Ubuntu 18.04 - wrong cpu-mf counter number
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
Ubuntu on IBM z Systems |
Fix Released
|
Medium
|
Frank Heimes | ||
linux (Ubuntu) |
Invalid
|
Undecided
|
Skipper Bug Screeners | ||
Bionic |
Fix Released
|
Medium
|
Unassigned |
Bug Description
SRU Justification:
==================
[Impact]
* wrong cpu-mf counter number of LAST_HOST_
[Fix]
* 81507f38d427ebe
[Test Case]
* inspect the counter number of the LAST_HOST_
* cat /sys/devices/
* returns 'event=0x00e9', but should be 'event=0x00e8'
* event is only available on z14 and higher, hence Canonical can only do regression testing - IBM the functional verification
[Regression Potential]
* very minimal, patch just changes one hex number in one code line
* change is limited to z14 (and higher) hardware counters only
[Other Info]
* fix/patch got upstream accepted with 4.16
* hence it's already in (cosmic and) disco and eoan and only need to be applied to bionic 4.15
__________
Kernel:
Linux t35lp11 4.15.0-64-generic #73-Ubuntu SMP Thu Sep 12 13:15:19 UTC 2019 s390x s390x s390x GNU/Linux
Description/
The cpu-mf counter LAST_HOST_
# cat /sys/devices/
event=0x00e9
should be event=0x00e8
Fix already available:
commit 81507f38d427ebe
CVE References
tags: | added: architecture-s39064 bugnameltc-181639 severity-medium targetmilestone-inin18043 |
Changed in ubuntu: | |
assignee: | nobody → Skipper Bug Screeners (skipper-screen-team) |
affects: | ubuntu → linux (Ubuntu) |
Changed in ubuntu-z-systems: | |
status: | New → Triaged |
status: | Triaged → Confirmed |
importance: | Undecided → Medium |
assignee: | nobody → Frank Heimes (frank-heimes) |
summary: |
- [Ubuntu 18.04] Ubuntu 18.04.3 - wrong cpu-mf counter number + [Ubuntu 18.04] Wrong cpu-mf counter number |
summary: |
- [Ubuntu 18.04] Wrong cpu-mf counter number + Ubuntu 18.04 - wrong cpu-mf counter number |
Changed in linux (Ubuntu Bionic): | |
importance: | Undecided → Medium |
status: | New → In Progress |
Changed in linux (Ubuntu): | |
status: | In Progress → Invalid |
Changed in linux (Ubuntu Bionic): | |
status: | In Progress → Fix Committed |
Changed in ubuntu-z-systems: | |
status: | In Progress → Fix Committed |
tags: |
added: verification-done-bionic removed: verification-needed-bionic |
Changed in ubuntu-z-systems: | |
status: | Fix Committed → Fix Released |
Kernel SRU request submitted: /lists. ubuntu. com/archives/ kernel- team/2019- October/ thread. html#104595
https:/
Changing status to 'In Progress'.