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Date:   Wed, 13 Sep 2023 10:10:57 +0200
From:   Greg KH <gregkh@linuxfoundation.org>
To:     Quan Tian <qtian@vmware.com>
Cc:     stable@vger.kernel.org
Subject: Re: IPv6 traffic distribution problem with OVS group on 6.5
Message-ID: <2023091347-aspirin-lilac-6536@gregkh>
References: <20230913065407.GA510095@bm02>
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On Wed, Sep 13, 2023 at 06:54:07AM +0000, Quan Tian wrote:
> Hi,
> 
> We found that OVS group always selected the same bucket for different L4
> flows between two given IPv6 addresses on 6.5. It was because commit
> e069ba07e6c7 ("net: openvswitch: add support for l4 symmetric hashing")
> introduced support for symmetric hashing and used the flow dissector,
> which had a problem that it didn't incorporate transport ports when
> flow label is present in IPv6 header. The bug is fixed by this commit:
> 
> a5e2151ff9d5 ("net/ipv6: SKB symmetric hash should incorporate transport ports")
> 
> Could you please backport it to 6.5.y?
> 
> Issue: https://github.com/antrea-io/antrea/issues/5457

Sure, now queued up.

greg k-h