 4.18.0-1023.24 -proposed tracker (LP: #1833946)
* [linux-azure] XDP generic fixes (LP: #1831254)
- netvsc: unshare skb in VF rx handler
- net: convert rps_needed and rfs_needed to new static
- net: core: support XDP generic on stacked devices.
* Enable eBPF JIT in the linux-azure kernels (LP: #1827916)
- [Config] linux-azure: CONFIG_MLX{4,5}_INFINIBAND=m
* Azure: Backport vIOMMU driver (increase vCPU limits) (LP: #1826447)
- PCI: hv: Replace hv_vp_set with hv_vpset
- PCI: hv: Refactor hv_irq_unmask() to use cpumask_to_vpset()
- x86/Hyper-V: Set x2apic destination mode to physical when x2apic is
available
- iommu/hyper-v: Add Hyper-V stub IOMMU driver
- [Config] linux-azure: CONFIG_HYPERV_IOMMU=y
* [linux-azure] Please Include Mainline Commit ebaf39e6032f in the 16.04 and
18.04 linux-azure kernels (LP: #1830266)
- ipv4: ipv6: netfilter: Adjust the frag mem limit when truesize changes
* [Packaging] Improve config annotations check on custom kernels
(LP: #1820075)
- [Config] linux-azure: Include custom annotations files
* linux: 4.18.0-25.26 -proposed tracker (LP: #1833952)
* CVE-2019-11479
- SAUCE: tcp: add tcp_min_snd_mss sysctl
- SAUCE: tcp: enforce tcp_min_snd_mss in tcp_mtu_probing()
* Remote denial of service (resource exhaustion) caused by TCP SACK scoreboard
manipulation (LP: #1831638) // CVE-2019-11478
- tcp: refine memory limit test in tcp_fragment()
* CVE-2019-12817
- SAUCE: powerpc/mm/64s/hash: Reallocate context ids on fork
-- Marcelo Henrique Cerri <marcelo.ce...@canonical.com> Tue, 25 Jun
2019 11:42:46 -0300
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux-azure in Ubuntu.
https://bugs.launchpad.net/bugs/1830266
Title:
[linux-azure] Please Include Mainline Commit ebaf39e6032f in the
16.04 and 18.04 linux-azure kernels
Status in linux-azure package in Ubuntu:
Fix Released
Status in linux-azure source package in Xenial:
Fix Released
Status in linux-azure source package in Cosmic:
Fix Released
Bug description:
A team within Microsoft is running the linux-azure Ubuntu kernel on a
large AI cluster. They are hitting an issue which is resolved by the
following commit:
https://github.com/torvalds/linux/commit/ebaf39e6032faf77218220707fc3fa22487784e0
The bug is that threads can get stuck in the kernel. This bug can happen when
removing network namespaces. This is something docker swarm does anytime it
removes a container.
Commit ebaf39e6032f was added to the mainline kernel tree in
v4.20-rc6. It was not cc’d to upstream stable, so only v4.20-rc6 and
newer kernels will have it.
A test kernel was built with this commit, which resolves the issue.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux-azure/+bug/1830266/+subscriptions
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