[Bug 1461620] [NEW] NUMA task migration race condition due to stop task not being checked when balancing happens

2015-06-03 Thread Rafael David Tinoco
Public bug reported: It was brought to my attention the follow kernel panic: [3367068.076488] Code: 23 66 2e 0f 1f 84 00 00 00 00 00 83 fb 03 75 05 45 84 ed 75 66 f0 41 ff 4c 24 24 74 26 89 da 83 fa 04 74 3d f3 90 41 8b 5c 24 20 39 d3 74 f0 83 fb 02 75 d7 fa 66 0f 1f 44 00 00 eb d8 66 0f 1f

[Bug 1425445] Re: Regression: 3.16.0-31-generic breaks touchpad on Dell XPS13 (2015)

2015-06-03 Thread Joseph Salisbury
Can folks affected by this bug test the latest Vivid updates and see if the bug still exists? Thanks in advance! ** Changed in: linux (Ubuntu) Status: Confirmed = Fix Committed ** Changed in: linux (Ubuntu Utopic) Status: Confirmed = Fix Committed -- You received this bug

[Bug 1461012] Re: Hugepage and KSM not configured correctly under systemd

2015-06-03 Thread Launchpad Bug Tracker
Status changed to 'Confirmed' because the bug affects multiple users. ** Changed in: qemu (Ubuntu Vivid) Status: New = Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1461012 Title:

[Bug 1425445] Re: Regression: 3.16.0-31-generic breaks touchpad on Dell XPS13 (2015)

2015-06-03 Thread Joseph Salisbury
Should be fixed as of the 3.19.0-8 kernel: commit 9933a927ded632fde949e0ef6f7a201534d2add8 Author: Seth Forshee seth.fors...@canonical.com Date: Fri Feb 20 11:45:11 2015 -0600 HID: i2c-hid: Limit reads to wMaxInputLength bytes for input events git describe --contains 9933a92

[Bug 1461012] Re: Hugepage and KSM not configured correctly under systemd

2015-06-03 Thread Launchpad Bug Tracker
Status changed to 'Confirmed' because the bug affects multiple users. ** Changed in: qemu (Ubuntu Vivid) Status: New = Confirmed -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu in Ubuntu.

[Bug 1390520] Re: virtual machine fails to start with connected audio cd

2015-06-03 Thread Chris J Arges
I can reproduce this issue on Trusty. ** Changed in: libvirt (Ubuntu) Status: Incomplete = Confirmed ** Changed in: libvirt (Ubuntu) Importance: Undecided = Medium ** Also affects: libvirt (Ubuntu Trusty) Importance: Undecided Status: New ** Changed in: libvirt (Ubuntu

[Bug 1436319] Re: Unable to increase nr_requests change I/O scheduler ...

2015-06-03 Thread Kaizoku
admin@test:~$ uname -a Linux test 4.1.0-040100rc6-lowlatency #201506010235 SMP PREEMPT Mon Jun 1 02:39:09 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux root@test:/home/admin# echo 129 /sys/block/vda/queue/nr_requests bash: echo: write error: Invalid argument root@test:/home/admin# cat

[Bug 1456628] Re: DBUS API doesn't prevent confined apps from passing paths to files without access

2015-06-03 Thread Ken VanDine
** Changed in: content-hub (Ubuntu) Status: Fix Released = In Progress ** Changed in: content-hub (Ubuntu) Assignee: (unassigned) = Ken VanDine (ken-vandine) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu.

[Bug 1455482] Re: Multipath: upgrade multipath-tools to upstream

2015-06-03 Thread Mathieu Trudel-Lapierre
No idea. I think can operate with the usual procedures: merge now with 0.5.0, and either merge or do an updated package once a new release is available, provided it happens before Feature Freeze (August 20). I'll include patches for the above bugs as I merge multipath-tools. -- You received

[Bug 1390625] Re: mouse cursor gets corrupted

2015-06-03 Thread Yrjö Selänne
Just to let subscribers know - there's a $60 bounty for this that can be claimed at any time , as the bug is officially closed. This means you'll receive a cheque for 90% of this bounty by cheque, through the post if you so wish to.

[Bug 1461620] Re: NUMA task migration race condition due to stop task not being checked when balancing happens

2015-06-03 Thread Joseph Salisbury
** Changed in: linux (Ubuntu Trusty) Importance: Undecided = Medium -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1461620 Title: NUMA task migration race condition due to stop task not being

[Bug 1455482] Re: Multipath: upgrade multipath-tools to upstream

2015-06-03 Thread Mathieu Trudel-Lapierre
No idea. I think can operate with the usual procedures: merge now with 0.5.0, and either merge or do an updated package once a new release is available, provided it happens before Feature Freeze (August 20). I'll include patches for the above bugs as I merge multipath-tools. -- You received

[Bug 1461620] Re: NUMA task migration race condition due to stop task not being checked when balancing happens

2015-06-03 Thread Rafael David Tinoco
You can follow my comments in LKML: https://lkml.org/lkml/2015/3/6/484 Basically in kernel 3.13 we are getting the follow situation: I have a core dump locked on the same place (state machine for powering cpu down for the task swap) from a 3.13 (+ upstream patches) and this commit wasn't

[Bug 1461620] Re: NUMA task migration race condition due to stop task not being checked when balancing happens

2015-06-03 Thread Rafael David Tinoco
To understand better if this bug was triggered easy I created the following test case: I've been using a KVM guest emulating a NUMA environment with 32 different domains (1 for each vCPU): root@numa:~# numactl -H available: 32 nodes (0-31) node 0 cpus: 0 node 0 size: 237 MB node 0 free: 82

[Bug 1449051]

2015-06-03 Thread Martin Pitt
*** Bug 86510 has been marked as a duplicate of this bug. *** -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1449051 Title: Upower doesn't handle bluetooth mice properly To manage notifications

[Bug 1461620] Re: NUMA task migration race condition due to stop task not being checked when balancing happens

2015-06-03 Thread Rafael David Tinoco
But unfortunately I could not reproduce the issue (although I know it is in there). I'll create a small logic similar to: Commit a1d9a3231eac4117cadaf4b6bba5b2902c15a33e Author: Kirill Tkhai tk...@yandex.ru Date: Thu Apr 10 17:38:36 2014 +0400 sched: Check for stop task appearance when

[Bug 1461620] Re: NUMA task migration race condition due to stop task not being checked when balancing happens

2015-06-03 Thread Brad Figg
** Also affects: linux (Ubuntu Trusty) Importance: Undecided Status: New ** Changed in: linux (Ubuntu) Status: In Progress = Invalid ** Changed in: linux (Ubuntu Trusty) Status: New = In Progress ** Changed in: linux (Ubuntu Trusty) Assignee: (unassigned) = Rafael

[Bug 1461620] Re: NUMA task migration race condition due to stop task not being checked when balancing happens

2015-06-03 Thread Rafael David Tinoco
It happens that the fix relies on checking if the stop worker needs task selection re-start: + if (need_pull_dl_task(rq, prev)) { pull_dl_task(rq); + /* +* pull_rt_task() can drop (and re-acquire) rq-lock; this +* means a stop

[Bug 1461624] [NEW] Battery charge graph glitches

2015-06-03 Thread Sebastien Bacher
Public bug reported: Sometime charge graph have some glitches (see screenshot), that's due to the default method canvas use to join line and the fact that sometime the curbe has several data point on the same x (see https://bugreports.qt.io/browse/QTBUG-34339) ** Affects: ubuntu-system-settings

[Bug 1201528] Re: [INTEL DP55WG, Realtek ALC889] - Audio Playback Unavailable

2015-06-03 Thread Natalia Bidart
Hello Joseph! Thanks a lot for the bisect work. As I mentioned earlier in the backlog, I'm not at home with the troubling computer for 2 months, but I commit to test this kernel as soon as I get back. I'm very interested to have this issue sorted out (or at least debugged) so I will test the new

[Bug 1461645] [NEW] [Ubuntu 15.10 64bit] Nouveau problems with ( google-chrome-unstable )

2015-06-03 Thread Romeo
Public bug reported: When Ubuntu 15.10 64bits ( btrfs ) got installed, i want to use google-chrome-unstable 45.0.2414.0 (64-bit) on it. But i found glitches that affect the whole interface, sometimes the context menus that's what i found in the terminal after using google-chrome-unstable $

[Bug 1390520] Re: virtual machine fails to start with connected audio cd

2015-06-03 Thread Chris J Arges
I can reproduce this issue on Trusty. ** Changed in: libvirt (Ubuntu) Status: Incomplete = Confirmed ** Changed in: libvirt (Ubuntu) Importance: Undecided = Medium ** Also affects: libvirt (Ubuntu Trusty) Importance: Undecided Status: New ** Changed in: libvirt (Ubuntu

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