[Bug 1906627] Re: adcli fails, can't contact LDAP server

2020-12-03 Thread Matthew Ruffell
I built the current upstream master branch of adcli, and it too fails on Bionic: https://paste.ubuntu.com/p/vsgfxyb9X7/ This must be why the exact same patches work on Focal. The problem probably isn't adcli itself, but more likely a library it depends on. # apt depends adcli adcli Depends: li

[Bug 1906627] Re: adcli fails, can't contact LDAP server

2020-12-03 Thread Matthew Ruffell
med => Fix Released ** Changed in: adcli (Ubuntu Bionic) Status: New => In Progress ** Changed in: adcli (Ubuntu Bionic) Importance: Undecided => High ** Changed in: adcli (Ubuntu Bionic) Assignee: (unassigned) => Matthew Ruffell (mruffell) -- You received this bug no

[Bug 1906627] Re: adcli fails, can't contact LDAP server

2020-12-03 Thread Matthew Ruffell
** Tags added: regression-update -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1906627 Title: adcli fails, can't contact LDAP server To manage notifications about this bug go to: https://bugs.launc

[Bug 1906627] Re: adcli fails, can't contact LDAP server

2020-12-03 Thread Matthew Ruffell
** Also affects: adcli (Ubuntu Bionic) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1906627 Title: adcli fails, can't contact LDAP server To manage noti

[Bug 1898786] Re: bcache: Issues with large IO wait in bch_mca_scan() when shrinker is enabled

2020-12-02 Thread Matthew Ruffell
Hi Benjamin, I have good news. The SRU has completed, and the new kernels have now been released to -updates. Their versions are: Bionic: 4.15.0-126-generic Focal: 5.4.0-56-generic You can go ahead and schedule that maintenance window now, to install the latest kernel from -updates. These kerne

[Bug 1898786] Re: bcache: Issues with large IO wait in bch_mca_scan() when shrinker is enabled

2020-11-27 Thread Matthew Ruffell
Hi Benjamin, No worries about being busy. Now, the kernel is scheduled to be released early next week, around the 30th of November. I think at this stage it is best to wait it out and install the kernel once it reaches -updates. That way you will have a fixed kernel that is supported by livepatc

[Bug 1868703] Re: Support "ad_use_ldaps" flag for new AD requirements (ADV190023)

2020-11-26 Thread Matthew Ruffell
Verification for sssd on Bionic: The customer tested sssd from -updates, version 1.16.1-1ubuntu1.6 and the package from -proposed, version 1.16.1-1ubuntu1.7. Begins: Before applying the patch [package from -proposed] I confirmed open ports to our domain controllers using ss and grepping for the

[Bug 1868703] Re: Support "ad_use_ldaps" flag for new AD requirements (ADV190023)

2020-11-25 Thread Matthew Ruffell
Verification for sssd on Focal: The customer tested sssd from -updates, version 2.2.3-3 and the package from -proposed, version 2.2.3-3ubuntu0.1. Begins: I have successfully tested the [package from -proposed] on Ubuntu 20.04.1. Before applying the patch [package from -proposed] I confirmed ope

[Bug 1898786] Re: bcache: Issues with large IO wait in bch_mca_scan() when shrinker is enabled

2020-11-25 Thread Matthew Ruffell
Performing verification for Bionic. Since Benjamin hasn't responded, I will try and verify the best I can. I made a instance on AWS. I used a c5d.large instance type, and added 8gb extra EBS storage. I installed the latest kernel from -updates to get a performance baseline. kernel is 4.15.0-124-

[Bug 1898786] Re: bcache: Issues with large IO wait in bch_mca_scan() when shrinker is enabled

2020-11-25 Thread Matthew Ruffell
Performing verification for Focal. Since Benjamin hasn't responded, I will try and verify the best I can. I made a instance on AWS. I used a c5d.large instance type, and added 8gb extra EBS storage. I installed the latest kernel from -updates to get a performance baseline. kernel is 5.4.0-54-gen

[Bug 1868703] Re: Support "ad_use_ldaps" flag for new AD requirements (ADV190023)

2020-11-24 Thread Matthew Ruffell
Performing verification of adcli on Bionic The patches for Bionic are a bit more involved, as it adds the whole --use-ldaps ecosystem. Firstly, I installed adcli 0.8.2-1 from -updates. The manpage did not have any mention of --use-ldaps, and if I ran a command with --use- ldaps, it would complain

[Bug 1868703] Re: Support "ad_use_ldaps" flag for new AD requirements (ADV190023)

2020-11-24 Thread Matthew Ruffell
Performing verification of adcli on Focal The patches for Focal are a bit more involved, as it adds the whole --use-ldaps ecosystem. Firstly, I installed adcli 0.9.0-1 from -updates. The manpage did not have any mention of --use-ldaps, and if I ran a command with --use- ldaps, it would complain i

[Bug 1868703] Re: Support "ad_use_ldaps" flag for new AD requirements (ADV190023)

2020-11-24 Thread Matthew Ruffell
Performing verification of adcli on Groovy. Groovy only required one patch, which fixed a missed enablement of --use-ldaps for the testjoin and update commands. So, just testing those two. I installed adcli 0.9.0-1ubuntu1 from -updates, and I set everything up by issuing a join command. After th

[Bug 1868703] Re: Support "ad_use_ldaps" flag for new AD requirements (ADV190023)

2020-11-24 Thread Matthew Ruffell
Hi Tobias, thanks for testing and verifying! I really appreciate it, and it's good to hear that everything works. I'll just add some of my own test output below, and we should be good to go for a release to -updates in about a week's time. -- You received this bug notification because you are a

[Bug 1898786] Re: bcache: Issues with large IO wait in bch_mca_scan() when shrinker is enabled

2020-11-22 Thread Matthew Ruffell
Hi Benjamin, The kernel team have built the next kernel update, and they have placed it in -proposed for verification. The versions are 4.15.0-125-generic for Bionic, and 5.4.0-55-generic for Focal. Can you please schedule a maintenance window for the Launchpad git server, to install the new ker

[Bug 1896578] Re: raid10: Block discard is very slow, causing severe delays for mkfs and fstrim operations

2020-11-17 Thread Matthew Ruffell
Performing verification for Bionic. I enabled -proposed and installed 4.15.0-125-generic to a i3.8xlarge AWS instance. >From there, I followed the testcase steps: $ uname -rv 4.15.0-125-generic #128-Ubuntu SMP Mon Nov 9 20:51:00 UTC 2020 $ lsblk NAMEMAJ:MIN RM SIZE RO TYPE MOUNTPOINT xvda

[Bug 1896578] Re: raid10: Block discard is very slow, causing severe delays for mkfs and fstrim operations

2020-11-17 Thread Matthew Ruffell
Performing verification for Focal. I enabled -proposed and installed 5.4.0-55-generic to a i3.8xlarge AWS instance. >From there, I followed the testcase steps: $ uname -rv 5.4.0-55-generic #61-Ubuntu SMP Mon Nov 9 20:49:56 UTC 2020 $ lsblk NAMEMAJ:MIN RM SIZE RO TYPE MOUNTPOINT xvda202:

[Bug 1896578] Re: raid10: Block discard is very slow, causing severe delays for mkfs and fstrim operations

2020-11-17 Thread Matthew Ruffell
Performing verification for Groovy. I enabled -proposed and installed 5.8.0-30-generic to a i3.8xlarge AWS instance. >From there, I followed the testcase steps: $ uname -rv 5.8.0-30-generic #32-Ubuntu SMP Mon Nov 9 21:03:15 UTC 2020 $ lsblk NAMEMAJ:MIN RM SIZE RO TYPE MOUNTPOINT xvda202

[Bug 1896154] Re: btrfs: trimming a btrfs device which has been shrunk previously fails and fills root disk with garbage data

2020-11-17 Thread Matthew Ruffell
Performing verification for Focal. I created a i3.large instance on AWS, since it has 1x NVMe drive that supports trim and block discard. I ensured that I could reproduce the problem with 5.4.0-54-generic from -updates, and I followed the instructions in the Testcase section, and the final fstrim

[Bug 1868703] Re: Support "ad_use_ldaps" flag for new AD requirements (ADV190023)

2020-11-09 Thread Matthew Ruffell
** Description changed: [Impact] Microsoft has released a new security advisory for Active Directory (AD) which outlines that man-in-the-middle attacks can be performed on a LDAP server, such as AD DS, that works by an attacker forwarding an authentication request to a Windows LDAP se

[Bug 1868703] Re: Support "ad_use_ldaps" flag for new AD requirements (ADV190023)

2020-11-09 Thread Matthew Ruffell
Attached is a revised debdiff for adcli in Bionic. ** Patch added: "adcli debdiff for Bionic v2" https://bugs.launchpad.net/ubuntu/+source/sssd/+bug/1868703/+attachment/5432874/+files/lp1868703_adcli_bionic_v2.debdiff -- You received this bug notification because you are a member of Ubuntu B

[Bug 1868703] Re: Support "ad_use_ldaps" flag for new AD requirements (ADV190023)

2020-11-09 Thread Matthew Ruffell
Attached is a revised debdiff for adcli for Focal. ** Patch added: "adcli debdiff for Focal v2" https://bugs.launchpad.net/ubuntu/+source/sssd/+bug/1868703/+attachment/5432871/+files/lp1868703_adcli_focal_v2.debdiff -- You received this bug notification because you are a member of Ubuntu Bug

[Bug 1868703] Re: Support "ad_use_ldaps" flag for new AD requirements (ADV190023)

2020-11-09 Thread Matthew Ruffell
Attached is a debdiff for adcli in Groovy. ** Patch added: "adcli debdiff for groovy" https://bugs.launchpad.net/ubuntu/+source/sssd/+bug/1868703/+attachment/5432870/+files/lp1868703_adcli_groovy.debdiff -- You received this bug notification because you are a member of Ubuntu Bugs, which is

[Bug 1868703] Re: Support "ad_use_ldaps" flag for new AD requirements (ADV190023)

2020-11-09 Thread Matthew Ruffell
Attached is a debdiff for adcli for Hirsute. ** Patch added: "adcli debdiff for hirsute" https://bugs.launchpad.net/ubuntu/+source/sssd/+bug/1868703/+attachment/5432869/+files/lp1868703_adcli_hirsute.debdiff -- You received this bug notification because you are a member of Ubuntu Bugs, which

[Bug 1868703] Re: Support "ad_use_ldaps" flag for new AD requirements (ADV190023)

2020-11-09 Thread Matthew Ruffell
Attached is a revised debdiff for sssd for Bionic. ** Patch added: "sssd debdiff for Bionic v2" https://bugs.launchpad.net/ubuntu/+source/sssd/+bug/1868703/+attachment/5432867/+files/lp1868703_sssd_bionic_v2.debdiff -- You received this bug notification because you are a member of Ubuntu Bug

[Bug 1868703] Re: Support "ad_use_ldaps" flag for new AD requirements (ADV190023)

2020-11-09 Thread Matthew Ruffell
Attached is a revised debdiff for sssd for Focal. ** Patch added: "sssd debdiff for Focal v2" https://bugs.launchpad.net/ubuntu/+source/sssd/+bug/1868703/+attachment/5432866/+files/lp1868703_sssd_focal_v2.debdiff -- You received this bug notification because you are a member of Ubuntu Bugs,

[Bug 1868703] Re: Support "ad_use_ldaps" flag for new AD requirements (ADV190023)

2020-11-09 Thread Matthew Ruffell
** Patch removed: "adcli debdiff for Focal" https://bugs.launchpad.net/ubuntu/+source/sssd/+bug/1868703/+attachment/5432450/+files/lp1868703_adcli_focal.debdiff ** Patch removed: "sssd debdiff for Focal" https://bugs.launchpad.net/ubuntu/+source/sssd/+bug/1868703/+attachment/5432451/+files

[Bug 1868703] Re: Support "ad_use_ldaps" flag for new AD requirements (ADV190023)

2020-11-09 Thread Matthew Ruffell
** Description changed: [Impact] Microsoft has released a new security advisory for Active Directory (AD) which outlines that man-in-the-middle attacks can be performed on a LDAP server, such as AD DS, that works by an attacker forwarding an authentication request to a Windows LDAP se

[Bug 1868703] Re: Support "ad_use_ldaps" flag for new AD requirements (ADV190023)

2020-11-08 Thread Matthew Ruffell
** Tags added: sts-sponsor -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1868703 Title: Support "ad_use_ldaps" flag for new AD requirements (ADV190023) To manage notifications about this bug go to:

[Bug 1868703] Re: Support "ad_use_ldaps" flag for new AD requirements (ADV190023)

2020-11-08 Thread Matthew Ruffell
Attached is a sssd debdiff for Focal ** Patch added: "sssd debdiff for Focal" https://bugs.launchpad.net/ubuntu/+source/sssd/+bug/1868703/+attachment/5432451/+files/lp1868703_sssd_focal.debdiff -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed

[Bug 1868703] Re: Support "ad_use_ldaps" flag for new AD requirements (ADV190023)

2020-11-08 Thread Matthew Ruffell
Attached is a sssd debdiff for Bionic ** Patch added: "sssd debdiff for Bionic" https://bugs.launchpad.net/ubuntu/+source/sssd/+bug/1868703/+attachment/5432453/+files/lp1868703_sssd_bionic.debdiff -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscri

[Bug 1868703] Re: Support "ad_use_ldaps" flag for new AD requirements (ADV190023)

2020-11-08 Thread Matthew Ruffell
Attached is a debdiff for adcli on Focal. ** Patch added: "adcli debdiff for Focal" https://bugs.launchpad.net/ubuntu/+source/sssd/+bug/1868703/+attachment/5432450/+files/lp1868703_adcli_focal.debdiff -- You received this bug notification because you are a member of Ubuntu Bugs, which is sub

[Bug 1868703] Re: Support "ad_use_ldaps" flag for new AD requirements (ADV190023)

2020-11-08 Thread Matthew Ruffell
Attached is a adcli debdiff for Bionic ** Patch added: "adcli debdiff for Bionic" https://bugs.launchpad.net/ubuntu/+source/sssd/+bug/1868703/+attachment/5432452/+files/lp1868703_adcli_bionic.debdiff -- You received this bug notification because you are a member of Ubuntu Bugs, which is subs

[Bug 1868703] Re: Support "ad_use_ldaps" flag for new AD requirements (ADV190023)

2020-11-08 Thread Matthew Ruffell
** Summary changed: - Support new AD requirements (ADV190023) + Support "ad_use_ldaps" flag for new AD requirements (ADV190023) ** Description changed: - Please backport the following patch to add the option ad_use_ldaps. + [Impact] - With this new boolean option the AD provider should only u

[Bug 1896578] Re: raid10: Block discard is very slow, causing severe delays for mkfs and fstrim operations

2020-10-28 Thread Matthew Ruffell
** Description changed: BugLink: https://bugs.launchpad.net/bugs/1896578 [Impact] Block discard is very slow on Raid10, which causes common use cases which invoke block discard, such as mkfs and fstrim operations, to take a very long time. For example, on a i3.8xlarge instance

[Bug 1896578] Re: raid10: Block discard is very slow, causing severe delays for mkfs and fstrim operations

2020-10-27 Thread Matthew Ruffell
** Description changed: BugLink: https://bugs.launchpad.net/bugs/1896578 [Impact] Block discard is very slow on Raid10, which causes common use cases which invoke block discard, such as mkfs and fstrim operations, to take a very long time. For example, on a i3.8xlarge instance

[Bug 1896578] Re: raid10: Block discard is very slow, causing severe delays for mkfs and fstrim operations

2020-10-25 Thread Matthew Ruffell
** Description changed: BugLink: https://bugs.launchpad.net/bugs/1896578 [Impact] Block discard is very slow on Raid10, which causes common use cases which invoke block discard, such as mkfs and fstrim operations, to take a very long time. For example, on a i3.8xlarge instance

[Bug 1896578] Re: raid10: Block discard is very slow, causing severe delays for mkfs and fstrim operations

2020-10-24 Thread Matthew Ruffell
** Description changed: BugLink: https://bugs.launchpad.net/bugs/1896578 [Impact] Block discard is very slow on Raid10, which causes common use cases which invoke block discard, such as mkfs and fstrim operations, to take a very long time. For example, on a i3.8xlarge instance

[Bug 1896578] Re: raid10: Block discard is very slow, causing severe delays for mkfs and fstrim operations

2020-10-24 Thread Matthew Ruffell
** Description changed: BugLink: https://bugs.launchpad.net/bugs/1896578 [Impact] Block discard is very slow on Raid10, which causes common use cases which invoke block discard, such as mkfs and fstrim operations, to take a very long time. For example, on a i3.8xlarge instance

[Bug 1896578] Re: raid10: Block discard is very slow, causing severe delays for mkfs and fstrim operations

2020-10-21 Thread Matthew Ruffell
** Description changed: BugLink: https://bugs.launchpad.net/bugs/1896578 [Impact] Block discard is very slow on Raid10, which causes common use cases which invoke block discard, such as mkfs and fstrim operations, to take a very long time. For example, on a i3.8xlarge instance

[Bug 1868703] Re: Support new AD requirements (ADV190023)

2020-10-21 Thread Matthew Ruffell
Hi Tobias, Thorstein, and anyone who is after a backport of these patches, I have completed backporting the below patches to the Bionic and Focal adcli and sssd packages, and I am looking for some help with testing. If you have some spare time, a Windows Active Directory server available, and some

[Bug 1868703] Re: Support new AD requirements (ADV190023)

2020-10-21 Thread Matthew Ruffell
** Changed in: adcli (Ubuntu Bionic) Importance: Undecided => Medium ** Changed in: adcli (Ubuntu Bionic) Status: Confirmed => In Progress ** Changed in: adcli (Ubuntu Bionic) Assignee: (unassigned) => Matthew Ruffell (mruffell) ** Changed in: adcli (Ubuntu Focal) I

[Bug 1898786] Re: bcache: Issues with large IO wait in bch_mca_scan() when shrinker is enabled

2020-10-20 Thread Matthew Ruffell
Patches have been submitted to the Ubuntu kernel mailing list: Patchset for Bionic: https://lists.ubuntu.com/archives/kernel-team/2020-October/114166.html https://lists.ubuntu.com/archives/kernel-team/2020-October/114167.html https://lists.ubuntu.com/archives/kernel-team/2020-October/114168.html h

[Bug 1898786] Re: bcache: Issues with large IO wait in bch_mca_scan() when shrinker is enabled

2020-10-20 Thread Matthew Ruffell
** Description changed: BugLink: https://bugs.launchpad.net/bugs/1898786 [Impact] Systems that utilise bcache can experience extremely high IO wait times when under constant IO pressure. The IO wait times seem to stay at a consistent 1 second, and never drop as long as the bcache s

[Bug 1898786] Re: bcache: Issues with large IO wait in bch_mca_scan() when shrinker is enabled

2020-10-20 Thread Matthew Ruffell
ed => Medium ** Changed in: linux (Ubuntu Bionic) Assignee: (unassigned) => Matthew Ruffell (mruffell) ** Changed in: linux (Ubuntu Focal) Assignee: (unassigned) => Matthew Ruffell (mruffell) ** Description changed: - Hello, + BugLink: https://bugs.launchpad.net/bugs/1898786

[Bug 1886592] Re: Add support for VMware Horizon SSO to gnome-shell

2020-10-18 Thread Matthew Ruffell
Attached is a debdiff for gnome-shell for Focal with the required patches to implement VMware Horizon SSO support. ** Patch added: "gnome-shell debdiff for Focal" https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1886592/+attachment/5423914/+files/lp1886592_focal.debdiff -- You rece

[Bug 1886592] Re: Add support for VMware Horizon SSO to gnome-shell

2020-10-18 Thread Matthew Ruffell
Attached is a debdiff for Bionic which implements support for VMware Horizon SSO in gnome-shell. ** Patch added: "gnome-shell debdiff for Bionic" https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1886592/+attachment/5423915/+files/lp1886592_bionic.debdiff -- You received this bug no

[Bug 1886592] Re: Add support for VMware Horizon SSO to gnome-shell

2020-10-18 Thread Matthew Ruffell
** Description changed: [Impact] VMware Horizon is a VDI product that runs atop of VMware's normal virtualisation stack, and it supports SSO authentication for login. In the past, the VMware Horizon agent has been pretty buggy, and requires SSO patches to be present to function, ot

[Bug 1898786] Re: Issue with bcache bch_mca_scan causing huge IO wait

2020-10-13 Thread Matthew Ruffell
Hi Benjamin, Great to hear that the early results look promising. Yes, let's give it a week, so we can ensure that these patches do their job under the high loads the git server faces each day over the week. If things still look good early next week, I will go ahead and prepare the patches for S

[Bug 1898786] Re: Issue with bcache bch_mca_scan causing huge IO wait

2020-10-08 Thread Matthew Ruffell
Hi Benjamin, I think Dan is onto something. The following commit was merged in upstream 5.5-rc1, but was backported to 4.15.0-87-generic through upstream stable: commit 9fcc34b1a6dd4b8e5337e2b6ef45e428897eca6b Author: Coly Li Date: Wed Nov 13 16:03:24 2019 +0800 Subject: bcache: at least try

[Bug 1896725] Re: xenial 4.4.0-191-generic in -proposed has a regression

2020-10-06 Thread Matthew Ruffell
Verifying for xenial: I enabled -proposed, and installed 4.4.0-1116-aws: $ uname -rv 4.4.0-1116-aws #129-Ubuntu SMP Tue Sep 29 18:17:22 UTC 2020 I rebooted, and was able to ssh in, and dmesg was clean. I then installed 4.4.0-192-generic: $ uname -rv 4.4.0-192-generic #222-Ubuntu SMP Tue Sep 29

[Bug 1896725] Re: xenial 4.4.0-191-generic in -proposed has a regression

2020-09-23 Thread Matthew Ruffell
Hello @shaynagar, thank you very much for reporting! We will look into this asap. More details: 4.4.0-190-generic is fine, 4.4.0-191-generic contains the regression. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchp

[Bug 1896725] Re: Kernel panic with AWS 4.4.0-1115-aws

2020-09-23 Thread Matthew Ruffell
** Also affects: linux (Ubuntu Xenial) Importance: Undecided Status: New ** Changed in: linux (Ubuntu Xenial) Importance: Undecided => High ** Description changed: - This is a POTENTIAL REGRESSION. + [Impact] - This issue occurs on one of the AWS instance "t2.medium" + The new xe

[Bug 1894591] Re: clock: overriding the clocksource should select the requested clocksource

2020-09-22 Thread Matthew Ruffell
Performing verification: First, reproducing on older kernel: $ uname -rv 4.4.0-190-generic #220-Ubuntu SMP Fri Aug 28 23:02:15 UTC 2020 $ grep "clocksource" /etc/default/grub GRUB_CMDLINE_LINUX_DEFAULT="clocksource=tsc" $ cat /proc/cmdline BOOT_IMAGE=/boot/vmlinuz-4.4.0-190-generic root=UUID=f6

[Bug 1896578] Re: raid10: Block discard is very slow, causing severe delays for mkfs and fstrim operations

2020-09-22 Thread Matthew Ruffell
** Description changed: BugLink: https://bugs.launchpad.net/bugs/1896578 [Impact] Block discard is very slow on Raid10, which causes common use cases which invoke block discard, such as mkfs and fstrim operations, to take a very long time. For example, on a i3.8xlarge instance

[Bug 1896578] [NEW] raid10: Block discard is very slow, causing severe delays for mkfs and fstrim operations

2020-09-22 Thread Matthew Ruffell
h support block discard will be affected. Traditional hard disks, or SSD devices which do not support block discard would not be affected. If a regression were to occur, users could work around the issue by running "mkfs.xfs -K " which would skip block discard entirely. ** Affects: linux

[Bug 1896154] [NEW] btrfs: trimming a btrfs device which has been shrunk previously fails and fills root disk with garbage data

2020-09-17 Thread Matthew Ruffell
d to upstream stable, and are trusted by the community. ** Affects: linux (Ubuntu) Importance: Undecided Status: Fix Released ** Affects: linux (Ubuntu Focal) Importance: Medium Assignee: Matthew Ruffell (mruffell) Status: In Progress ** Tags: sts ** Also affects:

[Bug 1756311] Re: fstrim and discard operations take too long to complete

2020-09-14 Thread Matthew Ruffell
*** This bug is a duplicate of bug 1756315 *** https://bugs.launchpad.net/bugs/1756315 ** This bug has been marked a duplicate of bug 1756315 fstrim and discard operations take too long to complete - Ubuntu 16.04 -- You received this bug notification because you are a member of Ubuntu Bug

[Bug 1756315] Re: fstrim and discard operations take too long to complete - Ubuntu 16.04

2020-09-14 Thread Matthew Ruffell
Hello Alexandre, I tried to reproduce this bug, and I believe it has been fixed. I started a i3.4xlarge instance on AWS, with Xenial as the distro: $ uname -rv 4.4.0-1112-aws #124-Ubuntu SMP Fri Jul 24 11:10:25 UTC 2020 >From there, I checked the NVMe disks: $ lsblk NAMEMAJ:MIN RM SIZE RO

[Bug 1837810] Re: KVM: Fix zero_page reference counter overflow when using KSM on KVM compute host

2020-09-08 Thread Matthew Ruffell
As promised, I have an update on the lab machine I left running ksm_refcnt_overflow.sh for a week straight. The machine was running 4.15.0-116-generic from -proposed: $ uname -rv 4.15.0-116-generic #117-Ubuntu SMP Fri Aug 28 16:04:22 UTC 2020 $ uptime 04:36:14 up 7 days, 1 min, 1 user, load av

[Bug 1894104] Re: Patriot PXD USB SSD cannot be mount with type-C connector

2020-09-06 Thread Matthew Ruffell
How about you try a slightly older kernel then: To install 5.4.0-31-generic: $ sudo apt install linux-image-5.4.0-31-generic linux- modules-5.4.0-31-generic linux-modules-extra-5.4.0-31-generic linux- headers-5.4.0-31-generic linux-headers-5.4.0-31 Then reboot your computer. Do the same as you d

[Bug 1894591] Re: clock: overriding the clocksource should select the requested clocksource

2020-09-06 Thread Matthew Ruffell
** Description changed: BugLink: https://bugs.launchpad.net/bugs/1894591 [Impact] The default clocksource for a KVM VM is kvm-clock, and I happen to need tsc. $ cat /sys/devices/system/clocksource/clocksource0/current_clocksource kvm-clock If I edit /etc/default/grub and

[Bug 1894591] [NEW] clock: overriding the clocksource should select the requested clocksource

2020-09-06 Thread Matthew Ruffell
. ** Affects: linux (Ubuntu) Importance: Undecided Status: Fix Released ** Affects: linux (Ubuntu Xenial) Importance: Medium Assignee: Matthew Ruffell (mruffell) Status: In Progress ** Tags: sts ** Also affects: linux (Ubuntu Xenial) Importance: Undecided

[Bug 1894104] Re: Patriot PXD USB SSD cannot be mount with type-C connector

2020-09-03 Thread Matthew Ruffell
@braingateway Can you please try booting into the 5.4.0-42-generic kernel and see if that works? When you turn your computer on, press and hold the shift key to access the GRUB boot menu. Select "Advanced Options" and then "Ubuntu, with Linux 5.4.0-42-generic" If 5.4.0-42-generic works and 5.4.

[Bug 1837810] Re: KVM: Fix zero_page reference counter overflow when using KSM on KVM compute host

2020-09-01 Thread Matthew Ruffell
As requested by the kernel team (in https://lists.ubuntu.com/archives /kernel-team/2020-August/112775.html), I will do some additional testing for this SRU to really make sure it won't cause any regressions. I provisioned a lab machine on segmaas, running Bionic. I installed the 4.15.0-116-generic

[Bug 1837810] Re: KVM: Fix zero_page reference counter overflow when using KSM on KVM compute host

2020-09-01 Thread Matthew Ruffell
Verification steps for focal: Again, I made sure I can reproduce on the existing 5.4.0-42-generic kernel. I copied ksm_refcnt_overflow.sh and zero_page_refcount.c to the VM, and built the kernel module, and inserted it into the kernel: $ sudo insmod zero_page_refcount.ko $ cat /proc/zero_page_re

[Bug 1837810] Re: KVM: Fix zero_page reference counter overflow when using KSM on KVM compute host

2020-09-01 Thread Matthew Ruffell
Verification steps for Bionic: First, I made sure I could reproduce the problem on 4.15.0-115-generic. I made a fresh Bionic VM, and copied over the ksm_refcnt_overflow.sh and zero_page_refcound.c files. I built the kernel module, and inserted it into the kernel. >From there, I checked the zero

[Bug 1886112] Re: Enabling DMESG_RESTRICT in Groovy Onward

2020-08-30 Thread Matthew Ruffell
As 5.8.0-16-generic has now been released to the -release pocket, CONFIG_SECURITY_DMESG_RESTRICT is now enabled in Groovy. Marking the changes to the kernel as Fix Released. ** Changed in: linux (Ubuntu Groovy) Status: Fix Committed => Fix Released -- You received this bug notification be

[Bug 1886112] Re: Enabling DMESG_RESTRICT in Groovy Onward

2020-08-30 Thread Matthew Ruffell
As per my most recent email to ubuntu-devel, I am marking the changes to util-linux as Won't Fix. Relevant mailing list discussion (for future reference): Ansgar responded on debian-devel mentioning that adding cap_syslog to dmesg enables the user to clear the kernel log buffer: https://lists.de

[Bug 1882478] Re: smpboot: don't call topology_sane() when Sub-NUMA-Clustering is enabled

2020-08-25 Thread Matthew Ruffell
I asked the customer to test 4.15.0-114-generic on Xenial HWE from -proposed on their HP DL360 Gen10 machines with the Intel Xeon Gold 5120 CPU. The machine has Sub-NUMA Clustering enabled and it is active. The machine boots successfully, and there are no call traces or kernel oops present: # una

[Bug 1887607] Re: NFSv4.1: Interrupted connections cause high bandwidth RPC ping-pong between client and server

2020-08-18 Thread Matthew Ruffell
I installed 4.15.0-114-generic from -proposed to my test client machine, which is a Ubuntu 18.04 Desktop VM. I mounted two NFS shares, one with sec=sys, and the other with sec=krb5p. I then opened each share up in separate tabs in Nautilus. I then CUT a file from the sec=sys share, and PASTED it

[Bug 1842562] Re: AWS: Add udev rule to set Instance Store device IO timeouts

2020-08-18 Thread Matthew Ruffell
** Changed in: cloud-init (Ubuntu) Status: In Progress => Won't Fix ** Changed in: cloud-init (Ubuntu Xenial) Status: In Progress => Won't Fix ** Changed in: cloud-init (Ubuntu Bionic) Status: In Progress => Won't Fix -- You received this bug notification because you are a

[Bug 1856608] Re: [Regression] usb usb2-port2: Cannot enable. Maybe the USB cable is bad?

2020-08-17 Thread Matthew Ruffell
Hi @pau-capdevila Your USB problem is unrelated to the issue in this bug, since your USB device fails to do the initial handshake and enumeration. > usb 1-1.2.1: device descriptor read/64, error -32 >From /usr/include/asm-generic/errno-base.h, Error -32 is: #define EPIPE 32 /* Bro

[Bug 1856608] Re: [Regression] usb usb2-port2: Cannot enable. Maybe the USB cable is bad?

2020-08-16 Thread Matthew Ruffell
Hi @jeremyn54 > the error can be consistently reproduced on both signed and testing kernels. Reproduced on the test kernel? The one that I built in the ppa? If that's the case, then "usb: handle warm-reset port requests on hub resume" might not be to blame after all. I had a look at your kernel

[Bug 1886112] Re: Enabling DMESG_RESTRICT in Groovy Onward

2020-08-16 Thread Matthew Ruffell
Wrote to debian-devel to see if upstream is interested in carrying the debian postinstall changes for util-linux: https://lists.debian.org /debian-devel/2020/08/msg00107.html -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs

[Bug 1837810] Re: KVM: Fix zero_page reference counter overflow when using KSM on KVM compute host

2020-08-16 Thread Matthew Ruffell
Attached is a script to create and destroy VMs in a loop, to try and increment the zero_page reference counter. ** Attachment added: "Reproducer script to create and destroy VMs" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1837810/+attachment/5402013/+files/ksm_refcnt_overflow.sh --

[Bug 1837810] Re: KVM: Fix zero_page reference counter overflow when using KSM on KVM compute host

2020-08-16 Thread Matthew Ruffell
Attached is a kernel module which lets you see the contents of the zero_page reference counter, and to set it to near overflow. ** Attachment added: "kernel module to view zero_page reference counter" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1837810/+attachment/5402014/+files/zero_

[Bug 1837810] Re: KVM: Fix zero_page reference counter overflow when using KSM on KVM compute host

2020-08-13 Thread Matthew Ruffell
** Summary changed: - qemu instance gets paused with error: kvm run failed Bad address + KVM: Fix zero_page reference counter overflow when using KSM on KVM compute host ** Description changed: - We are occasionally running into the below qemu error on our Ubuntu16 - KVM hypervisors managed usi

[Bug 1837810] Re: qemu instance gets paused with error: kvm run failed Bad address

2020-08-13 Thread Matthew Ruffell
ee: (unassigned) => Matthew Ruffell (mruffell) ** Changed in: linux (Ubuntu Focal) Assignee: (unassigned) => Matthew Ruffell (mruffell) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1837810 Title:

[Bug 1856608] Re: [Regression] usb usb2-port2: Cannot enable. Maybe the USB cable is bad?

2020-08-13 Thread Matthew Ruffell
@jeremyn54 Thanks for testing the test kernel. I suppose this means that "usb: handle warm-reset port requests on hub resume" is still causing us trouble. @everyone Can you please unplug all USB devices from your computer, and connect them one by one until you find the device which causes the "u

[Bug 1859873] Re: Reapply "usb: handle warm-reset port requests on hub resume"

2020-08-11 Thread Matthew Ruffell
The customer that suffered the perceived regression enabled -proposed and installed the 4.15.0-113-generic kernel to their Bionic test machine. This test machine has had its non-spec complaint USB cable replaced with a fresh known good USB compliant cable. The 4.15.0-113-generic kernel performed

[Bug 1886112] Re: Enabling DMESG_RESTRICT in Groovy Onward

2020-08-10 Thread Matthew Ruffell
Attached is a rebased debdiff for util-linux, which implements the permission changes to the dmesg binary. ** Patch removed: "util-linux debdiff for Groovy" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1886112/+attachment/5395389/+files/lp1886112_util-linux_groovy.debdiff ** Patch add

[Bug 1837810] Re: qemu instance gets paused with error: kvm run failed Bad address

2020-08-06 Thread Matthew Ruffell
Hello @pooja-9, @kphatak-pf9 and @vlee, You wouldn't happen to have Kernel Samepage Merging (KSM) enabled on your compute nodes would you? You can check by looking at the value of: $ cat /sys/kernel/mm/ksm/run If it is 1, your nodes have it enabled, and if it is 0 or "missing", you don't have i

[Bug 1856608] Re: [Regression] usb usb2-port2: Cannot enable. Maybe the USB cable is bad?

2020-08-05 Thread Matthew Ruffell
@bamoqi, @speedym, @david-sinnott-morgan: I have prepared a test kernel based on 5.4.0-42-generic, for Ubuntu 20.04 in the following ppa. It hasn't finished building yet, Launchpad is taking a long time. Please make sure it has finished building before installing. https://launchpad.net/~mruffe

[Bug 1887607] Re: NFSv4.1: Interrupted connections cause high bandwidth RPC ping-pong between client and server

2020-07-28 Thread Matthew Ruffell
** Description changed: BugLink: https://bugs.launchpad.net/bugs/1887607 [Impact] There is a bug in NFS v4.1 that causes a large amount of RPC calls between a client and server when a previous RPC call is interrupted. This uses a large amount of bandwidth and can saturate the netwo

[Bug 1887607] Re: NFSv4.1: Interrupted connections cause high bandwidth RPC ping-pong between client and server

2020-07-28 Thread Matthew Ruffell
** Description changed: BugLink: https://bugs.launchpad.net/bugs/1887607 [Impact] There is a bug in NFS v4.1 that causes a large amount of RPC calls between a client and server when a previous RPC call is interrupted. This uses a large amount of bandwidth and can saturate the netwo

[Bug 1887607] Re: NFSv4.1: Interrupted connections cause high bandwidth RPC ping-pong between client and server

2020-07-28 Thread Matthew Ruffell
** Summary changed: - NFS4.2: Cutting and Pasting files from NFS sec=sys to NFS sec=krb5p causes NFS to hang + NFSv4.1: Interrupted connections cause high bandwidth RPC ping-pong between client and server ** Description changed: BugLink: https://bugs.launchpad.net/bugs/1887607 [Impact]

[Bug 1772556] Re: d-i netinstall fails due to missing apt-transport-https package

2020-07-28 Thread Matthew Ruffell
As a final sanity check, I built a new debian-installer monolithic netinstall ISO image, along with the usual vmlinuz / initrd.gz files. When I built them, I enabled -proposed, and debootstrap-udeb 1.0.95ubuntu0.7 was included in the generated MANIFEST.udeb file. The ISO images and initrd.gz files

[Bug 1772556] Re: d-i netinstall fails due to missing apt-transport-https package

2020-07-27 Thread Matthew Ruffell
Performing verification of debootstrap using Mauricio's script from comment #10. Focal == Original First, using debootstrap from -updates: $ apt-cache policy debootstrap | grep Installed Installed: 1.0.118ubuntu1.1 $ tail -n1 *-focal-*.log ==> debootstrap-updates-focal-buildd-http

[Bug 1772556] Re: d-i netinstall fails due to missing apt-transport-https package

2020-07-27 Thread Matthew Ruffell
Performing verification of debootstrap in -proposed using Mauricio's script from comment #10. Bionic == Original First, using debootstrap from -updates: $ apt-cache policy debootstrap | grep Installed Installed: 1.0.95ubuntu0.6 $ tail -n1 *-bionic-*.log ==> debootstrap-updates-bio

[Bug 1772556] Re: d-i netinstall fails due to missing apt-transport-https package

2020-07-27 Thread Matthew Ruffell
I looked into the autopkgtest regressions. The pbuilder and sbuilder failures are due to them attempting to build procenv in a Groovy chroot which was made with debootstrap. procenv currently FTBFS on Groovy, due to changes in GCC10 to -Werror=format- overflow. ``` gcc -DHAVE_CONFIG_H -I. -I..

[Bug 1889138] [NEW] procenv is FTBFS in Groovy

2020-07-27 Thread Matthew Ruffell
Public bug reported: [Impact] procenv is currently FTBFS on Ubuntu 20.10 Groovy Gorilla with GCC 10 version (Ubuntu 10.2.0-3ubuntu1) 10.2.0. Details: ``` gcc -DHAVE_CONFIG_H -I. -I.. -I . -I ./platform -I ./platform/linux -D PROCENV_PLATFORM_LINUX -pedantic -std=gnu99 -Wall -Wunused

[Bug 1859873] Re: Reapply "usb: handle warm-reset port requests on hub resume"

2020-07-27 Thread Matthew Ruffell
** Changed in: linux (Ubuntu Eoan) Status: In Progress => Won't Fix ** Changed in: linux (Ubuntu Eoan) Assignee: Matthew Ruffell (mruffell) => (unassigned) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ub

[Bug 1859873] Re: Reapply "usb: handle warm-reset port requests on hub resume"

2020-07-23 Thread Matthew Ruffell
** Changed in: linux (Ubuntu Bionic) Assignee: (unassigned) => Matthew Ruffell (mruffell) ** Changed in: linux (Ubuntu Eoan) Assignee: (unassigned) => Matthew Ruffell (mruffell) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscri

[Bug 1859873] Re: Reapply "usb: handle warm-reset port requests on hub resume"

2020-07-23 Thread Matthew Ruffell
** Description changed: - This bug tracks the reapplication of "usb: handle warm-reset port - requests on hub resume". + [Impact] + + We wish to reapply "usb: handle warm-reset port requests on hub resume". We reverted "usb: handle warm-reset port requests on hub resume" from - the Ubuntu ke

[Bug 1859873] Re: Reapply "usb: handle warm-reset port requests on hub resume"

2020-07-23 Thread Matthew Ruffell
** No longer affects: linux (Ubuntu Focal) ** Changed in: linux (Ubuntu) Status: Confirmed => Fix Released ** Changed in: linux (Ubuntu Bionic) Status: Confirmed => In Progress ** Changed in: linux (Ubuntu Eoan) Status: Confirmed => In Progress -- You received this bug not

[Bug 1886112] Re: Enabling DMESG_RESTRICT in Groovy Onward

2020-07-23 Thread Matthew Ruffell
Attached is a debdiff for util-linux which implements the permission and capability changes to the dmesg binary. ** Patch added: "util-linux debdiff for Groovy" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1886112/+attachment/5395389/+files/lp1886112_util-linux_groovy.debdiff -- You

[Bug 1886112] Re: Enabling DMESG_RESTRICT in Groovy Onward

2020-07-23 Thread Matthew Ruffell
Attached is a procps debdiff for groovy, which adds documentation to /etc/sysctl.d/10-kernel-hardening.conf and a commented out way to disable DMESG_RESTRICT. ** Patch added: "procps debdiff for Groovy" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1886112/+attachment/5395388/+files/lp1

[Bug 1886112] Re: Enabling DMESG_RESTRICT in Groovy Onward

2020-07-23 Thread Matthew Ruffell
I emailed Seth Forshee asking about what happens when Groovy's kernel becomes Focal's HWE kernel, and he mentioned that the kernel team has processes in place to handle config changes, and that it isn't a problem. So we will go with the more secure by default way, and enable CONFIG_SECURITY_DMESG_

[Bug 1772556] Re: d-i netinstall fails due to missing apt-transport-https package

2020-07-22 Thread Matthew Ruffell
The VM on the left is using the current 18.04.4 LTS mini.iso provided from http://archive.ubuntu.com/ubuntu/dists/bionic-updates/main /installer-amd64/current/images/netboot/ with a date of 2020-01-30. The VM on the right is using the mini.iso I created that contains the test debootstrap package,

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