[Bug 1572630] Re: boot-time kernel panic introduced in 4.4.0-18, not present in 4.4.0-15

** Changed in: linux-lts-xenial (Ubuntu Xenial) Assignee: Eric Desrochers (slashd) => (unassigned) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1572630 Title: boot-time kernel panic

[Bug 1572630] Re: boot-time kernel panic introduced in 4.4.0-18, not present in 4.4.0-15

This bug was fixed in the package linux-lts-xenial - 4.4.0-42.62~14.04.1 --- linux-lts-xenial (4.4.0-42.62~14.04.1) trusty; urgency=low * Fix GRO recursion overflow for tunneling protocols (LP: #1631287) - tunnels: Don't apply GRO to multiple layers of encapsulation. - gro:

[Bug 1572630] Re: boot-time kernel panic introduced in 4.4.0-18, not present in 4.4.0-15

This bug was fixed in the package linux-lts-xenial - 4.4.0-42.62~14.04.1 --- linux-lts-xenial (4.4.0-42.62~14.04.1) trusty; urgency=low * Fix GRO recursion overflow for tunneling protocols (LP: #1631287) - tunnels: Don't apply GRO to multiple layers of encapsulation. - gro:

[Bug 1572630] Re: boot-time kernel panic introduced in 4.4.0-18, not present in 4.4.0-15

This bug was fixed in the package linux - 4.4.0-42.62 --- linux (4.4.0-42.62) xenial; urgency=low * Fix GRO recursion overflow for tunneling protocols (LP: #1631287) - tunnels: Don't apply GRO to multiple layers of encapsulation. - gro: Allow tunnel stacking in the case of

[Bug 1572630] Re: boot-time kernel panic introduced in 4.4.0-18, not present in 4.4.0-15

This bug was fixed in the package linux - 4.4.0-42.62 --- linux (4.4.0-42.62) xenial; urgency=low * Fix GRO recursion overflow for tunneling protocols (LP: #1631287) - tunnels: Don't apply GRO to multiple layers of encapsulation. - gro: Allow tunnel stacking in the case of

[Bug 1572630] Re: boot-time kernel panic introduced in 4.4.0-18, not present in 4.4.0-15

** Tags removed: verification-needed-xenial ** Tags added: verification-done-xenial -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1572630 Title: boot-time kernel panic introduced in 4.4.0-18, not

[Bug 1572630] Re: boot-time kernel panic introduced in 4.4.0-18, not present in 4.4.0-15

ubuntu@10-10-238-247:~$ apt-cache policy linux-generic-lts-xenial linux-generic-lts-xenial: Installed: 4.4.0.41.30 Candidate: 4.4.0.41.30 Version table: *** 4.4.0.41.30 0 500 http://ubuntu.mirrors.ucloud.cn/ubuntu/ trusty-proposed/main amd64 Packages 100

[Bug 1572630] Re: boot-time kernel panic introduced in 4.4.0-18, not present in 4.4.0-15

** Changed in: linux-lts-xenial (Ubuntu Xenial) Assignee: (unassigned) => Eric Desrochers (slashd) ** Changed in: linux-lts-xenial (Ubuntu Xenial) Status: Invalid => In Progress ** Changed in: linux-lts-xenial (Ubuntu Xenial) Importance: Undecided => Medium -- You received this

[Bug 1572630] Re: boot-time kernel panic introduced in 4.4.0-18, not present in 4.4.0-15

proton, Dale Hamel and all. Please test this proposed kernel. Details can be found in comment #28. Eric -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1572630 Title: boot-time kernel panic

[Bug 1572630] Re: boot-time kernel panic introduced in 4.4.0-18, not present in 4.4.0-15

This bug is awaiting verification that the kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed- xenial' to 'verification-done-xenial'. If verification is not done by 5 working days from

[Bug 1572630] Re: boot-time kernel panic introduced in 4.4.0-18, not present in 4.4.0-15

** Changed in: linux (Ubuntu Xenial) Importance: Undecided => Medium ** Changed in: linux-lts-xenial (Ubuntu Trusty) Importance: Undecided => Medium -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu.

[Bug 1572630] Re: boot-time kernel panic introduced in 4.4.0-18, not present in 4.4.0-15

** Also affects: linux (Ubuntu) Importance: Undecided Status: New ** Also affects: linux (Ubuntu Xenial) Importance: Undecided Status: New ** Also affects: linux-lts-xenial (Ubuntu Xenial) Importance: Undecided Status: New ** Also affects: linux (Ubuntu Yakkety)

[Bug 1572630] Re: boot-time kernel panic introduced in 4.4.0-18, not present in 4.4.0-15

Patches applied in origin/master-next For more details: https://wiki.ubuntu.com/KernelTeam/Newsletter Eric -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1572630 Title: boot-time kernel panic

[Bug 1572630] Re: boot-time kernel panic introduced in 4.4.0-18, not present in 4.4.0-15

Update: kernel-team acks on the patches. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1572630 Title: boot-time kernel panic introduced in 4.4.0-18, not present in 4.4.0-15 To manage

[Bug 1572630] Re: boot-time kernel panic introduced in 4.4.0-18, not present in 4.4.0-15

Fix submitted to kernel-t...@lists.ubuntu.com -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1572630 Title: boot-time kernel panic introduced in 4.4.0-18, not present in 4.4.0-15 To manage

[Bug 1572630] Re: boot-time kernel panic introduced in 4.4.0-18, not present in 4.4.0-15

** Description changed: [Impact] At boot-time, the kernel will panic somewhere in 'blk_mq_register_disk', a snippet of the track is below, and full panic dump is attached. The panic dump was collected via serial console, as the kernel panics so early that we cannot kdump it. [

[Bug 1572630] Re: boot-time kernel panic introduced in 4.4.0-18, not present in 4.4.0-15

** Description changed: + [Impact] + + At boot-time, the kernel will panic somewhere in 'blk_mq_register_disk', + a snippet of the track is below, and full panic dump is attached. The + panic dump was collected via serial console, as the kernel panics so + early that we cannot kdump it. + + [

[Bug 1572630] Re: boot-time kernel panic introduced in 4.4.0-18, not present in 4.4.0-15

@proton, Sorry for the late reply, I was out of the office for a couple of weeks. Thanks for your feedbacks, I'll submit the patch to be backported into 4.4 kernel. Note that we will need your help for testing one more time if the patch is accepted into the -proposed archive. I'll keep you

[Bug 1572630] Re: boot-time kernel panic introduced in 4.4.0-18, not present in 4.4.0-15

@slashd Sorry for the delay. The kernel you provided works as expected, while on the same machine 4.4.0-31 fails. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1572630 Title: boot-time kernel

[Bug 1572630] Re: boot-time kernel panic introduced in 4.4.0-18, not present in 4.4.0-15

@proton, have you been able to give a try at my test kernel found on "ppa:slashd/lp1572630-proton" ? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1572630 Title: boot-time kernel panic introduced

[Bug 1572630] Re: boot-time kernel panic introduced in 4.4.0-18, not present in 4.4.0-15

@proton, Here's the Xenial v4.4 test kernel for Trusty release. Instructions: $ sudo add-apt-repository ppa:slashd/lp1572630-proton $ sudo apt-get update $ sudo apt-get install linux-image-4.4.0-34-generic linux-image-extra-4.4.0-34-generic linux-headers-4.4.0-34-generic -y Then reboot the

[Bug 1572630] Re: boot-time kernel panic introduced in 4.4.0-18, not present in 4.4.0-15

@slashd Yes, we are experiencing this on Trusty (with linux-generic-lts-xenial package). -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1572630 Title: boot-time kernel panic introduced in 4.4.0-18,

[Bug 1572630] Re: boot-time kernel panic introduced in 4.4.0-18, not present in 4.4.0-15

@Proton, The test kernel I made is for the Xenial release, not for Trusty. Do you experience the problem on Trusty ? Originally the problem was reported to my on 16.04 (Xenial) so this is why I made the test kernel for Xenial only. I'll work on another test kernel this week (if I have time

[Bug 1572630] Re: boot-time kernel panic introduced in 4.4.0-18, not present in 4.4.0-15

@slashd Didn't use wget, I am using the procedure you described. root@10-10-129-197:/home/ubuntu# add-apt-repository ppa:slashd/buglp1572630 === TEST KERNEL for LP: #1572630 === More info: https://launchpad.net/~slashd/+archive/ubuntu/buglp1572630 Press [ENTER] to continue or ctrl-c to cancel

[Bug 1572630] Re: boot-time kernel panic introduced in 4.4.0-18, not present in 4.4.0-15

@Proton, It won't work using "wget" or else. Here's the instruction on how to use a PPA: $ sudo add-apt-repository ppa:slashd/buglp1572630 $ sudo apt-get update $ sudo apt-get install linux-image-4.4.0-30-generic=4.4.0-30.49hf1572630v20160706b2 -y $ sudo apt-get install

[Bug 1572630] Re: boot-time kernel panic introduced in 4.4.0-18, not present in 4.4.0-15

@slashd W: Failed to fetch http://ppa.launchpad.net/slashd/buglp1572630/ubuntu/dists/trusty/main /binary-amd64/Packages 404 Not Found W: Failed to fetch http://ppa.launchpad.net/slashd/buglp1572630/ubuntu/dists/trusty/main/binary-i386/Packages 404 Not Found Can't install it. -- You

[Bug 1572630] Re: boot-time kernel panic introduced in 4.4.0-18, not present in 4.4.0-15

** Changed in: linux-lts-xenial (Ubuntu) Status: Confirmed => In Progress ** Changed in: linux-lts-xenial (Ubuntu) Importance: Critical => Medium -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu.

[Bug 1572630] Re: boot-time kernel panic introduced in 4.4.0-18, not present in 4.4.0-15

@Proton, Thanks for the feedback for v4.6-rc1. Dale, Proton, I built a test kernel [4.4.0-30.49hf1572630v20160706b2] based on Ubuntu Xenial kernel v4.4.0-30. It is including the fix introduced upstream in v4.6-rc1 that can be found on my PPA : $ sudo add-apt-repository

[Bug 1572630] Re: boot-time kernel panic introduced in 4.4.0-18, not present in 4.4.0-15

@slashd v4.6-rc1 works as expected. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1572630 Title: boot-time kernel panic introduced in 4.4.0-18, not present in 4.4.0-15 To manage notifications

[Bug 1572630] Re: boot-time kernel panic introduced in 4.4.0-18, not present in 4.4.0-15

** Changed in: linux-lts-xenial (Ubuntu) Assignee: (unassigned) => Eric Desrochers (slashd) ** Changed in: linux-lts-xenial (Ubuntu) Assignee: Eric Desrochers (slashd) => (unassigned) ** Changed in: linux-lts-xenial (Ubuntu) Assignee: (unassigned) => Eric Desrochers (slashd) --

[Bug 1572630] Re: boot-time kernel panic introduced in 4.4.0-18, not present in 4.4.0-15

To continue my comment #11 ... There is more commit to apply, since commit 897bb0c remove ‘int i;’[1] in function ‘blk_mq_sysfs_init’, it won't build in function ‘blk_mq_sysfs_init’, ‘queue_for_each_hw_ctx’ still load ‘i’ as an argument, but it is no longer declared after commit 897bb0c[1].

[Bug 1572630] Re: boot-time kernel panic introduced in 4.4.0-18, not present in 4.4.0-15

Hi Dale, Proton, Can you confirm if you can reproduce the problem or not using the mainline kernel v4.6-rc1 found in : http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.6-rc1-wily/ Eric -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to

[Bug 1572630] Re: boot-time kernel panic introduced in 4.4.0-18, not present in 4.4.0-15

At first glance, theses 2 commits are needed to fix the issue, 897bb0c7 is the fix but won't build if e0e827b9, since it removes the function "queue_for_each_ctx" that will no longer be defined in the header file after "897bb0c7". e0e827b9 blk-mq: Reuse hardware context cpumask for tags 897bb0c7

[Bug 1572630] Re: boot-time kernel panic introduced in 4.4.0-18, not present in 4.4.0-15

There is an upstream fix for this issue. First introduced upstream in branch : v4.6-rc1 --- commit 897bb0c7f1ea82d7cc882b19790b5e1df00ffc29 Author: Thomas Gleixner Date: Sat Mar 19 11:30:33 2016 +0100 blk-mq: Use proper cpumask iterator queue_for_each_ctx()

[Bug 1572630] Re: boot-time kernel panic introduced in 4.4.0-18, not present in 4.4.0-15

Same here, but on virtualized environment. ** Attachment added: "Screenshot" https://bugs.launchpad.net/ubuntu/+source/linux-lts-xenial/+bug/1572630/+attachment/4691400/+files/Snip20160628_3.png -- You received this bug notification because you are a member of Ubuntu Bugs, which is

[Bug 1572630] Re: boot-time kernel panic introduced in 4.4.0-18, not present in 4.4.0-15

lspci 00:00.0 Host bridge: Intel Corporation 440FX - 82441FX PMC [Natoma] (rev 02) Subsystem: Red Hat, Inc Qemu virtual machine Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B- ParErr-

[Bug 1572630] Re: boot-time kernel panic introduced in 4.4.0-18, not present in 4.4.0-15

falcon-graph description: Computer product: KVM () vendor: Red Hat version: RHEL 6.3.0 PC width: 64 bits capabilities: smbios-2.4 dmi-2.4 vsyscall32 configuration: boot=normal family=Red Hat Enterprise Linux uuid=E1EEF4B2-FA7A-41C7-A815-BF5D5437550D *-core

[Bug 1572630] Re: boot-time kernel panic introduced in 4.4.0-18, not present in 4.4.0-15

# dmidecode 2.12 SMBIOS 2.4 present. 15 structures occupying 479 bytes. Table at 0xDE20. Handle 0x, DMI type 0, 24 bytes BIOS Information Vendor: Seabios Version: 0.5.1 Release Date: 01/01/2007 Address: 0xE8000 Runtime Size: 96 kB ROM Size:

[Bug 1572630] Re: boot-time kernel panic introduced in 4.4.0-18, not present in 4.4.0-15

** Changed in: linux-lts-xenial (Ubuntu) Importance: Undecided => Critical -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1572630 Title: boot-time kernel panic introduced in 4.4.0-18, not present

[Bug 1572630] Re: boot-time kernel panic introduced in 4.4.0-18, not present in 4.4.0-15

Status changed to 'Confirmed' because the bug affects multiple users. ** Changed in: linux-lts-xenial (Ubuntu) Status: New => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1572630

[Bug 1572630] Re: boot-time kernel panic introduced in 4.4.0-18, not present in 4.4.0-15

Attached is lspci ** Attachment added: "lspci" https://bugs.launchpad.net/ubuntu/+source/linux-lts-xenial/+bug/1572630/+attachment/4640782/+files/lspci -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu.

[Bug 1572630] Re: boot-time kernel panic introduced in 4.4.0-18, not present in 4.4.0-15

Attached is dmidecode ** Attachment added: "dmidecode" https://bugs.launchpad.net/ubuntu/+source/linux-lts-xenial/+bug/1572630/+attachment/4640781/+files/dmidecode -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu.

[Bug 1572630] Re: boot-time kernel panic introduced in 4.4.0-18, not present in 4.4.0-15

add lshw output ** Attachment added: "lshw" https://bugs.launchpad.net/ubuntu/+source/linux-lts-xenial/+bug/1572630/+attachment/4640783/+files/lshw -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu.