[linux-cifs-client] Re: CIFS-VFS error

[Jeff Layton]

On Tue, 21 Apr 2009 09:39:16 -0400
Anirudh Srinivasan <srianirudh at gmail.com> wrote:

> Hi
> My kernel version here is :
> 
> Linux version 2.6.18-8.el5 (brewbuilder at ls20-bc2-14.build.redhat.com) (gcc
> version 4.1.1 20070105 (Red Hat 4.1.1-52)) #1 SMP Fri Jan 26 14:15:21 EST
> 2007
> 
> Red Hat Enterprise Linux Server release 5.2 (Tikanga)
> 
> How can i avoid these error from the logs.? Also i see the CPU load spikes
> up at around the same time , and this being a web server i think this is
> more of a serious issue .
> 
> Thank you
> 

That was the kernel originally released with RHEL5. It's pretty old (>2
years) and doesn't have the benefit of any of the bugfixes that went in
since RHEL5 was released. There are a number of bugs that can manifest
themselves in the way you're seeing.

You should consider updating to a newer kernel.


> On Sun, Apr 19, 2009 at 9:15 PM, Anirudh Srinivasan <srianirudh at gmail.com>wrote:
> 
> > Hi Gurus,
> > We have a webserver that has CPU spiking up every sat evening. When i
> > looked at that time to the messages i see the following :
> >
> > Apr 15 21:16:12 lxweb kernel:  CIFS VFS: No response for cmd 50 mid 47215
> > Apr 18 15:50:37 lxweb kernel:  CIFS VFS: No response for cmd 50 mid 47928
> > Apr 18 18:22:44 lxweb kernel:  CIFS VFS: sends on sock d410ce00 stuck for
> > 15 seconds
> > Apr 18 18:22:44 lxweb kernel:  CIFS VFS: Error -11 sending data on socket
> > to server
> > Apr 18 18:22:44 lxweb kernel:  CIFS VFS: Write2 ret -11, written = 0
> > Apr 18 18:23:00 lxweb kernel:  CIFS VFS: sends on sock d410ce00 stuck for
> > 15 seconds
> > Apr 18 18:23:00 lxweb kernel:  CIFS VFS: Error -11 sending data on socket
> > to server
> > Apr 18 18:23:11 lxweb kernel:  CIFS VFS: server not responding
> > Apr 18 18:23:11 lxweb last message repeated 3 times
> > Apr 18 18:23:11 lxweb kernel:  CIFS VFS: No response to cmd 47 mid 55417
> > Apr 18 18:23:11 lxweb kernel:  CIFS VFS: No response to cmd 47 mid 55418
> > Apr 18 18:23:11 lxweb kernel:  CIFS VFS: No response to cmd 47 mid 55324
> > Apr 18 18:23:11 lxweb kernel:  CIFS VFS: No response to cmd 47 mid 55440
> > Apr 18 18:23:11 lxweb kernel:  CIFS VFS: No response to cmd 47 mid 55215
> > Apr 18 18:23:11 lxweb kernel:  CIFS VFS: No response to cmd 47 mid 55372
> > Apr 18 18:23:11 lxweb kernel:  CIFS VFS: No response to cmd 47 mid 55429
> > Apr 18 18:23:11 lxweb kernel:  CIFS VFS: No response to cmd 47 mid 55426
> > Apr 18 18:23:11 lxweb kernel:  CIFS VFS: No response to cmd 47 mid 55366
> > Apr 18 18:23:11 lxweb kernel:  CIFS VFS: No response to cmd 47 mid 55436
> > Apr 18 18:23:11 lxweb kernel:  CIFS VFS: No response to cmd 47 mid 55389
> > Apr 18 18:23:11 lxweb kernel:  CIFS VFS: No response to cmd 47 mid 55412
> > Apr 18 18:23:11 lxweb kernel:  CIFS VFS: No response to cmd 47 mid 55421
> > Apr 18 18:23:11 lxweb kernel:  CIFS VFS: No response to cmd 47 mid 55325
> > Apr 18 18:23:11 lxweb kernel:  CIFS VFS: No response to cmd 47 mid 55452
> > Apr 18 18:23:11 lxweb kernel:  CIFS VFS: No response to cmd 47 mid 55321
> > Apr 18 18:23:11 lxweb kernel:  CIFS VFS: No response to cmd 47 mid 55461
> > Apr 18 18:23:11 lxweb kernel:  CIFS VFS: No response to cmd 47 mid 55348
> > Apr 18 18:23:11 lxweb kernel:  CIFS VFS: No response to cmd 47 mid 55353
> > Apr 18 18:23:11 lxweb kernel:  CIFS VFS: No response to cmd 47 mid 55460
> > Apr 18 18:23:11 lxweb kernel:  CIFS VFS: No response to cmd 47 mid 55454
> > Apr 18 18:23:11 lxweb kernel:  CIFS VFS: No response to cmd 47 mid 55431
> > Apr 18 18:23:11 lxweb kernel:  CIFS VFS: No response to cmd 47 mid 55428
> > Apr 18 18:23:11 lxweb kernel:  CIFS VFS: No response to cmd 47 mid 55465
> > Apr 18 18:23:11 lxweb kernel:  CIFS VFS: No response to cmd 47 mid 55425
> > Apr 18 18:23:11 lxweb kernel:  CIFS VFS: No response to cmd 47 mid 55437
> > Apr 18 18:23:11 lxweb kernel:  CIFS VFS: No response to cmd 47 mid 55448
> > Apr 18 18:23:11 lxweb kernel:  CIFS VFS: No response to cmd 47 mid 55424
> > Apr 18 18:23:11 lxweb kernel:  CIFS VFS: No response to cmd 47 mid 55415
> > Apr 18 18:23:11 lxweb kernel:  CIFS VFS: No response to cmd 47 mid 55456
> > Apr 18 18:23:11 lxweb kernel:  CIFS VFS: No response to cmd 47 mid 55443
> > Apr 18 18:23:11 lxweb kernel:  CIFS VFS: No response to cmd 47 mid 55433
> > Apr 18 18:23:11 lxweb kernel:  CIFS VFS: No response to cmd 47 mid 55438
> > Apr 18 18:23:11 lxweb kernel:  CIFS VFS: No response to cmd 47 mid 55442
> > Apr 18 18:23:11 lxweb kernel:  CIFS VFS: No response to cmd 47 mid 55447
> > Apr 18 18:23:11 lxweb kernel:  CIFS VFS: No response to cmd 47 mid 55445
> > Apr 18 18:23:11 lxweb kernel:  CIFS VFS: No response to cmd 47 mid 55446
> >
> > This has been the third week i am seeing this happen . Any help to figure
> > out what is going on would be highly appreciated.
> >
> > Thanks
> > --
> > Anirudh
> >
> >
> 
> 
> -- 
> Anirudh Srinivasan


-- 
Jeff Layton <jlayton at redhat.com>