On Fri, 2006-10-20 at 11:54 -0500, Eric Sandeen wrote:
> Eric Sandeen wrote:
>
> > After a few bugs I encountered in FC6 in buffer.c, with output like:
> >
> > Kernel BUG at fs/buffer.c: 2791
> >
> > where buffer.c contains:
> >
> > ...
> > BUG_ON(!buffer_locked(bh));
> > BUG_ON(!buffer_mapped(bh));
> > BUG_ON(!bh->b_end_io);
> > ...
> >
> > around line 2790, it's awfully tedious to go get the exact failing kernel tree
> > just to see -which- BUG_ON was encountered.
> >
> > Printing out the failing condition as a string would make this more helpful IMHO.
> >
> > This is mostly just compile-tested... comments?
> Whoops, missed WARN_ON_ONCE... thanks Peter.
>
> Signed-off-by: Eric Sandeen <[email protected]>
Acked-by: Peter Zijlstra <[email protected]>
I like this, as you pointed out, its not always obvious which condition
is the offending one, this makes it more clear.
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