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Re: [Linux-cluster] lm_dlm_cancel



On Mon, Sep 01, 2008 at 07:55:48PM -0400, James Chamberlain wrote:
> Hi all,
> 
> Since I sent the below, the aforementioned cluster crashed.  Now I  
> can't mount the scratch112 filesystem.  Attempts to do so crash the  
> node trying to mount it.  If I run gfs_fsck against it, I see the  
> following:
> 
> # gfs_fsck -nv /dev/s12/scratch112
> Initializing fsck
> Initializing lists...
> Initializing special inodes...
> Validating Resource Group index.
> Level 1 check.
> 5834 resource groups found.
> (passed)
> Setting block ranges...
> Can't seek to last block in file system: 4969529913
> Unable to determine the boundaries of the file system.
> Freeing buffers.
> 
> Not being able to determine the boundaries of the file system seems  
> like a very bad thing.  However, LVM didn't complain in the slightest  
> when I expanded the logical volume.  How can I recover from this?

Looks like the killed gfs_grow left your fs is a bad condition.
I believe Bob Peterson has addressed that recently.

> >I'm trying to grow a GFS filesystem.  I've grown this filesystem  
> >before and everything went fine.  However, when I issued gfs_grow  
> >this time, I saw the following messages in my logs:
> >
> >Aug 29 21:04:13 s12n02 kernel: lock_dlm: lm_dlm_cancel 2,17 flags 80
> >Aug 29 21:04:13 s12n02 kernel: lock_dlm: lm_dlm_cancel skip 2,17  
> >flags 100
> >Aug 29 21:04:14 s12n02 kernel: lock_dlm: lm_dlm_cancel 2,17 flags 80
> >Aug 29 21:04:14 s12n02 kernel: dlm: scratch112: (14239) dlm_unlock:  
> >10241 busy 2
> >Aug 29 21:04:14 s12n02 kernel: lock_dlm: lm_dlm_cancel rv -16 2,17  
> >flags 40080
> >
> >The last three lines of these log entries repeat themselves once a  
> >second until I hit ^C.  The filesystem appears to still be up and  
> >accessible.  Any thoughts on what's going on here and what I can do  
> >about it?

Should be fixed by
https://bugzilla.redhat.com/show_bug.cgi?id=438268

Dave


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