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Thread: New Memory Leakage?

  1. #1
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    [Solved] New Memory Leakage?

    Has anyone else noticed significant memory leakage with the 3.7 kernel and raring packages?

    Now, I don't usually panic when I see my RAM usage get high; I generally assume that it's just doing disk caching. However, in the last week or two not only have I seen my RAM in the 90%+ range, but this morning I noticed my swap file was getting used as well.

    I don't believe this should be happening on a system with 12GB of RAM and hardly nothing running. I did not notice this at all when running quantal or previous versions.

    EDIT: I think Milos_SD below has identified the correct bug. Glad to know it's already been identified.
    Last edited by 3vi1; November 26th, 2012 at 08:48 PM. Reason: Solved.

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    Re: New Memory Leakage?

    is it on a fresh install ? or an old one rolling ?

    clean, as much you can, the system and use htop to know which app/process is eating memory.

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    Re: New Memory Leakage?

    It is not used by any app/process. It is a bug with incorrect NR_FREE_PAGES accounting. It is fixed in new 3.7-rc7 kernel.

    http://git.kernel.org/?p=linux/kerne...18ee0dc24c3386

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    Re: New Memory Leakage?

    Quote Originally Posted by Milos_SD View Post
    It is not used by any app/process. It is a bug with incorrect NR_FREE_PAGES accounting. It is fixed in new 3.7-rc7 kernel.

    http://git.kernel.org/?p=linux/kerne...18ee0dc24c3386
    For which to get we will have to wait for mainline to recover or proposed, if we are lazy enough to compile...
    I know (and You know) that I do not have proper excuse since I successfully did that several times...
    Last edited by zika; November 26th, 2012 at 03:11 PM.

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    Re: New Memory Leakage?

    Quote Originally Posted by 3vi1 View Post
    Has anyone else noticed significant memory leakage with the 3.7 kernel and raring packages?

    Now, I don't usually panic when I see my RAM usage get high; I generally assume that it's just doing disk caching. However, in the last week or two not only have I seen my RAM in the 90%+ range, but this morning I noticed my swap file was getting used as well.

    I don't believe this should be happening on a system with 12GB of RAM and hardly nothing running. I did not notice this at all when running quantal or previous versions.

    Funny you mentioned this. I am assuming it is firefox. What happened to me thismorning is that I have another system that has been running on my KVM in the backgorund, haven't checked it for a few days , but it is always running. I am using Oneiric on it for utility purposes. When I checked into it early thismorning it was very sluggish and almost non-responsive. The culprit was firefox taking up almost 600Mibs of RAM (and a large chunk of swap was being used also) . I created a post here about ff with Raring. I'll see if I can dig it up.

    I am NOT saying that it is firefox , but , from what I have seen, it appears that there is something there.

    Did you check that out ? Are you using ff?

    *edit*

    Whoops .. ok .. just seen where you said you are no using any apps.
    Last edited by ventrical; November 26th, 2012 at 03:54 PM.
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    Re: New Memory Leakage?

    Quote Originally Posted by Milos_SD View Post
    It is not used by any app/process. It is a bug with incorrect NR_FREE_PAGES accounting. It is fixed in new 3.7-rc7 kernel.

    http://git.kernel.org/?p=linux/kerne...18ee0dc24c3386
    You're right...
    Code:
    :~$ uname -a
    Linux ********* 3.7.0-999-generic #201211260421 SMP Mon Nov 26 09:21:51 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux
    :~$ free -m
                 total       used       free     shared    buffers     cached
    Mem:          3954       1250       2703          0         56        696
    -/+ buffers/cache:        497       3456
    Swap:         4093          0       4093
    :~$ uname -a
    Linux ********* 3.7.0-030700rc7-generic #201211252135 SMP Mon Nov 26 02:35:53 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux
    :~$ free -m
                 total       used       free     shared    buffers     cached
    Mem:          3954        980       2974          0         42        626
    -/+ buffers/cache:        311       3642
    Swap:         4093          0       4093
    Last edited by zika; November 27th, 2012 at 05:02 PM.

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