[Kernel-packages] [Bug 1332063] Re: Support memoryless nodes in Ubuntu kernel

2014-07-10 Thread Nish Aravamudan
I verified that the performance is the equivalent of upstream with 3.13.0-32-generic. There is still work to be done upstream but this gets us quite a bit further. ** Tags removed: verification-needed-trusty ** Tags added: verification-done-trusty -- You received this bug notification because

[Kernel-packages] [Bug 1332063] Re: Support memoryless nodes in Ubuntu kernel

2014-07-10 Thread Nish Aravamudan
I verified that the performance is the equivalent of upstream with 3.13.0-32-generic. There is still work to be done upstream but this gets us quite a bit further. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu.

[Kernel-packages] [Bug 1328251] Re: libhugetlbfs tests fail on powerpc/ppc64el

2014-06-09 Thread Nish Aravamudan
Hi Tim, Note that the referenced commit only makes it so that if you don't back a PowerKVM guest with hugepages, hugepages do not (falsely) appear to be supported. In such an environment the message referenced in this bug report will still be displayed as it should -- hugepages aren't supported

[Kernel-packages] [Bug 1392176] Re: mounts cgroups unconditionally which causes undesired effects with cpu hotplug

2015-04-06 Thread Nish Aravamudan
Breno, Was your test done with a cgmanager with the -M flag passed? -- 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/1392176 Title: mounts cgroups unconditionally which causes undesired

[Kernel-packages] [Bug 1392176] Re: mounts cgroups unconditionally which causes undesired effects with cpu hotplug

2015-04-06 Thread Nish Aravamudan
Serge, That should only be true for unified hierarchy. In legacy hierarchy, effective_cpus follows cpus, I think? -- 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/1392176 Title: mounts

[Kernel-packages] [Bug 1433906] Re: Acer, Inc ID 5986:055a is useless after 14.04.2 installed.

2016-05-25 Thread Nish Aravamudan
To clarify to everyone possibly affected by this bug, and in reviewing the thread @Henrik provided, it seems like the upstream community (linux-uvc) has reviewed the patch and asked for some modifications (April 27, 2016). So that is why the patch has not made its way into Ubuntu kernels yet, as

Re: [Kernel-packages] [Bug 1567539] Re: Failure to dump with trusty+3.16 on ppc64el

2016-04-07 Thread Nish Aravamudan
On 07.04.2016 [17:18:58 -], Dave Chiluk wrote: > According to > https://wiki.ubuntu.com/ppc64el/Recommendations#Crash_Kernel_recommendations > > it looks like the following should be used. > crashkernel=2G-4G:320M,4G-32G:512M,32G-64G:1024M,64G-128G:2048M,128G-:4096M > > These should be made

[Kernel-packages] [Bug 1567539] Re: Failure to dump with trusty+3.16 on ppc64el

2016-04-07 Thread Nish Aravamudan
Couple of thoughts, which we probably should get IBM's advice on: I believe this is using: crashkernel=384M-:128M 128M reserved seems too small for so much memory, tbh. Also, I see that all the CPUs are on in the crashkernel, when realistically only 1 CPU is needed (and there have been issues

Re: [Kernel-packages] [Bug 1567539] Re: Failure to dump with trusty+3.16 on ppc64el

2016-04-12 Thread Nish Aravamudan
On 12.04.2016 [19:53:57 -], Dave Chiluk wrote: > I can confirm that the following settings for crashkernel on powernv result > in the following console log. > crashkernel=2G-4G:320M,4G-32G:512M,32G-64G:1024M,64G-128G:2048M,128G-:4096M If I read that correctly, it failed to kdump at all? Can

Re: [Kernel-packages] [Bug 1567539] Re: Failure to dump with trusty+3.16 on ppc64el

2016-04-12 Thread Nish Aravamudan
On 12.04.2016 [18:51:36 -], Dave Chiluk wrote: > I received another update from the end user. > "A fresh 14.04.4 DVD Ubuntu install with updates (3.16.0-69 kernel) in a > diskful setup (no NFS, no aufs, 1T swap disk) also fails to kdump, either > hangs or OOMS." > > My understanding is

Re: [Kernel-packages] [Bug 1567539] Re: Failure to dump with trusty+3.16 on ppc64el

2016-04-12 Thread Nish Aravamudan
On 12.04.2016 [21:13:40 -], Dave Chiluk wrote: > With > ubuntu@modoc:~$ cat /proc/cmdline > root=/dev/mapper/mpath0-part2 ro console=hvc0 > crashkernel=2G-4G:320M@32M,4G-32G:512M@32M,32G-64G:1024M@32M,64G-128G:2048M@32M,128G-:4096M@32M > > I get the following console log > [ 191.833046]

Re: [Kernel-packages] [Bug 1567539] Re: Failure to dump with trusty+3.16 on ppc64el

2016-04-08 Thread Nish Aravamudan
On 08.04.2016 [11:04:47 -], Louis Bouchard wrote: > Hello, > > Regarding nr_cpus=1, the equivalent maxcpus=1 is set in the kexec > command (at least on default installs) : Yep, you're right, sorry! > Maybe disabling SMP alltogether by setting maxcpus=0 could be considered > but that

[Kernel-packages] [Bug 1573231] Re: Kernel Panic on EC2 After Upgrading from 14.04 to 16.04 via do-release-upgrade -d

2016-05-06 Thread Nish Aravamudan
@Joe, based upon the identified commit, I wonder if it would be worth testing backports of follow-on fixes specifically for that commit? http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b5d5f27d938fb6fc8d3202704e699d2694a02da6

[Kernel-packages] [Bug 1573231] Re: Kernel Panic on EC2 After Upgrading from 14.04 to 16.04 via do-release-upgrade -d

2016-05-06 Thread Nish Aravamudan
Err, apologies Joe, it does seem like upon more careful reading of the bug report, the second mentioned commit (comment #18) specifically introduced the regression? That seems unlikely at best given it's contents, rights? That is, if the divisor was zero after that commit, it was zero before it,

Re: [Kernel-packages] [Bug 1567539] Re: Failure to dump with trusty+3.16 on ppc64el

2016-04-13 Thread Nish Aravamudan
On 13.04.2016 [23:44:39 -], Dave Chiluk wrote: > So it looks like this crashkernel argument is not resulting in any reserved > memory. > The correct crashkernel argument should look like this. > crashkernel=2G-4G:320M,4G-32G:512M,32G-64G:1024M,64G-128G:2048M,128G-:4096M@32M > > Additionally

[Kernel-packages] [Bug 1628284] Re: yakkety: daily powerpc server ISO fails to find cdrom during install in a VM

2016-09-28 Thread Nish Aravamudan
uname -a from the installer shell: Linux (none) 4.8.0-17-generic #19-Ubuntu SMP Sun Sep 25 05:58:36 UTC 2016 ppc64 GNU/Linux We blocked release of the powerpc iso for beta2 because of this bug in #ubuntu-release, so there is no beta-2 image :) For the net boot iso, (maybe because of the

[Kernel-packages] [Bug 1376771] Re: DisplayLink Attached Display Adapter and Monitor Not Recognized

2016-09-16 Thread Nish Aravamudan
Re-tested in 16.10, and the displaylink driver does work, but is much much laggier than in 16.04. Not yet had a chance to debug that. -- 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/1376771

[Kernel-packages] [Bug 1376771] Re: DisplayLink Attached Display Adapter and Monitor Not Recognized

2016-09-16 Thread Nish Aravamudan
Not sure if this will really help here, but I have a D3100 and I was able to drive two monitors using http://www.displaylink.com/downloads/ubuntu on 16.04. 16.10 again breaks it since the out-of-tree driver doesn't build against the later kernels (or so it seems). I wonder if this is something

[Kernel-packages] [Bug 1628284] [NEW] yakkety: daily powerpc server ISO fails to find cdrom during install in a VM

2016-09-27 Thread Nish Aravamudan
Public bug reported: xenial daily ISO successfully installs using the same method on the same system, but yakkety reports: Sep 27 21:13:14 cdrom-detect: Searching for Ubuntu installation media... Sep 27 21:13:18 cdrom-detect: Devices: '' Sep 27 21:13:23 cdrom-detect: Devices: '' Sep 27 21:13:24

[Kernel-packages] [Bug 1628284] Re: yakkety: daily powerpc server ISO fails to find cdrom during install in a VM

2016-09-27 Thread Nish Aravamudan
I'm not able to run apport-collect from the installer shell. ** 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/1628284

[Kernel-packages] [Bug 1065400] Re: Support for loading Broadcom bluetooth firmware

2016-11-17 Thread Nish Aravamudan
It seems like 14.04.0/1's kernel would still need this backport -- 3.13 base and the upstream fix went into 3.14. ** Also affects: linux (Ubuntu Trusty) Importance: Undecided Status: New -- You received this bug notification because you are a member of Kernel Packages, which is

[Kernel-packages] [Bug 1382490] Re: Broadcom Bluetooth [413c:8143] does not work at all

2016-11-17 Thread Nish Aravamudan
@chih: Was helping a user in #ubuntu today with the same device ID (413c:8143). But I think I'm a bit confused by this, I'm looking at the upstream source and I see: $ grep 413c drivers/bluetooth/btusb.c { USB_DEVICE(0x413c, 0x8197) }, { USB_DEVICE(0x413c, 0x8126), .driver_info =

[Kernel-packages] [Bug 1628284] Re: yakkety: daily powerpc server ISO fails to find cdrom during install in a VM

2016-10-12 Thread Nish Aravamudan
Hi Tim, Discussed this with Josh Powers and it seems at least this particular issue is now fixed, sorry for the delay on my end. -Nish ** Changed in: linux (Ubuntu Yakkety) Status: In Progress => Fix Released -- You received this bug notification because you are a member of Kernel

[Kernel-packages] [Bug 1654011] Re: iscsi target not DKMS compiling for kernel 4.4.0-57

2017-03-22 Thread Nish Aravamudan
*** This bug is a duplicate of bug 1612627 *** https://bugs.launchpad.net/bugs/1612627 ** This bug has been marked a duplicate of bug 1612627 iscsitarget-dkms 1.4.20.3+svn499-0ubuntu2.1 fails to build on linux-generic-lts-xenial kernel -- You received this bug notification because you

[Kernel-packages] [Bug 1667245] Re: ISST-LTE:pVM:roselp4:ubuntu 17.04: kdump failed after memory DLPAR

2017-07-31 Thread Nish Aravamudan
How is this supposed to work generally. On DLPAR, kdump needs to be reloaded -- does that the mean the kdump.service should be watching for dlpar events? -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu.

[Kernel-packages] [Bug 1680349] Re: Ubuntu 17.04: Kdump fails to capture dump on Firestone NV when machine crashes while running stress-ng.

2017-07-31 Thread Nish Aravamudan
I believe this request should be routed to the kernel team (setting of a kernel default value for POWER systems)? -- 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/1680349 Title: Ubuntu

[Kernel-packages] [Bug 1681909] Re: Ubuntu 17.04: dump is not captured in remote host when kdump over ssh is configured on firestone.

2017-07-31 Thread Nish Aravamudan
I don't see any fundamental issue with providing a NET_WAIT_TIME variable (probably should be namespaced to KDUMP_) in the kdump config file, but: 1) this seems like a hack to work around slow hardware, right? 2) it can't be automatically deduced, afaict. Or do you want to have 30s delays

[Kernel-packages] [Bug 1706946] Re: Sync crash 7.1.9-1 (main) from Debian unstable (main)

2017-08-09 Thread Nish Aravamudan
$ syncpackage -b 1706946 -s rbalint -f crash syncpackage: Source crash -> artful/Proposed: current version 7.1.8-1ubuntu2, new version 7.1.9-1 syncpackage: New changes: crash (7.1.9-1) unstable; urgency=medium * Patch from Balint Reczey : Build crash on all Linux

[Kernel-packages] [Bug 1687273] Re: Shared folder randomly not mounted

2017-05-17 Thread Nish Aravamudan
** Also affects: linux (Ubuntu) Importance: Undecided Status: New -- 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/1687273 Title: Shared folder randomly not mounted Status in

[Kernel-packages] [Bug 1807250] Re: At some point in the 18.04 cycle, /sys/bus/iio has disappeared from my system

2018-12-06 Thread Nish Aravamudan
Right, I understand fully what the bot is asking for, but it's not exactly relevant here. We are seeing (on at least two systems) a lack of IIO device discovery. If I modprobe all the iio modules, I do get a /sys/bus/iio, but no devices in it. So it feels like something is missing, but I don't

[Kernel-packages] [Bug 1807250] Re: At some point in the 18.04 cycle, /sys/bus/iio has disappeared from my system

2018-12-06 Thread Nish Aravamudan
I just tried booting into 4.15.0-20 as the release pocket has it still and it also failed to work. So now I'm wondering if/when it did work. I will try and narrow it down in the next few days. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed

[Kernel-packages] [Bug 1807250] [NEW] At some point in the 18.04 cycle, /sys/bus/iio has disappeared from my system

2018-12-06 Thread Nish Aravamudan
Public bug reported: I have a Yoga 900-13ISK and a Thinkpad T470s. Both have had working screen rotation in the past. However, I noticed today while supporting a user in #ubuntu, neither do now. No icon in the Gnome menu and: # G_MESSAGES_DEBUG=all iio-sensor-proxy ** (process:14877): DEBUG: