Bug 193620 - Problem with igb multiqueue together with pf
Summary: Problem with igb multiqueue together with pf
Status: Closed Overcome By Events
Alias: None
Product: Base System
Classification: Unclassified
Component: kern (show other bugs)
Version: 10.0-RELEASE
Hardware: amd64 Any
: --- Affects Many People
Assignee: freebsd-net (Nobody)
Keywords: IntelNetworking
Depends on:
Reported: 2014-09-13 20:24 UTC by radek.krejca
Modified: 2016-02-16 14:12 UTC (History)
2 users (show)

See Also:


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Description radek.krejca 2014-09-13 20:24:15 UTC

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	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

FreeBSD test.starnet.cz 10.0-RELEASE-p7 FreeBSD 10.0-RELEASE-p7 #1 r271046: Wed Sep  3 23:50:39 CEST 2014     root@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 

Thank you
Comment 1 Sean Bruno freebsd_committer 2015-06-29 18:45:47 UTC
hw.igb.enable_msix=0  disables MSIX features which *does* disable multiqueue.  You can however, set hw.igb.num_queues=1 to use MSIX and only 1 queue.

Can you test this with 10.1 release and 10.2 release beta when available?
Comment 2 Sean Bruno freebsd_committer 2016-02-16 14:12:23 UTC
I'm unable to reproduce this and the submitter has timed out.