https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=205759
Bug ID: 205759
Summary: igb cannot receive packets on first port only
Product: Base System
Version: 11.0-CURRENT
Hardware: amd64
OS: Any
Status: New
Severity: Affects Some People
Priority: ---
Component: kern
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected],
[email protected]
CC: [email protected]
Created attachment 164902
--> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=164902&action=edit
Alexander L's example fix. Not a permanent solution.
On two separate systems with Intel S5520HC motherboards, FreeBSD CURRENT cannot
receive any packets on igb0. igb1 works fine, and igb0 works when booted into
FreeBSD 9/stable.
* Disabling tso, lro, rxcsum, and txcsum has no effect.
* tcpdump reveals that igb0 transmits successfully, but fails to receive
* Curiously, "netstat -I igb0" shows nonzero values for Ipkts, even
though "tcpdump -i igb0" shows no inbound packets at all.
* I can't really tell if IPv4 or IPv6 are working, because even ARP
doesn't work.
* SVN revisions 291495 and 292570 are both bad. I don't know any
recent good revision.
* Alexander Leidinger reported a similar problem, but didn't specify whether
all igb ports were broken or only one (or even whether he had multiple ports).
He reported that 11-CURRENT worked at svn r287323, but failed at r290633.
* Alexander also provided the attached patch, which fixes the issue.
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