Re: [patch 2/3] vdso: improve print_fatal_signals support by adding memory maps

From: Ingo Molnar
Date: Wed May 24 2006 - 01:34:00 EST



* Zachary Amsden <zach@xxxxxxxxxx> wrote:

> >+ if (current->mm)
> >+ printk("vDSO at %p\n", current->mm->context.vdso);
> >+#endif
> > show_regs(regs);
> >+ printk("\n");
> >+ print_vmas();
> > }
> >
> > static int __init setup_print_fatal_signals(char *str
>
> Perhaps I should have read your first patch more carefully - it did
> have register info. This looks even better (although you may now want
> to allow it to be #ifdef'd out under CONFIG_EMBEDDED).
>
> You probably should use PATH_MAX+1 instead of SIZE or check IS_ERR()
> on the string from d_path.

the string is constructed on the stack, so 4K would be too much. 128 is
i think enough for most purposes.

Ingo
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