BCM5719/tg3 loses connectivity due to missing heartbeats between fw and driver
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
The Ubuntu-power-systems project |
Fix Released
|
High
|
Canonical Kernel Team | ||
linux (Ubuntu) |
Fix Released
|
High
|
Canonical Kernel Team |
Bug Description
User reported several nodes lost connectivity in several situations, for instance during the netboot, in which a flood of arp traffic happens due to multiple simultaneous boot across the cluster.
No stack trace or message is seen, the device just stop receiving packets.
In our attempts to reproduce the issue BCM5719 lost connectivity, always only under a heavy arp storm, in the follow situations:
- changing MTU
- interface configuration (with ifconfig or ip tool)
- netboot
In order to fix the issue we need to include the upstream patches:
1 - https:/
which reads: "tg3: Fix rx hang on MTU change with 5717/5719 "
2 - https:/
which reads: "tg3: APE heartbeat changes"
Considering that 18.04 is planned to use linux 4.15 we will need to backport only the second patch.
I'll submit it to the ml and post here a reference.
CVE References
tags: | added: architecture-ppc64le bugnameltc-165090 severity-high targetmilestone-inin1804 |
Changed in ubuntu: | |
assignee: | nobody → Ubuntu on IBM Power Systems Bug Triage (ubuntu-power-triage) |
affects: | ubuntu → linux (Ubuntu) |
Changed in ubuntu-power-systems: | |
assignee: | nobody → Canonical Kernel Team (canonical-kernel-team) |
importance: | Undecided → High |
tags: | added: triage-g |
Changed in linux (Ubuntu): | |
importance: | Undecided → High |
Changed in ubuntu-power-systems: | |
status: | New → Triaged |
Changed in linux (Ubuntu): | |
assignee: | Ubuntu on IBM Power Systems Bug Triage (ubuntu-power-triage) → Canonical Kernel Team (canonical-kernel-team) |
Changed in linux (Ubuntu): | |
status: | New → Fix Committed |
Changed in ubuntu-power-systems: | |
status: | Triaged → Fix Committed |
Changed in ubuntu-power-systems: | |
status: | Fix Committed → Fix Released |
------- Comment From <email address hidden> 2018-02-26 07:39 EDT------- /lists. ubuntu. com/archives/ kernel- team/2018- February/ 090372. html
FYI I've submitted the patch to the mail list: https:/