From: David Miller <davem@davemloft.net>
To: dsa@cumulusnetworks.com
Cc: netdev@vger.kernel.org
Subject: Re: [PATCH net-next] net: vrf: Fix crash when IPv6 is disabled at boot time
Date: Thu, 09 Jun 2016 23:34:58 -0700 (PDT) [thread overview]
Message-ID: <20160609.233458.1449029966409837912.davem@davemloft.net> (raw)
In-Reply-To: <1465492860-19246-1-git-send-email-dsa@cumulusnetworks.com>
From: David Ahern <dsa@cumulusnetworks.com>
Date: Thu, 9 Jun 2016 10:21:00 -0700
> Frank Kellermann reported a kernel crash with 4.5.0 when IPv6 is
> disabled at boot using the kernel option ipv6.disable=1. Using
> current net-next with the boot option:
>
> $ ip link add red type vrf table 1001
...
> The problem above is due to the fact that the fib hash table is not
> allocated when IPv6 is disabled at boot.
>
> As for the VRF driver it should not do any IPv6 initializations if IPv6
> is disabled, so it needs to know if IPv6 is disabled at boot. The disable
> parameter is private to the IPv6 module, so provide an accessor for
> modules to determine if IPv6 was disabled at boot time.
>
> Fixes: 35402e3136634 ("net: Add IPv6 support to VRF device")
> Signed-off-by: David Ahern <dsa@cumulusnetworks.com>
Applied.
prev parent reply other threads:[~2016-06-10 6:34 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-09 17:21 [PATCH net-next] net: vrf: Fix crash when IPv6 is disabled at boot time David Ahern
2016-06-10 6:34 ` David Miller [this message]
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