Messages in this thread | | | Date | Thu, 25 Nov 2004 12:44:58 +0100 | From | Ingo Molnar <> | Subject | Re: [patch] Real-Time Preemption, -RT-2.6.10-rc2-mm3-V0.7.31-0 |
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* Rui Nuno Capela <rncbc@rncbc.org> wrote:
> > how hard of a freeze is it? I.e. if you log in over the text console, > > and do: > > > > chrt -f 99 -p `pidof 'IRQ 1'` > > chrt -f 99 -p $$ > > > > can you access the sysrq keys after the freeze happens? > > The lockup is pretty hard indeed. Complete lockup. No sysrq, not even > any output thru serial console. The only action that has some visible > effect is turning the power/reset switch off :)
note that unless you try the above, or the debug_direct_keyboard switch, 'soft' lockups will have the same symptoms: no sysrq, no serial console, an apparently hung system. So unless you've done the equivalent already, please try my suggestions.
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