On Wed, Mar 01, 2006 at 03:56:09PM +0100, Andi Kleen wrote:
> > Thanks for the interest, Andi.
> >
> > The chipset is NVIDIA nForce Pro 2200 (CK804). The mobo is Tyan 2895:
>
> I have such a system sitting next to me and it doesn't show any such symptoms.
> I normally don't let it run unrebooted over days though.
These lost ticks are reproducable in a few minutes with cpio.
> I would suspect some driver.
> Do you use any special addin cards? What modules are you using?
My guess is the sata_nv driver, as it happens during heavy local file read.
The machines all have 2-4 SATA WD Raptors connected to the mobo.
> I don't run these kernels though - only mainline.
I wouldn't expect you to be running a Fedora kernel. :-p
I usually roll my own, but I've been really backed up with other tasks.
As I said, I'll build some mainline kernels. I want to apply
some of Ingo's debugging patches and give John Stultz's new timekeeping
code a try anyway.
rugolsky@ti94: cat /proc/interrupts
CPU0 CPU1
0: 28474 577049 IO-APIC-edge timer
1: 8 0 IO-APIC-edge i8042
7: 2 0 IO-APIC-edge parport0
8: 40 0 IO-APIC-edge rtc
9: 0 0 IO-APIC-level acpi
14: 36 21506 IO-APIC-edge ide0
50: 3 0 IO-APIC-level ohci1394
201: 0 0 IO-APIC-level libata, ehci_hcd:usb1
209: 1876 15495 IO-APIC-level libata, ohci_hcd:usb2
217: 2483567 0 IO-APIC-level eth0
233: 0 0 IO-APIC-level NVidia CK804
NMI: 87 41
LOC: 605510 605486
ERR: 0
MIS: 0
Lots-o-modules; I'll have to whittle these down.
rugolsky@ti94: lsmod
Module Size Used by
parport_pc 65581 1
lp 49025 0
parport 77261 2 parport_pc,lp
nfs 275745 4
lockd 107601 2 nfs
nfs_acl 37185 1 nfs
sunrpc 210041 4 nfs,lockd,nfs_acl
8021q 57041 0
video 52553 0
button 41185 0
battery 44233 0
ac 38985 0
ohci1394 71457 0
ieee1394 407641 1 ohci1394
ohci_hcd 57565 0
ehci_hcd 70477 0
i2c_nforce2 41409 0
i2c_core 59457 1 i2c_nforce2
snd_intel8x0 70889 0
snd_ac97_codec 146045 1 snd_intel8x0
snd_ac97_bus 36033 1 snd_ac97_codec
snd_seq_dummy 37445 0
snd_seq_oss 71973 0
snd_seq_midi_event 42177 1 snd_seq_oss
snd_seq 99225 5 snd_seq_dummy,snd_seq_oss,snd_seq_midi_event
snd_seq_device 43857 3 snd_seq_dummy,snd_seq_oss,snd_seq
snd_pcm_oss 93297 0
snd_mixer_oss 52673 1 snd_pcm_oss
snd_pcm 139593 3 snd_intel8x0,snd_ac97_codec,snd_pcm_oss
snd_timer 62025 2 snd_seq,snd_pcm
snd 103073 9 snd_intel8x0,snd_ac97_codec,snd_seq_oss,snd_seq,
snd_seq_device,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_timer
soundcore 45025 1 snd
snd_page_alloc 46289 2 snd_intel8x0,snd_pcm
forcedeth 60869 0
floppy 107993 0
ext3 179665 5
jbd 100073 1 ext3
raid1 56385 4
dm_mod 98697 4
sata_nv 44101 8
libata 98265 1 sata_nv
sd_mod 53697 10
scsi_mod 195321 2 libata,sd_mod
Thanks.
-Bill
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