Re: [PATCH v5 3.1.0-rc4-tip 13/26] x86: define a x86 specific exception notifier.

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



* Peter Zijlstra <peterz@xxxxxxxxxxxxx> [2011-09-26 16:19:51]:

> On Tue, 2011-09-20 at 17:32 +0530, Srikar Dronamraju wrote:
> > @@ -820,6 +821,19 @@ do_notify_resume(struct pt_regs *regs, void *unused, __u32 thread_info_flags)
> >                 mce_notify_process();
> >  #endif /* CONFIG_X86_64 && CONFIG_X86_MCE */
> >  
> > +       if (thread_info_flags & _TIF_UPROBE) {
> > +               clear_thread_flag(TIF_UPROBE);
> > +#ifdef CONFIG_X86_32
> > +               /*
> > +                * On x86_32, do_notify_resume() gets called with
> > +                * interrupts disabled. Hence enable interrupts if they
> > +                * are still disabled.
> > +                */
> > +               local_irq_enable();
> > +#endif
> > +               uprobe_notify_resume(regs);
> > +       }
> > +
> >         /* deal with pending signal delivery */
> >         if (thread_info_flags & _TIF_SIGPENDING)
> >                 do_signal(regs); 
> 
> It would be good to remove this difference between i386 and x86_64.


I think, we have already discussed this. I tried getting to know why we
have this difference in behaviour. However I havent been able to find
the answer.

If you can get somebody to answer this, I would be happy to modify as
required.

-- 
Thanks and Regards
Srikar

--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@xxxxxxxxx.  For more info on Linux MM,
see: http://www.linux-mm.org/ .
Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/
Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>


[Index of Archives]     [Linux ARM Kernel]     [Linux ARM]     [Linux Omap]     [Fedora ARM]     [IETF Annouce]     [Bugtraq]     [Linux]     [Linux OMAP]     [Linux MIPS]     [ECOS]     [Asterisk Internet PBX]     [Linux API]