lkml.org 
[lkml]   [2011]   [Mar]   [23]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [bisect] kernel 2.6.38 regression with root nfs mounting
From
Date

On Mar 23, 2011, at 10:30 AM, Belisko Marek wrote:

> On Wed, Mar 23, 2011 at 3:06 PM, Chuck Lever <chuck.lever@oracle.com> wrote:
>>
>> On Mar 23, 2011, at 9:46 AM, Belisko Marek wrote:
>>
>>> On Wed, Mar 23, 2011 at 2:44 PM, Chuck Lever <chuck.lever@oracle.com> wrote:
>>>>
>>>> What does "rpcinfo -p 10.146.1.21" output look like? Is NFS over UDP enabled on your server?
>>> program vers proto port
>>> 100000 2 tcp 111 portmapper
>>> 100000 2 udp 111 portmapper
>>> 100024 1 udp 40517 status
>>> 100024 1 tcp 51397 status
>>> 100021 1 udp 44516 nlockmgr
>>> 100021 3 udp 44516 nlockmgr
>>> 100021 4 udp 44516 nlockmgr
>>> 100021 1 tcp 55152 nlockmgr
>>> 100021 3 tcp 55152 nlockmgr
>>> 100021 4 tcp 55152 nlockmgr
>>> 100003 2 tcp 2049 nfs
>>> 100003 3 tcp 2049 nfs
>>> 100003 4 tcp 2049 nfs
>>> 100227 2 tcp 2049
>>> 100227 3 tcp 2049
>>> 100003 2 udp 2049 nfs
>>> 100003 3 udp 2049 nfs
>>> 100003 4 udp 2049 nfs

The server is advertising NFS over UDP. Why can't a client access your server via UDP? What happens if you perform a normal post-boot mount of this file system via UDP?

>>> 100227 2 udp 2049
>>> 100227 3 udp 2049
>>> 100005 1 udp 58278 mountd
>>> 100005 1 tcp 37178 mountd
>>> 100005 2 udp 58278 mountd
>>> 100005 2 tcp 37178 mountd
>>> 100005 3 udp 58278 mountd
>>> 100005 3 tcp 37178 mountd
>>
>> Can you boot if you specify either the "tcp" or "proto=tcp" NFSROOT mount options?
> When add proto=tcp to bootargs it boot fine
> (....nfsroot=10.146.1.21:/home/open-nandra/rootfs,proto=tcp....).
>> Perhaps a network trace would be probative. Capture on the server with "tcpdump -s0 -w /tmp/foo ip 10.146.1.199" (untested, but I think you get the idea) while the client is attempting to boot, and post.
> Log is attached in attachment (too big 4.8M). Correct form is: tcpdump
> -s0 -w /tmp/foo host 10.146.1.199

Received. I should have been clear: Please capture a non-working client boot attempt. To reduce the size of the attachment, strip the TFTP packets before sending, and please gzip the file.

--
Chuck Lever
chuck[dot]lever[at]oracle[dot]com






\
 
 \ /
  Last update: 2011-03-23 15:57    [from the cache]
©2003-2014 Jasper Spaans. Advertise on this site