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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/36627/
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(Updated July 24, 2015, 5:32 p.m.)


Review request for mesos, Benjamin Hindman and Joris Van Remoortere.


Changes
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Added a fix for flaky cgroups memory pressure test.


Bugs: MESOS-2660
    https://issues.apache.org/jira/browse/MESOS-2660


Repository: mesos


Description
-------

See summary.


Diffs (updated)
-----

  src/tests/cgroups_tests.cpp 9f5028f831a5a2fd4f7f0a0b7459c184ea9598fb 
  src/tests/memory_test_helper.cpp 8093e66c45cacc4bf0295a3448c128a1aa7c751a 

Diff: https://reviews.apache.org/r/36627/diff/


Testing
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It seems there is still one more cgroups memory test failing on more test failing on my box. I'd like to fix that too and commit it together with this one. 

sudo make check

Verified that the process actually gets killed by oom-killer:

```
# tail -f /var/log/syslog

Jul 22 14:56:00 harutyunyan-virtual-machine kernel: [17440.052405] lt-memory-test- invoked oom-killer: gfp_mask=0xd0, order=0, oom_score_adj=0
Jul 22 14:56:00 harutyunyan-virtual-machine kernel: [17440.052408] lt-memory-test- cpuset=/ mems_allowed=0
Jul 22 14:56:00 harutyunyan-virtual-machine kernel: [17440.052411] CPU: 7 PID: 76599 Comm: lt-memory-test- Tainted: G           OE 3.16.0-41-generic #57~14.04.1-Ubuntu
Jul 22 14:56:00 harutyunyan-virtual-machine kernel: [17440.052413] Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 05/20/2014
Jul 22 14:56:00 harutyunyan-virtual-machine kernel: [17440.052413]  ffff88022efc1000 ffff8801fd2efc30 ffffffff81765721 ffff880231f10a30
Jul 22 14:56:00 harutyunyan-virtual-machine kernel: [17440.052415]  ffff8801fd2efcb8 ffffffff8175f2d5 ffff8802366f30c0 ffff8801e9405b00
Jul 22 14:56:00 harutyunyan-virtual-machine kernel: [17440.052416]  ffff8801fd2efc80 ffffffff81165067 ffff880231f10ee8 ffff880231f10a30
Jul 22 14:56:00 harutyunyan-virtual-machine kernel: [17440.052418] Call Trace:
Jul 22 14:56:00 harutyunyan-virtual-machine kernel: [17440.052424]  [<ffffffff81765721>] dump_stack+0x45/0x56
Jul 22 14:56:00 harutyunyan-virtual-machine kernel: [17440.052426]  [<ffffffff8175f2d5>] dump_header+0x7f/0x1f1
Jul 22 14:56:00 harutyunyan-virtual-machine kernel: [17440.052430]  [<ffffffff81165067>] ? find_lock_task_mm+0x47/0xa0
Jul 22 14:56:00 harutyunyan-virtual-machine kernel: [17440.052432]  [<ffffffff811654e5>] oom_kill_process+0x205/0x360
Jul 22 14:56:00 harutyunyan-virtual-machine kernel: [17440.052434]  [<ffffffff812eb975>] ? security_capable_noaudit+0x15/0x20
Jul 22 14:56:00 harutyunyan-virtual-machine kernel: [17440.052437]  [<ffffffff811ca2e1>] mem_cgroup_oom_synchronize+0x581/0x5e0
Jul 22 14:56:00 harutyunyan-virtual-machine kernel: [17440.052439]  [<ffffffff811c97c0>] ? mem_cgroup_try_charge_mm+0xa0/0xa0
Jul 22 14:56:00 harutyunyan-virtual-machine kernel: [17440.052440]  [<ffffffff81165ce4>] pagefault_out_of_memory+0x14/0x80
Jul 22 14:56:00 harutyunyan-virtual-machine kernel: [17440.052442]  [<ffffffff8175d97f>] mm_fault_error+0x67/0x140
Jul 22 14:56:00 harutyunyan-virtual-machine kernel: [17440.052445]  [<ffffffff8105b28c>] __do_page_fault+0x4ec/0x560
Jul 22 14:56:00 harutyunyan-virtual-machine kernel: [17440.052449]  [<ffffffff810a6208>] ? __enqueue_entity+0x78/0x80
Jul 22 14:56:00 harutyunyan-virtual-machine kernel: [17440.052450]  [<ffffffff810a7f35>] ? set_next_entity+0x95/0xb0
Jul 22 14:56:00 harutyunyan-virtual-machine kernel: [17440.052452]  [<ffffffff81011627>] ? __switch_to+0x167/0x580
Jul 22 14:56:00 harutyunyan-virtual-machine kernel: [17440.052454]  [<ffffffff8105b331>] do_page_fault+0x31/0x70
Jul 22 14:56:00 harutyunyan-virtual-machine kernel: [17440.052456]  [<ffffffff8176fe68>] page_fault+0x28/0x30
Jul 22 14:56:00 harutyunyan-virtual-machine kernel: [17440.052457] Task in /mesos_test killed as a result of limit of /mesos_test
Jul 22 14:56:00 harutyunyan-virtual-machine kernel: [17440.052459] memory: usage 65536kB, limit 65536kB, failcnt 24
Jul 22 14:56:00 harutyunyan-virtual-machine kernel: [17440.052460] memory+swap: usage 0kB, limit 18014398509481983kB, failcnt 0
Jul 22 14:56:00 harutyunyan-virtual-machine kernel: [17440.052461] kmem: usage 0kB, limit 18014398509481983kB, failcnt 0
Jul 22 14:56:00 harutyunyan-virtual-machine kernel: [17440.052461] Memory cgroup stats for /mesos_test: cache:0KB rss:65536KB rss_huge:63488KB mapped_file:0KB writeback:0KB inactive_anon:0KB active_anon:0KB inactive_file:0KB active_file:0KB unevictable:65536KB
Jul 22 14:56:00 harutyunyan-virtual-machine kernel: [17440.052467] [ pid ]   uid  tgid total_vm      rss nr_ptes swapents oom_score_adj name
Jul 22 14:56:00 harutyunyan-virtual-machine kernel: [17440.052574] [76599]     0 76599    82452    31766     122        1             0 lt-memory-test-
Jul 22 14:56:00 harutyunyan-virtual-machine kernel: [17440.052575] Memory cgroup out of memory: Kill process 76599 (lt-memory-test-) score 14 or sacrifice child
Jul 22 14:56:00 harutyunyan-virtual-machine kernel: [17440.052577] Killed process 76599 (lt-memory-test-) total-vm:329808kB, anon-rss:67988kB, file-rss:59076kB


```


Thanks,

Artem Harutyunyan