From: David Ahern <dsahern@gmail.com>
To: Ben Greear <greearb@candelatech.com>, netdev <netdev@vger.kernel.org>
Subject: Re: VRF and/or cgroups problem on Fedora-30, 5.2.21+ kernel
Date: Fri, 22 Nov 2019 17:06:59 -0700 [thread overview]
Message-ID: <850a6d4e-3a67-a389-04a0-87032e0683d8@gmail.com> (raw)
In-Reply-To: <05276b67-406b-2744-dd7c-9bda845a5bb1@candelatech.com>
On 11/22/19 5:03 PM, Ben Greear wrote:
> Hello,
>
> We see a problem on a particular system when trying to run 'ip vrf exec
> _vrf1 ping 1.1.1.1'.
> This system reproduces the problem all the time, but other systems with
> exact same (as far as
> we can tell) software may fail occasionally, but then it will work again.
>
> Here is an strace output. I changed to the
> "/sys/fs/cgroup/unified/user.slice/user-1000.slice/session-2.scope/vrf/_vrf1"
>
> directory as root user, and could view the files in that directory, so
> I'm not sure why the strace shows error 5.
>
> Any idea what could be the problem and/or how to fix it or debug further?
>
>
> This command was run as root user.
check 'ulimit -l'. BPF is used to set the VRF and it requires locked memory.
next prev parent reply other threads:[~2019-11-23 0:07 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-23 0:03 VRF and/or cgroups problem on Fedora-30, 5.2.21+ kernel Ben Greear
2019-11-23 0:06 ` David Ahern [this message]
2019-11-23 0:14 ` Ben Greear
2019-11-23 0:17 ` David Ahern
2019-11-23 0:23 ` Ben Greear
2019-11-23 18:10 ` David Ahern
2019-11-25 17:35 ` Ben Greear
2019-11-25 20:53 ` David Ahern
2019-11-26 8:48 ` Toke Høiland-Jørgensen
2019-11-26 17:36 ` Ben Greear
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