Public bug reported: This test will fail with the 4.15 kvm kernel in -release. Therefore this might not be a kernel regression but a tool issue.
Complete syslog output can be found here: https://pastebin.ubuntu.com/p/tYTf8gh5ft/ Test output: 10:13:57 DEBUG| [stdout] Stress test: /home/ubuntu/autotest/client/tmp/ubuntu_ramfs_stress/src/stress-ng/stress-ng --verify --times --metrics-brief --syslog --keep-name -t 15s --hdd 4 --hdd-opts sync,wr-rnd,rd-rnd,fadv-willneed,fadv-rnd --link 4 --symlink 4 --lockf 4 --seek 4 --aio 4 --aio-requests 32 --dentry 4 --dir 4 --dentry-order stride --fallocate 4 --fstat 4 --dentries 65536 --io 1 --lease 4 --mmap 0 --mmap-file --mmap-async --open 4 --rename 4 --hdd-bytes 32M --fallocate-bytes 32M --chdir 4 --chmod 4 --filename 4 --rename 4 --mmap-bytes 32M --hdd-write-size 512 10:13:57 DEBUG| [stdout] Mount point: /mnt/ramfs-test-1002 10:13:57 DEBUG| [stdout] Date: Tue Jul 17 10:13:57 UTC 2018 10:13:57 DEBUG| [stdout] Host: harpo 10:13:57 DEBUG| [stdout] Kernel: 4.15.0-1011-kvm #11-Ubuntu SMP Fri May 25 08:24:07 UTC 2018 10:13:57 DEBUG| [stdout] Machine: harpo x86_64 x86_64 10:13:57 DEBUG| [stdout] CPUs online: 2 10:13:57 DEBUG| [stdout] CPUs total: 2 10:13:57 DEBUG| [stdout] Page size: 4096 10:13:57 DEBUG| [stdout] Pages avail: 216098 10:13:57 DEBUG| [stdout] Pages total: 255157 10:13:57 DEBUG| [stdout] -------------------------------------------------------------------------------- 10:13:57 DEBUG| [stdout] 10:13:57 DEBUG| [stdout] 10:13:57 DEBUG| [stdout] stress-ng: info: [1024] dispatching hogs: 4 hdd, 4 link, 4 symlink, 4 lockf, 4 seek, 4 aio, 4 dentry, 4 dir, 4 fallocate, 4 fstat, 1 io, 4 lease, 2 mmap, 4 open, 4 rename, 4 chdir, 4 chmod, 4 filename, 4 rename 10:14:13 ERROR| Exception escaping from test: Traceback (most recent call last): File "/home/ubuntu/autotest/client/shared/test.py", line 411, in _exec _call_test_function(self.execute, *p_args, **p_dargs) File "/home/ubuntu/autotest/client/shared/test.py", line 823, in _call_test_function return func(*args, **dargs) File "/home/ubuntu/autotest/client/shared/test.py", line 291, in execute postprocess_profiled_run, args, dargs) File "/home/ubuntu/autotest/client/shared/test.py", line 212, in _call_run_once self.run_once(*args, **dargs) File "/home/ubuntu/autotest/client/tests/ubuntu_ramfs_stress/ubuntu_ramfs_stress.py", line 70, in run_once self.results = utils.system_output(cmd, retain_output=True) File "/home/ubuntu/autotest/client/shared/utils.py", line 1267, in system_output verbose=verbose, args=args).stdout File "/home/ubuntu/autotest/client/shared/utils.py", line 918, in run "Command returned non-zero exit status") CmdError: Command <LOG=/tmp/ramfs-falure.log STRESS_NG=/home/ubuntu/autotest/client/tmp/ubuntu_ramfs_stress/src/stress-ng/stress-ng DURATION=15s bash -c /home/ubuntu/autotest/client/tests/ubuntu_ramfs_stress/ubuntu_ramfs_stress.sh /home/ubuntu/autotest/client/tmp/ubuntu_ramfs_stress/src 2>&1> failed, rc=-9, Command returned non-zero exit status * Command: LOG=/tmp/ramfs-falure.log STRESS_NG=/home/ubuntu/autotest/client/tmp/ubuntu_ramfs_stress/src/stress- ng/stress-ng DURATION=15s bash -c /home/ubuntu/autotest/client/tests/ubunt u_ramfs_stress/ubuntu_ramfs_stress.sh /home/ubuntu/autotest/client/tmp/ubuntu_ramfs_stress/src 2>&1 Exit status: -9 Duration: 15.3993020058 stdout: -------------------------------------------------------------------------------- Stress test: /home/ubuntu/autotest/client/tmp/ubuntu_ramfs_stress/src/stress-ng/stress-ng --verify --times --metrics-brief --syslog --keep-name -t 15s --hdd 4 --hdd-opts sync,wr-rnd,rd-rnd,fadv-willneed,fadv-rnd --link 4 --symlink 4 --lockf 4 --seek 4 --aio 4 --aio-requests 32 --dentry 4 --dir 4 --dentry-order stride --fallocate 4 --fstat 4 --dentries 65536 --io 1 --lease 4 --mmap 0 --mmap-file --mmap-async --open 4 --rename 4 --hdd-bytes 32M --fallocate-bytes 32M --chdir 4 --chmod 4 --filename 4 --rename 4 --mmap-bytes 32M --hdd-write-size 512 Mount point: /mnt/ramfs-test-1002 Date: Tue Jul 17 10:13:57 UTC 2018 Host: harpo Kernel: 4.15.0-1011-kvm #11-Ubuntu SMP Fri May 25 08:24:07 UTC 2018 Machine: harpo x86_64 x86_64 CPUs online: 2 CPUs total: 2 Page size: 4096 Pages avail: 216098 Pages total: 255157 -------------------------------------------------------------------------------- stress-ng: info: [1024] dispatching hogs: 4 hdd, 4 link, 4 symlink, 4 lockf, 4 seek, 4 aio, 4 dentry, 4 dir, 4 fallocate, 4 fstat, 1 io, 4 lease, 2 mmap, 4 open, 4 rename, 4 chdir, 4 chmod, 4 filename, 4 rename 10:14:14 ERROR| child process failed 10:14:14 DEBUG| Traceback (most recent call last): 10:14:14 DEBUG| File "/home/ubuntu/autotest/client/parallel.py", line 25, in fork_start 10:14:14 DEBUG| l() 10:14:14 DEBUG| File "/home/ubuntu/autotest/client/job.py", line 505, in <lambda> 10:14:14 DEBUG| l = lambda: test.runtest(self, url, tag, args, dargs) 10:14:14 DEBUG| File "/home/ubuntu/autotest/client/test.py", line 125, in runtest 10:14:14 DEBUG| job.sysinfo.log_after_each_iteration) 10:14:14 DEBUG| File "/home/ubuntu/autotest/client/shared/test.py", line 913, in runtest 10:14:14 DEBUG| mytest._exec(args, dargs) 10:14:14 DEBUG| File "/home/ubuntu/autotest/client/shared/test.py", line 411, in _exec 10:14:14 DEBUG| _call_test_function(self.execute, *p_args, **p_dargs) 10:14:14 DEBUG| File "/home/ubuntu/autotest/client/shared/test.py", line 823, in _call_test_function 10:14:14 DEBUG| return func(*args, **dargs) 10:14:14 DEBUG| File "/home/ubuntu/autotest/client/shared/test.py", line 291, in execute 10:14:14 DEBUG| postprocess_profiled_run, args, dargs) 10:14:14 DEBUG| File "/home/ubuntu/autotest/client/shared/test.py", line 212, in _call_run_once 10:14:14 DEBUG| self.run_once(*args, **dargs) 10:14:14 DEBUG| File "/home/ubuntu/autotest/client/tests/ubuntu_ramfs_stress/ubuntu_ramfs_stress.py", line 70, in run_once 10:14:14 DEBUG| self.results = utils.system_output(cmd, retain_output=True) 10:14:14 DEBUG| File "/home/ubuntu/autotest/client/shared/utils.py", line 1267, in system_output 10:14:14 DEBUG| verbose=verbose, args=args).stdout 10:14:14 DEBUG| File "/home/ubuntu/autotest/client/shared/utils.py", line 918, in run 10:14:14 DEBUG| "Command returned non-zero exit status") 10:14:14 DEBUG| CmdError: Command <LOG=/tmp/ramfs-falure.log STRESS_NG=/home/ubuntu/autotest/client/tmp/ubuntu_ramfs_stress/src/stress-ng/stress-ng DURATION=15s bash -c /home/ubuntu/autotest/client/tests/ubuntu_ramfs_stress/ubuntu_ramfs_stress.sh /home/ubuntu/autotest/client/tmp/ubuntu_ramfs_stress/src 2>&1> failed, rc=-9, Command returned non-zero exit status 10:14:14 DEBUG| * Command: 10:14:14 DEBUG| LOG=/tmp/ramfs-falure.log 10:14:14 DEBUG| STRESS_NG=/home/ubuntu/autotest/client/tmp/ubuntu_ramfs_stress/src/stress- 10:14:14 DEBUG| ng/stress-ng DURATION=15s bash -c /home/ubuntu/autotest/client/tests/ubunt 10:14:14 DEBUG| u_ramfs_stress/ubuntu_ramfs_stress.sh 10:14:14 DEBUG| /home/ubuntu/autotest/client/tmp/ubuntu_ramfs_stress/src 2>&1 10:14:14 DEBUG| Exit status: -9 10:14:14 DEBUG| Duration: 15.3993020058 ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: linux-image-4.15.0-1011-kvm 4.15.0-1011.11 ProcVersionSignature: User Name 4.15.0-1011.11-kvm 4.15.18 Uname: Linux 4.15.0-1011-kvm x86_64 ApportVersion: 2.20.9-0ubuntu7.2 Architecture: amd64 Date: Tue Jul 17 10:15:29 2018 ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=C.UTF-8 SHELL=/bin/bash SourcePackage: linux-kvm UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: ubuntu-kernel-tests Importance: Undecided Status: New ** Affects: linux-kvm (Ubuntu) Importance: Undecided Status: New ** Affects: stress-ng (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug bionic uec-images ** Also affects: ubuntu-kernel-tests Importance: Undecided Status: New ** Also affects: stress-ng (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1782114 Title: ubuntu_ramfs_stress OOM on 4.15 KVM kernel To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-kernel-tests/+bug/1782114/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs