[PlanetCCRMA] Please help with hpet1: lost 2 rtc interrupts

[Geoff King]

> What type of system do you have?
>
Hi Steve,
Not sure specifically what you mean so I'll give you what I can.
The system is 32bit Fedora 12 w CCRMA realtime kernel
(2.6.31.12-1.rt20.1.fc12.ccrma.i686.rt).  1TB hard drives and 2GB
memory.  akmod to build the nvidia drivers. M2496 audio and a variety
of other things...

Also note that I posted the same question on the lmuse-developer list
and have been getting a few responses.  Here:
http://sourceforge.net/mailarchive/forum.php?forum_name=lmuse-developer
--------------------
cat /proc/interrupts
            CPU0       CPU1
   0:        586          0   IO-APIC-edge      timer
   1:          2          0   IO-APIC-edge      i8042
   8:     371958          0   IO-APIC-edge      rtc0
   9:          0          0   IO-APIC-fasteoi   acpi
  12:          4          1   IO-APIC-edge      i8042
  14:     207687          0   IO-APIC-edge      ata_piix
  15:     966985          0   IO-APIC-edge      ata_piix
  16:      43216     268120   IO-APIC-fasteoi   uhci_hcd:usb5, nvidia
  18:    1208831          0   IO-APIC-fasteoi   uhci_hcd:usb4, ohci1394
  19:        151     302897   IO-APIC-fasteoi   uhci_hcd:usb3, ICE1712
  21:         36     311958   IO-APIC-fasteoi   eth0
  23:          4          0   IO-APIC-fasteoi   ehci_hcd:usb1, uhci_hcd:usb2
 NMI:          0          0   Non-maskable interrupts
 LOC:    7104563    7948332   Local timer interrupts
 SPU:          0          0   Spurious interrupts
 CNT:          0          0   Performance counter interrupts
 PND:          0          0   Performance pending work
 RES:      55397     233995   Rescheduling interrupts
 CAL:      58249      51920   Function call interrupts
 TLB:       6238       4216   TLB shootdowns
 TRM:          0          0   Thermal event interrupts
 THR:          0          0   Threshold APIC interrupts
 MCE:          0          0   Machine check exceptions
 MCP:        454        454   Machine check polls
 ERR:          1
 MIS:          0

--------------------
lspci
00:00.0 Host bridge: Intel Corporation 82945G/GZ/P/PL Memory
Controller Hub (rev 02)
00:1c.0 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express
Port 1 (rev 01)
00:1d.0 USB Controller: Intel Corporation 82801G (ICH7 Family) USB
UHCI Controller #1 (rev 01)
00:1d.1 USB Controller: Intel Corporation 82801G (ICH7 Family) USB
UHCI Controller #2 (rev 01)
00:1d.2 USB Controller: Intel Corporation 82801G (ICH7 Family) USB
UHCI Controller #3 (rev 01)
00:1d.3 USB Controller: Intel Corporation 82801G (ICH7 Family) USB
UHCI Controller #4 (rev 01)
00:1d.7 USB Controller: Intel Corporation 82801G (ICH7 Family) USB2
EHCI Controller (rev 01)
00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev e1)
00:1f.0 ISA bridge: Intel Corporation 82801GB/GR (ICH7 Family) LPC
Interface Bridge (rev 01)
00:1f.2 IDE interface: Intel Corporation 82801GB/GR/GH (ICH7 Family)
SATA IDE Controller (rev 01)
00:1f.3 SMBus: Intel Corporation 82801G (ICH7 Family) SMBus Controller (rev 01)
01:00.0 VGA compatible controller: nVidia Corporation GeForce 9500 GT (rev a1)
02:01.0 Multimedia audio controller: VIA Technologies Inc. ICE1712
[Envy24] PCI Multi-Channel I/O Controller (rev 02)
02:02.0 FireWire (IEEE 1394): VIA Technologies, Inc. VT6306 Fire II
IEEE 1394 OHCI Link Layer Controller (rev 80)
02:05.0 Ethernet controller: Realtek Semiconductor Co., Ltd.
RTL-8110SC/8169SC Gigabit Ethernet (rev 10)
--------------------
lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 005 Device 003: ID 046d:c03d Logitech, Inc. M-BT96a Pilot Optical Mouse
Bus 005 Device 002: ID 049f:0051 Compaq Computer Corp. KU-0133 Easy
Access Interner Keyboard
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 002: ID 0763:1060 Midiman
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
--------------------
dmesg..
I did not incude the whole thing since it is large.  Let me know if
you want to see the whole thing.
Beginning...
Initializing cgroup subsys cpuset
Initializing cgroup subsys cpu
Linux version 2.6.31.12-1.rt20.1.fc12.ccrma.i686.rt
(mockbuild at planetforge.stanford.edu) (gcc version 4.4.2 20091222 (Red
Hat 4.4.2-20) (GCC) ) #1 SMP PREEMPT RT Thu Jan 21 22:42:06 EST 2010

[Cut out many lines]

rtc_cmos 00:03: setting system clock to 2010-04-21 07:51:53 UTC (1271836313)
Initalizing network drop monitor service
*****************************************************************************
*                                                                           *
*  REMINDER, the following debugging option is turned on in your .config:   *
*                                                                           *
*                                                                           *
*  it may increase runtime overhead and latencies.                          *
*                                                                           *
*****************************************************************************
ata2.01: ATAPI: TSSTcorp CDDVDW SH-S223C, SB01, max UDMA/100

[Cut out many lines]
--------------------
Thanks, Geoff