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Bug 268541 - net-fs/autofs-5.0.4-r3: nfs and ipv6 - no fallback to ipv4
Summary: net-fs/autofs-5.0.4-r3: nfs and ipv6 - no fallback to ipv4
Status: RESOLVED NEEDINFO
Alias: None
Product: Gentoo Linux
Classification: Unclassified
Component: Current packages (show other bugs)
Hardware: All Linux
: High normal (vote)
Assignee: Stefaan De Roeck (RETIRED)
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2009-05-04 03:01 UTC by Kolbjørn Barmen
Modified: 2011-07-15 15:57 UTC (History)
2 users (show)

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Package list:
Runtime testing required: ---

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Description Kolbjørn Barmen 2009-05-04 03:01:58 UTC 
With autofs-5.0.4-r3 automount failes to fall-back to ipv4 when nfs server doesnt respond on ipv6. A work-around is to add host with ipv4 address to /etc/hosts, or to go back to autofs-5.0.4-r2 which doesnt have the ipv6 patches that -r3 does.

Reproducible: Always

Steps to Reproduce:
1. emerge autofs-5.0.4-r3
2. be on an ipv6 networking, make sure nfs server is registered in DNS with ipv6-address
3. configure autofs to mount from the said host
4. see how it failes with "mount(nfs): no hosts available"

Actual Results:  
As mentioned, "mount(nfs): no hosts available" comes in the log, and it fails to automount

Expected Results:  
A fallback to ipv4 when ipv6 fails
Comment 1 Gilles Dartiguelongue (RETIRED) gentoo-dev 2009-05-04 22:50:42 UTC 
nfs doesn't work yet on IPv6 afaik (at least not in mainline kernel)
Comment 2 Dustin Polke 2011-06-28 17:23:53 UTC 
(In reply to comment #0)
> With autofs-5.0.4-r3 automount failes to fall-back to ipv4 when nfs server
> doesnt respond on ipv6. A work-around is to add host with ipv4 address to
> /etc/hosts, or to go back to autofs-5.0.4-r2 which doesnt have the ipv6 patches
> that -r3 does.
Could you please test with autofs-5.0.6 which has included a patch regarding IPv6 handling and report whether this issue still persists or has been solved?
Comment 3 Dustin Polke 2011-07-15 15:57:43 UTC 
(In reply to comment #2)
> (In reply to comment #0)
> > With autofs-5.0.4-r3 automount failes to fall-back to ipv4 when nfs server
> > doesnt respond on ipv6. A work-around is to add host with ipv4 address to
> > /etc/hosts, or to go back to autofs-5.0.4-r2 which doesnt have the ipv6 patches
> > that -r3 does.
> Could you please test with autofs-5.0.6 which has included a patch regarding
> IPv6 handling and report whether this issue still persists or has been solved?
Please test with the latest version available and re-open this bug if the problem still persists.
Thanks.