[Hyper-V] fixes for kdump when running on a VM

Bug #1588965 reported by Chris Valean on 2016-06-03
12
This bug affects 1 person
Affects Status Importance Assigned to Milestone
linux (Ubuntu)
Undecided
Unassigned
Xenial
Undecided
Tim Gardner
Yakkety
Undecided
Unassigned

Bug Description

Hello,

Related to ID #1583357 in regards to the LIS improvements rebase to the 4.6 kernel, we would also like to include the below patches.
These are to fix the kdump feature when running on a Hyper-V VM, as the crash scenarios might not always work for 16.04.

415719160de3fae3bb9cbc617664649919cd00d0 Drivers: hv: vmbus: avoid scheduling in interrupt context in vmbus_initiate_unload()

bbf66d897adf2bb0c310db96c97e8db6369f39e1 clocksource: Allow unregistering the watchdog

d452ab7b4c65dfcaee88a0d6866eeeb98a3d1884 Drivers: hv: vmbus: avoid unneeded compiler optimizations in vmbus_wait_for_unload()

7be3e169444d2c625f15a0b6639252b98d1f226a Drivers: hv: vmbus: don't loose HVMSG_TIMER_EXPIRED messages

7268644734f6a300353a4c4ff8bf3e013ba80f89 Drivers: hv: vmbus: Support kexec on ws2012 r2 and above

Thank you!

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

apport-collect 1588965

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.

Changed in linux (Ubuntu):
status: New → Incomplete
Chris Valean (cvalean) on 2016-06-03
Changed in linux (Ubuntu):
status: Incomplete → Confirmed
Tim Gardner (timg-tpi) on 2016-06-04
Changed in linux (Ubuntu Yakkety):
status: Confirmed → Fix Released
Changed in linux (Ubuntu Xenial):
assignee: nobody → Tim Gardner (timg-tpi)
status: New → In Progress
Tim Gardner (timg-tpi) wrote :

Only bbf66d897adf2bb0c310db96c97e8db6369f39e1 ('clocksource: Allow unregistering the watchdog') was required. All other commits are already in Xenial.

https://lists.ubuntu.com/archives/kernel-team/2016-June/077909.html

Changed in linux (Ubuntu Xenial):
status: In Progress → Fix Committed
Kamal Mostafa (kamalmostafa) wrote :

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 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!

tags: added: verification-needed-xenial
Chris Valean (cvalean) wrote :

The missing patch itself doesn't resolve the kdump issues by itself, but nevertheless it should be taken in.

Please merge this one and we'll follow-up in 1400319 with the kdump functionality not working as expected all the time.
Thank you!

tags: added: verification-done-xenial
removed: verification-needed-xenial
Launchpad Janitor (janitor) wrote :
Download full text (26.1 KiB)

This bug was fixed in the package linux - 4.4.0-28.47

---------------
linux (4.4.0-28.47) xenial; urgency=low

  [ Luis Henriques ]

  * Release Tracking Bug
    - LP: #1595874

  * Linux netfilter local privilege escalation issues (LP: #1595350)
    - netfilter: x_tables: don't move to non-existent next rule
    - netfilter: x_tables: validate targets of jumps
    - netfilter: x_tables: add and use xt_check_entry_offsets
    - netfilter: x_tables: kill check_entry helper
    - netfilter: x_tables: assert minimum target size
    - netfilter: x_tables: add compat version of xt_check_entry_offsets
    - netfilter: x_tables: check standard target size too
    - netfilter: x_tables: check for bogus target offset
    - netfilter: x_tables: validate all offsets and sizes in a rule
    - netfilter: x_tables: don't reject valid target size on some architectures
    - netfilter: arp_tables: simplify translate_compat_table args
    - netfilter: ip_tables: simplify translate_compat_table args
    - netfilter: ip6_tables: simplify translate_compat_table args
    - netfilter: x_tables: xt_compat_match_from_user doesn't need a retval
    - netfilter: x_tables: do compat validation via translate_table
    - netfilter: x_tables: introduce and use xt_copy_counters_from_user

  * Linux netfilter IPT_SO_SET_REPLACE memory corruption (LP: #1555338)
    - netfilter: x_tables: validate e->target_offset early
    - netfilter: x_tables: make sure e->next_offset covers remaining blob size
    - netfilter: x_tables: fix unconditional helper

linux (4.4.0-27.46) xenial; urgency=low

  [ Kamal Mostafa ]

  * Release Tracking Bug
    - LP: #1594906

  * Support Edge Gateway's Bluetooth LED (LP: #1512999)
    - Revert "UBUNTU: SAUCE: Bluetooth: Support for LED on Marvell modules"

linux (4.4.0-26.45) xenial; urgency=low

  [ Kamal Mostafa ]

  * Release Tracking Bug
    - LP: #1594442

  * linux: Implement secure boot state variables (LP: #1593075)
    - SAUCE: UEFI: Add secure boot and MOK SB State disabled sysctl

  * failures building userspace packages that include ethtool.h (LP: #1592930)
    - ethtool.h: define INT_MAX for userland

linux (4.4.0-25.44) xenial; urgency=low

  [ Kamal Mostafa ]

  * Release Tracking Bug
    - LP: #1591289

  * Xenial update to v4.4.13 stable release (LP: #1590455)
    - MIPS64: R6: R2 emulation bugfix
    - MIPS: math-emu: Fix jalr emulation when rd == $0
    - MIPS: MSA: Fix a link error on `_init_msa_upper' with older GCC
    - MIPS: Don't unwind to user mode with EVA
    - MIPS: Avoid using unwind_stack() with usermode
    - MIPS: Fix siginfo.h to use strict posix types
    - MIPS: Fix uapi include in exported asm/siginfo.h
    - MIPS: Fix watchpoint restoration
    - MIPS: Flush highmem pages in __flush_dcache_page
    - MIPS: Handle highmem pages in __update_cache
    - MIPS: Sync icache & dcache in set_pte_at
    - MIPS: ath79: make bootconsole wait for both THRE and TEMT
    - MIPS: Reserve nosave data for hibernation
    - MIPS: Loongson-3: Reserve 32MB for RS780E integrated GPU
    - MIPS: Use copy_s.fmt rather than copy_u.fmt
    - MIPS: Fix MSA ld_*/st_* asm macros to use PTR_ADDU
    - MIPS: Prevent "restoration" of MSA c...

Changed in linux (Ubuntu Xenial):
status: Fix Committed → Fix Released
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