On Tue, 2006-01-31 at 12:07 -0600, Clark Williams wrote:
> On Tue, 2006-01-31 at 09:52 -0800, chris perkins wrote:
> > > <snip>
> > >
> > >> CONFIG_LATENCY_TIMING=y
> > >
> > > I'm betting this is the same thing I'm seeing. Are you running on a
> > > uniprocessor x86_64? And if so are you seeing messages similar to the
> > > following?
> > >
> > > init[1]: segfault at ffffffff8010fadc rip ffffffff8010fadc rsp
> > > 00007fffffdacfc8
> > >
> > > If so, then I suspect that you're getting a segfault in ld.so (at least
> > > that's the furthest I've gotten so far). Something about how the kernel
> > > sets up the memory map is upsetting dynamically loaded executables. I
> > > can boot with init=/sbin/sash, but when I try and run a dynamically
> > > linked program, I get segfaults.
> > >
> > > You might try turning off LATENCY_TRACING and see if that allows you to
> > > boot and run (works for me).
> > >
> > > Meanwhile, I'm going to try and pin this down to something better than
> > > "somewhere in ld.so..."
> > >
> > > Clark
> > > -
> > > Clark Williams <[email protected]>
> >
> > hi,
> > actually i'm running on a dual processor x86_64. with the problem i was
> > having, i never got far enough to see the message you asked about. Steven
> > Rostedt's suggestion to turn off NUMA worked and i am now able to boot.
> > However, if I turn LATENCY_TRACING on, i get an immediate reboot after the
> > kernel is uncompressed. this doesn't sound like the same problem you're
> > having, though.
>
> Man, I saw that LATENCY_TRACING and completely missed the NUMA
> parameter. Sorry about that...
>
> I must be the only person running a uniprocessor x86_64 that's working
> with the -rt patches and trying to trace latencies. If I turn off
> LATENCY_TRACING, I boot just fine.
>
> Are you getting any output from the kernel before the reboot?
I'm still curious to what's happening with your kernel. I'm currently
running my x86_64 (typing right now on it) with CONFIG_SMP=n and
CONFIG_LATENCY=y. I know you probably sent a config before, but could
you send it to me again. (probably best to send it to me off list)
Thanks,
-- Steve
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