Hi all,
Problem:
IRQ-related "nobody cared" kernel call traces not long after bootup on
Linux 3.0.10-rt27. I thought I'd try a -rt kernel to see if it would
resolve the audio drop-outs on my new Firewire audio interface.
System:
Dual Opteron 244 processors on an Iwill DK8N (AMD 8131 and nForce3 250Gb)
Ubuntu 10.04.3 LTS
`uname -a` returns:
Linux zaphod 3.0.10-rt27 #1 SMP PREEMPT RT Thu Nov 24 00:50:56 NZDT 2011
x86_64 GNU/Linux
`dmesg` snippet:
[ 86.720241] irq 17: nobody cared (try booting with the "irqpoll" option)
[ 86.720248] Pid: 553, comm: irq/17-firewire Not tainted 3.0.10-rt27 #1
[ 86.720251] Call Trace:
[ 86.720261] [<ffffffff810c315a>] __report_bad_irq+0x3a/0xd0
[ 86.720266] [<ffffffff810c3332>] note_interrupt+0x142/0x1f0
[ 86.720270] [<ffffffff810c2e16>] irq_thread+0x1b6/0x1e0
[ 86.720273] [<ffffffff810c2f10>] ? exit_irq_thread+0x80/0x80
[ 86.720277] [<ffffffff810c2c60>] ? irq_finalize_oneshot+0x130/0x130
[ 86.720281] [<ffffffff810c2c60>] ? irq_finalize_oneshot+0x130/0x130
[ 86.720286] [<ffffffff81081876>] kthread+0x96/0xa0
[ 86.720290] [<ffffffff8104dda2>] ? finish_task_switch+0x52/0x100
[ 86.720296] [<ffffffff815f09e4>] kernel_thread_helper+0x4/0x10
[ 86.720300] [<ffffffff810817e0>] ? kthreadd+0x170/0x170
[ 86.720304] [<ffffffff815f09e0>] ? gs_change+0x13/0x13
[ 86.720306] handlers:
[ 86.720310] [<ffffffff810c1760>] irq_default_primary_handler threaded
[<ffffffffa010bd70>] irq_handler
[ 86.720319] Disabling IRQ #17
[ 87.905515] irq 18: nobody cared (try booting with the "irqpoll" option)
[ 87.905521] Pid: 470, comm: irq/18-Gina24 Not tainted 3.0.10-rt27 #1
[ 87.905523] Call Trace:
[ 87.905528] [<ffffffff810c315a>] __report_bad_irq+0x3a/0xd0
[ 87.905531] [<ffffffff810c3332>] note_interrupt+0x142/0x1f0
[ 87.905535] [<ffffffff810c2e16>] irq_thread+0x1b6/0x1e0
[ 87.905538] [<ffffffff810c2f10>] ? exit_irq_thread+0x80/0x80
[ 87.905542] [<ffffffff810c2c60>] ? irq_finalize_oneshot+0x130/0x130
[ 87.905545] [<ffffffff810c2c60>] ? irq_finalize_oneshot+0x130/0x130
[ 87.905550] [<ffffffff81081876>] kthread+0x96/0xa0
[ 87.905553] [<ffffffff8104dda2>] ? finish_task_switch+0x52/0x100
[ 87.905557] [<ffffffff815f09e4>] kernel_thread_helper+0x4/0x10
[ 87.905562] [<ffffffff810817e0>] ? kthreadd+0x170/0x170
[ 87.905566] [<ffffffff815f09e0>] ? gs_change+0x13/0x13
[ 87.905568] handlers:
[ 87.905571] [<ffffffff810c1760>] irq_default_primary_handler threaded
[<ffffffffa02fe7b0>] snd_echo_interrupt
[ 87.905579] Disabling IRQ #18
I don't see these messages with the non-rt version of the same kernel.
These seem to be the only IRQs affected.
I did try the "irqpoll" kernel command-line option as suggested in the
error messages, but the kernel messages say that it's not supported in -rt.
`cat /proc/interrupts' reports:
CPU0 CPU1
0: 135 0 IO-APIC-edge timer
1: 0 2 IO-APIC-edge i8042
3: 0 2 IO-APIC-edge
4: 0 3 IO-APIC-edge
6: 0 5 IO-APIC-edge floppy
7: 1 0 IO-APIC-edge
8: 0 0 IO-APIC-edge rtc0
9: 0 0 IO-APIC-fasteoi acpi
12: 0 4 IO-APIC-edge i8042
14: 0 0 IO-APIC-edge pata_amd
15: 0 0 IO-APIC-edge pata_amd
17: 199111 890 IO-APIC-fasteoi firewire_ohci
18: 196249 3752 IO-APIC-fasteoi Gina24
20: 4511 193 IO-APIC-fasteoi ohci_hcd:usb2
21: 2375 3144 IO-APIC-fasteoi ehci_hcd:usb1
22: 0 0 IO-APIC-fasteoi sata_nv, ohci_hcd:usb3
25: 6138 482 IO-APIC-fasteoi aic7xxx
26: 5520 91 IO-APIC-fasteoi eth1, aic7xxx
27: 42997 6943 IO-APIC-fasteoi sata_sil
29: 1 375 IO-APIC-fasteoi megaraid
NMI: 17 16 Non-maskable interrupts
LOC: 254097 230128 Local timer interrupts
SPU: 0 0 Spurious interrupts
PMI: 17 16 Performance monitoring interrupts
IWI: 0 0 IRQ work interrupts
RES: 26350 25414 Rescheduling interrupts
CAL: 2825 32855 Function call interrupts
TLB: 1697 1346 TLB shootdowns
TRM: 0 0 Thermal event interrupts
THR: 0 0 Threshold APIC interrupts
MCE: 0 0 Machine check exceptions
MCP: 117 117 Machine check polls
ERR: 1
MIS: 0
Needless to say, the Firewire audio is a no-go.
I'm also having trouble getting dual-head X to work, but that's another
issue, most likely. I'm also wondering if I can get the HPET timer
enabled: AFAICT (from looking at other BIOSes) the nForce3 has one, but
this system's ACPI tables don't advertise it.
Any help or suggestions gratefully received. :^)
--
Chris
--
To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
