A consideration:
From: Vitaly Kuznetsov
When we crash from NMI context (e.g. after NMI injection from host when
'sysctl -w kernel.unknown_nmi_panic=1' is set) we hit
kernel BUG at mm/vmalloc.c:1530!
as vfree() is denied. While the issue could be solved with in_nmi() check
instead I opted f
A number of kdump patches were included in
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1588965 so this
needs retesting.
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Title:
[Hyper-V
I'm running gwibber 3.4.0 and I experienced the same crash just now.
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Title:
gwibber-accounts crashed with TypeError in function(): Item 0: must b
On precise: No mms.cfg for me, but I did have libvdpau. I created a
mms.cfg and was able to fix the tiny, but it made Flash highly unstable.
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Title:
Looks like there's a fix for vdpau described here:
http://www.nvnews.net/vbulletin/showpost.php?p=2518770&postcount=104
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Title:
Wrong tint with Nv
ubuntu-business-defaults: lp:~knitzsche/+junk/ubuntu-business-defaults
Do I need to open a separate public bug for the seed and meta package?
They are in a private bug #932196.
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Do you need our assistance in setting up tests of this particular
function on Hyper-V?
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Title:
Memory balloning in Hyper-V generation 2 does not
We're happy to help with the setup of a test case, and we can test
things on our systems as well.
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Title:
Memory balloning in Hyper-V generation
Not sure why "no longer effects" has been placed here, we've acked the
latest test kernel and are looking forward to this fix going out.
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@f-bosch We've tested all of the upstream commits as we regularly test
linux-next on Hyper-V (we don't submit patches to Ubuntu until they
accepted upstream except in extreme situations).
We are continuing to investigate reports of problems, but we are having
difficulty reproducing. I think this c
The Utopic kernel does not work for us, it crashes. Continuing with
Vivid testing.
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Title:
[Hyper-V] Kernel patches for storvsc
To manage notifi
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@cvalean Yes, the latest release linux-image-virtual is 3.13.0-53 and
the one in proposed is 3.13.0-54. "-virtual" is a form of transitional
package that pulls in the generic kernel, but there is a difference in
kernel modules loaded. Looks like you had some older kernels (3.13.0-32
and 3.13.0-45)
Tested this on my 14.04.2 image on Azure and I see hyperv_keyboard and
hid_hyperv on 3.13.0-54 as expected. Restart time was improved.
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Title:
ad
This fix is needed for 15.10, 15.04, 14.10, 14.04 and the 14.04 HWE
kernel, primarily for VMs in Azure, which uses these statistics.
** Summary changed:
- Add support for VMBus panic notifier handler
+ [Hyper-V] Add support for VMBus panic notifier handler
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@jsalisbury We encountered unexpected performance regressions which we
were not able to diagnose (a 10% decrease in throughput). Is it possible
to rebase on 3.19.0-20 and release a new test kernel?
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@f-bosch No, we have not seen that in our testing.
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Title:
[Hyper-V] Kernel patches for storvsc
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This kernel looks good.
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Title:
[Hyper-V] hv_netvsc: Eliminate memory allocation in the packet send
path
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** Patch added: "03.patch"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1440103/+attachment/4422111/+files/03.patch
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Title:
[Hyper-V]
I'm attaching thee patches that went upstream as part of a larger bundle
to fix this kexec issue.
>From "K. Y. Srinivasan" <>
Subject [PATCH V2 00/10] Drivers: hv: vmbus: Enable kexec and other misc
cleanup
Date Thu, 4 Jun 2015 16:25:39 -0700
In addition to enabling kexec, this patch-set
FYI, re: upstream status, the series was resubmitted on 6/28 but needs
an ack from the CPU hotplug folks before gregkh will accept it into his
tree. We have tested it internally, as well as testing it with our
partners.
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** Patch added: "05.patch"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1440103/+attachment/4422112/+files/05.patch
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Title:
[Hyper-V]
** Patch added: "02.patch"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1440103/+attachment/4422110/+files/02.patch
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Title:
[Hyper-V]
This patch affects networking and not storage, so it should not have an
effect on storage reliability. It may be more appropriate to open a new
issue to investigate the remaining instability.
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Yes, let's go forward with that plan, although the SRB flag fix should
not cause any instability... there must be another underlying issue.
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Title:
@f-bosch, @brianv please paste the relevant logs into
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1452074 and we will
continue the reliability discussion there. It could be the networking
piece is having a side effect.
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Testing in progress.
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Title:
[Hyper-V] Kernel patches for storvsc
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We did not reproduce this issue with our performance testing, but it is
difficult to reproduce. We have a query into our development team to
analyze f-bosch's reports.
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@jsalisbury: yes, that patch is important, but it is difficult to
exercise.
@f-bosch: the missing patch might, to really depends on whether your I/O
pattern exercises the bug. That warning, however, is benign. We tested
our submission upstream as a set, not individually.
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cloud-tools is tied to the kernel version, you may have ended up with
two instances of it.
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Title:
[Hyper-V] Kernel patches for storvsc
To manag
We do not have a test in the 15.04 timeframe that worked, verifying that
it worked in previous releases.
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Title:
[Hyper-V] Fiber Channel critical
** Summary changed:
- [Hyper-V] Kernel panic not functional on 32bit Ubuntu 14.10
+ [Hyper-V] Kernel panic not functional on 32bit Ubuntu 14.10 and 15.04
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Documented, wontfix.
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Title:
[Hyper-V] Unable to perform a full kernel crash on Ubuntu 14.10
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@brianv I would avoid taking this to production. When these patches go
into -proposed I'll recommend testing again with the rest of proposed
updates to other packages, and other kernel changes that come from other
bugs, and that would be a better time to consider broader tests. I would
recommend av
Are these still in proposed? I thought this would have gone live in the
next SRU in June.
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Title:
[Hyper-V] kvp, vrss, fcopy daemons no longer in
Let's keep the terms clear here:
"hot add" raises the high water mark of available memory and will
increase the total memory seen by the Linux VM. Because there's no "hot
remove" (yet) free -m will increase with "hot add" but never decrease.
"balloon" will take memory and allocate it to buffers c
We would like the ultimate upstream fix to be included, rather than
workaround with a boot parameter.
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Title:
[Hyper-V] Legacy network adapter is
I was able to use this test kernel and run our memory stress test
application on it. I was able to balloon it up from its startup memory
to 3.5GB. Looks like the test kernel works okay. No errors on our stress
tests, no unexpected messages in the syslog.
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Consider adding patch https://github.com/alexngmsft/lis-
next/commit/87e03a0943bb9e0760fcf2fe980908a68422a87c
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Title:
Memory balloning in Hyper-V
Upstream original commit id: 4e4bd36f97b1492f19b3329ac74ed313da13de34
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Title:
Memory balloning in Hyper-V generation 2 does not work
To manage n
This issue is also distinct to the one experience in bug 1440103
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Title:
[Hyper-V] Kernel panic not functional on 32bit Ubuntu 14.10 and 15.04
T
We are still seeing some errors.
Here are the results for 15.04 running the upstream 4.1.0-rc8-next built
2015-06-22.
I’m still seeing some error messages, though multipath is at least able to
recognize the vFC disks.
root@ubuntu1504:~# multipath -ll
360080e500017c5e216bf53d7c0c8 dm-3 IBM,1
This kernel looks good.
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Title:
[Hyper-V] hv_netvsc: Use the xmit_more skb flag to optimize signaling
the host
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I believe he is running 14.04.2, which means at least the HWE kernel.
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Title:
[Hyper-V] Ubuntu 14.04.2 LTS Generation 2 SCSI Errors on VSS Based
Yes, It is okay to mark this as a duplicate since the other request
encapsulates these commits.
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Title:
[Hyper-V] hv_netvsc: Eliminate memory all
We will test this kernel. This needs to go to 15.10, 15.04, 14.10,
14.04, and 14.04 HWE.
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Title:
[Hyper-V] Kernel patches for storvsc
To manage
We're still looking for a fix for 14.10, 14.04, and 14.04 HWE. Do we
open a new bug or reopen this one?
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Title:
add hid drivers to virtual kernel
Hrm, I had thought those other commits had been requested previously,
sorry I missed them in the roundup. We'll look at testing the kernel
right away. There is another skb-related fix that is still in review
upstream and is not yet committed as well.
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No log provided or required, upstream commit.
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Title:
[Hyper-V] storvsc: Set the SRB flags correctly when no data transfer
is needed
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Public bug reported:
The following critical bugfix has been accepted into the upstream
kernel. It is needed for 15.10, 15.02, 14.10, 14.04 and 14.04 HWE (and,
by extension, 12.04 and 12.04 HWE). We have seen IHV drivers in the
field throw errors and time out due to receiving SRB flags set when no
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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Title:
[Hyper-V] storvsc: Set the SRB flags correctly when no data transfer
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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Title:
[Hyper-V] Fiber Channel critical target error
To manage notificatio
Fix released host side last week.
** Changed in: ubuntu
Status: Fix Committed => Fix Released
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Title:
DVD medium locked and not released
This should be verified to work for 14.04.
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Title:
Memory balloning in Hyper-V generation 2 does not work
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Upstream commit request, no logs required.
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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Title:
[Hyper-V] hv_netvsc: Use
Public bug reported:
hv_netvsc: Use the xmit_more skb flag to optimize signaling the host
Based on the information given to this driver (via the xmit_more skb flag),
we can defer signaling the host if more packets are on the way. This will help
make the host more efficient since it can potentially
*** This bug is a duplicate of bug 1445195 ***
https://bugs.launchpad.net/bugs/1445195
To fix this problem, you will also need
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1454758
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Public bug reported:
hv-fcopy-daemon.conf hv-kvp-daemon.conf and hv-vss-daemon.conf are
missing from /etc/init and therefore these critical daemons are no
longer launched on Hyper-V installations that use linux-virtual-lts-
utopic or other instances of the HWE kernel.
Because Azure now uses the H
Confirmed on Azure gallery images and Linux-virtual-lts-utopic under
Hyper-V.
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Title:
[Hyper-V] kvp, vrss, fcopy daemons no longer in init
To ma
Public bug reported:
K. Y. Srinivasan (2):
hyperv: Cleanup the test for freeing skb when we use sendbuf
mechanism
hyperv: Eliminate memory allocation in the packet send path
drivers/net/hyperv/hyperv_net.h | 3 +-
drivers/net/hyperv/netvsc.c | 9 -
drivers/net/hyperv/netvsc_drv.c | 7
This kernel patch applies to 15.10, 15.04, 14.10, 14.04, and 14.04 HWE
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Title:
[Hyper-V] hv_netvsc: Eliminate memory allocation in the packet sen
These are upstream commits, not a apport-based report.
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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Title:
[Hyper-V] hv
The importance for this update, and 1445195, has become critical, due to
customer concerns here
https://social.technet.microsoft.com/Forums/windowsserver/en-US
/8807f61c-565e-45bc-abc4-af09abf59de2/ubuntu-14042-lts-generation-2
-scsi-errors-on-vss-based-backups
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https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git/commit/?id=be0cf6ca301c61458dc4aa1a37acf4f58d2ed3d6
https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git/commit/?id=aaced9934d2231227fec4255f394eb86af818ce2
https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git/
The importance for this update, and 1452074, has become critical, due to
customer concerns here
https://social.technet.microsoft.com/Forums/windowsserver/en-US
/8807f61c-565e-45bc-abc4-af09abf59de2/ubuntu-14042-lts-generation-2
-scsi-errors-on-vss-based-backups
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This needs to go to 15.10, 15.04, 14.10, 14.04, and 14.04 HWE.
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Title:
[Hyper-V] hv_netvsc: Eliminate memory allocation in the packet send
path
Josh to let Mark know when and where this can be tested.
** Changed in: ubuntu
Assignee: (unassigned) => Joshua R. Poulson (jrp)
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Ti
Switching to console mode (Ctrl-Alt-F1) and back also fixes this issue
for me.
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Title:
Resuming from sleep makes black borders around windows to
Thank you apw, we'll take another look at it soon.
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Title:
[Hyper-V][ubuntu 15.04] various upstream patches for hyper-v
To manage notifications
14.04.2: inserted an ISO image with Hyper-V manager, but VM did not see
it.
Mounted it manually:
# mount /dev/cdrom /media
mount: block device /dev/sr0 is write-protected, mounting read-only
# df
...
/dev/sr0 55548 55548 0 100% /media
Looks good. Unmounted via hyper-v manager.
Is the current suggestion that this be documented? Should I add an note
for Ubuntu VMs to https://technet.microsoft.com/en-
us/library/dn531029.aspx in addition to where Canonical will be
documenting this?
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Public bug reported:
Came in with texlive-full
ProblemType: Package
DistroRelease: Ubuntu 13.04
Package: texlive-formats-extra 2012.20120611-2
ProcVersionSignature: Ubuntu 3.8.0-27.40-generic 3.8.13.4
Uname: Linux 3.8.0-27-generic x86_64
ApportVersion: 2.9.2-0ubuntu8.3
Architecture: amd64
Date: W
We're getting ready for a new round of storvsc fixes that correspond to
LIS 4.0.11 we'll have to see if that improves things further.
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Title:
[Hy
Is trusty actually missing some of the patchset from
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1445195 that may
prevent the fix in Comment #10 of this defect from working?
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http
Any news on this item?
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Title:
[Hyper-V] netvsc support to set MTU reservation from guest
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Argh, this should be in linux-kernel, not systemd.
** Also affects: linux-kernel (Ubuntu)
Importance: Undecided
Status: New
** Changed in: systemd (Ubuntu)
Status: New => Invalid
** No longer affects: systemd (Ubuntu)
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Public bug reported:
A sporadic hang with consequent crash is observed when booting Hyper-V
Gen1 guests...
Sauce request for upstream submission:
https://lkml.org/lkml/2015/10/15/673
>From Vitaly Kuznetsov <>
Subject [PATCH] x86/ioapic: Disable interrupts when re-routing legacy IRQs
Date Thu,
Public bug reported:
Please integrate the following upstream commit.
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=dd9d3843755da95f63dd3a376f62b3e45c011210
sched: Fix cpu_active_mask/cpu_online_mask race
There is a race condition in SMP bootup code, which may result
This is a request to pick up an upstream submission, and does not
require log files.
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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Can we get this backported to lts-trusty as well?
Thanks! --jrp
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Title:
[Hyper-V] Race condition in SMP bootup
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Public bug reported:
On some host errors storvsc module tries to remove sdev by scheduling a job
which does the following:
sdev = scsi_device_lookup(wrk->host, 0, 0, wrk->lun);
if (sdev) {
scsi_remove_device(sdev);
scsi_device_put(sdev);
}
While this code seems correct the
** Changed in: linux-kernel (Ubuntu)
Status: New => Confirmed
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Title:
[Hyper-V] x86/ioapic: Disable interrupts when re-routing legacy IRQs
** Changed in: linux (Ubuntu)
Status: New => Confirmed
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Title:
[Hyper-V] Crash in hot-add/remove scsi devices (smp)
To manage notificatio
@jsalisbury Joe, @v-zsduda is on my team. The update looks good.
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Title:
[Hyper-V] storvsc: Set the SRB flags correctly when no data transfer
i
Public bug reported:
Microsoft has investigated networking with NUMA nodes and Hyper-V and
found a number of areas where Linux performance could be corrected to be
in line with other virtual machine types.
Please include the following commits and their necessary prerequisites
(which have been acc
No log files required, not a crash report, but rather a request to pick
up upstream corrections.
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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Public bug reported:
Please incorporate the following upstream commits (and necessary pre-
requisites )to the 4.2 kernel into 15.10, 15.04, 14.04 (including HWE),
and 12.04 (including HWE). Network throughput is improved with proper
setting of MTU in virtualized environments.
hv_netvsc: Add suppo
No logs required, instead this is a requested integration of upstream
commits.
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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We are investigating this report and will update the bug when we know
more.
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https://bugs.launchpad.net/bugs/1508706
Title:
Networking hangs on azure using hv_netvsc; bisected
To manag
Indeed, the intention here was to go to the HWE kernel for Precise,
3.13.
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https://bugs.launchpad.net/bugs/1445195
Title:
[Hyper-V] Kernel patches for storvsc
To manage notifications a
Yes, we need this for Vivid and Trusty. Thanks!
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https://bugs.launchpad.net/bugs/1508593
Title:
[Hyper-V] x86/ioapic: Disable interrupts when re-routing legacy IRQs
To manage notificat
I don't think this is needed for trusty (by inspection).
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https://bugs.launchpad.net/bugs/1508609
Title:
[Hyper-V] Race condition in SMP bootup
To manage notifications about this bug g
Joe, do you think we're going to make it for Wily GA?
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https://bugs.launchpad.net/bugs/1495983
Title:
[Hyper-V] kernel panic occurs when installing Ubuntu Server 15.10 x32
To manage no
This is a sauce request. It has been submitted upstream but not yet
accepted.
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https://bugs.launchpad.net/bugs/1509029
Title:
[Hyper-V] Crash in hot-add/remove scsi devices (smp)
To ma
Looking at a different request, may be missing
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=797f88c987b02a8de8d4fac94ec2877b92ec35a2
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ba0c444153889a9b672974d85a4a57a8eeb49fe3
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Trusty may be missing: http://git.kernel.org/cgit/linux/kernel/git/next
/linux-next.git/commit/?id=d1cd1210834649ce1ca6bafe5ac25d2f40331343
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https://bugs.launchpad.net/bugs/1495983
Title:
In searching for appropriate prerequisites, I have determined the
following are needed:
5/31 "hv_netvsc: Properly size the vrss queues"
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=e01ec2199ef22e2cabd7d6e68a192f3eb728029f
5/13 "hv_netvsc: Use the xmit_more skb flag t
Today I grabbed the 15.04 server daily from 4/16. I installed linux-
virtual, linux-tools-virtual, and linux-cloud-tools-virtual and after
booting verified that hid_hyperv and hyperv_fb were present. I will
update the documentation on TechNet to ensure users know to install
these packages on new VM
This happened for me with Precise beta 2. I had simply left a desktop up
overnight with no screen locking set.
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https://bugs.launchpad.net/bugs/763284
Title:
indicator-weather crashed w
*** This bug is a duplicate of bug 944274 ***
https://bugs.launchpad.net/bugs/944274
Public bug reported:
dist upgrade leads to file conflict...
ProblemType: Package
DistroRelease: Ubuntu 12.04
Package: planner-data (not installed)
ProcVersionSignature: Ubuntu 3.2.0-17.27-generic 3.2.6
Uname
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