Messages in this thread | | | Date | Tue, 16 Nov 2004 19:43:15 +0100 | From | Ingo Molnar <> | Subject | Re: [patch] Real-Time Preemption, -RT-2.6.10-rc2-mm1-V0.7.27-3 |
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* Mark_H_Johnson@raytheon.com <Mark_H_Johnson@raytheon.com> wrote:
> Florian Schmidt <mista.tapas@gmx.net> wrote: > > >ok, this new build still hangs at the same spot. > > Me too. The serial console output follows at the end. Will try a few > boot alternatives and let you know if I can get this to run. > >From what I can tell, it was attempting to test the NMI watchdog > when it failed.
i've uploaded -5 with a fix in profile_tick() - does it boot fine for you now?
Btw., a good way to catch such early bootup bugs is to activate early-printk over the serial console:
earlyprintk=serial,ttyS0,38400 console=ttyS0,38400 console=tty0
and in this particular case the most effective serial logging method is:
earlyprintk=serial,ttyS0,38400,keep console=ttyS0,38400 console=tty0
the 'keep' tells the kernel to keep the early console a bit longer - which in this particular timer-interrupt crash case produces a more usable log. (the 'keep' parameter makes the serial console a bit less useful as a regular console later on, so it should only be used for crashes that the normal early console doesnt catch.)
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