> On Mon, Jan 22, 2001 at 02:50:16PM -0600, Steve Lord wrote:
> > Daniel, can you try this patch, I do not have a sure fire way of
> > triggering this problem on my hardware. The problem appears to be
> > related to locking differences between Irix and Linux (again), the
> > strategy call in Irix is called with the buffer locked for the
> > duration, which means no one can change the underlying extents.
> > In the Linux case we have one page locked, and anything else in
> > the system can truncate the file out underneath us - we end up
> > allocating a new extent from scratch rather than turning a delalloc
> > into a real extent, this causes the extent to trip.
>
> If you can get the linux inode semaphore it'll stop the truncates.
And deadlock when this code is callout out of a system call which already
has the inode lock....
I think this one is nasty!
Steve
>
> -Andi
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