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Date: Thu, 30 Nov 2017 19:32:04 +0000 From: bugzilla-dae...@bugzilla.kernel.org To: step...@networkplumber.org Subject: [Bug 198047] New: Regression in e1000e with kernel 4.14.3 https://bugzilla.kernel.org/show_bug.cgi?id=198047 Bug ID: 198047 Summary: Regression in e1000e with kernel 4.14.3 Product: Networking Version: 2.5 Kernel Version: 4.14.3 Hardware: x86-64 OS: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: Other Assignee: step...@networkplumber.org Reporter: rwar...@gmx.de Regression: No Created attachment 260963 --> https://bugzilla.kernel.org/attachment.cgi?id=260963&action=edit screenshot network manager I got a regression with my network interface e1000e. With kernel 4.14.3 and Fedora 27 the network interface e1000e doesn't come up if I set MTU to 1492 and boot with that settings. with MTU set to auto sometimes the interface is active and sometimes not. In network manager (Fedora 27) the button to activate/deactivate the network interface is greyed out. Computers backside network LED'S are off. there are no errors in the logs nor selinux issues, ... up to 4.13.2 all kernels from 4.13 series I got no errors. how can I debug this ? Maybe from interest: with the late Fedora 27 Beta (I believe kernel 4.12.x) I remember issues switching interface MTU from auto to 1492. lspci: ===== 00:1f.6 Ethernet controller: Intel Corporation Ethernet Connection (2) I219-V Subsystem: Micro-Star International Co., Ltd. [MSI] Device 7a72 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- Interrupt: pin A routed to IRQ 123 Region 0: Memory at df100000 (32-bit, non-prefetchable) [disabled] [size=128K] Capabilities: <access denied> Kernel driver in use: e1000e dmesg | grep -iE 'eth|enp0s31f6': ================================ [ 1.255886] e1000e 0000:00:1f.6 eth0: (PCI Express:2.5GT/s:Width x1) 4c:cc:6a:bc:8c:a2 [ 1.255889] e1000e 0000:00:1f.6 eth0: Intel(R) PRO/1000 Network Connection [ 1.256032] e1000e 0000:00:1f.6 eth0: MAC: 12, PHY: 12, PBA No: FFFFFF-0FF [ 1.495646] e1000e 0000:00:1f.6 enp0s31f6: renamed from eth0 [ 4.091853] e1000e 0000:00:1f.6 enp0s31f6: changing MTU from 1500 to 1492 [ 4.250990] IPv6: ADDRCONF(NETDEV_UP): enp0s31f6: link is not ready [ 4.463180] IPv6: ADDRCONF(NETDEV_UP): enp0s31f6: link is not ready nmcli connection show: ===================== NAME UUID TYPE DEVICE Profile 1 0e0cc197-be48-43a7-83d8-423ee89a448e 802-3-ethernet -- -- You are receiving this mail because: You are the assignee for the bug.