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From: Julia Lawall <julia.lawall@lip6.fr>
To: "Ruslan N. Marchenko" <me@ruff.mobi>
Cc: linux-kernel@vger.kernel.org, Julia Lawall <Julia.Lawall@lip6.fr>
Subject: Re: [BUG] Regression in 2fdac010 drivers/net/ethernet/via/via-velocity.c: update napi implementation
Date: Mon, 30 Sep 2013 13:54:06 +0200 (CEST)	[thread overview]
Message-ID: <alpine.DEB.2.02.1309301353150.2036@localhost6.localdomain6> (raw)
In-Reply-To: <20130930071531.GA13037@ruff.mobi>

On Mon, 30 Sep 2013, Ruslan N. Marchenko wrote:

> Hi Julia et al.,
> 
> With this commit VIA NANO board get CPU lockup in random places on any network activity.
> The error is random, most of the times dead locked CPU on boot.
> 
> After loading via-velocity module it hangs for a while and then spits kernel mesages
> about hanged tasks from varios places - like ata, rcu_preempt or network stack.
> Also, if you boot the box with network disconnected - it works, until you plug the network cable.
> 
> On some kernel builds (like ubuntu stock) behaviour varies, sometimes the box itself works,
> but network stack dies after multiple ICMPv6 skb errors, so box ends up with network disconnected.
> Reloading network susbsys helps to recover for some time (depending on how fast eth led is blinking).
> 
> Reverting the patch allows me to boot without problems even from latest Linus trunk and send this mail.

You can find the discussion and improved patch in this thread:

http://www.spinics.net/lists/netdev/msg251287.html
Bug - regression - Via velocity interface coming up freezes kernel
From: Dirk Kraft <dirk.kraft@xxxxxxxxx>
Date: Sun, 22 Sep 2013 19:28:52 +0200

julia




> 
> Regards,
> Ruslan
> 

  parent reply	other threads:[~2013-09-30 11:54 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-09-30  7:15 Ruslan N. Marchenko
2013-09-30 11:43 ` Julia Lawall
2013-10-01 22:45   ` Francois Romieu
2013-09-30 11:54 ` Julia Lawall [this message]
2013-09-30 13:54   ` Ruslan N. Marchenko
2013-10-01  6:29     ` Ruslan N. Marchenko

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