linux-kernel - e1000e regression

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Message-ID: <171f0c61-73a2-81c2-5c8a-7c140f548803@mni.thm.de>
Date:   Fri, 4 Oct 2019 12:34:17 +0200
From:   Tobias Klausmann <tobias.johannes.klausmann@....thm.de>
To:     kai.heng.feng@...onical.com, jeffrey.t.kirsher@...el.com,
        intel-wired-lan@...ts.osuosl.org, linux-kernel@...r.kernel.org
Cc:     tobias.klausmann@...enet.de
Subject: e1000e regression - 5.4rc1

Hello all,

While testing the 5.4rc1 release, i noticed my Ethernet never coming 
fully up, seemingly having a timeout problem. While bisecting this i 
landed at the commit dee23594d587386e9fda76732aa5f5a487709510 ("e1000e: 
Make speed detection on hotplugging cable more reliable") as the first 
bad commit. And indeed just reverting the commit on top of 5.4rc1 
resolves the problem. Let me know if you have further questions, or 
patches to test!

Greetings,

Tobias

lspci:

00:19.0 Ethernet controller: Intel Corporation 82579V Gigabit Network 
Connection (rev 06)
         DeviceName:  Onboard LAN
         Subsystem: ASUSTeK Computer Inc. P8P67 Deluxe Motherboard
         Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- 
ParErr- Stepping- SERR- FastB2B- DisINTx+
         Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- 
<TAbort- <MAbort- >SERR- <PERR- INTx-
         Latency: 0
         Interrupt: pin A routed to IRQ 56
         Region 0: Memory at fbf00000 (32-bit, non-prefetchable) [size=128K]
         Region 1: Memory at fbf28000 (32-bit, non-prefetchable) [size=4K]
         Region 2: I/O ports at f040 [size=32]
         Capabilities: [c8] Power Management version 2
                 Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA 
PME(D0+,D1-,D2-,D3hot+,D3cold+)
                 Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=1 PME-
         Capabilities: [d0] MSI: Enable+ Count=1/1 Maskable- 64bit+
                 Address: 00000000fee00698  Data: 0000
         Capabilities: [e0] PCI Advanced Features
                 AFCap: TP+ FLR+
                 AFCtrl: FLR-
                 AFStatus: TP-
         Kernel driver in use: e1000e
         Kernel modules: e1000e