Re: grub2 resets machine when reading from an xfs filesystem

[Robert Millan]

On Wed, Jan 30, 2008 at 06:17:18PM +0800, Bean wrote:
> I figure it out, the problem is caused by nested function:
> 
> int call_hook (grub_uint64_t ino, char *filename)
> 
> it would take 3 registry to pass the parameter ! (2 for ino), so %ecx
> will be overwritten agian.
> 
> NESTED_FUNC_ATTR doesn't help, because there is only 2 parameters
> here, so you need to use  __attribute__ ((regparm (1))) explicitly.

Cool.  I wonder, how do you manage to catch this kind of things.  Do you
use a debugger in qemu, or just read the code and then you see it :-) ?

-- 
Robert Millan

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