Re: [RFC][PATCH] set_page_buffer_dirty should skip unmapped buffers

Andrew Morton
2006-09-01T17:18:01Z

On Fri, 01 Sep 2006 09:32:22 -0700
Badari Pulavarty <pbadari@us.ibm.com> wrote:

> > > Kernel BUG at fs/buffer.c:2791
> > > invalid opcode: 0000 [1] SMP
> > >
> > > Its complaining about BUG_ON(!buffer_mapped(bh)).

I need to have a little think about this, remember what _should_ be
happening in this situation.

We (mainly I) used to do a huge amount of fsx-linux testing on 1k blocksize
filesystems. We've done something to make this start happening. Part of
resolving this bug will be working out what that was.