[OpenAFS-devel] afs_dentry_iput patch (linux)

[Derek Atkins]

Except for the fact that i_count is an unsigned int, which implies a
32-bit number, not 16-bit.

-derek

"Neulinger, Nathan R." <nneul@umr.edu> writes:

> In my case, refCount is usually around 65535 or so. That could possibly
> indicate a underflow/overflow of 16 bit integer condition?
> 
> -- Nathan
> 
> > -----Original Message-----
> > From: Chas Williams [mailto:chas@cmf.nrl.navy.mil]
> > Sent: Wednesday, January 24, 2001 2:07 PM
> > To: Neulinger, Nathan R.
> > Cc: openafs-devel@openafs.org
> > Subject: Re: [OpenAFS-devel] afs_dentry_iput patch (linux) 
> > 
> > 
> > >Ok. While I admit I like the fact that you are deleting code 
> > that generates
> > >an error message on some of my clients (web and other 
> > servers) - I wonder if
> > >that is a good approach or if it will just hide my problem. :)
> > 
> > well... it will just move the error actually.  i am looking 
> > at this same
> > bug.  i only see it on SMP systems.  i believe xxx_iput() needs to 
> > atleast a spin_lock.  looking at osi_iput (a 2.4 specific version)
> > it seems to me that osi_iput could be called again on the 
> > same inode between
> > the entry and afs_delete_inode.
> > 
> > i basically see 'Bad refCount 0...' which makes me thing that
> > afs_delete_inode() doesnt get finished before iput() is called again.
> > at one point, i put lock_kernel()/unlock_kernel() afs_delete_inode
> > but i suspect it needs to be a higher up.
> > 
> > not gospel, just some thoughts.
> > 
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-- 
       Derek Atkins, SB '93 MIT EE, SM '95 MIT Media Laboratory
       Member, MIT Student Information Processing Board  (SIPB)
       URL: http://web.mit.edu/warlord/    PP-ASEL-IA     N1NWH
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