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Re: [bug/regression] libhugetlbfs testsuite failures and OOMs eventually kill my system

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On 10/13/2016 08:24 AM, Mike Kravetz wrote:
> On 10/13/2016 05:19 AM, Jan Stancek wrote:
>> Hi,
>>
>> I'm running into ENOMEM failures with libhugetlbfs testsuite [1] on
>> a power8 lpar system running 4.8 or latest git [2]. Repeated runs of
>> this suite trigger multiple OOMs, that eventually kill entire system,
>> it usually takes 3-5 runs:
>>
>>  * Total System Memory......:  18024 MB
>>  * Shared Mem Max Mapping...:    320 MB
>>  * System Huge Page Size....:     16 MB
>>  * Available Huge Pages.....:     20
>>  * Total size of Huge Pages.:    320 MB
>>  * Remaining System Memory..:  17704 MB
>>  * Huge Page User Group.....:  hugepages (1001)
>>

Hi Jan,

Any chance you can get the contents of /sys/kernel/mm/hugepages
before and after the first run of libhugetlbfs testsuite on Power?
Perhaps a script like:

cd /sys/kernel/mm/hugepages
for f in hugepages-*/*; do
	n=`cat $f`;
	echo -e "$n\t$f";
done

Just want to make sure the numbers look as they should.

-- 
Mike Kravetz

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Thread

[bug/regression] libhugetlbfs testsuite failures and OOMs eventually  kill my system Jan Stancek <jstancek@redhat.com> - 2016-10-13 14:30 +0200
  Re: [bug/regression] libhugetlbfs testsuite failures and OOMs  eventually kill my system Mike Kravetz <mike.kravetz@oracle.com> - 2016-10-13 17:30 +0200
    Re: [bug/regression] libhugetlbfs testsuite failures and OOMs  eventually kill my system Mike Kravetz <mike.kravetz@oracle.com> - 2016-10-14 01:30 +0200
      Re: [bug/regression] libhugetlbfs testsuite failures and OOMs  eventually kill my system Jan Stancek <jstancek@redhat.com> - 2016-10-14 10:50 +0200
        Re: [bug/regression] libhugetlbfs testsuite failures and OOMs  eventually kill my system Mike Kravetz <mike.kravetz@oracle.com> - 2016-10-15 02:00 +0200
          Re: [bug/regression] libhugetlbfs testsuite failures and OOMs eventually kill my system "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com> - 2016-10-17 10:50 +0200
            Re: [bug/regression] libhugetlbfs testsuite failures and OOMs  eventually kill my system Mike Kravetz <mike.kravetz@oracle.com> - 2016-10-18 01:00 +0200
              Re: [bug/regression] libhugetlbfs testsuite failures and OOMs  eventually kill my system Mike Kravetz <mike.kravetz@oracle.com> - 2016-10-18 03:20 +0200
          Re: [bug/regression] libhugetlbfs testsuite failures and OOMs  eventually kill my system Jan Stancek <jstancek@redhat.com> - 2016-10-17 16:50 +0200
            Re: [bug/regression] libhugetlbfs testsuite failures and OOMs eventually kill my system "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com> - 2016-10-17 20:30 +0200
              Re: [bug/regression] libhugetlbfs testsuite failures and OOMs  eventually kill my system Mike Kravetz <mike.kravetz@oracle.com> - 2016-10-18 01:30 +0200
            Re: [bug/regression] libhugetlbfs testsuite failures and OOMs eventually kill my system "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com> - 2016-10-18 10:40 +0200
              Re: [bug/regression] libhugetlbfs testsuite failures and OOMs  eventually kill my system Jan Stancek <jstancek@redhat.com> - 2016-10-18 13:40 +0200

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