linux-kernel - Re: 3.12: ethernet controller missing after resuming from suspend to RAM

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Date:	Thu, 12 Dec 2013 18:43:03 +0100
From:	Francis Moreau <francis.moro@...il.com>
To:	"Rafael J. Wysocki" <rjw@...ysocki.net>
CC:	LKML <linux-kernel@...r.kernel.org>,
	Linux PM list <linux-pm@...r.kernel.org>
Subject: Re: 3.12: ethernet controller missing after resuming from suspend
 to RAM

Hi Rafael,

On 12/12/2013 03:57 PM, Rafael J. Wysocki wrote:
> On Thursday, December 12, 2013 09:00:01 AM Francis Moreau wrote:
>> Hello,
>>
>> I'm encountering an issue after resuming my system from suspend to RAM:
>> my ethernet controller is missing, it seems that the kernel doesn't see
>> it anymore. It's missing from /sys/class/net.
>>
>> Before suspending, this is what lspci gives.
>>
>> 03:00.2 Ethernet controller: Realtek Semiconductor Co., Ltd.
>> RTL8111/8168 PCI Express Gigabit Ethernet controller (rev 0a)
>>         Subsystem: CLEVO/KAPOK Computer Device 0540
>>         Flags: bus master, fast devsel, latency 0, IRQ 46
>>         I/O ports at e000 [size=256]
>>         Memory at f0a04000 (64-bit, prefetchable) [size=4K]
>>         Memory at f0a00000 (64-bit, prefetchable) [size=16K]
>>         Capabilities: [40] Power Management version 3
>>         Capabilities: [50] MSI: Enable+ Count=1/1 Maskable- 64bit+
>>         Capabilities: [70] Express Endpoint, MSI 01
>>         Capabilities: [b0] MSI-X: Enable- Count=4 Masked-
>>         Capabilities: [d0] Vital Product Data
>>         Capabilities: [100] Advanced Error Reporting
>>         Capabilities: [160] Device Serial Number 02-00-00-00-68-4c-e0-00
>>         Kernel driver in use: r8169
>>         Kernel modules: r8169
>>
>> I can't see anything obvious in dmesg.
> 
> Please send a dmesg output including the first suspend-resume cycle
> after a fresh boot (the one when you lose the NIC).

Here it is.

Actually I can see this now:

[   42.400974] r8169 0000:03:00.2: System wakeup disabled by ACPI

Thanks



View attachment "dmesg" of type "text/plain" (69562 bytes)