Fix misleading error message: Configuring the VNIC characteristics failed
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
Ubuntu on IBM z Systems |
Fix Released
|
High
|
Canonical Kernel Team | ||
linux (Ubuntu) |
Fix Released
|
Undecided
|
Skipper Bug Screeners | ||
Bionic |
Fix Released
|
Undecided
|
Unassigned | ||
Eoan |
Fix Released
|
Undecided
|
Unassigned | ||
Focal |
Fix Released
|
Undecided
|
Skipper Bug Screeners |
Bug Description
SRU Justification:
------------------
[Impact]
* For devices that don't support the 'INVISIBLE' characteristic (ie. OSA), the resulting IO failure raises the noisy error message "Configuring the VNIC characteristics failed"
* The INVISIBLE characteristic unconditionally gets switched off, which is reverted with this patch.
* For Internal Queued Direct communication (IQD) 'INVISIBLE' is off by default.
* Hence the INVISIBLE characteristic case is unnecessary.
[Fix]
* 68c57bfd52836e3
* Upstream accepted with v5.5-rc5, but backport for 4.19-stable and 5.4-stable here: https:/
[Test Case]
* Configure an IBM z15 for LinuxONE III machine with at least one OSA adapter.
* Check dmsg for message "Configuring the VNIC characteristics failed" while setting an OSA device online.
[Regression Potential]
* The regression potential is low, since the patch is limited to a single line
* again limited to the s390x architecture and once again limited to the qeth network driver
* and on z15 hardware only.
[Other Info]
* This bug was identified at IBM while testing and is now rolled out to several different kernels.
* Once the patch got applied to the Ubuntu kernel(s) and a verification is required,
* this needs to be done by IBM, since Canonical doesn't have the needed machine generation.
__________
The patch titled s390/qeth: fix false reporting of VNIC CHAR config failure
has been added to the 4.19-stable tree which can be found at: http://
The filename of the patch is: s390-qeth-
Same for the the 5.4-stable tree which can be found at: http://
The filename of the patch is: s390-qeth-
s390/qeth: fix false reporting of VNIC CHAR config failure
commit 68c57bfd52836e3
Request: Please provide that fix also for Ubuntu 18.04 .
Many thanks in advance
CVE References
tags: | added: architecture-s39064 bugnameltc-183400 severity-high targetmilestone-inin1804 |
Changed in ubuntu: | |
assignee: | nobody → Skipper Bug Screeners (skipper-screen-team) |
affects: | ubuntu → linux (Ubuntu) |
Changed in ubuntu-z-systems: | |
assignee: | nobody → Canonical Kernel Team (canonical-kernel-team) |
Changed in ubuntu-z-systems: | |
importance: | Undecided → High |
summary: |
- [UBUNTU-18.04] Fix for "Configuring the VNIC characteristics failed" + [UBUNTU] Fix the misleading error message: Configuring the VNIC + characteristics failed |
summary: |
- [UBUNTU] Fix the misleading error message: Configuring the VNIC + [UBUNTU] Fix misleading error message: Configuring the VNIC characteristics failed |
summary: |
- [UBUNTU] Fix misleading error message: Configuring the VNIC - characteristics failed + Fix misleading error message: Configuring the VNIC characteristics + failed |
Changed in linux (Ubuntu Bionic): | |
status: | Triaged → Fix Committed |
Changed in linux (Ubuntu Eoan): | |
status: | Triaged → Fix Committed |
./stable- queue-4. 19.97/releases/ 4.19.97/ s390-qeth- fix-false- reporting- of-vnic- char-config- failure. patch queue-4. 19.97/queue- 5.4/s390- qeth-fix- false-reporting -of-vnic- char-config- failure. patch
./stable-