Dne 17.9.2019 v 15:25 Mauricio Tavares napsal(a):
On Tue, Sep 17, 2019 at 9:11 AM Miroslav Geisselreiter <mg@xxxxxxxx> wrote:
Dne 17.9.2019 v 14:02 Mauricio Tavares napsal(a):
On Tue, Sep 17, 2019 at 7:06 AM Miroslav Geisselreiter <mg@xxxxxxxx> wrote:
I have brand new PC with this components:
CPU Intel® Pentium G5400, LGA1151
motherboard ASUS PRIME B360M-C
16 GB RAM
HDD 2x ADATA SSD 256GB XPG GAMMIX S11, PCIe Gen3x4 M.2 2280 (RAID1)
NIC Intel X550-T1 Ethernet Converged Network Adapter
I installed CentOS 7 and two NICs were detected:
eno1 (on motherboard)
enp1s0 (Intel X550-T1)
When I restart the machine sometimes enp1s0 is missing. It is not
detected during boot. It looks like NIC card is not installed / not
present. After next reboot everything is fine and I do not see any
problems with NIC card.
How can I avoid this problem with missing NIC? Can you help me, please?
Nothing exciting on dmesg? Did you check the pci chain to see if
it is being reported as there?
I do not know what you mean "check the pci chain". My knowledge of
kernel level is weak, sorry. What else can I do?
The "checking the pci chain" argument is that sometimes the card
is there but is cheerfully ignored. From
[ 1.720556] ixgbe 0000:01:00.0: irq 138 for MSI/MSI-X
You know that it is in bus 1 slot 0, so try something like
lspci -s 01:00.0 -v
to see if it reports something there. Just in the odd case the pci
side of your computer knows there is a card there but the kernel can't
be bothered (flaky driver?). I am probably not using the right
terminology, and clearly expect someone to set me right, I've had
network cards that would show in the pci chain but not in dmesg. Other
thing you want to think about is that I've had cards that only worked
if were inserted in a specific slot for no reason whatsoever.
Thank you Mauricio and Mark for fast response.
lspci -s 01:00.0 -v
01:00.0 Ethernet controller: Intel Corporation Ethernet Controller 10G
X550T (rev 01)
Subsystem: Intel Corporation Ethernet Converged Network Adapter
X550-T1
Flags: bus master, fast devsel, latency 0, IRQ 16
Memory at a0000000 (64-bit, prefetchable) [size=2M]
Memory at a0200000 (64-bit, prefetchable) [size=16K]
Expansion ROM at a2300000 [disabled] [size=512K]
Capabilities: [40] Power Management version 3
Capabilities: [50] MSI: Enable- Count=1/1 Maskable+ 64bit+
Capabilities: [70] MSI-X: Enable+ Count=64 Masked-
Capabilities: [a0] Express Endpoint, MSI 00
Capabilities: [100] Advanced Error Reporting
Capabilities: [140] Device Serial Number 9f-f8-46-ff-ff-28-00-00
Capabilities: [150] Alternative Routing-ID Interpretation (ARI)
Capabilities: [160] Single Root I/O Virtualization (SR-IOV)
Capabilities: [1a0] Transaction Processing Hints
Capabilities: [1b0] Access Control Services
Capabilities: [1c0] Latency Tolerance Reporting
Capabilities: [1d0] #19
Kernel driver in use: ixgbe
Kernel modules: ixgbe
I will check again after reboot and as Mark recommend I will reseat the
card. I will check BIOS too. As this is production machine I cannot do
that now. I am going to buy another cheaper 1 Gb Intel card for testing
purposes. I will report my results later.
Miroslav
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