Bug 235341

Summary: em(4): No network traffic after upgrade from 11.2 to 12.0-RELEASE
Product: Base System Reporter: kaan <kaan>
Component: kernAssignee: Kevin Bowling <kbowling>
Status: Open ---    
Severity: Affects Only Me CC: erj, kaan, kbowling, net
Priority: --- Keywords: IntelNetworking, needs-qa, regression
Version: 12.0-RELEASEFlags: koobs: maintainer-feedback? (kaan)
Hardware: amd64   
OS: Any   
Attachments:
Description Flags
dmesg from 11.2 none

Description kaan 2019-01-31 06:35:34 UTC
Created attachment 201549 [details]
dmesg from 11.2

After upgrade from 11.2 to 12.0 my network stop to work. Network cards get addresses but data exchange does not occur. I tried a clean install, but the situation has not changed. 
I have only 11.2 dmseg, because had to rollback quickly.
Comment 1 Eric Joyner freebsd_committer 2019-02-01 00:18:48 UTC
Unfortunately, there isn't really anything to go on here. I don't see any network-related error messages in the attached dmesg, so whatever issue you're encountering on 12 doesn't seem to exist on 11.2.

You might want to try using HEAD (like a snapshot that's post 1/30), since there have been a couple fixes to the em driver in the past couple days.
Comment 2 Kevin Bowling freebsd_committer 2021-04-21 03:13:47 UTC
(In reply to kaan from comment #0)
Do you still have this hardware?  I'd like to see pciconf -lv for the em devices, and have you retest on 12.2-RELEASE or 13.0-RELEASE.
Comment 3 kaan 2021-04-22 07:36:23 UTC
Yes, we still use this hardware, I updated it to 11.4 and I plan to migrate to version 13 but because this is a rather critical network node, we will carry out migration in the summer. 
This is the pciconf -lv output for all devices:
hostb0@pci0:0:0:0:      class=0x060000 card=0x0f318086 chip=0x0f008086 rev=0x0e           hdr=0x00
    vendor     = 'Intel Corporation'
    device     = 'Atom Processor Z36xxx/Z37xxx Series SoC Transaction Register'
    class      = bridge
    subclass   = HOST-PCI
vgapci0@pci0:0:2:0:     class=0x030000 card=0x0f318086 chip=0x0f318086 rev=0x0e           hdr=0x00
    vendor     = 'Intel Corporation'
    device     = 'Atom Processor Z36xxx/Z37xxx Series Graphics & Display'
    class      = display
    subclass   = VGA
ahci0@pci0:0:19:0:      class=0x010601 card=0x0f238086 chip=0x0f238086 rev=0x0e           hdr=0x00
    vendor     = 'Intel Corporation'
    device     = 'Atom Processor E3800 Series SATA AHCI Controller'
    class      = mass storage
    subclass   = SATA
xhci0@pci0:0:20:0:      class=0x0c0330 card=0x0f358086 chip=0x0f358086 rev=0x0e           hdr=0x00
    vendor     = 'Intel Corporation'
    device     = 'Atom Processor Z36xxx/Z37xxx, Celeron N2000 Series USB xHCI'
    class      = serial bus
    subclass   = USB
none0@pci0:0:26:0:      class=0x108000 card=0x0f188086 chip=0x0f188086 rev=0x0e           hdr=0x00
    vendor     = 'Intel Corporation'
    device     = 'Atom Processor Z36xxx/Z37xxx Series Trusted Execution Engine'
    class      = encrypt/decrypt
hdac0@pci0:0:27:0:      class=0x040300 card=0x0f048086 chip=0x0f048086 rev=0x0e           hdr=0x00
    vendor     = 'Intel Corporation'
    device     = 'Atom Processor Z36xxx/Z37xxx Series High Definition Audio Cont          roller'
    class      = multimedia
    subclass   = HDA
pcib1@pci0:0:28:0:      class=0x060400 card=0x0f488086 chip=0x0f488086 rev=0x0e           hdr=0x01
    vendor     = 'Intel Corporation'
    device     = 'Atom Processor E3800 Series PCI Express Root Port 1'
    class      = bridge
    subclass   = PCI-PCI
pcib2@pci0:0:28:1:      class=0x060400 card=0x0f4a8086 chip=0x0f4a8086 rev=0x0e           hdr=0x01
    vendor     = 'Intel Corporation'
    device     = 'Atom Processor E3800 Series PCI Express Root Port 2'
    class      = bridge
    subclass   = PCI-PCI
pcib3@pci0:0:28:2:      class=0x060400 card=0x0f4c8086 chip=0x0f4c8086 rev=0x0e           hdr=0x01
    vendor     = 'Intel Corporation'
    device     = 'Atom Processor E3800 Series PCI Express Root Port 3'
    class      = bridge
    subclass   = PCI-PCI
pcib4@pci0:0:28:3:      class=0x060400 card=0x0f4e8086 chip=0x0f4e8086 rev=0x0e           hdr=0x01
    vendor     = 'Intel Corporation'
    device     = 'Atom Processor E3800 Series PCI Express Root Port 4'
    class      = bridge
    subclass   = PCI-PCI
ehci0@pci0:0:29:0:      class=0x0c0320 card=0x0f348086 chip=0x0f348086 rev=0x0e           hdr=0x00
    vendor     = 'Intel Corporation'
    device     = 'Atom Processor Z36xxx/Z37xxx Series USB EHCI'
    class      = serial bus
    subclass   = USB
isab0@pci0:0:31:0:      class=0x060100 card=0x0f1c8086 chip=0x0f1c8086 rev=0x0e           hdr=0x00
    vendor     = 'Intel Corporation'
    device     = 'Atom Processor Z36xxx/Z37xxx Series Power Control Unit'
    class      = bridge
    subclass   = PCI-ISA
none1@pci0:0:31:3:      class=0x0c0500 card=0x0f128086 chip=0x0f128086 rev=0x0e           hdr=0x00
    vendor     = 'Intel Corporation'
    device     = 'Atom Processor E3800 Series SMBus Controller'
    class      = serial bus
    subclass   = SMBus
em0@pci0:1:0:0: class=0x020000 card=0x6c401462 chip=0x150c8086 rev=0x00 hdr=0x00
    vendor     = 'Intel Corporation'
    device     = '82583V Gigabit Network Connection'
    class      = network
    subclass   = ethernet
em1@pci0:2:0:0: class=0x020000 card=0x6c401462 chip=0x150c8086 rev=0x00 hdr=0x00
    vendor     = 'Intel Corporation'
    device     = '82583V Gigabit Network Connection'
    class      = network
    subclass   = ethernet
em2@pci0:3:0:0: class=0x020000 card=0x6c401462 chip=0x150c8086 rev=0x00 hdr=0x00
    vendor     = 'Intel Corporation'
    device     = '82583V Gigabit Network Connection'
    class      = network
    subclass   = ethernet
em3@pci0:4:0:0: class=0x020000 card=0x6c401462 chip=0x150c8086 rev=0x00 hdr=0x00
    vendor     = 'Intel Corporation'
    device     = '82583V Gigabit Network Connection'
    class      = network
    subclass   = ethernet