From: Andrew Morton <akpm@zip.com.au>
To: Mike Fedyk <mfedyk@matchmail.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Memory accounting problem in 2.4.13, 2.4.14pre, and possibly 2.4.14
Date: Wed, 07 Nov 2001 21:00:26 -0800 [thread overview]
Message-ID: <3BEA116A.646B9159@zip.com.au> (raw)
In-Reply-To: <20011106140335.A13678@mikef-linux.matchmail.com> <3BE9E9A7.6F90C4DB@zip.com.au>, <3BE9E9A7.6F90C4DB@zip.com.au> <20011107182442.B467@mikef-linux.matchmail.com>
Mike Fedyk wrote:
>
> >
>
> I am running unpatched 2.4.14 now.
>
> Do you still want me to try this patch now that you know I have been able to
> see the problem with 2.2.14+ext3?
>
It's OK - I can reproduce it easily anyway.
There are two things here. Recent -ac kernels had a merge
bug down in the /proc code which caused `Cached:' to go
negative. It was recently fixed.
And quite independently, current ext3 for Linus kernels now has a
bug which causes the `buffermem_pages' number to get too large.
This has the exact same effect: `Cached:' goes negative.
The buffermem_pages counter is purely for reporting - no VM decisions
are based on its value. But if it worries you, just remove line 1933 of fs/jbd/transaction.c.
next prev parent reply other threads:[~2001-11-08 5:05 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-11-06 22:03 Memory accounting problem in 2.4.13, 2.4.14pre, and possibly 2.4.14 Mike Fedyk
2001-11-07 21:36 ` Mike Fedyk
2001-11-08 1:30 ` Mike Fedyk
2001-11-08 2:10 ` Andrew Morton
2001-11-08 2:24 ` Mike Fedyk
2001-11-08 5:00 ` Andrew Morton [this message]
2001-11-08 6:47 ` Mike Fedyk
2001-11-08 14:41 ` James Bourne
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