[Kernel-packages] [Bug 1794230] Re: failed to load kdump kernel

2018-09-25 Thread Doug Smythies
I get the same on my 16.04 test server. However, things seems to work fine, if I allocate enough memory, on my test 18.04 server VM (which runs on the aforementioned 16.04 test server). My real purpose here is to update the Ubuntu serverguide to deal with bug 1769130. -- You received this bug

[Kernel-packages] [Bug 1768121] Re: Mainline Kernel since 4.16.4 has postinstall script error

2018-05-01 Thread Doug Smythies
Part of this bug report is a duplicate with bug 1766728, and I believe that was fixed as of a couple of hours ago. The other part of this bug report, about needing libssl1.1, isn't fixed, as far as I know. -- You received this bug notification because you are a member of Kernel Packages, which

[Kernel-packages] [Bug 1649905] Re: On boot excessive number of kworker threads are running

2017-07-02 Thread Doug Smythies
@Eric (although you do not seem to have subscribed to this bug report). Your issue is different than what this bug report is/was covering. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu.

[Kernel-packages] [Bug 869017] Re: Ubuntu server enables screenblanking, concealing crashdumps (DPMS is not used)

2017-05-17 Thread Doug Smythies
Kernel 4.12-rc1 has this change, so the console now defaults to never going blank. I disagree with this change. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/869017 Title: Ubuntu

[Kernel-packages] [Bug 1677491] Re: System freeze

2017-04-13 Thread Doug Smythies
@Walter: On our forums exchanges, I missed that your "stuck" messages have "[ksmd:64]" at the end. I get that often also, but I also sometimes get "[qemu-system-x86:8549]" and "[qemu-system-x86:8552]". I do not know what commits may or may not have been migrated back to kernel 4.10. At least for

[Kernel-packages] [Bug 1671287] Re: I'm not working with SGI, JFS and QNX4.

2017-04-05 Thread Doug Smythies
For me these messages were a side effect of unattended upgrades, and the os-prober running as some auto-removal thing. All stuff that I do not want, and did not use to be the default. Having either disabled or uninstalled that stuff, I now expect these message to go away. -- You received this

[Kernel-packages] [Bug 1671287] Re: I'm not working with SGI, JFS and QNX4.

2017-04-04 Thread Doug Smythies
The correct upstream link is: https://bugzilla.kernel.org/show_bug.cgi?id=194835 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1671287 Title: I'm not working with SGI, JFS and QNX4.

[Kernel-packages] [Bug 1671287] Re: I'm not working with SGI, JFS and QNX4.

2017-04-04 Thread Doug Smythies
The upstream link is no good, and I haven't been able to find it on bugzilla.kernel.org by searching. It is unclear to me why this bug report was set to incomplete. While I do get the log entries listed herein, I am also using the latest mainline kernel, 4.11-rc5 (but also noticed it for the

[Kernel-packages] [Bug 1579278] Re: Keep powersave CPU frequency scaling governor for CPUs that support intel_pstate

2017-03-20 Thread Doug Smythies
@fish : Yes your issue does not belong here. To figure out where your issue actually belongs, some details are missing: If your stuck at low frequency issue only occurs after a suspend and on battery power, then your issue is covered by: https://bugzilla.kernel.org/show_bug.cgi?id=90041 (and it

[Kernel-packages] [Bug 1188647] Re: Please change intel_pstate default to disable

2017-02-03 Thread Doug Smythies
@mike: > if you don't think this is the right bug I can open another one or something, This is not the right bug report, and we need to get off it before others start to complain. However, it isn't time to open a new one yet, in my opinion, because we don't yet know what to file it against. >

[Kernel-packages] [Bug 1188647] Re: Please change intel_pstate default to disable

2017-02-02 Thread Doug Smythies
@mike : This probably isn't the place to look into your issue. Do you have accounts on askubuntu.com or ubuntuforums.org ? Perhaps the issue could be moved there. There have been issues as the intel_pstate driver has evolved to include control via the methods you are using. What is your processor

[Kernel-packages] [Bug 1649905] Re: On boot excessive number of kworker threads are running

2017-01-19 Thread Doug Smythies
I would not expect to see this issue in 16.04, and don't on my test 16.04 server, with the default, up to date, kernel. (Linux s15 4.4.0-59-generic #80-Ubuntu SMP Fri Jan 6 17:47:47 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux). -- You received this bug notification because you are a member of

[Kernel-packages] [Bug 1649905] Re: On boot excessive number of kworker threads are running

2016-12-27 Thread Doug Smythies
I tested kernel 4.10-rc1, and the issue is solved with it. I'm not sure how to test the yakkety proposed kernel, because the instructions seems to be for a desktop computer, and this issue shows up much much more clearly on my server computers. -- You received this bug notification because you

[Kernel-packages] [Bug 1649905] Re: On boot excessive number of kworker threads are running

2016-12-14 Thread Doug Smythies
I didn't see the third commit mentioned which I thought was also required: mm: memcontrol: use special workqueue for creating per-memcg caches Anyway, I'll test also, once kernel 4.10-rc1 is ready. The upstream bug report is this one: https://bugzilla.kernel.org/show_bug.cgi?id=172991 ** Bug

[Kernel-packages] [Bug 1626564] Re: 4.8 regression: SLAB is being used instead of SLUB

2016-12-14 Thread Doug Smythies
One of the 3 patches was included in the mainline kernel sometime ago. It fixed SLAB, but not SLUB. The other two patches are now in the mainline kernel and will appear in kernel 4.10-RC1. I'll re-test then. -- You received this bug notification because you are a member of Kernel Packages, which

[Kernel-packages] [Bug 1626564] Re: 4.8 regression: SLAB is being used instead of SLUB

2016-10-27 Thread Doug Smythies
> Are you sure SLAB vs. SLUB fixed this? No, it does not fix the issue. However, the issue is more difficult to re-produce. It seems easy enough to reproduce on my test server, but seems to not happen on my test LapTop. There are 3 related upstream commits that fix the issue (at least in my

[Kernel-packages] [Bug 1626564] Re: 4.8 regression: SLAB is being used instead of SLUB

2016-09-28 Thread Doug Smythies
> Doug - you should start a new bug to address your issue as this > one will auto-close as soon as the next kernel is uploaded. I do not understand. This one is not solved, as there two levels of contributing factors. This one should be set back to a status of "In Progress". Once both SLAB and

[Kernel-packages] [Bug 1626564] Re: 4.8 regression: SLAB is being used instead of SLUB

2016-09-27 Thread Doug Smythies
I filed two bug reports upstream: https://bugzilla.kernel.org/show_bug.cgi?id=172991 https://bugzilla.kernel.org/show_bug.cgi?id=172981 I also made a kernel 4.8-rc8 with 81ae6d03 reverted (because it is so trivial to revert) and no matter how hard I beat on it I can not get it to mess up. **

[Kernel-packages] [Bug 1626564] Re: 4.8 regression: SLAB is being used instead of SLUB

2016-09-26 Thread Doug Smythies
I was working on the assumption that the same commit was causing both the SLAB and the remaining SLUB issues, however it turns out that assumption was incorrect. The commit that causes the SLAB issue is: 801faf0db8947e01877920e848a4d338dd7a99e7 "mm/slab: lockless decision to grow cache" The

[Kernel-packages] [Bug 1626564] Re: 4.8 regression: SLAB is being used instead of SLUB

2016-09-24 Thread Doug Smythies
In case anyone is interested: I got this far with the kernel bisection, but can only continue on Tuesday, maybe Monday night. ** Attachment added: "bisection - thus far" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1626564/+attachment/4748136/+files/bla1.txt -- You received this

[Kernel-packages] [Bug 1626564] Re: 4.8 regression: SLAB is being used instead of SLUB

2016-09-24 Thread Doug Smythies
Note: For kernel work, I only use and compile kernels from the main kernel.org git branch. I steal the Ubuntu kernel configuration. The issue of a high number of kworker threads does not exist in kernel 4.6, but does in 4.7-rc1. When using "SLUB" it is a little difficult to detect on my Yakkety

[Kernel-packages] [Bug 1626564] Re: 4.8 regression: SLAB is being used instead of SLUB

2016-09-24 Thread Doug Smythies
>From my experiments, it seems the issue is not 100% solved, but is much much >much less probable. On my Yakkety test Laptop, if I go back to kernel 4.4.0-9136-generic I can not create the high number of kworker threads. If I boot with kernel 4.8.0-16-generic, I can create the high number of

[Kernel-packages] [Bug 1626564] Re: 4.8 regression: SLAB is being used instead of SLUB

2016-09-22 Thread Doug Smythies
I confirm that reverting the SLAB / SLUB changes in the ubuntu kernel configuration file for mainline kernel 4.8-rc7 to the state they were in for mainline kernel 4.7-rc4 fixes the issue (note, I disable debug, because otherwise it takes over twice as long to compile the kernel, and it is

[Kernel-packages] [Bug 1626564] Re: 4.8 regression: SLAB is being used instead of SLUB

2016-09-22 Thread Doug Smythies
This issue was introduced with the massive kernel configurations changes between mainline kernels 4.7-rc4 and 4.7-rc5. While I have been working on it for a couple of weeks, I was never able to isolate the exact kernel configuration change cause. I am compiling a kernel now (4.8-rc7) reverting

[Kernel-packages] [Bug 1579278] Re: Keep powersave CPU frequency scaling governor for CPUs that support intel_pstate

2016-09-19 Thread Doug Smythies
@Haw Loeung: In addition to what I wrote earlier: > With the new Ubuntu archive servers, we saw constantly high load > and after some tinkering, we found that it was mostly CPUs > being woken up to see if they should enter idle states. > Changing the CPU frequency scaling governor to

[Kernel-packages] [Bug 1579278] Re: Keep powersave CPU frequency scaling governor for CPUs that support intel_pstate

2016-09-19 Thread Doug Smythies
@Haw Loeung: It would be good to understand in more detail your findings. As far as I know (and I am not an expert in this area), great care has been taken to avoid things like wakeups just to decide to go idle. I did a test on my computer (Ubuntu 16.04 server, no GUI), but to avoid extra

[Kernel-packages] [Bug 1579278] Re: Keep powersave CPU frequency scaling governor for CPUs that support intel_pstate

2016-09-17 Thread Doug Smythies
The table formatting got messed up, trying again: Load: idle0.5XX 2X 3X 4X 5X 100% powersave 570811037 16075 29147 45913 61165 76650 81695 3.817.3610.72 19.43 30.61 40.78 51.10 54.46 performance

[Kernel-packages] [Bug 1579278] Re: Keep powersave CPU frequency scaling governor for CPUs that support intel_pstate

2016-09-17 Thread Doug Smythies
Using kernel 4.8-rc5 I did some energy tests, using a SpecPower simulator that I made one time. I reused intel_pstate powersave data from a previous test. Reference: http://marc.info/?l=linux-kernel=147326197513427=2 Big numbers are Joules (package Joules from turbostat) Smaller numbers are

[Kernel-packages] [Bug 1579278] Re: Keep powersave CPU frequency scaling governor for CPUs that support intel_pstate

2016-09-16 Thread Doug Smythies
>> The preferred governor with the intel_pstate driver is powersave. > Do you have some references/proof for that? This is contrary to what > kernel developers say, see comment 1. In my opinion, that reference is obsolete. While I don't work for Intel, the intel_pstate CPU frequency driver is

[Kernel-packages] [Bug 1579278] Re: Keep powersave CPU frequency scaling governor for CPUs that support intel_pstate

2016-09-16 Thread Doug Smythies
What has been done here is incorrect. The old "ondemand" script was modified so that if the intel_pstate driver was being used, and therefore "ondemand" did not exist, it would fall through to setting the "powersave" governor (refer to bug #1314643). Note that "powersave" with the intel_pstate

[Kernel-packages] [Bug 1504584]

2016-04-02 Thread Doug Smythies
This issue no longer occurs on my computer. The a fresh install on linux was done, and now the system is using systemd whereas previously it was not. I am not certain systemd is the difference, it is just my best guess. -- You received this bug notification because you are a member of Kernel

[Kernel-packages] [Bug 1504584]

2016-02-27 Thread Doug Smythies
Yes, the bug persists through kernel 4.4. Having isolated the issue down to the exact causal commit, I do not know what else I can do to move this one along. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu.

[Kernel-packages] [Bug 1534647] Re: Collateral damage due to kernel configuration change enabling CONFIG_ZONE_DEVICE (Kernel 4.4 amd64)

2016-02-02 Thread Doug Smythies
> Upstream is discussing a fix that might allow both configurations @Tim, could you point us to the upstream discussion? -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1534647 Title:

[Kernel-packages] [Bug 1534647] Re: Collateral damage due to kernel configuration change enabling CONFIG_ZONE_DEVICE (Kernel 4.4 amd64)

2016-02-02 Thread Doug Smythies
I found this: https://lkml.org/lkml/2016/1/25/1233 and this: https://bugzilla.kernel.org/show_bug.cgi?id=110931 ** Bug watch added: Linux Kernel Bug Tracker #110931 http://bugzilla.kernel.org/show_bug.cgi?id=110931 -- You received this bug notification because you are a member of Kernel

[Kernel-packages] [Bug 1534647] Re: Collateral damage due to kernel configuration change enabling CONFIG_ZONE_DEVICE (Kernel 4.4 amd64)

2016-01-15 Thread Doug Smythies
No, apport-collect 1534647 is not needed for this bug report. ** Changed in: linux (Ubuntu) Status: Incomplete => Confirmed -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1534647

[Kernel-packages] [Bug 1534647] [NEW] Collateral damage due to kernel configuration change enabling CONFIG_ZONE_DEVICE (Kernel 4.4 amd64)

2016-01-15 Thread Doug Smythies
Public bug reported: Late in the kernel 4.4 RC (Release Candidate) cycle (between rc7 and rc8), Ubuntu implemented an amd64 kernel configuration change enabling CONFIG_ZONE_DEVICE. The related email: https://lists.ubuntu.com/archives/kernel- team/2016-January/067683.html The commit message does

[Kernel-packages] [Bug 1534647] Re: Collateral damage due to kernel configuration change enabling CONFIG_ZONE_DEVICE (Kernel 4.4 amd64)

2016-01-15 Thread Doug Smythies
** Description changed: Late in the kernel 4.4 RC (Release Candidate) cycle (between rc7 and rc8), Ubuntu implemented an amd64 kernel configuration change enabling CONFIG_ZONE_DEVICE. The related email: https://lists.ubuntu.com/archives/kernel- team/2016-January/067683.html - The

[Kernel-packages] [Bug 1504584]

2016-01-09 Thread Doug Smythies
This issue persists though kernel 4.4-rc8. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1504584 Title: As of kernel 4.3-rc1 system will not stay in S3 suspend Status in Linux:

[Kernel-packages] [Bug 1504584]

2015-10-18 Thread Doug Smythies
Additional information: After a fresh boot with the bad kernel, turbostat shows: Pkg%pc6 = 97.84%; PkgWatt 4.01; CorWatt 0.28; GFXWatt 0.23. Then after the first suspend resume, turbostat shows: Pkg%pc6 = 0.00%; PkgWatt 10.08; CorWatt 3.04; GFXWatt 3.51. PkgTmp goes up by more than 10 degrees.

[Kernel-packages] [Bug 1504584]

2015-10-14 Thread Doug Smythies
Created attachment 118873 requested dmesg with drm.debug=14 Possibly relevant excerpt: [ 399.518389] [drm] stuck on render ring [ 399.518686] [drm] GPU HANG: ecode 6:0:0xfeff, reason: Ring hung, action: reset [ 399.518686] [drm] GPU hangs can indicate a bug anywhere in the entire gfx

[Kernel-packages] [Bug 1504584]

2015-10-14 Thread Doug Smythies
(In reply to Jani Nikula from comment #6) > Did you double check the bisect by running both dc4be6071a24 and > dc4be6071a24^ ? Yes, of course, and I said so in my initial e-mail. Truth be known, this was my second bisection, as I must have made a mistake in my first attempt, because the double

[Kernel-packages] [Bug 1504584]

2015-10-14 Thread Doug Smythies
(In reply to Jani Nikula from comment #8) > First, run dc4be6071a24 and try suspend/resume > several times, and see if it's 100% reproducible or not. Yes, it happens every time. To say 100%, I would have to have a sample space of about 1000 attempts. I did not do that many. -- You received this

[Kernel-packages] [Bug 1504584]

2015-10-14 Thread Doug Smythies
Created attachment 118874 an edited version of the file the previous attachment asked for I edited just to remove many lines of 0's. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1504584

[Kernel-packages] [Bug 1497520] Re: Slow performance after resuming from/on battery (CPUs do not scale above 800MHz) with intel_pstate

2015-10-12 Thread Doug Smythies
For your Intel(R) Core(TM) i5-2520M CPU @ 2.50GHz processor, what is the normal minimum pstate? I ask because I have only seen on battery power resume from suspend issues that are related to Clock Modulation becoming enabled. i.e. I am wondering if 800MHz is a normal minimum frequency or below the

[Kernel-packages] [Bug 1504584] Re: As of kernel 4.3-rc1 system will not stay in S3 suspend

2015-10-12 Thread Doug Smythies
** Bug watch added: freedesktop.org Bugzilla #92414 https://bugs.freedesktop.org/show_bug.cgi?id=92414 ** Also affects: linux via https://bugs.freedesktop.org/show_bug.cgi?id=92414 Importance: Unknown Status: Unknown -- You received this bug notification because you are a member

[Kernel-packages] [Bug 1504584] Re: As of kernel 4.3-rc1 system will not stay in S3 suspend

2015-10-09 Thread Doug Smythies
You don't need the logs. I already figured out the root issue, and already submitted it upstream. apport-collect has never worked for me. setting to "Triaged' ** Changed in: linux (Ubuntu) Status: Incomplete => Triaged -- You received this bug notification because you are a member of

[Kernel-packages] [Bug 1504584] [NEW] As of kernel 4.3-rc1 system will not stay in S3 suspend

2015-10-09 Thread Doug Smythies
Public bug reported: Note: this bug report is just for local tracking of an upstream issue: Reference: http://lists.freedesktop.org/archives/intel-gfx/2015-October/077592.html also copied below: This started somewhere between Kernel 4.2 and 4.3-rc1, but I only noticed it a day ago. The first

[Kernel-packages] [Bug 1497520] Re: Slow performance after resuming from/on battery (CPUs do not scale above 800MHz)

2015-09-25 Thread Doug Smythies
To the best of my knowledge, this specific (resume from suspend, intel_pstate, performance mode) issue has been fixed in the upstream kernel. However, I never understood this issue to be specific to battery mode, an interesting twist. Note that there are other issues, and sometimes it is hard to

[Kernel-packages] [Bug 1477171] Re: Enable intel_pstate by default on Trusty EC2 AMIs

2015-09-25 Thread Doug Smythies
Isn't there another issue within this bug report? Why doesn't the acpi- cpufreq frequency scaling driver support the higher available clock frequencies? Actually, maybe it does. Observe processor 3 from the cpuinfo listing: processor : 3 ... cpu MHz : 2901.000 It is in turbo mode.

[Kernel-packages] [Bug 1188647] Re: Please change intel_pstate default to disable

2015-09-17 Thread Doug Smythies
@Phillip: I would like to get to the root of your issue, but I don't know that this is the place to do it. What is your processor? Mine is: Intel(R) Core(TM) i7-2600K CPU @ 3.40GHz What kernel version do you run? I am running 4.3RC1 with a modified intel_pstate driver. If I start a CPU burning

[Kernel-packages] [Bug 1188647] Re: Please change intel_pstate default to disable

2015-09-17 Thread Doug Smythies
@Phillip: By the way, for the previous tests, I didn't go back to a stock kernel because I knew it wouldn't make any difference. However, you would be correct to challenge that assertion, so I re-did everything with my stock kernel: Linux s15 3.16.0-49-generic #65~14.04.1-Ubuntu SMP Wed Sep 9

[Kernel-packages] [Bug 1188647] Re: Please change intel_pstate default to disable

2015-09-11 Thread Doug Smythies
@Phillip: Tell us more about what you trying to do and how you are doing it. I assert that the "control knobs" work fine, however, I only use primitives to control it and never any higher level tool. For example, I would limit the maximum CPU frequency to 0.75 of maximum with: echo "75" | sudo

[Kernel-packages] [Bug 1484587] Re: CPU frequency management fails to re-engage on resume from suspend

2015-09-06 Thread Doug Smythies
, just use primitive commands and not these higher level utilities (that I neither use or know anything about). For example use: grep MHz /proc/cpuinfo to observe CPU frequencies. The commit that, I think, fixes this issue is: commit 6c1e45917dec5e7c99ba8125fd8cc50f6e482a21 Author: Doug Smythies

[Kernel-packages] [Bug 1188647] Re: Please change intel_pstate default to disable

2015-08-27 Thread Doug Smythies
@Colin: I am not sure who you are asking to see if these help. For my part of it, I pretty much only use the most recent RC kernel (well I am still on 4.2RC6), and pretty much only with a version if the intel_pstate driver that includes a proposed patch set that I submitted on 2015.04.11, but

[Kernel-packages] [Bug 1462822] Re: Kernel configuration parameter CONFIG_DEVMEM is not set, it should be

2015-06-24 Thread Doug Smythies
The kernel configuration is O.K. with respect to this issue as of kernel 4.1, and dmidecode works. Thanks. ** Changed in: linux (Ubuntu) Status: Confirmed = Fix Released -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in

[Kernel-packages] [Bug 1462822] Re: Kernel configuration parameter CONFIG_DEVMEM is not set, it should be

2015-06-07 Thread Doug Smythies
** Description changed: There is a relatively new kernel configuration parameter, CONFIG_DEVMEM. - I do not understand why, but for some reason is not set for Ubuntu, and therefore dmidecode does not work. + I do not understand why, but for some reason is not set for Ubuntu, and therefore

[Kernel-packages] [Bug 1462822] [NEW] Kernel configuration parameter CONFIG_DEVMEM is not set, it should be

2015-06-07 Thread Doug Smythies
Public bug reported: There is a relatively new kernel configuration parameter, CONFIG_DEVMEM. I do not understand why, but for some reason is not set for Ubuntu, and therefore dmidecode does not work. I think that, in general, we want dmidecode to work. I found this:

[Kernel-packages] [Bug 1462822] Re: Kernel configuration parameter CONFIG_DEVMEM is not set, it should be

2015-06-07 Thread Doug Smythies
You do not need the apport stuff for this bug report, it is not relevant. ** Changed in: linux (Ubuntu) Status: Incomplete = New -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu.

[Kernel-packages] [Bug 1452460] Re: Turbo mode on i7 is not enabled upon resume

2015-05-13 Thread Doug Smythies
see also: https://bugzilla.kernel.org/show_bug.cgi?id=90421 particularly the entries from Marien. This issue does not manifest the same for all i7 processors. ** Bug watch added: Linux Kernel Bug Tracker #90421 http://bugzilla.kernel.org/show_bug.cgi?id=90421 -- You received this bug

[Kernel-packages] [Bug 1421793] Re: intel_pstate is always reported to be set to 'performance'

2015-02-14 Thread Doug Smythies
*** This bug is a duplicate of bug 1411802 *** https://bugs.launchpad.net/bugs/1411802 ** This bug has been marked a duplicate of bug 1411802 powersave governor should be listed as one possible value for the ondemand init.d script -- You received this bug notification because you are a

[Kernel-packages] [Bug 1421793] Re: intel_pstate is always reported to be set to 'performance'

2015-02-14 Thread Doug Smythies
*** This bug is a duplicate of bug 1314653 *** https://bugs.launchpad.net/bugs/1314653 ** This bug is no longer a duplicate of bug 1411802 powersave governor should be listed as one possible value for the ondemand init.d script ** This bug has been marked a duplicate of bug 1314653

[Kernel-packages] [Bug 1413149] Re: rtsx_usb_ms: system load immediately climbs, and stays above 1.00

2015-01-22 Thread Doug Smythies
I reviewed the Ubuntu kernel team e-mail thread. I do not understand why the bug patch submitted upstream on November 6th seems to have stalled. I did observe that there wasn't an ACK, that I could find. So I wondered of the patch had been modified or another solution was found. Is there any way

[Kernel-packages] [Bug 1397061] Re: CONFIG_SCSI_MQ_DEFAULT default changed preventing use of IO schedulers

2014-11-28 Thread Doug Smythies
Thanks for your rapid attention on this one. Just for completeness, I want to expand on this statement from the description: my system does seem to benefit from blk-mq That is, unless the IO load is high. With very high disk IO load, things fall apart. For example I had a single disk seek time

[Kernel-packages] [Bug 1188647] Re: Please change intel_pstate default to disable

2014-06-08 Thread Doug Smythies
Kernel 3.15 contains some intel_pstate changes that should address the issues I raised in post 16 above. For Ubuntu one concern is: For the 250 Hz kernel the default sample rate will result in an actual different sample rate, and thus the response curve is a little different than for the 1000 Hz

[Kernel-packages] [Bug 1188647] Re: Please change intel_pstate default to disable

2014-04-26 Thread Doug Smythies
For the decision to re-enable the intel pstate driver by default or not, the suggestion is to be cautious. The driver keeps changing in rather fundamental ways, such that one can never be sure how it is going to perform. I will attach two graphs to (hopefully) help make my point. The first graph

[Kernel-packages] [Bug 1188647] Re: Please change intel_pstate default to disable

2014-04-26 Thread Doug Smythies
Graph 2 of 2. see previous comment. ** Attachment added: Sleep / load frequency sweep from 2 to 250 Hertz. Kernel 3.12 and 3.15RC2 https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1188647/+attachment/4097699/+files/k315rc2_k312_freq_sweep.png -- You received this bug notification

[Kernel-packages] [Bug 1254920] Re: CPU utilization / accounting issues

2014-01-08 Thread Doug Smythies
The issue is that all of those kernels work, the issue does not appear until the kernel configuration changes between saucy and trusty, as mentioned in my original posting. Without even knowing a good starting point, I tried a kernel bi-section, but with the new configuration and went back as far

[Kernel-packages] [Bug 1254920] Re: CPU utilization / accounting issues

2014-01-08 Thread Doug Smythies
After a month, and off course, I checked that the issue was still present with an up to date system when I added notes to this bug report a couple of hours ago, right? Well, due to incompetence on my part, I was not running the current 14.04 kernel, when I thought I was. This issue is fixed

[Kernel-packages] [Bug 1254920] Re: CPU utilization / accounting issues

2013-12-05 Thread Doug Smythies
@ Joseph Salisbury: Thank you for the suggestions. I would like to try to bisect the kernel. I am setup with GIT for my kernel.org version of the kernel. I have tried to bisect the kernel 3 times before, and succeeded once. I will have to study GIT again to remember how to do anything beyond git

[Kernel-packages] [Bug 1254920] Re: CPU utilization / accounting issues

2013-12-01 Thread Doug Smythies
I tried the Ubuntu kernel 3.13RC2, and the CPU user, sys, idle, and wait information making no sense at all issue remains. As I see it now, if there is a fb0 device, then the issue will exist: doug@test-smy:~$ ls -l /dev/fb0 crw-rw 1 root video 29, 0 Dec 1 08:25 /dev/fb0 If there is not a

[Kernel-packages] [Bug 1254920] Re: CPU utilization / accounting issues

2013-11-30 Thread Doug Smythies
I have isolated the kernel configuration differences down to: doug@v32-serv03:~/kernel/linux-3.12.0$ diff config_def config_05 781c781 CONFIG_X86_SYSFB=y --- # CONFIG_X86_SYSFB is not set 4869c4869 CONFIG_FB_BOOT_VESA_SUPPORT=y --- # CONFIG_FB_BOOT_VESA_SUPPORT is not set 4900c4900

[Kernel-packages] [Bug 1254920] Re: CPU utilization / accounting issues

2013-11-27 Thread Doug Smythies
I noticed some differences with the output of vmstat depending on the delay parameter. The attachment is a loop of vmstat command for delay = 1 to 50 in steps of 1. In a moment I will add the same thing but with the good kernel configuration. I have been trying to create a 14.04 i386 VM on my

[Kernel-packages] [Bug 1254920] Re: CPU utilization / accounting issues

2013-11-27 Thread Doug Smythies
** Attachment added: various delays on vstat - good config https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1254920/+attachment/3918412/+files/vmstat_loop_good.log -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu.

[Kernel-packages] [Bug 1254920] Re: CPU utilization / accounting issues

2013-11-26 Thread Doug Smythies
Yes, I already tried kernel 3.13RC1 a couple of days ago, and it was the same. I tried the one from the Ubuntu kernel PPA, not the one directly from kernel.org (as I mentioned in an earlier post, I can not compile the kernel on this computer). I tried many many kernels in an attempt to isolate

[Kernel-packages] [Bug 1254920] Re: CPU utilization / accounting issues

2013-11-25 Thread Doug Smythies
** Attachment added: sudo lspci -vnvn lspci-vnvn.log https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1254920/+attachment/3917141/+files/lspci-vnvn.log -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu.

[Kernel-packages] [Bug 1254920] [NEW] CPU utilization / accounting issues

2013-11-25 Thread Doug Smythies
Public bug reported: The issue is on a Trusty 32 bit server edition. It is the very very old computer that I use for minimum requirements testing. The issue is CPU user, sys, idle, and wait information makes absolutely no sense at all. For example with the commands top or vmstat I believe I

[Kernel-packages] [Bug 1254920] Re: CPU utilization / accounting issues

2013-11-25 Thread Doug Smythies
** Attachment added: kernel config differences between saucy and trusty https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1254920/+attachment/3917140/+files/diff_config_saucy_trusty -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to

[Kernel-packages] [Bug 1254920] Re: CPU utilization / accounting issues

2013-11-25 Thread Doug Smythies
To clarify, I am suggesting that the reported numbers are incorrect, not that there is some strange new loads going on. I did many tests with disk I/O and CPU loading and such to determine if there were any real increased overheads. Maybe a couple of percent of CPU OS increased overhead and a

[Kernel-packages] [Bug 1254920] Re: CPU utilization / accounting issues

2013-11-25 Thread Doug Smythies
apport-collect has never worked for me on server computers. I end up in some mess with my putty SSH connection and have never been able to figure it out. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu.

[Kernel-packages] [Bug 1215665] Re: With Kernel 3.11RC6 Ubuntu servguide PDF compile crashes

2013-11-08 Thread Doug Smythies
This one can be set to Fix released. Does anyone disagree? -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1215665 Title: With Kernel 3.11RC6 Ubuntu servguide PDF compile crashes Status

[Kernel-packages] [Bug 1233479] Re: ondemand cpufreq governor does not scale CPU freq on Sandybridge

2013-10-01 Thread Doug Smythies
Please know when using the acpi-cpufreq driver what is shown in various places for CPU frequency can be wrong. The only way to know the actual CPU frequencies is via turbostat, as you are doing. -- You received this bug notification because you are a member of Kernel Packages, which is

[Kernel-packages] [Bug 1233479] Re: ondemand cpufreq governor does not scale CPU freq on Sandybridge

2013-10-01 Thread Doug Smythies
By the way, ondemand mode using the acpi-cpufreq driver is working fine on my computer with a 3.11 kernel. doug@s15:~/temp$ uname -a Linux s15 3.11.2-031102-generic #201309262136 SMP Fri Sep 27 01:37:33 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux doug@s15:~/temp$ cat

[Kernel-packages] [Bug 1233479] Re: ondemand cpufreq governor does not scale CPU freq on Sandybridge

2013-10-01 Thread Doug Smythies
All active cores share the same frequency. This is one of the misleading things about the acpi-cpufreq driver, it tends to show target frequencies not actual frequencies. See also the Intel 2nd gen core desktop vol 1 datasheet - Chapter 4 Power Management - Section 4.2 Processor Core Power

[Kernel-packages] [Bug 1215665] [NEW] With Kernel 3.11RC6 Ubuntu servguide PDF compile crashes

2013-08-22 Thread Doug Smythies
Public bug reported: I often run the current release candidate (RC) on a 12.04 server computer. When compiling any non-english PDF version of the Ubuntu server guide, one of the programs crashes (and creates a log, which I will attach shortly, but summary below). While it has been a very long

[Kernel-packages] [Bug 1215665] Re: With Kernel 3.11RC6 Ubuntu servguide PDF compile crashes

2013-08-22 Thread Doug Smythies
One of the crash log files. ** Attachment added: One of the crash log files https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1215665/+attachment/3783402/+files/hs_err_pid3025.log -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to

[Kernel-packages] [Bug 1215665] Re: With Kernel 3.11RC6 Ubuntu servguide PDF compile crashes

2013-08-22 Thread Doug Smythies
** Attachment added: sudo lspci -vnvn lspci.log https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1215665/+attachment/3783403/+files/lspci.log -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu.

[Kernel-packages] [Bug 1215665] Re: With Kernel 3.11RC6 Ubuntu servguide PDF compile crashes

2013-08-22 Thread Doug Smythies
apport-collect has never worked for me. Right now, and after entering apport-collect 1215665 I have some weird stuff on my puTTY session screen and I can not seem to find any way to either log in to launchpad from there or exit. ** Changed in: linux (Ubuntu) Status: Incomplete = Confirmed

[Kernel-packages] [Bug 1215665] Re: With Kernel 3.11RC6 Ubuntu servguide PDF compile crashes

2013-08-22 Thread Doug Smythies
I am well aware of what you wrote. I was simply trying to help. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1215665 Title: With Kernel 3.11RC6 Ubuntu servguide PDF compile crashes

[Kernel-packages] [Bug 1215665] Re: With Kernel 3.11RC6 Ubuntu servguide PDF compile crashes

2013-08-22 Thread Doug Smythies
This issue occurs also with Kernels 3.10.8 and 3.10.9, but not 3.10.7. I was not looking for support with this bug report, I was wanting to make developers aware that something has gone wrong in just the last few days. In my opinion, I can not file a bug at bugzilla because: I do not know the