linux-kernel - Re: Glibc recvmsg from kernel netlink socket hangs forever

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Message-Id: <368A90AB-8181-4C13-B5EA-B9378CA4C71B@gmail.com>
Date:	Mon, 5 Oct 2015 16:26:04 -0700
From:	Steven Schlansker <stevenschlansker@...il.com>
To:	Guenter Roeck <linux@...ck-us.net>
Cc:	Herbert Xu <herbert@...dor.apana.org.au>,
	linux-kernel@...r.kernel.org, Eric Dumazet <edumazet@...gle.com>,
	netdev@...r.kernel.org
Subject: Re: Glibc recvmsg from kernel netlink socket hangs forever


On Sep 25, 2015, at 7:58 PM, Guenter Roeck <linux@...ck-us.net> wrote:

> On 09/25/2015 02:37 PM, Steven Schlansker wrote:
>> 
>> 
>> Thank you for the patches to try, I'll build a kernel with them early next week
>> and report back.  It sounds like it may not match my problem exactly so we'll
>> see.
>> 
> 
> For 4.0.x, you _really_ need to update to 4.0.9 to get the following two patches.
> 
> cf8befcc1a55 netlink: Disable insertions/removals during rehash
> 18889a4315a5 netlink: Reset portid after netlink_insert failure

Hi Guenter,

Thank you very much for the information.  We upgraded to 4.0.9 and all indications are that
the issue is gone.  I will follow up if that is not the case.

Thank you everyone for your guidance.

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