From: Catalin Marinas <catalin.marinas@arm.com>
To: Nathan Royce <nroycea+kernel@gmail.com>
Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: kmemleak: Cannot allocate a kmemleak_object structure - Kernel 4.19.13
Date: Mon, 7 Jan 2019 09:52:30 +0000 [thread overview]
Message-ID: <20190107095229.uvfuxpglreibxlo4@mbp> (raw)
In-Reply-To: <CALaQ_hpCKoLxp-0cgxw9TqPGBSzY7RhrnFZ0jGAQ11HbOZkZ3w@mail.gmail.com>
Hi Nathan,
On Tue, Jan 01, 2019 at 01:17:06PM -0600, Nathan Royce wrote:
> I had a leak somewhere and I was directed to look into SUnreclaim
> which was 5.5 GB after an uptime of a little over 1 month on an 8 GB
> system. kmalloc-2048 was a problem.
> I just had enough and needed to find out the cause for my lagging system.
>
> I finally upgraded from 4.18.16 to 4.19.13 and enabled kmemleak to
> hunt for the culprit. I don't think a day had elapsed before kmemleak
> crashed and disabled itself.
Under memory pressure, kmemleak may fail to allocate memory. See this
patch for an attempt to slightly improve things but it's not a proper
solution:
http://lkml.kernel.org/r/20190102180619.12392-1-cai@lca.pw
--
Catalin
next prev parent reply other threads:[~2019-01-07 9:52 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-01 19:17 kmemleak: Cannot allocate a kmemleak_object structure - Kernel 4.19.13 Nathan Royce
2019-01-02 1:04 ` Nathan Royce
2019-01-06 19:17 ` Nathan Royce
2019-01-07 9:52 ` Catalin Marinas [this message]
2019-01-09 4:04 ` Nathan Royce
2019-01-11 7:05 ` Nathan Royce
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