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Fri, 13 Sep 2024 07:02:20 +0000 Message-ID: <656a4613-9b31-d64b-fc78-32f6dfdc96e9@intel.com> Date: Fri, 13 Sep 2024 10:02:20 +0300 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Thunderbird/102.15.1 Subject: Re: [Intel-wired-lan] igc: Network failure, reboot required: igc: Failed to read reg 0xc030! Content-Language: en-US To: Jesper Juhl , Jakub Kicinski CC: , , Eric Dumazet , Tony Nguyen , "Przemek Kitszel" , , Paolo Abeni , "David S. 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It may be helpful >> to figure out which line of code this is: >> >> igc_update_stats+0x8a/0x6d0 [igc >> 22e0a697bfd5a86bd5c20d279bfffd >> 131de6bb32] > > Of course. Just tell me what to do. > > - Jesper > > On Thu, 12 Sept 2024 at 17:37, Jakub Kicinski wrote: >> >> On Thu, 12 Sep 2024 15:03:14 +0200 Jesper Juhl wrote: >>> It just happened again. >>> Same error message, but different stacktrace: >> >> Hm, I wonder if it's power management related or the device just goes >> sideways for other reasons. The crashes are in accessing statistics >> and the relevant function doesn't resume the device. But then again, >> it could just be that stats reading is the most common control path >> operation. >> >> Hopefully the Intel team can help. >> >> Would you be able to decode the stack trace? It may be helpful >> to figure out which line of code this is: >> >> igc_update_stats+0x8a/0x6d0 [igc >> 22e0a697bfd5a86bd5c20d279bfffd131de6bb32] Hi Jasper, I agree with Kuba that it might be related to power management, and I wonder if it can be related to PTM. Anyway, can you please share the following information? 1. Is runtime D3 enabled? (you can check the value in /sys/devices/pci:(pci SBDF)/power/control) 2. What is the NVM version that your NIC has? (ethtool -i eno1) 3. Can you please elaborate on you bug? Does it happen while the system is in idle state? Does it run any traffic? What is the system's link partner (switch? other NIC?)