[v4.13,mlx5_core] Oops: 0000 [#1] SMP PTI

Bug #1747625 reported by Alvaro Uría on 2018-02-06
12
This bug affects 1 person
Affects Status Importance Assigned to Milestone
linux (Ubuntu)
Medium
Unassigned
Artful
Medium
Unassigned

Bug Description

PowerEdge R730
4.13.0-26-generic #29~16.04.2-Ubuntu
mlx5_core firmware version: 14.20.1820

kernel trace: https://pastebin.ubuntu.com/26529021/

Issue happened when I issued "reboot" command. Other nodes with same specifications and software versions didn't hit this bug.

A new "reboot" on the node that panic'ed didn't hit the bug.

I've set "pti=off" on all of them for now.
---
AlsaDevices:
 total 0
 crw-rw---- 1 root audio 116, 1 Feb 5 13:07 seq
 crw-rw---- 1 root audio 116, 33 Feb 5 13:07 timer
AplayDevices: Error: [Errno 2] No such file or directory
ApportVersion: 2.20.1-0ubuntu2.15
Architecture: amd64
ArecordDevices: Error: [Errno 2] No such file or directory
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
DistroRelease: Ubuntu 16.04
IwConfig: Error: [Errno 2] No such file or directory
Lsusb:
 Bus 002 Device 002: ID 8087:8002 Intel Corp.
 Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
 Bus 001 Device 003: ID 413c:a001 Dell Computer Corp. Hub
 Bus 001 Device 002: ID 8087:800a Intel Corp.
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: Dell Inc. PowerEdge R730
Package: linux (not installed)
PciMultimedia:

ProcFB: 0 mgadrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.13.0-32-generic.efi.signed root=UUID=2344957a-f5ed-46a7-87a5-255ab83876fb ro console=tty0 console=ttyS0,115200 console=ttyS1,115200 panic=30 raid=noautodetect modprobe.blacklist=floppy
ProcVersionSignature: Ubuntu 4.13.0-32.35~16.04.1-generic 4.13.13
RelatedPackageVersions:
 linux-restricted-modules-4.13.0-32-generic N/A
 linux-backports-modules-4.13.0-32-generic N/A
 linux-firmware 1.157.14
RfKill: Error: [Errno 2] No such file or directory
Tags: xenial uec-images xenial uec-images
Uname: Linux 4.13.0-32-generic x86_64
UnreportableReason: The report belongs to a package that is not installed.
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm audio cdrom dialout dip floppy libvirtd netdev plugdev sudo video
_MarkForUpload: False
dmi.bios.date: 09/06/2016
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 2.2.5
dmi.board.name: 04N3DF
dmi.board.vendor: Dell Inc.
dmi.board.version: A10
dmi.chassis.type: 23
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvr2.2.5:bd09/06/2016:svnDellInc.:pnPowerEdgeR730:pvr:rvnDellInc.:rn04N3DF:rvrA10:cvnDellInc.:ct23:cvr:
dmi.product.name: PowerEdge R730
dmi.sys.vendor: Dell Inc.

This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:

apport-collect 1747625

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

Changed in linux (Ubuntu):
status: New → Incomplete
tags: added: artful

apport information

tags: added: apport-collected uec-images xenial
description: updated

apport information

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Changed in linux (Ubuntu):
status: Incomplete → Confirmed
Joseph Salisbury (jsalisbury) wrote :

Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.15 kernel[0].

If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'.

Once testing of the upstream kernel is complete, please mark this bug as "Confirmed".

Thanks in advance.

[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.15

Changed in linux (Ubuntu):
importance: Undecided → Medium
tags: added: pti
Changed in linux (Ubuntu):
status: Confirmed → Incomplete
Changed in linux (Ubuntu Artful):
status: New → Incomplete
importance: Undecided → Medium
Joseph Salisbury (jsalisbury) wrote :

Please ignore the request for testing of the mainline kernel in comment #12. It would be best to test the 4.13 -proposed kernel, which can be downloaded from:

https://launchpad.net/~canonical-kernel-team/+archive/ubuntu/ppa/+build/14341641

tags: added: kernel-key
Joseph Salisbury (jsalisbury) wrote :

Also, if possible, it would be great if we could get access to the HW for debugging. Feel free to reach out on #stable-kernel on IRC(Canonical server) or by email.

Changed in linux (Ubuntu Artful):
status: Incomplete → Triaged
Changed in linux (Ubuntu):
status: Incomplete → Triaged
Peter Sabaini (peter-sabaini) wrote :

Just a note that I didn't see this panic with 4.13.0-36-generic and rebooting 66 nodes

tags: added: kernel-da-key
removed: kernel-key
Changed in linux (Ubuntu Artful):
status: Triaged → Incomplete
Changed in linux (Ubuntu):
status: Triaged → Incomplete
Launchpad Janitor (janitor) wrote :

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]

Changed in linux (Ubuntu):
status: Incomplete → Expired
Launchpad Janitor (janitor) wrote :

[Expired for linux (Ubuntu Artful) because there has been no activity for 60 days.]

Changed in linux (Ubuntu Artful):
status: Incomplete → Expired
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