Comment 0 for bug 1569468

Running stress-ng on s390 in all three modes. This seems to work ok in z/KVM, however, on zVM and LPAR as of a few days ago on Xenial the mmap stressor has started failing.

I tried to get detailed logs but either don't know the correct switches or they simply aren't there.

Here is the output when I used --log-file and --verbose:
root@s1lp10-jefflane:~# less stress-ng-mmap-fail.log
stress-ng: debug: [179421] 4 processors online, 4 processors configured
stress-ng: info: [179421] dispatching hogs: 4 mmap
stress-ng: debug: [179421] cache allocate: reducing cache level from L3 (too high) to L2
stress-ng: info: [179421] cache allocate: default cache size: 2048K
stress-ng: debug: [179421] starting stressors
stress-ng: debug: [179422] stress-ng-mmap: started [179422] (instance 0)
stress-ng: debug: [179423] stress-ng-mmap: started [179423] (instance 1)
stress-ng: debug: [179424] stress-ng-mmap: started [179424] (instance 2)
stress-ng: debug: [179421] 4 stressors spawned
stress-ng: debug: [179425] stress-ng-mmap: started [179425] (instance 3)
stress-ng: debug: [179424] stress-ng-mmap: exited [179424] (instance 2)
stress-ng: debug: [179422] stress-ng-mmap: exited [179422] (instance 0)
stress-ng: debug: [179421] process [179422] terminated
stress-ng: debug: [179421] process 179423 (stress-ng-mmap) terminated on signal: 7 (Bus error)
stress-ng: debug: [179421] process [179423] terminated
stress-ng: debug: [179421] process [179424] terminated
stress-ng: debug: [179421] process 179425 (stress-ng-mmap) terminated on signal: 7 (Bus error)
stress-ng: debug: [179421] process [179425] terminated
stress-ng: info: [179421] unsuccessful run completed in 300.68s (5 mins, 0.68 secs)

That is the only info I have for the failure, unfortunately.

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: stress-ng 0.05.23-1
ProcVersionSignature: Ubuntu 4.4.0-18.34-generic 4.4.6
Uname: Linux 4.4.0-18-generic s390x
ApportVersion: 2.20.1-0ubuntu1
Architecture: s390x
Date: Tue Apr 12 12:47:49 2016
ProcEnviron:
 TERM=screen
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: stress-ng
UpgradeStatus: No upgrade log present (probably fresh install)