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[204.195.96.226]) by smtp.gmail.com with ESMTPSA id 41be03b00d2f7-acec0a66c20sm1664099a12.77.2025.01.30.17.21.16 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 30 Jan 2025 17:21:17 -0800 (PST) Date: Thu, 30 Jan 2025 17:21:15 -0800 From: Stephen Hemminger To: "Lifshits, Vitaly" Cc: , , Message-ID: <20250130172115.2a116ccb@hermes.local> In-Reply-To: <531227ca-89fe-4398-8cba-3647be509454@intel.com> References: <20250130091111.46358882@hermes.local> <531227ca-89fe-4398-8cba-3647be509454@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Mailman-Original-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=networkplumber-org.20230601.gappssmtp.com; s=20230601; t=1738286477; x=1738891277; darn=lists.osuosl.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:subject:cc:to:from:date:from:to:cc:subject:date :message-id:reply-to; bh=zwy8OaLg+jW6HTcFdBmXuAr0Z8KbOURLmkSpTBHi2us=; b=aQlCCx522aHM7CfS6F2K2dtWjXUuTGgwejJhKuez/aBfpoHCNzS2cywAG3vDtd+Qyv V7hIsIySL4eJjK6rUQe+GZfDQijjPf/6AadWMJx64SducMHRFk5i1iaaK/AKHZoMkMVH 8QoFShmNp0A5ElpmGvF3JykUN+J3/CvtYbFDaEdE9IJazh6ag4ooML2dkQwQWuROTpuS kngGR7Q8MGOxaOBrPD6qYXdoJjI6oaBZr9L9Zp072Q13Q1o4x1kxiMw3R2DEsW0Mmh2o kKNmkjZLDSeHx8AWySSseOvR/BHKyowXXw7AZDXQ/A1JMWycyfd0ExOeNdQqRHevELea 5NCg== X-Mailman-Original-Authentication-Results: smtp4.osuosl.org; dmarc=pass (p=quarantine dis=none) header.from=networkplumber.org X-Mailman-Original-Authentication-Results: smtp4.osuosl.org; dkim=pass (2048-bit key, unprotected) header.d=networkplumber-org.20230601.gappssmtp.com header.i=@networkplumber-org.20230601.gappssmtp.com header.a=rsa-sha256 header.s=20230601 header.b=aQlCCx52 Subject: Re: [Intel-wired-lan] suspend/resume broken of igc driver broken on 6.12 X-BeenThere: intel-wired-lan@osuosl.org X-Mailman-Version: 2.1.30 Precedence: list List-Id: Intel Wired Ethernet Linux Kernel Driver Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-wired-lan-bounces@osuosl.org Sender: "Intel-wired-lan" On Thu, 30 Jan 2025 21:17:30 +0200 "Lifshits, Vitaly" wrote: > On 1/30/2025 7:11 PM, Stephen Hemminger wrote: > > I am using: > > > > 5a:00.0 Ethernet controller: Intel Corporation Ethernet Controller I226-LM (rev 04) > > Subsystem: Intel Corporation Device 0000 > > Flags: bus master, fast devsel, latency 0, IRQ 19, IOMMU group 20 > > Memory at 6c500000 (32-bit, non-prefetchable) [size=1M] > > Memory at 6c600000 (32-bit, non-prefetchable) [size=16K] > > Capabilities: [40] Power Management version 3 > > Capabilities: [50] MSI: Enable- Count=1/1 Maskable+ 64bit+ > > Capabilities: [70] MSI-X: Enable+ Count=5 Masked- > > Capabilities: [a0] Express Endpoint, IntMsgNum 0 > > Capabilities: [100] Advanced Error Reporting > > Capabilities: [140] Device Serial Number 58-47-ca-ff-ff-7a-98-3d > > Capabilities: [1c0] Latency Tolerance Reporting > > Capabilities: [1f0] Precision Time Measurement > > Capabilities: [1e0] L1 PM Substates > > Kernel driver in use: igc > > Kernel modules: igc > > > > > > Using both Debian testing and my own kernel built from 6.12, the igc > > driver appears broken after resume. > > From which system state are you resuming? > > > > > After resuming the device is down and no address present. > > Attempts to set link up manually fail. > > Did you get any errors in the dmesg log? > What is the firmware version on your device (you can get it by running > ethtool -i)? > > > If I do rmmod/modprobe of igc it comes back. > > > > Doing a bit of bisectting but it is slow going. > > Meanwhile, we'll also try to reproduce this issue in our lab. Could you > share more details about your system so we can create a similar setup? Given that error reported is -ENODEV, might be a generic netdev problem not just for igc device.