------- Comment From [email protected] 2017-07-10 11:46 EDT-------
This CMVC defect is being cancelled by the CDE Bridge because the corresponding 
CQ Defect [FW663285] was transferred out of the bridge domain.
Here are the additional details:
New Subsystem = ppc_triage
New Release = unspecified
New Component = ubuntu_linux
New OwnerInfo = Chavez, Luciano ([email protected])
To continue tracking this issue, please follow CQ defect [FW663285].

Assigning for screening...
It appears that the version of logind on this system does not support the value 
of "infinity", and is reverting to the default of 12288:

# cat /sys/fs/cgroup/pids/user.slice/user-0.slice/pids.max
12288

As a workaround until this can be resolved, specify an exact value.  You
can try using the current system thread-max value:

# cat /proc/sys/kernel/threads-max
3974272

/etc/systemd/logind.conf.d/htxlogindcustom.conf:
[Login]
UserTasksMax=3974272

Created mirror request (28237) Canonical Launchpad.

Information on this bug will potentially be exposed to the public.
Before you proceed, please make sure you read Content Guidelines for LTC
Bugzilla : Confidential vs. Non-confidential[1].

[1] - 
ftp://ausgsa.ibm.com/projects/l/ltc/ToolsInfrastructure/ProjectStatus/Bugzilla/Bugzilla_Content_Education_v2.pdf
The bug is ready to be mirrored to:

Distro:    Canonical Launchpad.
Project:   ubuntu
Package:   systemd

This defect will go to Linux as even after making the below 2 changes in
systemd resource limit, errors are seen:

root@yellowbee:/etc/systemd/logind.conf.d# cat htxlogindcustom.conf
[Login]
UserTasksMax=infinity
root@yellowbee:/etc/systemd/logind.conf.d# cat 
../system.conf.d/htxsystemdcustom.conf
[Manager]
DefaultTasksAccounting=yes
DefaultTasksMax=infinity

root@yellowbee:/etc/systemd/logind.conf.d#

logind limit for MaxUserTask as well as systemd limit was made infinite.
Please look defect SW363655 for more details and the suggestion given earlier 
by Linux team.

errors are still seen. So, would ask Linux team to take a look and see if 
anything else is causing these
errors.

== Comment: #3 - Kevin W. Rudd <[email protected]> - 2016-12-19 17:34:27 ==
It appears that the version of logind on this system does not support the value 
of "infinity", and is reverting to the default of 12288:

# cat /sys/fs/cgroup/pids/user.slice/user-0.slice/pids.max
12288

As a workaround until this can be resolved, specify an exact value.  You
can try using the current system thread-max value:

# cat /proc/sys/kernel/threads-max
3974272

/etc/systemd/logind.conf.d/htxlogindcustom.conf:
[Login]
UserTasksMax=3974272

== Comment: #4 - Kevin W. Rudd - 2016-12-20 10:25:09 ==

Canonical,

This issue appears to map to the following systemd bug and patch:

https://github.com/systemd/systemd/issues/3833

https://github.com/systemd/systemd/commit/f50582649f8eee73f59aff95fadd9a963ed4ffea

This patch appears to be included in debian/232-7, but is missing in the
xenial and yakkety versions.

Default Comment by Bridge
This error recreated on the smaller 1U Open Power system with the same smaller 
1-adapter/1-4U90 drawer/90 HDD. There are 2 cables connected to the drawer (one 
to each ESM) that requires multipath enabled.

lpar: yellowbee

root@yellowbee:~# cat /tmp/htxerr

/dev/sdao         Dec 16 01:14:44 2016 err=0000000b sev=1 hxestorage
rc 11, errno 11 from main(): pthread_create

/dev/sdak         Dec 16 01:14:44 2016 err=0000000b sev=1 hxestorage
rc 11, errno 11 from main(): pthread_create

/dev/sdt          Dec 16 01:14:44 2016 err=0000000b sev=1 hxestorage
rc 11, errno 11 from main(): pthread_create

/dev/sdaz         Dec 16 01:14:44 2016 err=0000000b sev=1 hxestorage
rc 11, errno 11 from main(): pthread_create

/dev/sdn          Dec 16 01:14:44 2016 err=0000000b sev=1 hxestorage
rc 11, errno 11 from main(): pthread_create

/dev/sdv          Dec 16 01:14:44 2016 err=0000000b sev=1 hxestorage
rc 11, errno 11 from main(): pthread_create

/dev/sdaj         Dec 16 01:14:44 2016 err=0000000b sev=1 hxestorage
rc 11, errno 11 from main(): pthread_create

/dev/sdal         Dec 16 01:14:44 2016 err=0000000b sev=1 hxestorage
rc 11, errno 11 from main(): pthread_create
== Comment: #1 - Application Cdeadmin <[email protected]> - 2016-12-19 
04:15:10 ==

Configuration: IBM 8001-22C (S822LC), LSI SAS adapters, SMC 4U90 disk
drawers, HDD (180) 7.3TB

Problem: HTX exercisers stopped on error, with HTX log showing "rc 11,
errno 11 from main(): pthread_create"

htxubuntu-425

lpar: busybee.aus.stglabs.ibm.com (root/ lab passwd)

root@busybee:~# uname -a
Linux busybee 4.4.0-51-generic #72-Ubuntu SMP Thu Nov 24 18:27:59 UTC 2016 
ppc64le ppc64le ppc64le GNU/Linux

root@busybee:~# cat /tmp/htxerr

/dev/sdh          Dec 12 23:52:42 2016 err=0000000b sev=1 hxestorage
rc 11, errno 11 from main(): pthread_create

/dev/sdh          Dec 12 23:52:42 2016 err=0000000b sev=1 hxestorage
Hardware Exerciser stopped on an error

/dev/sdao         Dec 12 23:52:42 2016 err=0000000b sev=1 hxestorage
rc 11, errno 11 from main(): pthread_create

/dev/sdao         Dec 12 23:52:42 2016 err=0000000b sev=1 hxestorage
Hardware Exerciser stopped on an error

/dev/sddx         Dec 12 23:52:42 2016 err=0000000b sev=1 hxestorage
rc 11, errno 11 from main(): pthread_create

/dev/sddx         Dec 12 23:52:42 2016 err=0000000b sev=1 hxestorage
Hardware Exerciser stopped on an error

/dev/sdcz         Dec 12 23:52:42 2016 err=0000000b sev=1 hxestorage
rc 11, errno 11 from main(): pthread_create

/dev/sdcz         Dec 12 23:52:42 2016 err=0000000b sev=1 hxestorage
Hardware Exerciser stopped on an error

/dev/sddp         Dec 12 23:52:42 2016 err=0000000b sev=1 hxestorage
rc 11, errno 11 from main(): pthread_create

/dev/sddp         Dec 12 23:52:42 2016 err=0000000b sev=1 hxestorage
Hardware Exerciser stopped on an error

No errors logged in syslog after starting HTX:

Thank you for taking the time to report this bug and helping to make
Ubuntu better.  It seems that your bug report is not filed about a
specific source package though, rather it is just filed against Ubuntu
in general.  It is important that bug reports be filed about source
packages so that people interested in the package can find the bugs
about it.  You can find some hints about determining what package your
bug might be about at https://wiki.ubuntu.com/Bugs/FindRightPackage.
You might also ask for help in the #ubuntu-bugs irc channel on Freenode.

To change the source package that this bug is filed about visit
https://bugs.launchpad.net/ubuntu/+bug/1651518/+editstatus and add the
package name in the text box next to the word Package.

[This is an automated message.  I apologize if it reached you inappropriately; 
please just reply to this message indicating so.]
Yet another mirror burp :-(

Fixed on the LP side.
It seems that more than just the package information was not set up properly 
during the mirroring.  Luciano helped set the owner of the LP bug to Taco 
Screen team, so this bug will hopefully soon get some traction on the Canonical 
side.

Thanks Luciano.
The indicated upstream patch, f50582649f8eee73f59aff95fadd9a963ed4ffea, does 
not apply cleanly against systemd 229.  Are there known prerequisites for this 
patch?

It looks like the commit referenced earlier also builds upon the
addition of the config_parse_tasks_max() function added in commit
6300502b .

The following example patch (based on systemd_229-4ubuntu14) focuses on
just the UserTasksMax "infinity" parsing.

A test build of systemd with the previous patch applied resolved the
parsing issue in my testing.

# cat /etc/systemd/logind.conf.d/usertasks.conf
[Login]
UserTasksMax=infinity

# cat /sys/fs/cgroup/pids/user.slice/user-0.slice/pids.max
max

cde00 ([email protected]) added native attachment 
/tmp/AIXOS06698101/systemd_infinity.debdiff on 2017-01-07 20:22:29
cde00 ([email protected]) added native attachment 
/tmp/AIXOS06698101/systemd_229.patch on 2017-01-07 20:22:29
Confirmed that the following fix is part of 232 present in zesty. Marking as 
Fix Released for devel series.

Accepted systemd into yakkety-proposed. The package will build now and
be available at
https://launchpad.net/ubuntu/+source/systemd/231-9ubuntu4 in a few
hours, and then in the -proposed repository.

If this package fixes the bug for you, please add a comment to this bug,
mentioning the version of the package you tested, and change the tag
from verification-needed to verification-done. If it does not fix the
bug for you, please add a comment stating that, and change the tag to
verification-failed.  In either case, details of your testing will help
us make a better decision.

systemd-231-9ubuntu4 looks good for yakkety.  It appears that there are
other changes since user-0.slice was no longer present, but the parent
pids.max is now set to "max":

root@kwr-yakkety:~# cat /sys/fs/cgroup/pids/user.slice/user-0.slice/pids.max
cat: /sys/fs/cgroup/pids/user.slice/user-0.slice/pids.max: No such file or 
directory

root@kwr-yakkety:~# cat /sys/fs/cgroup/pids/user.slice/pids.max
max

We are now just waiting on xenial for closure.

Thanks.
This bug was fixed in the package systemd - 231-9ubuntu4

---------------
systemd (231-9ubuntu4) yakkety; urgency=medium

* debian/extra/units/systemd-resolved.service.d/resolvconf.conf: if
resolved is going to be started, make sure this blocks
network-online.target.  LP: #1673860.
* debian/patches/resolved-follow-CNAMES-for-DNS-stub-replies.patch:
Cherry-pick upstream fix for resolved failing to follow CNAMES for DNS
stub replies. LP: #1647031.
* debian/patches/logind-update-empty-and-infinity-handling-for-User-T.patch:
Cherry-pick upstream fix to handle empty and "infinity" values for
[User]TasksMax.  Closes LP: #1651518.

-- Steve Langasek <[email protected]>  Mon, 20 Mar 2017 22:14:14
-0700

The verification of the Stable Release Update for systemd has completed 
successfully and the package has now been released to -updates.  Subsequently, 
the Ubuntu Stable Release Updates Team is being unsubscribed and will not 
receive messages about this bug report.  In the event that you encounter a 
regression using the package from -updates please report a new bug using 
ubuntu-bug and tag the bug report regression-update so we can easily find any 
regressions.
This CMVC defect is being cancelled by the CDE Bridge because the corresponding 
CQ Defect [FW663285] was transferred out of the bridge domain.
Here are the additional details:
New Subsystem = ppc_triage
New Release = unspecified
New Component = ubuntu_linux
New OwnerInfo = Chavez, Luciano ([email protected])
To continue tracking this issue, please follow CQ defect [FW663285].

** Bug watch added: github.com/systemd/systemd/issues #3833
   https://github.com/systemd/systemd/issues/3833

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https://bugs.launchpad.net/bugs/1651518

Title:
  systemd/logind parsing problem: HTX exercisers stopped on error: rc
  11, errno 11 from main(): pthread_create

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