[Kernel-packages] [Bug 1896604] Re: Groovy kernel (5.8.0-1004-aws) creates broken /dev/console on i3.metal instances

2020-09-24 Thread Andrea Righi
** Description changed: + [Impact] + + Starting with kernel 5.8 the default nr_uarts has been changed from 4 to + 2 for amd64, but this seems to affect i3.metal instances in AWS, because + ttyS0 is now remapped to ttyS4 and this is breaking tools like cloud- + init (and probably something else).

[Kernel-packages] [Bug 1896604] Re: Groovy kernel (5.8.0-1004-aws) creates broken /dev/console on i3.metal instances

2020-09-24 Thread Andrea Righi
The reason of this problem is that in 5.8 the default amount of nr_uarts has been changed from 4 to 32. This is causing ttyS0 to be remapped to ttyS4, breaking the user-space. The solution is to set back the number of UARTS to 4. I tried to boot the kernel adding 8250.nr_uarts=4 to the kernel

[Kernel-packages] [Bug 1896604] Re: Groovy kernel (5.8.0-1004-aws) creates broken /dev/console on i3.metal instances

2020-09-22 Thread Andrea Righi
Adding some details about this issue. It looks like the real problem is the serial driver, in fact with a 5.4 kernel we can see the following in dmesg: [4.991325] :16:00.0: ttyS0 at MMIO 0xc5a0 (irq = 85, base_baud = 115200) is a 16550A With the 5.8 kernel we don't see any message at

[Kernel-packages] [Bug 1896604] Re: Groovy kernel (5.8.0-1004-aws) creates broken /dev/console on i3.metal instances

2020-09-22 Thread Andrea Righi
** Changed in: linux-aws (Ubuntu) Assignee: (unassigned) => Andrea Righi (arighi) -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-aws in Ubuntu. https://bugs.launchpad.net/bugs/1896604 Title: Groovy kernel (5.8.0-1004-

[Kernel-packages] [Bug 1896616] [NEW] set correct device size of loopback devices

2020-09-22 Thread Andrea Righi
Public bug reported: [Impact] SRU test ubuntu_ltp_syscalls is reporting the following message: 11:52:03 DEBUG| [stdout] ioctl_loop07.c:62: FAIL: /sys/block/loop4/size != 1024 got 2048 11:52:03 DEBUG| [stdout] ioctl_loop07.c:63: PASS: /sys/block/loop4/loop/sizelimit = 524288 11:52:03 DEBUG|

[Kernel-packages] [Bug 1881747] Re: cephadm does not work with zfs root

2020-09-09 Thread Andrea Righi
BTW, how did you install ceph-ansible? I can't find a 20.04 package in the ansible ppa. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to zfs-linux in Ubuntu. https://bugs.launchpad.net/bugs/1881747 Title: cephadm does not work with zfs

[Kernel-packages] [Bug 1881747] Re: cephadm does not work with zfs root

2020-09-09 Thread Andrea Righi
I was pretty much following this simple tutorial: http://prashplus.blogspot.com/2018/01/ceph-single-node-setup-ubuntu.html I'll try to add docker and ceph-ansible to the equation and see if I can reproduce it. ** Changed in: zfs-linux (Ubuntu) Status: New => In Progress -- You received

[Kernel-packages] [Bug 1881747] Re: cephadm does not work with zfs root

2020-09-08 Thread Andrea Righi
I've tried to reproduce the problem on a VM (that uses ZFS as rootfs) setting up a single-node ceph cluster, but OSD is coming up correctly: $ sudo ceph -s | grep osd osd: 1 osds: 1 up (since 50m), 1 in (since 59m) Could you provide more details about your particular ceph configuration /

[Kernel-packages] [Bug 1881747] Re: cephadm does not work with zfs root

2020-09-08 Thread Andrea Righi
** Changed in: zfs-linux (Ubuntu) Assignee: (unassigned) => Andrea Righi (arighi) -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to zfs-linux in Ubuntu. https://bugs.launchpad.net/bugs/1881747 Title: cephadm does not work with

[Kernel-packages] [Bug 1843340] Re: Boot menu not displayed for multi boot with ZFS

2020-09-08 Thread Andrea Righi
Isn't this the expected behavior? In order to show the boot menu in grub we need to set GRUB_TIMEOUT_STYLE / GRUB_TIMEOUT in /etc/default/grub and run update-grub. Am I missing something? -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to

[Kernel-packages] [Bug 1786011] Re: zfs-import-cache.service fails when using ZFS as root partition

2020-09-08 Thread Andrea Righi
If I'm not wrong ZFS on root support has been introduced officially from 19.10 (eoan). I'm not sure if this one is still relevant, but with 20.04 I can't reproduce any errors/issues using ZFS as root and zfs-import- cache.service is working just fine. If you are still experiencing this problem,

[Kernel-packages] [Bug 1888796] Re: package zfs-initramfs 0.8.3-1ubuntu12.2 failed to install/upgrade: problemi con le dipendenze - lasciato non configurato

2020-09-07 Thread Andrea Righi
*** This bug is a duplicate of bug 1841377 *** https://bugs.launchpad.net/bugs/1841377 Possibly also a duplicate of 1841377. ** This bug has been marked a duplicate of bug 1841377 package zfsutils-linux 0.8.1-1ubuntu9 failed to install/upgrade: installed zfsutils-linux package

[Kernel-packages] [Bug 1791143] Re: Suggestion to make zfsutils-linux a snap

2020-09-07 Thread Andrea Righi
** Changed in: zfs-linux (Ubuntu) Status: New => Confirmed ** Changed in: zfs-linux (Ubuntu) Importance: Undecided => Wishlist -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to zfs-linux in Ubuntu.

[Kernel-packages] [Bug 1887206] Re: package zfsutils-linux 0.8.3-1ubuntu12.1 failed to install/upgrade: installed zfsutils-linux package post-installation script subprocess returned error exit status

2020-09-07 Thread Andrea Righi
*** This bug is a duplicate of bug 1841377 *** https://bugs.launchpad.net/bugs/1841377 ** This bug has been marked a duplicate of bug 1841377 package zfsutils-linux 0.8.1-1ubuntu9 failed to install/upgrade: installed zfsutils-linux package post-installation script subprocess returned

[Kernel-packages] [Bug 1708049] Re: package zfsutils-linux 0.6.5.6-0ubuntu17 failed to install/upgrade: package is in a very bad inconsistent state; you should reinstall it before attempting configur

2020-09-07 Thread Andrea Righi
*** This bug is a duplicate of bug 1841377 *** https://bugs.launchpad.net/bugs/1841377 ** This bug has been marked a duplicate of bug 1841377 package zfsutils-linux 0.8.1-1ubuntu9 failed to install/upgrade: installed zfsutils-linux package post-installation script subprocess returned

[Kernel-packages] [Bug 1841377] Re: package zfsutils-linux 0.8.1-1ubuntu9 failed to install/upgrade: installed zfsutils-linux package post-installation script subprocess returned error exit status 1

2020-09-07 Thread Andrea Righi
Setting the status as "won't fix" for now, because I can't reproduce the problem. If it happens again, please re-open the bug. Thanks. ** Changed in: zfs-linux (Ubuntu) Status: Confirmed => Won't Fix -- You received this bug notification because you are a member of Kernel Packages, which

[Kernel-packages] [Bug 1841377] Re: package zfsutils-linux 0.8.1-1ubuntu9 failed to install/upgrade: installed zfsutils-linux package post-installation script subprocess returned error exit status 1

2020-09-07 Thread Andrea Righi
It looks like this issue has been happening multiple times. Apparently it doesn't happen if we try to update a clean install. And the common denominator seems to be that lxd is installed and some containers are running. So, I've tried the following: - setup a bionic VM with an encrypted storage:

[Kernel-packages] [Bug 1848653] Re: package zfsutils-linux 0.8.1-1ubuntu14 failed to install/upgrade: installed zfsutils-linux package post-installation script subprocess returned error exit status 1

2020-09-07 Thread Andrea Righi
*** This bug is a duplicate of bug 1841377 *** https://bugs.launchpad.net/bugs/1841377 ** This bug has been marked a duplicate of bug 1841377 package zfsutils-linux 0.8.1-1ubuntu9 failed to install/upgrade: installed zfsutils-linux package post-installation script subprocess returned

[Kernel-packages] [Bug 1891867] Re: zfs not correctly imported at boot

2020-09-07 Thread Andrea Righi
I'm trying to reproduce the problem, but the zpool is always imported correctly for me also at boot. How does your /etc/crypttab look like? And zpool list -v? Thanks. ** Changed in: zfs-linux (Ubuntu) Assignee: (unassigned) => Andrea Righi (arighi) -- You received this bug notificat

[Kernel-packages] [Bug 1887727] Re: Permission denied opening file in a directory with a sticky bit

2020-09-02 Thread Andrea Righi
** Changed in: zfs-linux (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to zfs-linux in Ubuntu. https://bugs.launchpad.net/bugs/1887727 Title: Permission denied opening file in a directory with a

[Kernel-packages] [Bug 1887727] Re: Permission denied opening file in a directory with a sticky bit

2020-09-02 Thread Andrea Righi
This new behavior is enforced by /proc/sys/fs/protected_regular, a new sysctl introduced by commit 30aba6656f61ed44cba445a3c0d38b296fa9e8f5 ("namei: allow restricted O_CREAT of FIFOs and regular files"). The default behavior is to make data spoofing attacks harder, disallowing the open of files

[Kernel-packages] [Bug 1887727] Re: Permission denied opening file in a directory with a sticky bit

2020-09-02 Thread Andrea Righi
It doesn't seem to be a specific zfs issue, I can reproduce this behavior on any filesystem apparently. It might be caused by a change in the VFS layer, I'll keep investigating. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to zfs-linux in

[Kernel-packages] [Bug 1887727] Re: Permission denied opening file in a directory with a sticky bit

2020-09-02 Thread Andrea Righi
** Changed in: zfs-linux (Ubuntu) Assignee: (unassigned) => Andrea Righi (arighi) -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to zfs-linux in Ubuntu. https://bugs.launchpad.net/bugs/1887727 Title: Permission denied opening f

[Kernel-packages] [Bug 1892728] [NEW] ec2-hibinit-agent needs to properly initialize swap file

2020-08-24 Thread Andrea Righi
Public bug reported: With commit 30460e1ea3e6 ("fs: Enable bmap() function to properly return errors"), applied to v5.6-rc1, running swapon on a file that has holes returns an error (EINVAL); hibinit-agent is creating the swap file just using fallocate(), without touching the whole file by

[Kernel-packages] [Bug 1888510] [NEW] xen-netfront: potential deadlock in xennet_remove()

2020-07-22 Thread Andrea Righi
Public bug reported: [Impact] During our AWS testing we were experiencing deadlocks on hibernate across all Xen instance types. The trace was showing that the system was stuck in xennet_remove(): [ 358.109087] Freezing of tasks failed after 20.006 seconds (1 tasks refusing to freeze,

[Kernel-packages] [Bug 1879711] Re: aws: disable CONFIG_DMA_CMA

2020-06-03 Thread Andrea Righi
** Changed in: linux-aws (Ubuntu Eoan) Assignee: (unassigned) => Andrea Righi (arighi) -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-aws in Ubuntu. https://bugs.launchpad.net/bugs/1879711 Title: aws: disable CONFIG_DMA_

[Kernel-packages] [Bug 1881869] Re: linux-aws: Xen / hibernation: xen-netfront panic + resume hangs

2020-06-03 Thread Andrea Righi
** Changed in: linux-aws (Ubuntu Eoan) Status: New => Confirmed ** Changed in: linux-aws (Ubuntu Focal) Status: New => Confirmed ** Changed in: linux-aws (Ubuntu) Status: New => Confirmed -- You received this bug notification because you are a member of Kernel Packages,

[Kernel-packages] [Bug 1881869] Re: linux-aws: Xen / hibernation: xen-netfront panic + resume hangs

2020-06-03 Thread Andrea Righi
** Summary changed: - linux-aws: fix Xen / hibernation issues + linux-aws: Xen / hibernation: xen-netfront panic + resume hangs -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-aws in Ubuntu. https://bugs.launchpad.net/bugs/1881869

[Kernel-packages] [Bug 1881869] [NEW] linux-aws: fix Xen / hibernation issues

2020-06-03 Thread Andrea Righi
in Xen. ** Affects: linux-aws (Ubuntu) Importance: High Assignee: Andrea Righi (arighi) Status: New ** Affects: linux-aws (Ubuntu Eoan) Importance: High Assignee: Andrea Righi (arighi) Status: New ** Affects: linux-aws (Ubuntu Focal) Importance: High

[Kernel-packages] [Bug 1880660] Re: security: lockdown: remove trailing semicolon before function body

2020-05-29 Thread Andrea Righi
** Also affects: linux (Ubuntu Groovy) Importance: Medium Assignee: Andrea Righi (arighi) Status: 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/1880660 Title

[Kernel-packages] [Bug 1880660] [NEW] security: lockdown: remove trailing semicolon before function body

2020-05-26 Thread Andrea Righi
ee: Andrea Righi (arighi) Status: Confirmed ** Affects: linux (Ubuntu Focal) Importance: Medium Assignee: Andrea Righi (arighi) Status: Confirmed ** Package changed: linux-oem-5.6 (Ubuntu) => linux (Ubuntu) ** Changed in: linux (Ubuntu) Assignee: (unassigned) =&

[Kernel-packages] [Bug 1879711] Re: aws: disable CONFIG_DMA_CMA

2020-05-20 Thread Andrea Righi
** Description changed: [Impact] The option CONFIG_DMA_CMA seems to cause resume problems on the t2.* instance types (Xen). - With this option enabled device drivers are allowed to use the Contiguous Memory Allocator (CMA) for DMA operations. So, drivers can allocate large

[Kernel-packages] [Bug 1879711] [NEW] aws: disable CONFIG_DMA_CMA

2020-05-20 Thread Andrea Righi
-aws (Ubuntu) Importance: Undecided Status: New ** Affects: linux-aws (Ubuntu Focal) Importance: High Assignee: Andrea Righi (arighi) Status: New ** Also affects: linux (Ubuntu Focal) Importance: Undecided Status: New ** Package changed: linux (Ubuntu

[Kernel-packages] [Bug 1872001] Re: 5.3.0-46-generic - i915 - frequent GPU hangs / resets rcs0

2020-05-06 Thread Andrea Righi
@pcworld @rhardy @benjamin-gemmill thank you very much for the feedback! We will keep investigating about this bug. -- 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/1872001 Title:

[Kernel-packages] [Bug 1872001] Re: 5.3.0-46-generic - i915 - frequent GPU hangs / resets rcs0

2020-05-05 Thread Andrea Righi
According to comment #106 it looks like the bug is still happening also in 5.3.0-52-generic, so maybe we have just reduced the probability to hit the bug. Let's try a different approach. Assuming that the bug wasn't happening in -45 and it started to happen in -46, the bug is likely to be

[Kernel-packages] [Bug 1872001] Re: 5.3.0-46-generic - i915 - frequent GPU hangs / resets rcs0

2020-04-23 Thread Andrea Righi
@hbogert I've uploaded all the required deb's, it should be easier to install the test kernel now: https://kernel.ubuntu.com/~arighi/LP-1861395/5.3/ Thanks! -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu.

[Kernel-packages] [Bug 1861395] Re: system hang: i915 Resetting rcs0 for hang on rcs0

2020-04-23 Thread Andrea Righi
** No longer affects: linux (Ubuntu Eoan) -- 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/1861395 Title: system hang: i915 Resetting rcs0 for hang on rcs0 Status in Linux: Fix

[Kernel-packages] [Bug 1872001] Re: 5.3.0-46-generic - i915 - frequent GPU hangs / resets rcs0

2020-04-23 Thread Andrea Righi
@sanette-linux thanks for testing! Can you provide some details about the demo that seems to be slower? Do you notice the same slowness also with a simple glxgears for example? -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in

[Kernel-packages] [Bug 1861395] Re: system hang: i915 Resetting rcs0 for hang on rcs0

2020-04-23 Thread Andrea Righi
** Changed in: linux (Ubuntu Eoan) Status: Invalid => Confirmed ** Changed in: linux (Ubuntu Eoan) Importance: Undecided => Critical -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu.

[Kernel-packages] [Bug 1872001] Re: 5.3.0-46-generic - i915 - frequent GPU hangs / resets rcs0

2020-04-23 Thread Andrea Righi
** Also affects: linux (Ubuntu Eoan) Importance: Undecided Status: New ** Changed in: linux (Ubuntu Eoan) Status: New => Confirmed ** Changed in: linux (Ubuntu Eoan) Importance: Undecided => Critical -- You received this bug notification because you are a member of Kernel

[Kernel-packages] [Bug 1872001] Re: 5.3.0-46-generic - i915 - frequent GPU hangs / resets rcs0

2020-04-22 Thread Andrea Righi
This looks similar to LP: #1861395 I've prepared a test kernel (5.3.0-48.41+lp1861395v1), backporting the following fixes that seems to have fixed the problem in 5.4: b1339ecac661 drm/i915/execlists: Always force a context reload when rewinding RING_TAIL f26a9e959a7b drm/i915/gt: Detect if we

[Kernel-packages] [Bug 1873315] Re: 5.4.0-24.28 does not seem to apply rtprio, whereas -21 does.

2020-04-21 Thread Andrea Righi
** Changed in: linux (Ubuntu) Status: Confirmed => Fix Committed -- 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/1873315 Title: 5.4.0-24.28 does not seem to apply rtprio, whereas

[Kernel-packages] [Bug 1872535] Re: Kernel panic in 5.4.0-21-generic when try to launch on system with 256 MB RAM

2020-04-20 Thread Andrea Righi
I've just tried to provision a new VM (via uvtools) using the latest focal kernel (5.4.0-25-generic) and it seems to boot fine with 256MB of memory. However, I haven't tried to do the release upgrade from 19.10 (I'll test this later). If you have a way to boot into the previous kernel you can try

[Kernel-packages] [Bug 1861359] Re: swap storms kills interactive use

2020-04-17 Thread Andrea Righi
** Description changed: [Impact] - High watermark boosting can cause large swap activity under certain - memory intensive workloads, making the system very unresponsive (screen - does not refresh, keyboard not responding, etc.). - - This large swap activity seems to be prevented disabling

[Kernel-packages] [Bug 1871917] Re: Unable to boot 20.04 installer on Dell XPS 15 9560

2020-04-17 Thread Andrea Righi
The error "access beyond end of device" could mean that the USB boot device wasn't created properly or the live system isn't detecting the size of the USB device properly. Have you tried to put another ISO on the same USB stick? Does this problem happen only with the focal ISO? Have you tried to

[Kernel-packages] [Bug 1865145] Re: Ubuntu Bionic freezes on Supermicro hardware when console redirection is configured in kernel parameters

2020-04-17 Thread Andrea Righi
@phausman thanks for the update! To be more specific, it would be interesting to take a look at dmesg while the problem is happening (I would expect to see a kernel oops: hung task timeout). It would be also interesting to take a look at the parent of these zombie tasks and try to figure out if

[Kernel-packages] [Bug 1865145] Re: Ubuntu Bionic freezes on Supermicro hardware when console redirection is configured in kernel parameters

2020-04-17 Thread Andrea Righi
@phausman sorry for the late response, is this bug still happening? Unfortunately I don't see any error or potential problem in the attached kernel.log or syslog. I guess the only way to debug this issue is to reproduce the problem and run some commands via ssh... -- You received this bug

[Kernel-packages] [Bug 1861359] Re: swap storms kills interactive use

2020-04-17 Thread Andrea Righi
Seth, thanks for the update! JFYI, I've just upladed also a v3 kernel (5.4.0-24.28+lp1861359v3) that I'm currently testing on my laptop with positive result. This change is even smaller than the previous one (v2), because we simply disable the direct swap out in the i915 shrinker

[Kernel-packages] [Bug 1861359] Re: swap storms kills interactive use

2020-04-16 Thread Andrea Righi
I've uploaded another test kernel (5.4.0-24.28+lp1861359v2): https://kernel.ubuntu.com/~arighi/LP-1861359/ In this one, instead of completely disabling the i915 shrinker, I'm only preventing to swap out the i915 caches when the system is short on memory. I'm testing this new one on my laptop

[Kernel-packages] [Bug 1861359] Re: swap storms kills interactive use

2020-04-15 Thread Andrea Righi
Hi Seth, sorry for my late response. I did more tests this morning on my laptop tracing the callers of __alloc_pages_nodemask() and I noticed that pretty much all the time it is called by the i915 shrinker. So I tried to disable it and I have to say that on my laptop (at least) the system is

[Kernel-packages] [Bug 1864754] Re: Kernel Oops - general protection fault: 0000 [#1] SMP PTI after disconnecting thunderbolt docking station

2020-04-14 Thread Andrea Righi
u Eoan) ** No longer affects: linux-signed-hwe (Ubuntu Focal) ** Changed in: linux (Ubuntu Eoan) Importance: Undecided => Medium ** Changed in: linux (Ubuntu Focal) Importance: Undecided => Medium ** Changed in: linux (Ubuntu Eoan) Assignee: (unassigned) => Andrea Righi (arig

[Kernel-packages] [Bug 1872047] [NEW] kselftest: seccomp kill_after_ptrace() timeout

2020-04-10 Thread Andrea Righi
affecting the selftests, not the kernel, so regression potential is minimal. ** Affects: linux (Ubuntu) Importance: Medium Assignee: Andrea Righi (arighi) Status: New ** Affects: linux (Ubuntu Eoan) Importance: Medium Assignee: Andrea Righi (arighi) Status: New

[Kernel-packages] [Bug 1861359] Re: swap storms kills interactive use

2020-04-07 Thread Andrea Righi
TL;DR @seth-arnold, as a test can you try to set the following options? $ echo $((32 * 1024 * 1024)) | sudo tee /proc/sys/vm/dirty_bytes $ echo $((32 * 1024 * 1024)) | sudo tee /proc/sys/vm/dirty_background_bytes Repeat the test and see if the system is still unresponsive. Details below.

[Kernel-packages] [Bug 1866852] Re: System Display black screen on reboot or after a clean shutdown with USB-C Dock Monitor

2020-04-06 Thread Andrea Righi
@mclemenceau do you have another pc / device that you can use to ssh into your laptop when the screen is black? If you can do that it'd be nice to see how a dmesg looks like when the screen is all black. Thanks! -- You received this bug notification because you are a member of Kernel Packages,

[Kernel-packages] [Bug 1861359] Re: swap storms kills interactive use

2020-03-27 Thread Andrea Righi
** Description changed: + [Impact] + + High watermark boosting can cause large swap activity under certain + memory intensive workloads, making the system very unresponsive (screen + does not refresh, keyboard not responding, etc.). + + This large swap activity seems to be prevented disabling

[Kernel-packages] [Bug 1861053] Re: no fatrace output in focal

2020-03-16 Thread Andrea Righi
Hi Seth, is this still happening with the latest focal kernel? I'm trying to reproduce the problem, but I can't: $ cat /proc/version_signature Ubuntu 5.4.0-18.22-generic 5.4.24 righiandr@xps-13:~$ apt policy fatrace fatrace: Installed: 0.13-2 Candidate: 0.13-2 Version table: *** 0.13-2

[Kernel-packages] [Bug 1858618] Re: linux-aws: swapoff optimization

2020-03-11 Thread Andrea Righi
** Also affects: linux-aws (Ubuntu Focal) Importance: Undecided Assignee: Andrea Righi (arighi) Status: New ** Also affects: linux-aws-5.0 (Ubuntu Focal) Importance: Undecided Status: Invalid ** Also affects: linux-aws (Ubuntu Eoan) Importance: Undecided Status

[Kernel-packages] [Bug 1831940] Re: hibernation support for linux-aws

2020-03-11 Thread Andrea Righi
Status: New ** Also affects: linux-aws-5.0 (Ubuntu Eoan) Importance: Undecided Status: New ** Changed in: linux-aws (Ubuntu Eoan) Assignee: (unassigned) => Andrea Righi (arighi) ** Changed in: linux-aws (Ubuntu Focal) Assignee: Kamal Mostafa (kamalmostafa) =>

[Kernel-packages] [Bug 1866484] Re: focal/linux-azure: 5.4.0-1006.6 -proposed tracker

2020-03-09 Thread Andrea Righi
eam (canonical-kernel-team) => Andrea Righi (arighi) ** Changed in: kernel-sru-workflow/prepare-package-meta Status: New => In Progress ** Changed in: kernel-sru-workflow/prepare-package-meta Assignee: Canonical Kernel Team (canonical-kernel-team) => Andrea Righi (arighi)

[Kernel-packages] [Bug 1865170] Re: lid close simply turns off laptop screen

2020-03-05 Thread Andrea Righi
Hi Colton, thanks for testing it! It looks like the kernel correctly receives and delivers the ACPI events, but then it fails to perform the actual suspend to mem. Can you try one more test? echo 1 > /sys/power/pm_debug_messages echo 0 > /sys/power/pm_async echo mem > /sys/power/state The

[Kernel-packages] [Bug 1865170] Re: lid close simply turns off laptop screen

2020-03-04 Thread Andrea Righi
Thanks for reporting this. The CurrentDmesg.txt that you posted doesn't seem to include the part when you close the lid, am I correct? In that case could you run `dmesg -w` on a console session, close the lid and post what you get in dmesg? Another interesting test could be to check if the ACPI

[Kernel-packages] [Bug 1861395] Re: system hang: i915 Resetting rcs0 for hang on rcs0

2020-03-04 Thread Andrea Righi
@oded-geek sorry, there was an off by one bug in my custom kernel (I've removed it just to make sure nobody is doing other tests with it), could you try the latest kernel from the unstable ppa (5.4.0-17.21)? https://launchpad.net/~canonical-kernel- team/+archive/ubuntu/unstable/+packages Thanks!

[Kernel-packages] [Bug 1865359] Re: sysfs: incorrect network device permissions on network namespace change

2020-03-04 Thread Andrea Righi
@cbrauner just to make sure, you are talking about this patchset correct? https://lore.kernel.org/linux- pm/20200217165854.4ywtbxbaenha3iti@wittgenstein/T/ ** Also affects: linux (Ubuntu Focal) Importance: Undecided Status: Confirmed -- You received this bug notification because you

[Kernel-packages] [Bug 1865332] Re: CONFIG_IP_MROUTE_MULTIPLE_TABLES is not set

2020-03-04 Thread Andrea Righi
Patch posted to the kernel-team list. Thanks for reporting it! https://lists.ubuntu.com/archives/kernel-team/2020-March/108017.html -- 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/1865332

[Kernel-packages] [Bug 1865332] Re: CONFIG_IP_MROUTE_MULTIPLE_TABLES is not set

2020-03-04 Thread Andrea Righi
** Also affects: linux (Ubuntu Focal) Importance: Undecided Status: Incomplete ** Changed in: linux (Ubuntu Focal) Assignee: (unassigned) => Andrea Righi (arighi) -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to li

[Kernel-packages] [Bug 1861359] Re: swap storms kills interactive use

2020-03-04 Thread Andrea Righi
@seth-arnold ok I'll do this tests also on my side and see if I can reproduce the problem. If you find a specific web page that can trigger the problem easily let me know. Thanks! -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in

[Kernel-packages] [Bug 1864045] Re: [SRU] Hibernation events sometimes missed on repeated attempts

2020-03-04 Thread Andrea Righi
@rbalint unfortunately bisecting the kernel is not a trivial task... there are many changes between the stock 4.15 and the 5.0 kernels and the process is probably going to take a long time. I'll check if it's possible to identify only a subset of potential commits that might have caused this

[Kernel-packages] [Bug 1864045] Re: [SRU] Hibernation events sometimes missed on repeated attempts

2020-03-03 Thread Andrea Righi
@rbalint if you can reproduce the problem easily, it would be interesting to monitor the received ACPI events via acpi_listen. What I see during my tests is that acpi_listen is always showing the sleep events, meaning that the kernel receives them correctly at least, and then the failure happens

[Kernel-packages] [Bug 1861359] Re: swap storms kills interactive use

2020-03-02 Thread Andrea Righi
The depmod error messages have been fixed in initramfs-tools (see https://bugs.launchpad.net/bugs/1863261). It doesn't actually prevent the kernel from booting, so you can safely reboot. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to

[Kernel-packages] [Bug 1865129] Re: /dev/rtc missing despite having configs for RTC in kernel

2020-03-02 Thread Andrea Righi
Looking at the kernel version (4.15.18+) it seems like you are running a custom kernel. Does this problem happen also with the stock Ubuntu kernel? Thanks. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu.

[Kernel-packages] [Bug 1865145] Re: Ubuntu Bionic freezes on Supermicro hardware when console redirection is configured in kernel parameters

2020-03-02 Thread Andrea Righi
If you can still ssh to the system when the problem happens, can you run dmesg and post the output here? Thanks! -- 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/1865145 Title: Ubuntu

[Kernel-packages] [Bug 1865100] Re: screen freeze during surfing

2020-03-02 Thread Andrea Righi
Hi Levi, thanks for reporting this. Can you reproduce this problem easily (how often does it happen)? Did it start to happen after a specific kernel update? -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu.

[Kernel-packages] [Bug 1864992] Re: depmod: ERROR: ../libkmod/libkmod.c:515 lookup_builtin_file() could not open builtin file '/lib/modules/5.4.0-14-generic/modules.builtin.bin'

2020-03-02 Thread Andrea Righi
*** This bug is a duplicate of bug 1863261 *** https://bugs.launchpad.net/bugs/1863261 ** This bug has been marked a duplicate of bug 1863261 modinfo prints an error message if modules.builtin.bin is missing -- You received this bug notification because you are a member of Kernel

[Kernel-packages] [Bug 1865010] Re: Graphics garbled

2020-03-02 Thread Andrea Righi
Hi Chris, thanks for reporting this. Did you start to notice this problem after a kernel update or just when you started using the Eclipse IDE? I'm wondering if this was a regression introduced by a specific kernel update... -- You received this bug notification because you are a member of

[Kernel-packages] [Bug 1861359] Re: swap storms kills interactive use

2020-02-29 Thread Andrea Righi
Seth, can you try to see if you can reproduce the problem with the latest unstable kernel (5.4.0-17.21)? https://launchpad.net/~canonical- kernel-team/+archive/ubuntu/unstable I can't reproduce the problem with it. I have not verified yet, but I suspect it might be related to this commit:

[Kernel-packages] [Bug 1861359] Re: swap storms kills interactive use

2020-02-29 Thread Andrea Righi
Many thanks for the reproducer Seth! I've been able to reproduce the swapping issue on my laptop! Now I can investigate more on my side. I'll keep you posted! -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu.

[Kernel-packages] [Bug 1861395] Re: system hang: i915 Resetting rcs0 for hang on rcs0

2020-02-29 Thread Andrea Righi
There was an off by one error in the patch backported to 5.4.0-16.19 (same with my the test kernel). For those who wants to test it, please try the latest kernel from the unstable ppa (5.4.0-17.21): https://launchpad.net/~canonical-kernel-team/+archive/ubuntu/unstable/+packages -- You received

[Kernel-packages] [Bug 1865025] Re: focal/linux: 5.4.0-17.20 -proposed tracker

2020-02-27 Thread Andrea Righi
eam) => Andrea Righi (arighi) ** Changed in: kernel-sru-workflow/prepare-package-meta Status: New => In Progress ** Changed in: kernel-sru-workflow/prepare-package-meta Assignee: Canonical Kernel Team (canonical-kernel-team) => Andrea Righi (arighi) ** Changed in: kernel-

[Kernel-packages] [Bug 1864633] Re: suspend/resume failure, fan making noise and nvidia-sim not working

2020-02-27 Thread Andrea Righi
Hello, can you provide more details about your hardware? Is this a laptop? What model? Can you easily reproduce the bug? Did you notice if the problem started to happen with a specific kernel (e.g., after a kernel update)? Thanks! -- You received this bug notification because you are a member

[Kernel-packages] [Bug 1861395] Re: system hang: i915 Resetting rcs0 for hang on rcs0

2020-02-26 Thread Andrea Righi
I've uploaded a test kernel here: https://kernel.ubuntu.com/~arighi/LP-1853044/ It's basically 5.4.0-15-generic with the following upstream patches on top: 8ee36e048c98 drm/i915/execlists: Minimalistic timeslicing b1339ecac661 drm/i915/execlists: Always force a context reload when rewinding

[Kernel-packages] [Bug 1861359] Re: swap storms kills interactive use

2020-02-20 Thread Andrea Righi
I guess we can't use ftrace and secure boot at the same time then... would it be possible to disable secure boot / kernel lockdown on your side and run a test using that kprobe-perf command? If it's not possible or too complicated we'll find an alternative way, maybe I can create a custom kernel

[Kernel-packages] [Bug 1860182] Re: zpool scrub malfunction after kernel upgrade

2020-02-20 Thread Andrea Righi
I'm trying to reproduce this issue, but scrub always completes in a reasonable amount of time in my case and `zpool status` seems to report the correct statistics. I've tried with different pool sizes (all smaller than 256GB). Are you using any special configuration for the zpool? I was wondering

[Kernel-packages] [Bug 1858495] Re: multiple long delays during kernel and userspace boot

2020-02-18 Thread Andrea Righi
Hi Ryan, these boot delays are happening with a particular instance type or a particular configuration? Is this slowness consistent across reboots (rebooting the same instance multiple times)? I'm doing some tests (profiling kernel initcalls and user-space boot time via systemd-analize) using an

[Kernel-packages] [Bug 1861359] Re: swap storms kills interactive use

2020-02-17 Thread Andrea Righi
Ah! You're right, that's the reason! When the kernel is locked down ftrace is explicitly disabled. To confirm that, you should have 0 in /proc/sys/kernel/ftrace_enabled. Can you try to set it back to 1 and see if kprobe-perf works after that? Otherwise I'll figure out an alternative way to trace

[Kernel-packages] [Bug 1853044] Re: 5.3.0-23-generic causes fans to spin when idle

2020-02-15 Thread Andrea Righi
I also built a 5.4 based test kernel (with the extra drm/i915 patches from https://cgit.freedesktop.org/~ickle/linux-2.6/log/?h=bug112315): https://kernel.ubuntu.com/~arighi/LP-1853044/ -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to

[Kernel-packages] [Bug 1861359] Re: swap storms kills interactive use

2020-02-12 Thread Andrea Righi
Weird that kprobe-perf isn't working... I've just tried it on a fresh new installed 20.04 instance and: ubuntu@ubuntu:~$ uname -a Linux ubuntu 5.4.0-12-generic #15-Ubuntu SMP Tue Jan 21 15:12:29 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux ubuntu@ubuntu:~$ sudo ls -l

[Kernel-packages] [Bug 1831940] Re: hibernation support for linux-aws

2020-02-10 Thread Andrea Righi
** Description changed: Additional AWS-specific and mainline patches are required to support hibernation across the various types of AWS instances. The following patch sets for linux-aws-xenial and linux-aws-bionic provide the necessary functionality, and should only impact the

[Kernel-packages] [Bug 1861359] Re: swap storms kills interactive use

2020-02-10 Thread Andrea Righi
OK, so we know that it's not related to the memory cgroup subsystem. Another reason of such unexpected swapping activity could be due to memory compaction code that is triggering some direct memory reclaim and forcing to swap out pages. What do you have in /proc/sys/vm/swappiness? Could you try

[Kernel-packages] [Bug 1861359] Re: swap storms kills interactive use

2020-02-03 Thread Andrea Righi
Hello Seth, thanks for reporting the problem. I was wondering if this could be related to the memory cgroup controller. As a simple test could you try to reboot the system adding cgroup_disable=memory to the kernel boot parameters? In this way if the problem goes away at least we know it's

[Kernel-packages] [Bug 1861359] Re: swap storms kills interactive use

2020-02-03 Thread Andrea Righi
** Changed in: linux (Ubuntu) Assignee: Colin Ian King (colin-king) => Andrea Righi (arighi) -- 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/1861359 Title: swap storms ki

[Kernel-packages] [Bug 1858880] Re: focal/linux-5.4: 5.4.0-12.15 -proposed tracker

2020-01-21 Thread Andrea Righi
** Summary changed: - focal/linux-5.4: 5.4.0-11.14 -proposed tracker + focal/linux-5.4: 5.4.0-12.15 -proposed tracker -- 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/1858880 Title:

[Kernel-packages] [Bug 1860231] Re: 5.4.0-11 crash on cryptsetup open

2020-01-20 Thread Andrea Righi
After a first look at the kernel bug trace, it seems that q->make_request_fn(q, bio) (block/blk-core.c:1064) became NULL. The reason might be a race with a block device not yet properly initialized when some I/O requests were submitted (or a block device de- registered too early while some I/O

[Kernel-packages] [Bug 1860231] Re: 5.4.0-11 crash on cryptsetup open

2020-01-20 Thread Andrea Righi
** Changed in: linux (Ubuntu) Assignee: (unassigned) => Andrea Righi (arighi) -- 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/1860231 Title: 5.4.0-11 crash on cryptsetup o

[Kernel-packages] [Bug 1831940] Re: hibernation support for linux-aws

2020-01-16 Thread Andrea Righi
** Also affects: linux-aws (Ubuntu Disco) Importance: Undecided Status: New ** Changed in: linux-aws (Ubuntu Disco) Importance: Undecided => High ** Changed in: linux-aws (Ubuntu Disco) Assignee: (unassigned) => Andrea Righi (arighi) -- You received this bug notifi

[Kernel-packages] [Bug 1858618] Re: linux-aws: swapoff optimization

2020-01-16 Thread Andrea Righi
** Also affects: linux-aws (Ubuntu Disco) Importance: Undecided Status: New ** Changed in: linux-aws (Ubuntu Disco) Importance: Undecided => High ** Changed in: linux-aws (Ubuntu Disco) Assignee: (unassigned) => Andrea Righi (arighi) -- You received this bug notifi

[Kernel-packages] [Bug 1858618] [NEW] linux-aws: swapoff optimization

2020-01-07 Thread Andrea Righi
. ** Affects: linux-aws (Ubuntu) Importance: Undecided Assignee: Andrea Righi (arighi) Status: New ** Affects: linux-aws (Ubuntu Bionic) Importance: Undecided Assignee: Andrea Righi (arighi) Status: New ** Also affects: linux-aws (Ubuntu Bionic) Importance

[Kernel-packages] [Bug 1855448] [NEW] focal/linux: 5.4.0-8.9 -proposed tracker

2019-12-06 Thread Andrea Righi
-sru-workflow/prepare-package Importance: Medium Assignee: Andrea Righi (arighi) Status: In Progress ** Affects: kernel-sru-workflow/prepare-package-meta Importance: Medium Assignee: Andrea Righi (arighi) Status: In Progress ** Affects: kernel-sru-workflow

[Kernel-packages] [Bug 1852268] Re: bionic/linux-aws-fips: 4.15.0-2005.5 -proposed tracker

2019-11-19 Thread Andrea Righi
nel Team (canonical-kernel-team) => Andrea Righi (arighi) ** Changed in: kernel-sru-workflow/prepare-package-lrm Status: New => In Progress ** Changed in: kernel-sru-workflow/prepare-package-lrm Assignee: Canonical Kernel Team (canonical-kernel-team) => Andrea Righi (arighi)

[Kernel-packages] [Bug 1847118] Re: PM / hibernate: fix potential memory corruption

2019-11-04 Thread Andrea Righi
** Tags removed: verification-needed-bionic ** Tags added: verification-done-bionic ** Tags removed: verification-needed-disco ** Tags added: verification-done-disco ** Tags removed: verification-needed-eoan verification-needed-xenial ** Tags added: verification-done-eoan

[Kernel-packages] [Bug 1849058] Re: eoan/linux-azure: 5.3.0-1005.5 -proposed tracker

2019-10-24 Thread Andrea Righi
eam (canonical-kernel-team) => Andrea Righi (arighi) ** Changed in: kernel-sru-workflow/prepare-package-lrm Status: New => In Progress ** Changed in: kernel-sru-workflow/prepare-package-lrm Assignee: Canonical Kernel Team (canonical-kernel-team) => Andrea Righi (arighi) ** Change

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