This bug was fixed in the package linux - 4.15.0-42.45
---------------
linux (4.15.0-42.45) bionic; urgency=medium
* linux: 4.15.0-42.45 -proposed tracker (LP: #1803592)
* [FEAT] Guest-dedicated Crypto Adapters (LP: #1787405)
- KVM: s390: reset crypto attributes for all vcpus
- KVM: s390: vsie: simulate VCPU SIE entry/exit
- KVM: s390: introduce and use KVM_REQ_VSIE_RESTART
- KVM: s390: refactor crypto initialization
- s390: vfio-ap: base implementation of VFIO AP device driver
- s390: vfio-ap: register matrix device with VFIO mdev framework
- s390: vfio-ap: sysfs interfaces to configure adapters
- s390: vfio-ap: sysfs interfaces to configure domains
- s390: vfio-ap: sysfs interfaces to configure control domains
- s390: vfio-ap: sysfs interface to view matrix mdev matrix
- KVM: s390: interface to clear CRYCB masks
- s390: vfio-ap: implement mediated device open callback
- s390: vfio-ap: implement VFIO_DEVICE_GET_INFO ioctl
- s390: vfio-ap: zeroize the AP queues
- s390: vfio-ap: implement VFIO_DEVICE_RESET ioctl
- KVM: s390: Clear Crypto Control Block when using vSIE
- KVM: s390: vsie: Do the CRYCB validation first
- KVM: s390: vsie: Make use of CRYCB FORMAT2 clear
- KVM: s390: vsie: Allow CRYCB FORMAT-2
- KVM: s390: vsie: allow CRYCB FORMAT-1
- KVM: s390: vsie: allow CRYCB FORMAT-0
- KVM: s390: vsie: allow guest FORMAT-0 CRYCB on host FORMAT-1
- KVM: s390: vsie: allow guest FORMAT-1 CRYCB on host FORMAT-2
- KVM: s390: vsie: allow guest FORMAT-0 CRYCB on host FORMAT-2
- KVM: s390: device attrs to enable/disable AP interpretation
- KVM: s390: CPU model support for AP virtualization
- s390: doc: detailed specifications for AP virtualization
- KVM: s390: fix locking for crypto setting error path
- KVM: s390: Tracing APCB changes
- s390: vfio-ap: setup APCB mask using KVM dedicated function
- s390/zcrypt: Add ZAPQ inline function.
- s390/zcrypt: Review inline assembler constraints.
- s390/zcrypt: Integrate ap_asm.h into include/asm/ap.h.
- s390/zcrypt: fix ap_instructions_available() returncodes
- s390/zcrypt: remove VLA usage from the AP bus
- s390/zcrypt: Remove deprecated ioctls.
- s390/zcrypt: Remove deprecated zcrypt proc interface.
- s390/zcrypt: Support up to 256 crypto adapters.
- [Config:] Enable CONFIG_S390_AP_IOMMU and set CONFIG_VFIO_AP to module.
* Bypass of mount visibility through userns + mount propagation (LP: #1789161)
- mount: Retest MNT_LOCKED in do_umount
- mount: Don't allow copying MNT_UNBINDABLE|MNT_LOCKED mounts
* CVE-2018-18955: nested user namespaces with more than five extents
incorrectly grant privileges over inode (LP: #1801924) // CVE-2018-18955
- userns: also map extents in the reverse map to kernel IDs
* kdump fail due to an IRQ storm (LP: #1797990)
- SAUCE: x86/PCI: Export find_cap() to be used in early PCI code
- SAUCE: x86/quirks: Add parameter to clear MSIs early on boot
- SAUCE: x86/quirks: Scan all busses for early PCI quirks
-- Thadeu Lima de Souza Cascardo <casca...@canonical.com> Thu, 15 Nov
2018 17:01:46 -0200
** Changed in: linux (Ubuntu Bionic)
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/1798165
Title:
Vulkan applications cause permanent memory leak with Intel GPU
Status in Linux:
Fix Released
Status in linux package in Ubuntu:
In Progress
Status in linux source package in Bionic:
Fix Released
Status in linux source package in Cosmic:
Fix Released
Bug description:
== SRU Justification ==
Vulkan applications, as Dota 2 and DXVK games cause a memory leak where
memory is never freed and can cause a system crash if the applications are
used for long enough. Certain applications can make the leak be as high as
10 MB/minute.
This commit has been cc'd to upstream stable, but it has not landed in
Bionic or Cosmic as of yet.
Details about the upstream bug can be seen at:
https://github.com/doitsujin/dxvk/issues/632
https://bugs.freedesktop.org/show_bug.cgi?id=107899
== Fix ==
337fe9f5c1e7 ("drm/syncobj: Don't leak fences when WAIT_FOR_SUBMIT is set")
== Regression Potential ==
Low. This commit has been cc'd to stable, so it has had additional
upstream review.
== Test Case ==
A test kernel was built with this patch and tested by the original bug
reporter.
The bug reporter states the test kernel resolved the bug.
Vulkan applications, as Dota 2 and DXVK games cause a memory leak
where memory is never freed and can cause a system crash if the
applications are used for long enough. Certain applications can make
the leak be as high as 10 MB/minute.
Details about this bug can be seen at
https://github.com/doitsujin/dxvk/issues/632 and
https://bugs.freedesktop.org/show_bug.cgi?id=107899
This bug was fixed in 4.19-rc6 and was backported to 4.14 and 4.18.
The particular commit is:
commit a2cef7d049f07995406b403605119a54881daf15
Author: Jason Ekstrand <ja...@jlekstrand.net>
Date: Wed Sep 26 02:17:03 2018 -0500
drm/syncobj: Don't leak fences when WAIT_FOR_SUBMIT is set
commit 337fe9f5c1e7de1f391c6a692531379d2aa2ee11 upstream.
We attempt to get fences earlier in the hopes that everything will
already have fences and no callbacks will be needed. If we do succeed
in getting a fence, getting one a second time will result in a duplicate
ref with no unref. This is causing memory leaks in Vulkan applications
that create a lot of fences; playing for a few hours can, apparently,
bring down the system.
Cc: sta...@vger.kernel.org
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=107899
Reviewed-by: Chris Wilson <ch...@chris-wilson.co.uk>
Signed-off-by: Jason Ekstrand <ja...@jlekstrand.net>
Signed-off-by: Sean Paul <seanp...@chromium.org>
Link:
https://patchwork.freedesktop.org/patch/msgid/20180926071703.15257-1-jason.ekstr...@intel.com
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
On Ubuntu 18.04 with 4.15.0-36 it appears in slabtop as:
https://i.imgur.com/qMAvuwl.png
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: linux-image-4.15.0-36-generic 4.15.0-36.39
ProcVersionSignature: Ubuntu 4.15.0-36.39-generic 4.15.18
Uname: Linux 4.15.0-36-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.4
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: usuario 4655 F.... pulseaudio
/dev/snd/seq: usuario 4640 F.... timidity
CurrentDesktop: XFCE
Date: Tue Oct 16 14:16:54 2018
HibernationDevice: RESUME=UUID=0946602f-3ca2-4379-9012-7a5171928de7
InstallationDate: Installed on 2017-06-13 (489 days ago)
InstallationMedia: Xubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412)
MachineType: LENOVO 80UG
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-36-generic
root=UUID=6b4ae5c0-c78c-49a6-a1ba-029192618a7a ro quiet ro kvm.ignore_msrs=1
kvm.halt_poll_ns=0 kvm.halt_poll_ns_grow=0 intel_iommu=on iommu=pt
i915.enable_gvt=1 i915.fastboot=1
resume=UUID=0946602f-3ca2-4379-9012-7a5171928de7 mtrr_gran_size=2M
mtrr_chunk_size=64M cgroup_enable=memory swapaccount=1 zswap.enabled=1
log_buf_len=16M usbhid.quirks=0x0079:0x0006:0x100000
RelatedPackageVersions:
linux-restricted-modules-4.15.0-36-generic N/A
linux-backports-modules-4.15.0-36-generic N/A
linux-firmware 1.173.1
SourcePackage: linux
UpgradeStatus: Upgraded to bionic on 2017-10-20 (361 days ago)
dmi.bios.date: 08/09/2018
dmi.bios.vendor: LENOVO
dmi.bios.version: 0XCN45WW
dmi.board.asset.tag: NO Asset Tag
dmi.board.name: Toronto 4A2
dmi.board.vendor: LENOVO
dmi.board.version: SDK0J40679 WIN
dmi.chassis.asset.tag: NO Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Lenovo ideapad 310-14ISK
dmi.modalias:
dmi:bvnLENOVO:bvr0XCN45WW:bd08/09/2018:svnLENOVO:pn80UG:pvrLenovoideapad310-14ISK:rvnLENOVO:rnToronto4A2:rvrSDK0J40679WIN:cvnLENOVO:ct10:cvrLenovoideapad310-14ISK:
dmi.product.family: IDEAPAD
dmi.product.name: 80UG
dmi.product.version: Lenovo ideapad 310-14ISK
dmi.sys.vendor: LENOVO
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