[Bug 193620] New: Problem with igb multiqueue together with pf

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=193620

            Bug ID: 193620
           Summary: Problem with igb multiqueue together with pf
           Product: Base System
           Version: 10.0-RELEASE
          Hardware: amd64
                OS: Any
            Status: Needs Triage
          Severity: Affects Many People
          Priority: ---
         Component: kern
          Assignee: freebsd-bugs at FreeBSD.org
          Reporter: radek.krejca at starnet.cz

Hello,

I have problem with new boards from supermicro. There are 2 nics Intel pro,
which supports multiqueue. I boot all freebsd boxes from the same image as
diskless and all boxes are NATs with pf. Every box works perfectly, but only 2
new boxes with this board have problems. But I cannot say where.

Situation is following - after start is everything ok. But for some hours
bigger streams are starting to disconnect. Bigger streams - it means stream
about a few megabytes. Pages, mostly, work.

>From one or second side is connection working - but problem is only traffic
over pf or probably whole FBSD box.

I try to catch any communication. I dont know, if is this THE problem, but it
looks that communication ends with this:

743    3.301279    46.255.224.95    10.3.59.222    TCP    54    [TCP ACKed
unseen segment] 80→55859 [RST, ACK] Seq=699393 Ack=780 Win=17520 Len=0

There is nothing in logs. System looks fine and this is the same configuration
which works fine elsewhere. I try to change board for others (but the same ser.
no.) and problem is the same.

part of dmesg:

igb0: <Intel(R) PRO/1000 Network Connection version - 2.4.0> port 0xd000-0xd01f
mem 0xf7200000-0xf727ffff,0xf7280000-0xf7283fff irq 18 at device 0.0 on pci5
igb0: Using MSIX interrupts with 5 vectors
igb0: Ethernet address: 00:25:90:f4:db:38
igb0: Bound queue 0 to cpu 0
igb0: Bound queue 1 to cpu 1
igb0: Bound queue 2 to cpu 2
igb0: Bound queue 3 to cpu 3
pcib6: <ACPI PCI-PCI bridge> irq 19 at device 28.3 on pci0
pci6: <ACPI PCI bus> on pcib6
igb1: <Intel(R) PRO/1000 Network Connection version - 2.4.0> port 0xc000-0xc01f
mem 0xf7100000-0xf717ffff,0xf7180000-0xf7183fff irq 19 at device 0.0 on pci6
igb1: Using MSIX interrupts with 5 vectors
igb1: Ethernet address: 00:25:90:f4:db:39
igb1: Bound queue 0 to cpu 4
igb1: Bound queue 1 to cpu 5
igb1: Bound queue 2 to cpu 6
igb1: Bound queue 3 to cpu 7

uname:
FreeBSD test.starnet.cz 10.0-RELEASE-p7 FreeBSD 10.0-RELEASE-p7 #1 r271046: Wed
Sep  3 23:50:39 CEST 2014    
root at compiler.starnet.cz:/usr/obj/usr/src/sys/NAT-10.0  amd64

I dont know what I should check and test. Every looks fine, but not work...

After disabling multiqueue works every fine. U used 
hw.igb.enable_msix=0

Thank you
Radek

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