Re: [PATCH] do_wp_page: BUG on invalid pfn

[Russell King]

On Fri, Aug 15, 2003 at 05:50:05PM -0400, Ed L Cashin wrote:
> On i386 WARN_ON calls dump_stack, but BUG just prints some minimal
> helpful info on the console, like this:
> 
> ------------[ cut here ]------------
> kernel BUG at kernel/any.c:36!
> invalid operand: 0000 [#1]

BUG causes an exception, which calls die(), which in turn calls
handle_BUG(), and this indeed does print the first two lines of the
above.  die() goes on to print the 3rd line, but it also goes on
to call show_registers() which should print the registers and
calltrace as well.

Maybe you've found a bug in show_registers() ?

-- 
Russell King (rmk@xxxxxxxxxxxxxxxx)                The developer of ARM Linux
             http://www.arm.linux.org.uk/personal/aboutme.html

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