Date: Wed, 30 Jun 2004 09:19:53 +0200
From: Ingo Molnar <mingo@elte.hu>
To: Norbert Preining <preining@logic.at>
Cc: Arjan van de Ven <arjanv@redhat.com>, EdHamrick@aol.com,
       Andrew Morton <akpm@osdl.org>, linux-kernel@vger.kernel.org
Subject: Re: 2.6.7-mm2, mmaps rework, buggy apps, setarch
Message-ID: <20040630071953.GA21159@elte.hu>
References: <20040625082243.GA11515@gamma.logic.tuwien.ac.at> <20040625013508.70e6d689.akpm@osdl.org> <20040625103326.GA21814@gamma.logic.tuwien.ac.at> <20040625104449.GC20954@devserv.devel.redhat.com> <20040625082243.GA11515@gamma.logic.tuwien.ac.at> <20040625013508.70e6d689.akpm@osdl.org> <20040625103326.GA21814@gamma.logic.tuwien.ac.at> <20040625104317.GB20954@devserv.devel.redhat.com> <20040625204702.GA22859@gamma.logic.tuwien.ac.at> <20040630071035.GC28214@gamma.logic.tuwien.ac.at>
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* Norbert Preining <preining@logic.at> wrote:

> Hi All!
> 
> Just wanted to say that with 2.6.7-mm4 the problem is gone. I don't
> know which changes have been made to mm3/mm4 but now vuescan works
> again without any problem.

there was a bug in the first iteration of the flexible-mmap patch,
introduced during a cleanup of the patch. The bug resulted in the VM
throwing -ENOMEM's after the first ~3GB worth of mmap()s are done. So if
an app did lots of repeat mmap()/munmap()s [like vuescan most likely],
it would 'run out of memory' while there's still plenty of free VM left. 

This bug is fixed in the current flexible-mmap patch included in -mm4.

> Thanks a lot for your patience!

you are welcome!

	Ingo
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