linux-kernel - Re: WARNING: at fs/inode.c:280 drop

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Message-ID: <20120830002006.GA23484@NickAndBarb.net>
Date:	Wed, 29 Aug 2012 17:20:06 -0700
From:	Nick Pasich <Nick@...kAndBarb.net>
To:	Jeff Layton <jlayton@...hat.com>
Cc:	linux-nfs@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: WARNING: at fs/inode.c:280 drop_nlink+0x31/0x33()

Thanks for replying Jeff...

Yes, it sure would be great to have 3.5.z  patch...


--( Nick Pasich )--



On Wed, Aug 29, 2012 at 03:16:41PM -0700, Jeff Layton wrote:
> On Wed, 29 Aug 2012 09:25:27 -0700
> Nick Pasich <Nick@...kAndBarb.net> wrote:
> 
> > 
> > I'm using kernel 3.5.3 ... 
> > 
> > It happens on 3.5.1 and 3.5.2 also.
> > 
> > I know that Nick Bowler has already reported this...
> > 
> > I'm experiencing the same thing.
> > 
> > It happens when moving files from one directory to another
> > on the same partition (NFS). 
> > 
> >   --( Nick Pasich )--
> > 
> > 
> > #############################################################################
> > ##
> > ## Happens when PSTs are moved from one directory to another on the ISCSI ...
> > ##
> > #############################################################################
> > 
> > Aug 29 08:06:16 localhost kernel: ------------[ cut here ]------------
> > Aug 29 08:06:16 localhost kernel: WARNING: at fs/inode.c:280 drop_nlink+0x31/0x33()
> > Aug 29 08:06:16 localhost kernel: Hardware name: To Be Filled By O.E.M.
> > Aug 29 08:06:16 localhost kernel: Modules linked in: ecb md4 cifs w83627hf eeprom asb100 hwmon_vid hwmon nfsd exportfs ipv6 psmouse usb_storage io_edgeport usbserial sg r8169 mii evdev intel_agp uhci_hcd i2c_i801 i2c_core shpchp intel_gtt agpgart ehci_hcd microcode serio_raw
> > Aug 29 08:06:16 localhost kernel: Pid: 31477, comm: rm Tainted: G        W    3.5.3 #1
> > Aug 29 08:06:16 localhost kernel: Call Trace:
> > Aug 29 08:06:16 localhost kernel:  [<c10a53e2>] ? drop_nlink+0x31/0x33
> > Aug 29 08:06:16 localhost kernel:  [<c1025dd2>] ? warn_slowpath_common+0x7b/0x90
> > Aug 29 08:06:16 localhost kernel:  [<c10a53e2>] ? drop_nlink+0x31/0x33
> > Aug 29 08:06:16 localhost kernel:  [<c1025e02>] ? warn_slowpath_null+0x1b/0x1f
> > Aug 29 08:06:16 localhost kernel:  [<c10a53e2>] ? drop_nlink+0x31/0x33
> > Aug 29 08:06:16 localhost kernel:  [<f83dfa81>] ? cifs_unlink+0x134/0x63d [cifs]
> > Aug 29 08:06:16 localhost kernel:  [<c10a37d4>] ? dput+0x11/0x117
> > Aug 29 08:06:16 localhost kernel:  [<c10a87d4>] ? mntput_no_expire+0xf/0xf7
> > Aug 29 08:06:16 localhost kernel:  [<c109ca9b>] ? vfs_unlink+0x4e/0xb6
> > Aug 29 08:06:16 localhost kernel:  [<c109b333>] ? __lookup_hash+0x54/0xac
> > Aug 29 08:06:16 localhost kernel:  [<c109e8c2>] ? do_unlinkat+0x10a/0x12d
> > Aug 29 08:06:16 localhost kernel:  [<c10a0124>] ? sys_ioctl+0x34/0x57
> > Aug 29 08:06:16 localhost kernel:  [<c140a8ed>] ? syscall_call+0x7/0xb
> > Aug 29 08:06:16 localhost kernel: ---[ end trace 756b427e3bd671f9 ]---
> > 
> 
> (cc'ing linux-cifs ml)
> 
> This stack trace comes from cifs, not nfs.
> 
> Steve French has a patch queued in his tree to silence this warning
> that I believe he intends to send to Linus for 3.6. Perhaps we should
> consider backporting it for 3.5.z too?
> 
> -- 
> Jeff Layton <jlayton@...hat.com>

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