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Message-ID: <b2cdc9f30910080227s17effd97vf13d7e91b153ad17@mail.gmail.com> Date: Thu, 8 Oct 2009 10:27:10 +0100 From: Alex Bennee <kernel-hacker@...nee.com> To: Francois Romieu <romieu@...zoreil.com> Cc: lkml <linux-kernel@...r.kernel.org>, netdev@...r.kernel.org Subject: Re: r8169 ethernet hangs after a pm-suspend (and resume) 2009/9/9 Francois Romieu <romieu@...zoreil.com>: > Alex Bennee <kernel-hacker@...nee.com> : > [...] >> I've just recently gotten suspend working on my system. Unfortunately >> after the resume event I loose access to the network. >> As far as the system is concerned the network is configured properly >> but every attempt to ping local nodes fails with "Host not reachable". > > Can the problem be described as "gigabit link setting does not survive > suspend/resume" ? Even further experimentation shows that ethernet functionality can survive the resume for a few minutes before reseting. Once it gets into this state even rmmod/modprobing the r8169 driver won't unwedge the driver. The symptoms are either the driver detecting an unknown MAC or setting the physical address to 0xfffffffff which is obviously broken. I suspect the hardware has gotten itself wedged somehow. Is there any way to hard reset the chipset (without power cycling the system)? -- Alex, homepage: http://www.bennee.com/~alex/ http://www.half-llama.co.uk -- 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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