Stelian Pop wrote: > On Sat, Oct 13, 2007 at 04:42:27PM +0200, Jan Kiszka wrote: > >> Where do you get ENODEV? On nucleus startup? Please provide >> /proc/timer_list output of the working and non-working setups. > > It turns out that I had the Linux NMI watchdog enabled (nmi_watchdog=1 > on the command line) and this was causing the -ENODEV problems. Once > removed, I'm able to boot and successfully run all configurations: UP, > UP + APIC, UP + APIC + IO_APIC, SMP. And the latencies are back to normal. > > Maybe we should detect that the NMI watchdog is enabled and issue a > warning message, this would save others a few hours and many kernel > builds...
NMI is still broken for >= 2.6.22, known issue :-/. The problem is that Linux falls back to the PIT, leaving our beloved APIC in disabled state which makes Xenomai fail when asking for it. $Someone has to look into the reason why we cannot take over the APIC in that scenario... > > This is with your timer cleanup patch, of course. > >> PS: For unknown reasons your mails don't make it to my web.de address, >> only to the list. Do you get any error messages? > > I did get one saying: > <[EMAIL PROTECTED]>: host mx-ha02.web.de[217.72.192.188] refused to > talk to me: > 554 Transaction failed. For explanation visit > http://freemail.web.de/reject/?ip=88.191.70.230 > > I didn't investigate yet what's happenning. > Your IP is probably associated to some DSL access, and a lot of providers block such senders categorically due to all the spam robots running on hijacked user PCs. Jan
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