Losing network connection

jroch74 · 12. Juni 2015

If it can help, I have experienced a very strange bug

During a file transfer from one of my Windows Laptop over SMB/CIFS, the NAS goes down for reboot and after this, he was completely unreachable over network
ifconfig tells me that the NAS have the right IP adress but ping local and external from NAS and from network to NAS don't work
I've tried a lot of commands, network configurations, I have rebooted the NAS ~10 times and I have loosed approximatively 5 hours of my time to find the solution

Just shutdown the NAS, switch off the power supply, wait 30 seconds and switch on ...

Stupid NIC

tekkb · 12. Juni 2015

I've had problems with Realtek NICs like this when there is a driver issue. I've also had crashes during transfers when using ECC ram on systems and there is corrupt data being sent.

jroch74 · 12. Juni 2015

Thanks for the details !

My NIC is "RTL8111/8168B" with r8169 driver, I will blacklist him and use another one to be sure

tekkb · 12. Juni 2015

I effing hate realteks.

jroch74 · 13. Juni 2015

I think I will think like you very soon (new NIC crash ...)

jroch74 · 13. Juni 2015

Code

02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 0c)
        Subsystem: Micro-Star International Co., Ltd. Device 7850
        Flags: bus master, fast devsel, latency 0, IRQ 40
        I/O ports at e000 [size=256]
        Memory at f7d00000 (64-bit, non-prefetchable) [size=4K]
        Memory at f0000000 (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 01-00-00-00-68-4c-e0-00
        Capabilities: [170] Latency Tolerance Reporting
        Kernel driver in use: r8168

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Goodbye r8169

Jetzt mitmachen!