From: fanchaoting <fanchaoting@cn.fujitsu.com>
To: "Paweł Sikora" <pawel.sikora@agmk.net>
Cc: Steve Dickson <SteveD@redhat.com>,
linux-nfs@vger.kernel.org, baggins@pld-linux.org,
Trond.Myklebust@netapp.com
Subject: Re: mount.nfs: cannot allocate memory.
Date: Fri, 04 Jan 2013 14:03:52 +0800 [thread overview]
Message-ID: <50E670C8.6050400@cn.fujitsu.com> (raw)
In-Reply-To: <14289664.zy0he5HnEB@localhost>
Paweł Sikora 写道:
> On Thursday 03 of January 2013 09:42:01 Steve Dickson wrote:
>> On 03/01/13 04:27, Paweł Sikora wrote:
>>> Hi,
>>>
>>> with the latest nfs-1.2.7/kernel-3.7.1 tools i've noticed an error during autofs mounting.
>>> reduced testcase shows that mount.nfs with 'vers=4' has a problem:
>>>
>>> [root@chufu ~]# mount.nfs -v -o vers=4 192.168.2.100:/home/atest/farm-local /mnt
>>> mount.nfs: timeout set for Thu Jan 3 10:22:00 2013
>>> mount.nfs: trying text-based options 'vers=4,addr=192.168.2.100,clientaddr=192.168.2.103'
>>> mount.nfs: mount(2): Cannot allocate memory
>>> mount.nfs: Cannot allocate memory
>>>
>>> while the vers=3 works fine:
>>>
>>> [root@chufu ~]# mount.nfs -v -o vers=3 192.168.2.100:/home/atest/farm-local /mnt
>>> mount.nfs: timeout set for Thu Jan 3 10:22:04 2013
>>> mount.nfs: trying text-based options 'vers=3,addr=192.168.2.100'
>>> mount.nfs: prog 100003, trying vers=3, prot=6
>>> mount.nfs: trying 192.168.2.100 prog 100003 vers 3 prot TCP port 2049
>>> mount.nfs: prog 100005, trying vers=3, prot=17
>>> mount.nfs: trying 192.168.2.100 prog 100005 vers 3 prot UDP port 42412
>>>
>>> no obvious errors in logs on nfs server/client side :(
>>> i can provide more info if you need to diagnose this issue.
>> Please set the kernel debugging with 'rpcdebug -m nfs -s mount' then post the out put found in /var/log/messages.
>>
>
> rpcdebug can't find the /proc/sys/sunrpc/nfs_debug file in my system. how can i enable it?
>
Hi, I found that the upstream kernel didn't create /proc/sys/sunrpc/nfs_debug default,
if you want to debug rpc,you should set CONFIG_SUNRPC_DEBUG = y.
#cat .config
.............................
CONFIG_SUNRPC_BACKCHANNEL=y
CONFIG_SUNRPC_XPRT_RDMA=m
CONFIG_RPCSEC_GSS_KRB5=m
CONFIG_SUNRPC_DEBUG=y <-----CONFIG_SUNRPC_DEBUG = y
CONFIG_CEPH_FS=m
CONFIG_CIFS=m
.......................
> --
> To unsubscribe from this list: send the line "unsubscribe linux-nfs" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
>
next prev parent reply other threads:[~2013-01-04 5:57 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-01-03 9:27 mount.nfs: cannot allocate memory Paweł Sikora
2013-01-03 14:42 ` Steve Dickson
2013-01-04 5:16 ` Paweł Sikora
2013-01-04 6:03 ` fanchaoting [this message]
2013-01-04 15:20 ` Paweł Sikora
2013-01-05 10:08 ` Paweł Sikora
2013-01-07 14:47 ` Steve Dickson
2013-01-09 17:44 ` Paweł Sikora
2013-01-16 19:03 ` Paweł Sikora
2013-01-16 19:39 ` J. Bruce Fields
2013-01-16 20:07 ` Paweł Sikora
2013-01-16 20:15 ` J. Bruce Fields
2013-01-16 21:18 ` Paweł Sikora
2013-01-17 13:49 ` J. Bruce Fields
2013-01-17 14:59 ` Paweł Sikora
2013-01-16 20:14 ` Myklebust, Trond
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