Bug 16195

Summary: nfsd hangs on startup
Product: Networking Reporter: François Valenduc (francoisvalenduc)
Component: OtherAssignee: Arnaldo Carvalho de Melo (acme)
Status: RESOLVED CODE_FIX    
Severity: normal CC: akpm
Priority: P1    
Hardware: All   
OS: Linux   
Kernel Version: 2.6.35-rc3 ( commit 597a264) Subsystem:
Regression: Yes Bisected commit-id:

Description François Valenduc 2010-06-13 15:12:17 UTC 
With 2.6.35-rc3, nfsd hangs at startup. A git-bisect run shows that the first bad commit is the following:

commit 597a264b1a9c7e36d1728f677c66c5c1f7e3b837
Author: John Fastabend <john.r.fastabend@intel.com>
Date:   Thu Jun 3 09:30:11 2010 +0000

    net: deliver skbs on inactive slaves to exact matches

Indeed, if I revert it, the problem doesn't occur. Looking at the description of this commit, I should probably add that I use a virtual tap interface and a bridge for running a kvm machine.
Comment 1 Andrew Morton 2010-06-15 22:56:18 UTC 
Thanks.  This should have been fixed by 

commit e897082fe7a5b591dc4dd5599ac39081a7c8e482
Author:     John Fastabend <john.r.fastabend@intel.com>
AuthorDate: Sun Jun 13 10:36:30 2010 +0000
Commit:     David S. Miller <davem@davemloft.net>
CommitDate: Sun Jun 13 17:12:40 2010 -0700

    net: fix deliver_no_wcard regression on loopback device
Comment 2 François Valenduc 2010-06-16 16:46:31 UTC 
This commit indeed fix the problem.