Re: 2.6.10-rc3-mm1-V0.7.33-03 and NVidia wierdness, with workaround...

[Steven Rostedt <rostedt@goodmis.org>]

On Fri, 2004-12-17 at 13:10 -0500, Valdis.Kletnieks@vt.edu wrote:
> On Fri, 17 Dec 2004 12:03:31 EST, Steven Rostedt said:
> 
> > Update: I just tried some of my fixes to the rc3-mm1 kernel, and that
> > worked without a problem.  But I still didn't get by the sleep problem
> > in Ingo's RT patch.  Did you get further, and did you make fixes to both
> > the nvidia module as well as the kernel?
> 
> I have to admit I haven't *hit* a sleep problem specific to Ingo's code, unless
> you have a different config/hardware and my BKL wierdness and your sleep are
> 2 different manifestations of the same problem.  Or maybe they're 2 different
> bugs... ;)
> 
> I'm running Ingo's patch and the nvidia 6629 drivers as I'm typing this. Given
> you had to fool with pgd_offset_k and friends, you're probably trying an older
> driver (6111?) and should upgrade - the 6629 picked up a *bunch* of 2.6-related
> fixes.  Maybe 6629 fixed your sleep issue?
> 

Nope! I have the 6629. Actually, the patch you have for NV solved the
pgd_offset problem. But I'm amazed that you didn't get into the
may_sleep calls.  In the nvidia code os-interface.c, would call hooks
into the kernel with interrupts turned off and hit the may_sleep.  But
looking into it further now, one of the crashes came from
ioremap_nocache and the sleep happened in kmem_cache_alloc. So maybe
Ingo fixed this.  I lied earlier (not intentionally), the last kernel I
tried with the NVidia was V0.7.32-18, so let me try again.

Thanks, for the references though.

-- Steve