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SubjectRe: [PATCH] more helpful WARN_ON and BUG_ON messages
On Fri, Oct 20, 2006 at 11:23:54AM -0500, 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?
>...

Who really needs this considering it implies a size increase of the
kernel image?

Using a kernel tree so unusual that you can't locate the source anymore
sounds like an extremely rare and unintelligent situation, not something
that must be handled.

cu
Adrian

--

"Is there not promise of rain?" Ling Tan asked suddenly out
of the darkness. There had been need of rain for many days.
"Only a promise," Lao Er said.
Pearl S. Buck - Dragon Seed

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