3b080b2564287be91605bfd1d5ee985696e61d3c in ubuntu_btrfs_kernel_fixes triggers system hang on i386
| Affects | Status | Importance | Assigned to | Milestone | |
|---|---|---|---|---|---|
| | ubuntu-kernel-tests |
Undecided
|
Andrea Righi | ||
| | linux (Ubuntu) |
Undecided
|
Unassigned | ||
| | Xenial |
Undecided
|
Unassigned | ||
| | Bionic |
Undecided
|
Unassigned | ||
| | Cosmic |
Undecided
|
Unassigned | ||
| | Disco |
Undecided
|
Unassigned | ||
Bug Description
SRU Justification:
[Impact]
* Parity page in btrfs raid56 is incorrectly unmapped, allowing to easily trigger a reference counter bug on i386 causing a kernel panic
* The fix unmaps the right rbio pages and adds the proper kunmap() call for the parity page
[Test Case]
* create a raid5 btrfs filesystem:
# mkfs.btrfs -m raid5 -d raid5 /dev/sdb /dev/sdc /dev/sdd /dev/sde
* mount it:
# mount /dev/sdb /mnt
* run btrfs scrub in a loop:
# while :; do btrfs scrub start -BR /mnt; done
[Fix]
kunmap(p_page) was completely left out, so we never
did an unmap for the p_page and the loop unmapping the rbio page was
iterating over the wrong number of stripes: unmapping should be done
with nr_data instead of rbio->real_stripes.
[Regression Potential]
* This is an upstream fix, tested on the affected platform. The bug is affecting only btrfs raid5/6 users on architectures where kunamp() is not a no-op (like i386). It is also a very small patch, so backport changes are minimal.
[Original bug report]
This issue was not spotted on AMD64
Reproduce rate: 100%
The following command is the key to trigger this:
btrfs scrub start -BR $MNT
Steps:
# (Install necessary packages)
# git clone --depth=1 git://kernel.
# TMP=/tmp/tmp MNT=/tmp/mnt
# mkdir -p $TMP; mkdir -p $MNT
# cd autotest-
# TMP=/tmp/tmp MNT=/tmp/mnt ./3b080b2564287
Trace:
[ 494.357824] ------------[ cut here ]------------
[ 494.357828] kernel BUG at /build/
[ 494.365079] invalid opcode: 0000 [#1] SMP
[ 494.369205] Modules linked in: cfg80211 intel_powerclamp ipmi_ssif gpio_ich coretemp kvm_intel kvm ipmi_si irqbypass input_leds joydev dcdbas intel_cstate ipmi_devintf sch_fq_codel shpchp i7core_edac lpc_ich ipmi_msghandler acpi_power_meter mac_hid ib_iser rdma_cm iw_cm ib_cm ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_
[ 494.430188] CPU: 2 PID: 2093 Comm: kworker/u16:1 Not tainted 4.15.0-43-generic #46-Ubuntu
[ 494.438618] Hardware name: Dell Inc. PowerEdge R310/05XKKK, BIOS 1.11.0 09/18/2012
[ 494.446494] Workqueue: btrfs-endio-raid56 btrfs_endio_
[ 494.453657] EIP: kunmap_
[ 494.457571] EFLAGS: 00010246 CPU: 2
[ 494.461229] EAX: 00000115 EBX: fffff000 ECX: 00000001 EDX: 00000000
[ 494.467840] ESI: 00000004 EDI: 00000004 EBP: f4883e44 ESP: f4883e40
[ 494.474264] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
[ 494.479931] CR0: 80050033 CR2: 005885e0 CR3: 0fe16000 CR4: 000006f0
[ 494.486353] Call Trace:
[ 494.488967] kunmap+0x3e/0x50
[ 494.492140] finish_
[ 494.497226] ? update_
[ 494.501528] validate_
[ 494.507527] raid56_
[ 494.513058] bio_endio+
[ 494.516574] ? end_workqueue_
[ 494.521435] end_workqueue_
[ 494.526139] normal_
[ 494.531087] btrfs_endio_
[ 494.536621] process_
[ 494.540799] worker_
[ 494.544628] kthread+0xf0/0x110
[ 494.547931] ? process_
[ 494.552282] ? kthread_
[ 494.557488] ? kthread_
[ 494.562701] ret_from_
[ 494.566441] Code: 2d ee ff 58 8b 5d fc c9 c3 90 8d b4 26 00 00 00 00 a1 80 d1 c4 cf 31 c9 3d 80 d1 c4 cf 0f 95 c1 eb bc 8d b4 26 00 00 00 00 0f 0b <0f> 0b 8d 74 26 00 66 66 66 66 90 55 89 e5 56 53 31 db e8 1f ef
[ 494.585751] EIP: kunmap_
[ 494.591688] ---[ end trace 5e6d708abb85eeba ]---
Follow up with CPU soft lockup.
Please find the attachment for the complete log.
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: linux-image-
ProcVersionSign
Uname: Linux 4.15.0-43-generic i686
AlsaDevices:
total 0
crw-rw---- 1 root audio 116, 1 Jan 22 11:54 seq
crw-rw---- 1 root audio 116, 33 Jan 22 11:54 timer
AplayDevices: Error: [Errno 2] No such file or directory: 'aplay': 'aplay'
ApportVersion: 2.20.9-0ubuntu7.5
Architecture: i386
ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord': 'arecord'
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
Date: Tue Jan 22 11:54:49 2019
IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig': 'iwconfig'
MachineType: Dell Inc. PowerEdge R310
PciMultimedia:
ProcFB: 0 mgadrmfb
ProcKernelCmdLine: BOOT_IMAGE=
RelatedPackageV
linux-
linux-
linux-firmware 1.173.3
RfKill: Error: [Errno 2] No such file or directory: 'rfkill': 'rfkill'
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 09/18/2012
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.11.0
dmi.board.name: 05XKKK
dmi.board.vendor: Dell Inc.
dmi.board.version: A05
dmi.chassis.type: 23
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.
dmi.product.name: PowerEdge R310
dmi.sys.vendor: Dell Inc.
| Po-Hsu Lin (cypressyew) wrote : | #1 |
| Changed in linux (Ubuntu): | |
| status: | New → Confirmed |
| Po-Hsu Lin (cypressyew) wrote : Re: 3b080b2564287be91605bfd1d5ee985696e61d3c in ubuntu_btrfs_kernel_fixes triggers system hang on Bionic i386 | #3 |
This issue could be found on Cosmic.
| tags: | added: cosmic |
| no longer affects: | ubuntu-kernel-tests |
| Po-Hsu Lin (cypressyew) wrote : | #4 |
Spotted on X / D / mainline 5.0rc2 as well.
syslog for 5.0rc2:
[ 157.662397] ------------[ cut here ]------------
[ 157.662401] kernel BUG at mm/highmem.c:349!
[ 157.666725] invalid opcode: 0000 [#1] SMP PTI
[ 157.671086] CPU: 1 PID: 162 Comm: kworker/u16:4 Not tainted 5.0.0-050000rc2
[ 157.680017] Hardware name: Dell Inc. PowerEdge R310/05XKKK, BIOS 1.11.0 09/18/2012
[ 157.687684] Workqueue: btrfs-endio-raid56 btrfs_endio_
[ 157.694774] EIP: kunmap_
[ 157.698661] Code: d4 8d b4 26 00 00 00 00 6a 00 b8 a0 d7 cf d9 b9 01 00 00 00 ba 03 00 00 00 e8 4a 79 ec ff 8b 5d fc 58 c9 c3 8d 74 26 00 0f 0b <0f> 0b 8d b4 26 00 00 00 00 8d 74 26 00 90 66 66 66 66 90 55 89 e5
[ 157.717962] EAX: 000001d5 EBX: fffff000 ECX: 00000001 EDX: 00000000
[ 157.724560] ESI: 00000004 EDI: 00000004 EBP: f45dfe5c ESP: f45dfe58
[ 157.730918] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 EFLAGS: 00010246
[ 157.737962] CR0: 80050033 CR2: 0225610c CR3: 19eca000 CR4: 000006f0
[ 157.744384] Call Trace:
[ 157.747009] kunmap+0x3e/0x50
[ 157.750192] finish_
[ 157.755316] validate_
[ 157.761318] raid56_
[ 157.766833] bio_endio+
[ 157.770333] ? end_workqueue_
[ 157.775211] end_workqueue_
[ 157.779799] normal_
[ 157.784868] btrfs_endio_
[ 157.790313] process_
[ 157.794479] worker_
[ 157.798310] kthread+0xf0/0x110
[ 157.801620] ? pwq_unbound_
[ 157.806656] ? kthread_
[ 157.810478] ret_from_
[ 157.814220] Modules linked in: intel_powerclamp coretemp kvm_intel dcdbas kvm ipmi_ssif irqbypass joydev input_leds ipmi_si intel_cstate acpi_power_meter mac_hid ipmi_devintf i7core_edac ipmi_msghandler sch_fq_codel ib_iser rdma_cm iw_cm ib_cm ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_
[ 157.873824] ---[ end trace f9b1fc7e1f35ab27 ]---
[ 157.887583] EIP: kunmap_
[ 157.891437] Code: d4 8d b4 26 00 00 00 00 6a 00 b8 a0 d7 cf d9 b9 01 00 00 00 ba 03 00 00 00 e8 4a 79 ec ff 8b 5d fc 58 c9 c3 8d 74 26 00 0f 0b <0f> 0b 8d b4 26 00 00 00 00 8d 74 26 00 90 66 66 66 66 90 55 89 e5
[ 157.910746] EAX: 000001d5 EBX: fffff000 ECX: 00000001 EDX: 00000000
[ 157.917276] ESI: 00000004 EDI: 00000004 EBP: f45dfe5c ESP: d9ed1e5c
[ 157.923699] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 EFLAGS: 00010246
[ 157.930744] CR0: 80050033 CR2: 0225610c CR3: 19eca000 CR4: 000006f0
| tags: | added: disco kernel-bug-exists-upstream xenial |
| summary: |
3b080b2564287be91605bfd1d5ee985696e61d3c in ubuntu_btrfs_kernel_fixes - triggers system hang on Bionic i386 + triggers system hang on i386 |
| Changed in ubuntu-kernel-tests: | |
| assignee: | nobody → Andrea Righi (arighi) |
| Andrea Righi (arighi) wrote : | #5 |
This patch seems to fix the problem for me.
See also:
https:/
| tags: | added: patch |
| Launchpad Janitor (janitor) wrote : | #6 |
Status changed to 'Confirmed' because the bug affects multiple users.
| Changed in linux (Ubuntu Bionic): | |
| status: | New → Confirmed |
| Changed in linux (Ubuntu Cosmic): | |
| status: | New → Confirmed |
| Changed in linux (Ubuntu Xenial): | |
| status: | New → Confirmed |
| Changed in ubuntu-kernel-tests: | |
| status: | New → In Progress |
| Changed in linux (Ubuntu Disco): | |
| status: | Confirmed → In Progress |
| status: | In Progress → Confirmed |
| Po-Hsu Lin (cypressyew) wrote : | #9 |
I have the test disabled on i386, so we can still run other tests without being interrupted.
https:/
Will need to add this back after we got the fix applied.
| Po-Hsu Lin (cypressyew) wrote : | #11 |
Just found that this issue for autotest-
| description: | updated |
| description: | updated |
| Changed in linux (Ubuntu Cosmic): | |
| status: | Confirmed → Fix Committed |
| Changed in linux (Ubuntu Bionic): | |
| status: | Confirmed → Fix Committed |
| Changed in linux (Ubuntu Disco): | |
| status: | Confirmed → Fix Committed |
| Changed in linux (Ubuntu Xenial): | |
| status: | Confirmed → Fix Committed |
This bug is awaiting verification that the kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-
If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.
See https:/
| tags: | added: verification-needed-cosmic |
| tags: | added: verification-needed-bionic |
This bug is awaiting verification that the kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-
If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.
See https:/
| tags: | added: verification-needed-xenial |
This bug is awaiting verification that the kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-
If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.
See https:/
| Po-Hsu Lin (cypressyew) wrote : | #15 |
Test 3b080b2564287be
| tags: |
added: verification-done-xenial removed: verification-needed-xenial |
| Launchpad Janitor (janitor) wrote : | #16 |
This bug was fixed in the package linux - 5.0.0-11.12
---------------
linux (5.0.0-11.12) disco; urgency=medium
* linux: 5.0.0-11.12 -proposed tracker (LP: #1824383)
* hns3: PPU_PF_
(LP: #1824194)
- net: hns3: fix for not calculating tx bd num correctly
* disco: unable to use iptables/enable ufw under -virtual kernel
(LP: #1823862)
- [Packaging] add bpfilter to linux-modules
* Make shiftfs a module rather than built-in (LP: #1824354)
- [Config] CONFIG_SHIFT_FS=m
* shiftfs: chown sets untranslated ids in lower fs (LP: #1824350)
- SAUCE: shiftfs: use translated ids when chaning lower fs attrs
* [Hyper-V] KVP daemon fails to start on first boot of disco VM (LP: #1820063)
- [Packaging] bind hv_kvp_daemon startup to hv_kvp device
linux (5.0.0-10.11) disco; urgency=medium
* linux: 5.0.0-10.11 -proposed tracker (LP: #1823936)
* Apparmor enforcement failure in lxc selftests (LP: #1823379)
- SAUCE: apparmor: Restore Y/N in /sys for apparmor's "enabled"
* systemd cause kernel trace "BUG: unable to handle kernel paging request at
6db23a14" on Cosmic i386 (LP: #1813244)
- openvswitch: fix flow actions reallocation
linux (5.0.0-9.10) disco; urgency=medium
* linux: 5.0.0-9.10 -proposed tracker (LP: #1823228)
* Packaging resync (LP: #1786013)
- [Packaging] resync git-ubuntu-log
- [Packaging] update helper scripts
- [Packaging] resync retpoline extraction
* Huawei Hi1822 NIC has poor performance (LP: #1820187)
- net-next/hinic: replace disable_
* Add uid shifting overlay filesystem (shiftfs) (LP: #1823186)
- shiftfs: uid/gid shifting bind mount
- shiftfs: rework and extend
- shiftfs: support some btrfs ioctls
- [Config] enable shiftfs
* Cannot boot or install - have to use nomodeset (LP: #1821820)
- Revert "drm/i915/fbdev: Actually configure untiled displays"
* Disco update: v5.0.6 upstream stable release (LP: #1823060)
- netfilter: nf_tables: fix set double-free in abort path
- dccp: do not use ipv6 header for ipv4 flow
- genetlink: Fix a memory leak on error path
- gtp: change NET_UDP_TUNNEL dependency to select
- ipv6: make ip6_create_rt_rcu return ip6_null_entry instead of NULL
- mac8390: Fix mmio access size probe
- mISDN: hfcpci: Test both vendor & device ID for Digium HFC4S
- net: aquantia: fix rx checksum offload for UDP/TCP over IPv6
- net: datagram: fix unbounded loop in __skb_try_
- net/packet: Set __GFP_NOWARN upon allocation in alloc_pg_vec
- net: phy: meson-gxl: fix interrupt support
- net: rose: fix a possible stack overflow
- net: stmmac: fix memory corruption with large MTUs
- net-sysfs: call dev_hold if kobject_
- net: usb: aqc111: Extend HWID table by QNAP device
- packets: Always register packet sk in the same order
- rhashtable: Still do rehash when we get EEXIST
- sctp: get sctphdr by offset in sctp_compute_cksum
- sctp: use memdup_user instead of vmemdup_user
- tcp: do not use ipv6 header for ipv4 flow
- tipc: allow servic...
| Changed in linux (Ubuntu Disco): | |
| status: | Fix Committed → Fix Released |
| Po-Hsu Lin (cypressyew) wrote : | #17 |
Test 3b080b2564287be
| tags: |
added: verification-done-bionic removed: verification-needed-bionic |
| Po-Hsu Lin (cypressyew) wrote : | #18 |
Test 3b080b2564287be
| tags: |
added: verification-done-cosmic removed: verification-needed-cosmic |
| Launchpad Janitor (janitor) wrote : | #19 |
This bug was fixed in the package linux - 4.4.0-146.172
---------------
linux (4.4.0-146.172) xenial; urgency=medium
* linux: 4.4.0-146.172 -proposed tracker (LP: #1822834)
* Packaging resync (LP: #1786013)
- [Packaging] update helper scripts
- [Packaging] resync retpoline extraction
* 3b080b2564287be
triggers system hang on i386 (LP: #1812845)
- btrfs: raid56: properly unmap parity page in finish_
* Xenial update: 4.4.177 upstream stable release (LP: #1822271)
- ceph: avoid repeatedly adding inode to mdsc->snap_
- numa: change get_mempolicy() to use nr_node_ids instead of MAX_NUMNODES
- KEYS: allow reaching the keys quotas exactly
- mfd: ti_am335x_tscadc: Use PLATFORM_DEVID_AUTO while registering mfd cells
- mfd: twl-core: Fix section annotations on {,un}protect_
- mfd: db8500-prcmu: Fix some section annotations
- mfd: ab8500-core: Return zero in get_register_
- mfd: qcom_rpm: write fw_version to CTRL_REG
- mfd: wm5110: Add missing ASRC rate register
- mfd: mc13xxx: Fix a missing check of a register-read failure
- net: hns: Fix use after free identified by SLUB debug
- MIPS: ath79: Enable OF serial ports in the default config
- scsi: qla4xxx: check return code of qla4xxx_
- scsi: isci: initialize shost fully before calling scsi_add_host()
- MIPS: jazz: fix 64bit build
- isdn: i4l: isdn_tty: Fix some concurrency double-free bugs
- atm: he: fix sign-extension overflow on large shift
- leds: lp5523: fix a missing check of return value of lp55xx_read
- isdn: avm: Fix string plus integer warning from Clang
- RDMA/srp: Rework SCSI device reset handling
- KEYS: user: Align the payload buffer
- KEYS: always initialize keyring_
- batman-adv: fix uninit-value in batadv_
- net/packet: fix 4gb buffer limit due to overflow check
- team: avoid complex list operations in team_nl_
- sit: check if IPv6 enabled before calling ip6_err_
- net/mlx4_en: Force CHECKSUM_NONE for short ethernet frames
- ARCv2: Enable unaligned access in early ASM code
- Revert "bridge: do not add port to router list when receives query with
source 0.0.0.0"
- libceph: handle an empty authorize reply
- drm/msm: Unblock writer if reader closes file
- ASoC: Intel: Haswell/Broadwell: fix setting for .dynamic field
- ALSA: compress: prevent potential divide by zero bugs
- thermal: int340x_thermal: Fix a NULL vs IS_ERR() check
- usb: dwc3: gadget: Fix the uninitialized link_state when udc starts
- usb: gadget: Potential NULL dereference on allocation error
- ASoC: dapm: change snprintf to scnprintf for possible overflow
- ASoC: imx-audmux: change snprintf to scnprintf for possible overflow
- ARC: fix __ffs return value to avoid build warnings
- mac80211: fix miscounting of ttl-dropped frames
- serial: fsl_lpuart: fix maximum acceptable baud rate with over-sampling
- scsi: csiostor: fix NULL pointer de...
| Changed in linux (Ubuntu Xenial): | |
| status: | Fix Committed → Fix Released |
| Launchpad Janitor (janitor) wrote : | #20 |
This bug was fixed in the package linux - 4.18.0-18.19
---------------
linux (4.18.0-18.19) cosmic; urgency=medium
* linux: 4.18.0-18.19 -proposed tracker (LP: #1822796)
* Packaging resync (LP: #1786013)
- [Packaging] update helper scripts
- [Packaging] resync retpoline extraction
* 3b080b2564287be
triggers system hang on i386 (LP: #1812845)
- btrfs: raid56: properly unmap parity page in finish_
* [SRU][B/
- ACPI / property: Allow multiple property compatible _DSD entries
- PCI / ACPI: Identify untrusted PCI devices
- iommu/vt-d: Force IOMMU on for platform opt in hint
- iommu/vt-d: Do not enable ATS for untrusted devices
- thunderbolt: Export IOMMU based DMA protection support to userspace
- iommu/vt-d: Disable ATS support on untrusted devices
* Huawei Hi1822 NIC has poor performance (LP: #1820187)
- net-next: hinic: fix a problem in free_tx_poll()
- hinic: remove ndo_poll_controller
- net-next/hinic: add checksum offload and TSO support
- hinic: Fix l4_type parameter in hinic_task_
- net-next/
- net-next/hinic:add rx checksum offload for HiNIC
- net-next/hinic:fix a bug in set mac address
- net-next/hinic: fix a bug in rx data flow
- net: hinic: fix null pointer dereference on pointer hwdev
- hinic: optmize rx refill buffer mechanism
- net-next/hinic:add shutdown callback
- net-next/hinic: replace disable_
* [CONFIG] please enable highdpi font FONT_TER16x32 (LP: #1819881)
- Fonts: New Terminus large console font
- [Config]: enable highdpi Terminus 16x32 font support
* [19.04 FEAT] qeth: Enhanced link speed - kernel part (LP: #1814892)
- s390/qeth: report 25Gbit link speed
* Avoid potential memory corruption on HiSilicon SoCs (LP: #1819546)
- iommu/arm-smmu-v3: Avoid memory corruption from Hisilicon MSI payloads
* CVE-2017-5715
- x86/speculation: Apply IBPB more strictly to avoid cross-process data leak
- x86/speculation: Propagate information about RSB filling mitigation to sysfs
- x86/speculation: Add RETPOLINE_AMD support to the inline asm CALL_NOSPEC
variant
- x86/retpoline: Make CONFIG_RETPOLINE depend on compiler support
- x86/retpoline: Remove minimal retpoline support
- x86/speculation: Update the TIF_SSBD comment
- x86/speculation: Clean up spectre_
- x86/speculation: Remove unnecessary ret variable in cpu_show_common()
- x86/speculation: Move STIPB/IBPB string conditionals out of
cpu_
- x86/speculation: Disable STIBP when enhanced IBRS is in use
- x86/speculation: Rename SSBD update functions
- x86/speculation: Reorganize speculation control MSRs update
- sched/smt: Make sched_smt_present track topology
- x86/Kconfig: Select SCHED_SMT if SMP enabled
- sched/smt: Expose sched_smt_present static key
- x86/speculation: Rework SMT state change
- x86/l1tf: Show actual SMT state
- x86/speculation: R...
| Changed in linux (Ubuntu Cosmic): | |
| status: | Fix Committed → Fix Released |
| Launchpad Janitor (janitor) wrote : | #21 |
This bug was fixed in the package linux - 4.15.0-48.51
---------------
linux (4.15.0-48.51) bionic; urgency=medium
* linux: 4.15.0-48.51 -proposed tracker (LP: #1822820)
* Packaging resync (LP: #1786013)
- [Packaging] update helper scripts
- [Packaging] resync retpoline extraction
* 3b080b2564287be
triggers system hang on i386 (LP: #1812845)
- btrfs: raid56: properly unmap parity page in finish_
* [P9][LTCTest]
(LP: #1719545)
- cpupower : Fix header name to read idle state name
* [amdgpu] screen corruption when using touchpad (LP: #1818617)
- drm/amdgpu/gmc: steal the appropriate amount of vram for fw hand-over (v3)
- drm/amdgpu: Free VGA stolen memory as soon as possible.
* [SRU][B/
- ACPICA: AML parser: attempt to continue loading table after error
- ACPI / property: Allow multiple property compatible _DSD entries
- PCI / ACPI: Identify untrusted PCI devices
- iommu/vt-d: Force IOMMU on for platform opt in hint
- iommu/vt-d: Do not enable ATS for untrusted devices
- thunderbolt: Export IOMMU based DMA protection support to userspace
- iommu/vt-d: Disable ATS support on untrusted devices
* Add basic support to NVLink2 passthrough (LP: #1819989)
- powerpc/
enabled
- powerpc/powernv: call OPAL_QUIESCE before OPAL_SIGNAL_
- powerpc/powernv: Export opal_check_token symbol
- powerpc/powernv: Make possible for user to force a full ipl cec reboot
- powerpc/
- powerpc/powernv: Move npu struct from pnv_phb to pci_controller
- powerpc/
- powerpc/
- powerpc/
- powerpc/pseries: Remove IOMMU API support for non-LPAR systems
- powerpc/
- powerpc/
* Huawei Hi1822 NIC has poor performance (LP: #1820187)
- net-next: hinic: fix a problem in free_tx_poll()
- hinic: remove ndo_poll_controller
- net-next/hinic: add checksum offload and TSO support
- hinic: Fix l4_type parameter in hinic_task_
- net-next/
- net-next/hinic:add rx checksum offload for HiNIC
- net-next/hinic:fix a bug in set mac address
- net-next/hinic: fix a bug in rx data flow
- net: hinic: fix null pointer dereference on pointer hwdev
- hinic: optmize rx refill buffer mechanism
- net-next/hinic:add shutdown callback
- net-next/hinic: replace disable_
* [CONFIG] please enable highdpi font FONT_TER16x32 (LP: #1819881)
- Fonts: New Terminus large console font
- [Config]: enable highdpi Terminus 16x32 font support
* [19.04 FEAT] qeth: Enhanced link...
| Changed in linux (Ubuntu Bionic): | |
| status: | Fix Committed → Fix Released |
The verification of the Stable Release Update for linux-azure has completed successfully and the package has now been released to -updates. Subsequently, the Ubuntu Stable Release Updates Team is being unsubscribed and will not receive messages about this bug report. In the event that you encounter a regression using the package from -updates please report a new bug using ubuntu-bug and tag the bug report regression-update so we can easily find any regressions.
| Changed in ubuntu-kernel-tests: | |
| status: | In Progress → Fix Released |
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