From: Stephen Hemminger <stephen@networkplumber.org>
To: Matthew Wilcox <willy@infradead.org>
Cc: netdev@vger.kernel.org, linux-mm@kvack.org
Subject: Re: tcp_bind_bucket is missing from slabinfo
Date: Sat, 24 Feb 2018 10:58:55 -0800 [thread overview]
Message-ID: <20180224105855.5ff93c2f@xeon-e3> (raw)
In-Reply-To: <20180224143520.GA22222@bombadil.infradead.org>
On Sat, 24 Feb 2018 06:35:20 -0800
Matthew Wilcox <willy@infradead.org> wrote:
> On Fri, Feb 23, 2018 at 10:50:30PM -0800, Stephen Hemminger wrote:
> > Somewhere back around 3.17 the kmem cache "tcp_bind_bucket" dropped out
> > of /proc/slabinfo. It turns out the ss command was dumpster diving
> > in slabinfo to determine the number of bound sockets and now it always
> > reports 0.
> >
> > Not sure why, the cache is still created but it doesn't
> > show in slabinfo. Could it be some part of making slab/slub common code
> > (or network namespaces). The cache is created in tcp_init but not visible.
> >
> > Any ideas?
>
> Try booting with slab_nomerge=1
Yes, thats it.
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prev parent reply other threads:[~2018-02-24 18:59 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-24 6:50 tcp_bind_bucket is missing from slabinfo Stephen Hemminger
2018-02-24 14:35 ` Matthew Wilcox
2018-02-24 18:58 ` Stephen Hemminger [this message]
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