RE: oops umounting full LVM snapshots

[Steve Lord <lord@sgi.com>]

On Tue, 2002-02-26 at 14:00, DICKENS,CARY (HP-Loveland,ex2) wrote:
> 
> Eric,
> I'm glad you reproduced the problem, because we are having the same problems
> here.  We are on a 2.4.17 kernel with LVM version 1.0.2.  We include the
> 2.4.11 vfs lock patch that was included in LVM 1.0.3.  The disks are fibre.
> XFS is from 2/7/02 cvs and is built when the kernel.  These are 4 way SMP
> machines with highmem enabled.
> 
> We mount with quota,grpquota,noqenforce,nogqenforce,osyncisdsync and get a
> lockup when we unmount a snapshot that has overflowed.  When we reboot, the
> LVM doesn't work.  Without quotas we don't see the problem.  
> 
> I don't think IDE has anything to do with it here because we don't even have
> an IDE hard drive in the system.
> 
> Let me know if there is any information we can provide or test we can do to
> help hunt this down.
> 
> Cary
> 

If it is stack overflow as we suspect then different drivers may push it
over the edge in different ways. What we need to do is catch it in the
act and see if there isn't something we can push off the stack.

Steve
 
-- 

Steve Lord                                      voice: +1-651-683-3511
Principal Engineer, Filesystem Software         email: lord@sgi.com