[PlanetCCRMA] updates: new kernel for fc9/10

[Fernando Lopez-Lezcano]

On Fri, 2009-01-09 at 20:10 -0500, Hector Centeno wrote:
> Thanks Fernando for the quick reply. Something I forgot to mention is
> that I'm booting from an external USB drive that seems to be plugged
> right into the USB with IRQ19, which is the one being reported in the
> kernel failure warnings. 

Ah, yes, that sound suspicious... I tried once using an external usb
drive but was not very successful. 

> Maybe If I install in the internal SATA drive I won't get the locks.

If you can do that probably it is worth a try. Or trying to use a
different usb interface if there is another that is not using that
interrupt (it could be that the problem is _because_ the drive is in
that interface, of course). 

-- Fernando


> On Fri, Jan 9, 2009 at 7:58 PM, Fernando Lopez-Lezcano
> <nando at ccrma.stanford.edu> wrote:
> > On Fri, 2009-01-09 at 19:49 -0500, Hector Centeno wrote:
> >> Hello,
> >>
> >> I just installed FC10, the recent 2.6.26.8-1.rt12.2 kernel and I'm
> >> also experiencing the same kind of warnings (Your system had a kernel
> >> failure) similar to the ones John Dey reported but in my case related
> >> to IRQ19 (which happens to be assigned to one of the USB controllers
> >> uhci_hcd:usb6 and to ata_piix. Beside that I'm experiencig occasional
> >> random system hard locks, sometimes at boot and other several minutes
> >> after. How can I debug this locks?
> >
> > Sigh, well, so much for a good kernel :-(
> > I have not seen a single hang yet (on fc9, same kernel)
> >
> > I don't really know how you can easily debug the hard locks. The only
> > method I know involves two computers with serial interfaces and a serial
> > null-modem cable :-) You can run the console over serial and then you
> > would be able to see the kernel panic or whatever is happening on the
> > hung computer (and use sysrq to get a list of all processes and their
> > state). I did that once but it is a lot of work...
> >
> > Maybe you should just run the Fedora kernel...
> >
> > You could see what warnings are you getting by looking at the output of
> > dmesg. Probably of the type "invalid context called from sleeping
> > function" or something similar (can't remember).
> >
> > -- Fernando
> >
> >
> >> Anything I should be trying? I
> >> haven't installed the nvidia drivers. I have an Asus P5B-VM
> >> motherboard, a Core 2 Duo CPU, 2 gigs of ram and a Nvidia 8600 video
> >> interface. Also I have a Edirol FA-101 but the locks happen without
> >> running jack. This system has been quite stable with previous RT
> >> kernels (pre 2.6.25).
> >>
> >> Thanks!
> >>
> >> Hector
> >>
> >>
> >> On Mon, Jan 5, 2009 at 3:04 PM, Fernando Lopez-Lezcano
> >> <nando at ccrma.stanford.edu> wrote:
> >> > On Mon, 2009-01-05 at 15:00 -0500, John Dey wrote:
> >> >> Fernando,
> >> >>
> >> >> I tried install testing rt kernel on F10 but on login got report
> >> >> saying:  Your system had a kernel failure.  See attachment for details.
> >> >
> >> > Yes, I have seen those as well. I posted to lkml but never got a fix for
> >> > the problem (the kernel seems to work fine otherwise). Maybe I should
> >> > try again....
> >> >
> >> > -- Fernando
> >> >
> >> >>
> >> >> John
> >> >>
> >> >> On Jan 5, 2009, at 1:58 PM, Fernando Lopez-Lezcano wrote:
> >> >>
> >> >> > Hi all, I just pushed new realtime kernel packages for fc9 (testing
> >> >> > repository) and fc10. This is 2.6.26.8-1.rt12.2 and includes both the
> >> >> > latest rt patch _and_ Adam Sampson's tasklet_hi_action patch that
> >> >> > fixes
> >> >> > MIDI! (kudos to Adam for his bisecting work and patch!).
> >> >> >
> >> >> > I tested this briefly on Fedora 9 and it appears to work fine.
> >> >> >
> >> >> > As usual, both i386 and x86_64 versions are available and also PAE
> >> >> > versions for i386. Updated planetccrma-core packages are also
> >> >> > available.
> >> >> >
> >> >> > I have been running 2.6.26.8-rt12 for days on end without a hung
> >> >> > machine, but that may only indicate I have been lucky. Anyway, maybe
> >> >> > this is, after all, a good realtime kernel spin... feedback welcome as
> >> >> > usual.
> >> >> >
> >> >> > [Also: Arnaud updated the nova ladspa plugins on fc9/fc10...]
> >> >> >
> >> >> > Enjoy! Happy New Year, Happy New Kernel...
> >> >
> >> >
> >> > _______________________________________________
> >> > PlanetCCRMA mailing list
> >> > PlanetCCRMA at ccrma.stanford.edu
> >> > http://ccrma-mail.stanford.edu/mailman/listinfo/planetccrma
> >> >
> >
> >
> 
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