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Message-ID: <20130216022043.65d5c940@skate> Date: Sat, 16 Feb 2013 02:20:43 +0100 From: Thomas Petazzoni <thomas.petazzoni@...e-electrons.com> To: Eric Dumazet <eric.dumazet@...il.com> Cc: Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>, linux-arm-kernel@...ts.infradead.org, "yrl.pp-manager.tt@...achi.com" <yrl.pp-manager.tt@...achi.com>, linux-kernel <linux-kernel@...r.kernel.org>, "David S. Miller" <davem@...emloft.net>, netdev <netdev@...r.kernel.org> Subject: Re: [BUG arm-soc] mvneta: tx queue done sometimes causes kernel panic Hello, On Fri, 15 Feb 2013 08:52:12 -0800, Eric Dumazet wrote: > Driver is buggy, as TX completion can happen both from ndo_start_xmit() > and a timer, and there is no spinlock or appropriate synchro. Yes, it is a known issue. I did post a patch fixing the problem on netdev@ a while ago [1], but while it was fixing the problem, it wasn't considered the right approach. Being busy with other Marvell Armada 370/XP developments, I haven't yet had the time to investigate the issue again. [1] https://patchwork.kernel.org/patch/1941601/ Best regards, Thomas -- Thomas Petazzoni, Free Electrons Kernel, drivers, real-time and embedded Linux development, consulting, training and support. http://free-electrons.com -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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