Backport Dirty COW patch to prevent wineserver freeze

[jhansonxi]

A few kernels updates ago (after kernel 3.13.0-98) on 14.04 (Trusty) a backported fix for Dirty COW from kernel 4.8.3 resulted in some Delphi apps freezing wineserver and leaving it unkillable:

https://bugs.winehq.org/show_bug.cgi?id=41637

I haven't tested for the bug on 16.04 Xenial (kernel 4.4.0-59) but it is probably affected. A patch is available:

https://lkml.org/lkml/2017/1/5/13
---
ApportVersion: 2.20.1-0ubuntu2.5
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: jhansonxi 2775 F.... pulseaudio
 /dev/snd/controlC2: jhansonxi 2775 F.... pulseaudio
 /dev/snd/controlC0: jhansonxi 2775 F.... pulseaudio
CurrentDesktop: XFCE
DistroRelease: Ubuntu 16.04
HibernationDevice: RESUME=UUID=6c1d3a04-0529-476c-b193-3e584c0333ca
JournalErrors:
 Error: command ['journalctl', '-b', '--priority=warning', '--lines=1000'] failed with exit code 1: Hint: You are currently not seeing messages from other users and the system.
       Users in the 'systemd-journal' group can see all messages. Pass -q to
       turn off this notice.
 No journal files were opened due to insufficient permissions.
MachineType: System manufacturer System Product Name
NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia
Package: linux (not installed)
ProcFB: 0 VESA VGA
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-59-generic root=/dev/mapper/vg0-lv1 ro quiet nosplash
ProcVersionSignature: Ubuntu 4.4.0-59.80-generic 4.4.35
RelatedPackageVersions:
 linux-restricted-modules-4.4.0-59-generic N/A
 linux-backports-modules-4.4.0-59-generic N/A
 linux-firmware 1.157.6
RfKill:

Tags: xenial
Uname: Linux 4.4.0-59-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: dialout
WifiSyslog:

_MarkForUpload: True
dmi.bios.date: 11/26/2008
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 1206
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: M3A78-EM
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: Rev X.0x
dmi.chassis.asset.tag: Asset-1234567890
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1206:bd11/26/2008:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnM3A78-EM:rvrRevX.0x:cvnChassisManufacture:ct3:cvrChassisVersion:
dmi.product.name: System Product Name
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer

[Brad Figg (brad-figg)]

This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:

apport-collect 1658270

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

[jhansonxi (jhansonxi)]

Confirmed in 16.04.1 (Xenial) with 4.4.0-59-generic.

[jhansonxi (jhansonxi)]

apport information

[jhansonxi (jhansonxi)]

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[jhansonxi (jhansonxi)]

apport information

[jhansonxi (jhansonxi)]

apport information

[jhansonxi (jhansonxi)]

apport information

[jhansonxi (jhansonxi)]

apport information

[jhansonxi (jhansonxi)]

apport information

[jhansonxi (jhansonxi)]

apport information

[jhansonxi (jhansonxi)]

apport information

[jhansonxi (jhansonxi)]

apport information

[jhansonxi (jhansonxi)]

apport information

[jhansonxi (jhansonxi)]

apport information

[Joseph Salisbury (jsalisbury)]

I built a Trusty test kernel with the V2 version of the patch:
https://patchwork.kernel.org/patch/9499897/

The test kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1658270/

Can you test this kernel an see if it resolves this bug?

[jhansonxi (jhansonxi)]

3.13.0-107 seems to be working. Was able to get to the login screen of Altium 16 on Trusty using Wine-staging 2.0 RC6. With 3.13.0-101 it freezes.

[Joseph Salisbury (jsalisbury)]

The stock 3.13.0-107 from the repository works find, or my -107 kernel posted in comment #15?

[jhansonxi (jhansonxi)]

Your version. I don't have any other 107 installed.

[Joseph Salisbury (jsalisbury)]

Thanks for the update. I can submit an SRU request for Trusty. Can you see if this bug also affects Xenial:

https://launchpad.net/~canonical-kernel-team/+archive/ubuntu/ppa/+build/11824874

[jhansonxi (jhansonxi)]

Affects Xenial as per comment #2 and also Zesty (17.04 amd64 current liveCD as of 2017-01-28).

[Thadeu Lima de Souza Cascardo (cascardo)]

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-needed-trusty' to 'verification-done-trusty'. If the problem still exists, change the tag 'verification-needed-trusty' to 'verification-failed-trusty'.

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://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you!

[Thadeu Lima de Souza Cascardo (cascardo)]

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-needed-xenial' to 'verification-done-xenial'. If the problem still exists, change the tag 'verification-needed-xenial' to 'verification-failed-xenial'.

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://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you!

[Thadeu Lima de Souza Cascardo (cascardo)]

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-needed-yakkety' to 'verification-done-yakkety'. If the problem still exists, change the tag 'verification-needed-yakkety' to 'verification-failed-yakkety'.

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://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you!

[Eugene Savelov (savelov)]

Tested on yakkety, 16.10, kernel 4.8.0-38, SAMO7 windows application which failed to run on previous kernel versions, now runs successfully using wine 1.8.5

[Elena (spangoat)]

Tested on 16.04, 4.4.0-63 SAMO7 windows application now runs successfully

[jhansonxi (jhansonxi)]

Altium Wine bug resolved with kernel 3.13.0-109 from -proposed on Ubuntu 14.04.5 (Trusty).

[Joseph Salisbury (jsalisbury)]

Can anyone confirm or deny if this bug exists in Precise?

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux - 3.13.0-109.156

---------------
linux (3.13.0-109.156) trusty; urgency=low

  [ Thadeu Lima de Souza Cascardo ]

  * Release Tracking Bug
    - LP: #1662186

  [ Luis Henriques ]
  * Backport Dirty COW patch to prevent wineserver freeze (LP: #1658270)
    - ARM: 7985/1: mm: implement pte_accessible for faulting mappings
    - ARM: 8108/1: mm: Introduce {pte,pmd}_isset and {pte,pmd}_isclear
    - ARM: 8037/1: mm: support big-endian page tables
    - ARM: 8109/1: mm: Modify pte_write and pmd_write logic for LPAE
    - arm64: mm: Route pmd thp functions through pte equivalents
    - mm: fix huge zero page accounting in smaps report
    - SAUCE: mm: Respect FOLL_FORCE/FOLL_COW for thp

  * kernel BUG at skbuff.h:1486 Insufficient linear data in skb
    __skb_pull.part.7+0x4/0x6 [openvswitch] (LP: #1655683)
    - SAUCE: openvswitch: gre: filter gre packets

  * CVE-2016-7911
    - block: fix use-after-free in sys_ioprio_get()

  * CVE-2016-7910
    - block: fix use-after-free in seq file

  * Xen MSI setup code incorrectly re-uses cached pirq (LP: #1656381)
    - SAUCE: xen: do not re-use pirq number cached in pci device msi msg data

 -- Thadeu Lima de Souza Cascardo <email address hidden> Tue, 07 Feb 2017 09:26:42 -0200

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux - 4.4.0-63.84

---------------
linux (4.4.0-63.84) xenial; urgency=low

  [ Thadeu Lima de Souza Cascardo ]

  * Release Tracking Bug
    - LP: #1660704

  * Backport Dirty COW patch to prevent wineserver freeze (LP: #1658270)
    - SAUCE: mm: Respect FOLL_FORCE/FOLL_COW for thp

  * Kdump through NMI SMP and single core not working on Ubuntu16.10
    (LP: #1630924)
    - x86/hyperv: Handle unknown NMIs on one CPU when unknown_nmi_panic
    - SAUCE: hv: don't reset hv_context.tsc_page on crash

  * [regression 4.8.0-14 -> 4.8.0-17] keyboard and touchscreen lost on Acer
    Chromebook R11 (LP: #1630238)
    - [Config] CONFIG_PINCTRL_CHERRYVIEW=y

  * Call trace when testing fstat stressor on ppc64el with virtual keyboard and
    mouse present (LP: #1652132)
    - SAUCE: HID: usbhid: Quirk a AMI virtual mouse and keyboard with ALWAYS_POLL

  * VLAN SR-IOV regression for IXGBE driver (LP: #1658491)
    - ixgbe: Force VLNCTRL.VFE to be set in all VMDq paths

  * "Out of memory" errors after upgrade to 4.4.0-59 (LP: #1655842)
    - mm, page_alloc: convert alloc_flags to unsigned
    - mm, compaction: change COMPACT_ constants into enum
    - mm, compaction: distinguish COMPACT_DEFERRED from COMPACT_SKIPPED
    - mm, compaction: simplify __alloc_pages_direct_compact feedback interface
    - mm, compaction: distinguish between full and partial COMPACT_COMPLETE
    - mm, compaction: abstract compaction feedback to helpers
    - mm, oom: protect !costly allocations some more
    - mm: consider compaction feedback also for costly allocation
    - mm, oom, compaction: prevent from should_compact_retry looping for ever for
      costly orders
    - mm, oom: protect !costly allocations some more for !CONFIG_COMPACTION
    - mm, oom: prevent premature OOM killer invocation for high order request

  * Backport 3 patches to fix bugs with AIX clients using IBMVSCSI Target Driver
    (LP: #1657194)
    - SAUCE: ibmvscsis: Fix max transfer length
    - SAUCE: ibmvscsis: fix sleeping in interrupt context
    - SAUCE: ibmvscsis: Fix srp_transfer_data fail return code

  * NVMe: adapter is missing after abnormal shutdown followed by quick reboot,
    quirk needed (LP: #1656913)
    - nvme: apply DELAY_BEFORE_CHK_RDY quirk at probe time too

  * Ubuntu 16.10 KVM SRIOV: if enable sriov while ping flood is running ping
    will stop working (LP: #1625318)
    - PCI: Do any VF BAR updates before enabling the BARs
    - PCI: Ignore BAR updates on virtual functions
    - PCI: Update BARs using property bits appropriate for type
    - PCI: Separate VF BAR updates from standard BAR updates
    - PCI: Don't update VF BARs while VF memory space is enabled
    - PCI: Remove pci_resource_bar() and pci_iov_resource_bar()
    - PCI: Decouple IORESOURCE_ROM_ENABLE and PCI_ROM_ADDRESS_ENABLE
    - PCI: Add comments about ROM BAR updating

  * Linux rtc self test fails in a VM under xenial (LP: #1649718)
    - kvm: x86: Convert ioapic->rtc_status.dest_map to a struct
    - kvm: x86: Track irq vectors in ioapic->rtc_status.dest_map
    - kvm: x86: Check dest_map->vector to match eoi signals for rtc

  * Xenial update to v4.4.44 stable releas...

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux - 4.8.0-38.41

---------------
linux (4.8.0-38.41) yakkety; urgency=low

  [ Thadeu Lima de Souza Cascardo ]

  * Release Tracking Bug
    - LP: #1661232

  * Backport Dirty COW patch to prevent wineserver freeze (LP: #1658270)
    - SAUCE: mm: Respect FOLL_FORCE/FOLL_COW for thp

  * Kdump through NMI SMP and single core not working on Ubuntu16.10
    (LP: #1630924)
    - x86/hyperv: Handle unknown NMIs on one CPU when unknown_nmi_panic
    - SAUCE: hv: don't reset hv_context.tsc_page on crash

  * Call trace when testing fstat stressor on ppc64el with virtual keyboard and
    mouse present (LP: #1652132)
    - HID: usbhid: Quirk a AMI virtual mouse and keyboard with ALWAYS_POLL

  * regression in linux-libc-dev in yakkety: C++ style comments are not allowed
    in ISO C90 (LP: #1659654)
    - generic syscalls: kill cruft from removed pkey syscalls

  * [16.04.2] POWER9 patches on top of 4.8 (LP: #1650263)
    - powerpc/book3s: Add a cpu table entry for different POWER9 revs
    - powerpc/mm/radix: Use different RTS encoding for different POWER9 revs
    - powerpc/mm/radix: Use different pte update sequence for different POWER9
      revs
    - powerpc/mm: Update the HID bit when switching from radix to hash
    - powerpc/64/kexec: NULL check "clear_all" in kexec_sequence
    - powerpc/64/kexec: Fix MMU cleanup on radix
    - powerpc/mm: Add radix flush all with IS=3
    - powerpc/64/kexec: Copy image with MMU off when possible
    - powerpc/64: Simplify adaptation to new ISA v3.00 HPTE format
    - powerpc/mm/radix: Invalidate ERAT on tlbiel for POWER9 DD1
    - powerpc/mm: Fix missing update of HID register on secondary CPUs
    - powerpc/64: Add some more SPRs and SPR bits for POWER9
    - powerpc/64: Provide functions for accessing POWER9 partition table
    - powerpc/powernv: Define real-mode versions of OPAL XICS accessors
    - powerpc/64: Define new ISA v3.00 logical PVR value and PCR register value
    - mm: update mmu_gather range correctly
    - mm/hugetlb: add tlb_remove_hugetlb_entry for handling hugetlb pages
    - mm: add tlb_remove_check_page_size_change to track page size change
    - powerpc: Revert Load Monitor Register Support
    - powerpc/mm: Correct process and partition table max size
    - powernv: Clear SPRN_PSSCR when a POWER9 CPU comes online
    - powerpc/mm/radix: Setup AMOR in HV mode to allow key 0
    - powerpc/mm: Detect instruction fetch denied and report
    - powerpc/mm/radix: Prevent kernel execution of user space
    - powerpc/mm: Rename hugetlb-radix.h to hugetlb.h
    - powerpc/mm/hugetlb: Handle hugepage size supported by hash config
    - powerpc/mm: Introduce _PAGE_LARGE software pte bits
    - powerpc/mm: Add radix__tlb_flush_pte_p9_dd1()
    - powerpc/mm: update radix__ptep_set_access_flag to not do full mm tlb flush
    - powerpc/mm: update radix__pte_update to not do full mm tlb flush
    - powerpc/mm: Batch tlb flush when invalidating pte entries
    - powerpc/sparse: Make a bunch of things static
    - powerpc/perf: factor out the event format field
    - powerpc/perf: update attribute_group data structure
    - powerpc/perf: power9 raw event format en...

[Andy Whitcroft (apw)]

This bug was nominated against a series that is no longer supported, ie vivid. The bug task representing the vivid nomination is being closed as Won't Fix.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

[Steve Langasek (vorlon)]

The Precise Pangolin has reached end of life, so this bug will not be fixed for that release