From: Florian Westphal <fw@strlen.de>
To: Jakub Kicinski <kuba@kernel.org>
Cc: Alexander Kuznetsov <wwfq@yandex-team.ru>,
netdev@vger.kernel.org, zeil@yandex-team.ru
Subject: Re: [PATCH] ipv6: enable net.ipv6.route sysctls in network namespace
Date: Tue, 21 Sep 2021 17:32:03 +0200 [thread overview]
Message-ID: <20210921153203.GK15906@breakpoint.cc> (raw)
In-Reply-To: <20210921060909.380179f0@kicinski-fedora-pc1c0hjn.dhcp.thefacebook.com>
Jakub Kicinski <kuba@kernel.org> wrote:
> On Tue, 21 Sep 2021 09:22:04 +0300 Alexander Kuznetsov wrote:
> > We want to increase route cache size in network namespace
> > created with user namespace. Currently ipv6 route settings
> > are disabled for non-initial network namespaces.
> > Since routes are per network namespace it is safe
> > to enable these sysctls.
Are routes accounted towards memcg or something like that?
Otherwise userns could start eating up memory by cranking the limit
up to 11 and just adds a gazillion routes?
next prev parent reply other threads:[~2021-09-21 15:32 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-21 6:22 [PATCH] ipv6: enable net.ipv6.route sysctls in network namespace Alexander Kuznetsov
2021-09-21 13:09 ` Jakub Kicinski
2021-09-21 15:32 ` Florian Westphal [this message]
2021-09-25 15:25 ` David Ahern
2021-09-30 8:44 ` Alexander Al. Kuznetsov
2021-09-30 14:59 ` Eric W. Biederman
-- strict thread matches above, loose matches on Subject: below --
2021-09-09 11:14 Alexander Kuznetsov
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