- Original Message -
> Jan Stancek writes:
> > Hi Mike,
> >
> > Revert of 67961f9db8c4 helps, I let whole suite run for 100 iterations,
> > there were no issues.
> >
> > I cut down reproducer and removed last mmap/write/munmap as that is enough
> > to reproduce the problem. Then I star
Jan Stancek writes:
> Hi Mike,
>
> Revert of 67961f9db8c4 helps, I let whole suite run for 100 iterations,
> there were no issues.
>
> I cut down reproducer and removed last mmap/write/munmap as that is enough
> to reproduce the problem. Then I started introducing some traces into kernel
> and not
On 10/17/2016 03:53 PM, Mike Kravetz wrote:
> On 10/16/2016 10:04 PM, Aneesh Kumar K.V wrote:
>>
>> looking at that commit, I am not sure region_chg output indicate a hole
>> punched. ie, w.r.t private mapping when we mmap, we don't do a
>> region_chg (hugetlb_reserve_page()). So with a fault later
On 10/17/2016 11:27 AM, Aneesh Kumar K.V wrote:
> Jan Stancek writes:
>
>
>> Hi Mike,
>>
>> Revert of 67961f9db8c4 helps, I let whole suite run for 100 iterations,
>> there were no issues.
>>
>> I cut down reproducer and removed last mmap/write/munmap as that is enough
>> to reproduce the proble
On 10/16/2016 10:04 PM, Aneesh Kumar K.V wrote:
> Mike Kravetz writes:
>
>> On 10/14/2016 01:48 AM, Jan Stancek wrote:
>>> On 10/14/2016 01:26 AM, Mike Kravetz wrote:
Hi Jan,
Any chance you can get the contents of /sys/kernel/mm/hugepages
before and after the first run of
Jan Stancek writes:
> Hi Mike,
>
> Revert of 67961f9db8c4 helps, I let whole suite run for 100 iterations,
> there were no issues.
>
> I cut down reproducer and removed last mmap/write/munmap as that is enough
> to reproduce the problem. Then I started introducing some traces into kernel
> and n
ec.com,
> "aneesh kumar"
> , "iamjoonsoo kim"
> Sent: Saturday, 15 October, 2016 1:57:31 AM
> Subject: Re: [bug/regression] libhugetlbfs testsuite failures and OOMs
> eventually kill my system
>
>
> It is pretty consistent that we leak a reserve page e
Mike Kravetz writes:
> On 10/14/2016 01:48 AM, Jan Stancek wrote:
>> On 10/14/2016 01:26 AM, Mike Kravetz wrote:
>>>
>>> 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
On 10/14/2016 01:48 AM, Jan Stancek wrote:
> On 10/14/2016 01:26 AM, Mike Kravetz wrote:
>>
>> 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/hugepa
On 10/14/2016 01:26 AM, Mike Kravetz wrote:
>
> 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
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
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:
>
>
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