[PlanetCCRMA] updates: new kernel for fc9/10

Fri Jan 9 21:21:19 PST 2009

Thanks Fernando,

I connected the drive to a SATA port and although I still get the
kernel failure warnings I haven't gotten any more kernel locks! So I
guess it is good news but also there seems to be something broken in
the kernel. My log for the kernel failure is:

BUG: sleeping function called from invalid context IRQ-19(443) at
arch/x86/mm/highmem_32.c:8
in_atomic():0 [00000000], irqs_disabled():1
Pid: 443, comm: IRQ-19 Tainted: P
2.6.26.8-1.rt12.2.fc10.ccrma.i686.rt #1
 [<c041ff44>] __might_sleep+0xe8/0xed
 [<c041cd5d>] kmap+0x42/0x55
 [<f8913db5>] ata_sff_hsm_move+0x3d3/0x66b [libata]
 [<f89142ac>] ata_sff_interrupt+0x153/0x1eb [libata]
 [<c0461000>] handle_IRQ_event+0x49/0xcd
 [<c04612e5>] thread_simple_irq+0x45/0x7c
 [<c046131c>] ? do_irqd+0x0/0x229
 [<c04613cb>] do_irqd+0xaf/0x229
 [<c046131c>] ? do_irqd+0x0/0x229
 [<c043b10f>] kthread+0x3b/0x61
 [<c043b0d4>] ? kthread+0x0/0x61
 [<c040581f>] kernel_thread_helper+0x7/0x10

Hope this helps.

Cheers,

Hector

On Fri, Jan 9, 2009 at 8:25 PM, Fernando Lopez-Lezcano
<nando at ccrma.stanford.edu> wrote:
> 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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