Description of problem: I have a server which was running fine for few years. Just recently I upgraded from 3.15.fc20 kernel to 3.17.0-301.fc21.x86_64. Network link started to disappear for about 1.5 second quit often: [ +15.068178] lan: port 1(enp4s0) entered forwarding state [ +42.742248] r8169 0000:04:00.0 enp4s0: link down [ +0.000074] lan: port 1(enp4s0) entered disabled state [ +0.015630] r8169 0000:05:00.0 enp5s0: link down [Oct12 19:40] r8169 0000:05:00.0 enp5s0: link up [ +0.766097] r8169 0000:04:00.0 enp4s0: link up [ +0.000817] lan: port 1(enp4s0) entered forwarding state [ +0.000030] lan: port 1(enp4s0) entered forwarding state [ +15.069108] lan: port 1(enp4s0) entered forwarding state [Oct12 20:03] r8169 0000:04:00.0 enp4s0: link down [ +0.000041] lan: port 1(enp4s0) entered disabled state [ +0.018891] r8169 0000:05:00.0 enp5s0: link down [ +1.680367] r8169 0000:05:00.0 enp5s0: link up [ +0.683707] r8169 0000:04:00.0 enp4s0: link up [ +0.000815] lan: port 1(enp4s0) entered forwarding state [ +0.000027] lan: port 1(enp4s0) entered forwarding state [ +15.054925] lan: port 1(enp4s0) entered forwarding state [Oct12 20:04] r8169 0000:04:00.0 enp4s0: link down [ +0.000065] lan: port 1(enp4s0) entered disabled state [ +0.019015] r8169 0000:05:00.0 enp5s0: link down [ +1.563941] r8169 0000:05:00.0 enp5s0: link up [ +0.802048] r8169 0000:04:00.0 enp4s0: link up [ +0.000815] lan: port 1(enp4s0) entered forwarding state [ +0.000027] lan: port 1(enp4s0) entered forwarding state [ +15.037151] lan: port 1(enp4s0) entered forwarding state [Oct12 20:44] r8169 0000:04:00.0 enp4s0: link down [ +0.000036] lan: port 1(enp4s0) entered disabled state [ +0.020844] r8169 0000:05:00.0 enp5s0: link down [ +1.552440] r8169 0000:05:00.0 enp5s0: link up [ +0.809583] r8169 0000:04:00.0 enp4s0: link up [ +0.000822] lan: port 1(enp4s0) entered forwarding state [ +0.000030] lan: port 1(enp4s0) entered forwarding state [ +15.060190] lan: port 1(enp4s0) entered forwarding state [Oct12 20:45] r8169 0000:04:00.0 enp4s0: link down [ +0.000071] lan: port 1(enp4s0) entered disabled state [ +0.011174] r8169 0000:05:00.0 enp5s0: link down [ +1.729399] r8169 0000:05:00.0 enp5s0: link up [ +0.603090] r8169 0000:04:00.0 enp4s0: link up [ +0.000823] lan: port 1(enp4s0) entered forwarding state [ +0.000025] lan: port 1(enp4s0) entered forwarding state [ +15.035722] lan: port 1(enp4s0) entered forwarding state [ +22.729866] r8169 0000:04:00.0 enp4s0: link down [ +0.000054] lan: port 1(enp4s0) entered disabled state [ +0.016777] r8169 0000:05:00.0 enp5s0: link down [ +1.568851] r8169 0000:05:00.0 enp5s0: link up [ +0.777867] r8169 0000:04:00.0 enp4s0: link up [ +0.000830] lan: port 1(enp4s0) entered forwarding state [ +0.000027] lan: port 1(enp4s0) entered forwarding state [Oct12 20:46] lan: port 1(enp4s0) entered forwarding state [Oct12 20:49] r8169 0000:04:00.0 enp4s0: link down [ +0.000075] lan: port 1(enp4s0) entered disabled state enp4s0 is connected to gigabit switch enp5s0 is connected to fast ethernet switch 04:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 06) Subsystem: Elitegroup Computer Systems Device 811e Flags: bus master, fast devsel, latency 0, IRQ 30 I/O ports at e000 [size=256] Memory at d0104000 (64-bit, prefetchable) [size=4K] Memory at d0100000 (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: [140] Virtual Channel Capabilities: [160] Device Serial Number f8-0a-00-00-68-4c-e0-00 Kernel driver in use: r8169 Kernel modules: r8169 05:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 06) Subsystem: Elitegroup Computer Systems Device 811e Flags: bus master, fast devsel, latency 0, IRQ 31 I/O ports at d000 [size=256] Memory at d0004000 (64-bit, prefetchable) [size=4K] Memory at d0000000 (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: [140] Virtual Channel Capabilities: [160] Device Serial Number f9-0a-00-00-68-4c-e0-00 Kernel driver in use: r8169 Kernel modules: r8169 Settings for enp4s0: Supported ports: [ TP MII ] Supported link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Half 1000baseT/Full Supported pause frame use: No Supports auto-negotiation: Yes Advertised link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Half 1000baseT/Full Advertised pause frame use: Symmetric Receive-only Advertised auto-negotiation: Yes Link partner advertised link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Half 1000baseT/Full Link partner advertised pause frame use: Symmetric Receive-only Link partner advertised auto-negotiation: Yes Speed: 1000Mb/s Duplex: Full Port: MII PHYAD: 0 Transceiver: internal Auto-negotiation: on Supports Wake-on: pumbg Wake-on: g Current message level: 0x00000033 (51) drv probe ifdown ifup Link detected: yes Settings for enp5s0: Supported ports: [ TP MII ] Supported link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Half 1000baseT/Full Supported pause frame use: No Supports auto-negotiation: Yes Advertised link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Half 1000baseT/Full Advertised pause frame use: Symmetric Receive-only Advertised auto-negotiation: Yes Link partner advertised link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full Link partner advertised pause frame use: No Link partner advertised auto-negotiation: Yes Speed: 100Mb/s Duplex: Full Port: MII PHYAD: 0 Transceiver: internal Auto-negotiation: on Supports Wake-on: pumbg Wake-on: g Current message level: 0x00000033 (51) drv probe ifdown ifup Link detected: yes Version-Release number of selected component (if applicable): kernel-3.17.0-301.fc21.x86_64 How reproducible: Steps to Reproduce: 1. 2. 3. Actual results: Expected results:
Still the problem with 3.17.1-302.fc21.x86_64
*********** MASS BUG UPDATE ************** We apologize for the inconvenience. There are a large number of bugs to go through and several of them have gone stale. Due to this, we are doing a mass bug update across all of the Fedora 21 kernel bugs. Fedora 21 has now been rebased to 3.18.3-201.fc21. Please test this kernel update (or newer) and let us know if you issue has been resolved or if it is still present with the newer kernel. If you experience different issues, please open a new bug report for those.
*********** MASS BUG UPDATE ************** This bug is being closed with INSUFFICIENT_DATA as there has not been a response in over 3 weeks. If you are still experiencing this issue, please reopen and attach the relevant data from the latest kernel you are running and any data that might have been requested previously.