* Re: [2.6.7] Ehci controller interrupts like crazy on nforce2
[not found] <A6974D8E5F98D511BB910002A50A6647615FFA43@hdsmsx403.hd.intel.com>
@ 2004-07-11 2:40 ` Len Brown
0 siblings, 0 replies; 5+ messages in thread
From: Len Brown @ 2004-07-11 2:40 UTC (permalink / raw)
To: Jonathan Filiatrault; +Cc: linux-kernel, linux-usb-devel
On Thu, 2004-07-08 at 21:16, Jonathan Filiatrault wrote:
> Here it is: another nforce2 hardware bug. The ehci controller seems to
> send a massive number of interrupts to the kernel (264379 per second).
> This uses about 5 to 10% of the cpu. This shows up in top in the
> "hi"(hard interrupts) indicator. Nothing unusual shows up in the
> kernel
> log. My system has an Asus A7N8X Nforce2 Board with an Athlon XP 2800+
> mounted on it.
>
> [joe@omega3:~]$ cat /proc/interrupts ; sleep 1; cat /proc/interrupts
> CPU0
> 0: 583513 XT-PIC timer
Please boot with "acpi_skip_timer_override" to fix your IRQ0.
Yes, this workaround should be invoked automatically for you.
No, it probably will not help your EHCI problem.
-Len
> 1: 1279 IO-APIC-edge i8042
> 7: 137293 IO-APIC-edge parport0
> 8: 0 IO-APIC-edge rtc
> 9: 0 IO-APIC-level acpi
> 14: 41463 IO-APIC-edge ide0
> 15: 23 IO-APIC-edge ide1
> 17: 9 IO-APIC-level EMU10K1
> 18: 18584 IO-APIC-level eth0
> 20: 121541873 IO-APIC-level ehci_hcd
> 21: 0 IO-APIC-level ohci_hcd
> 22: 0 IO-APIC-level ohci_hcd
> NMI: 0
> LOC: 583348
> ERR: 0
> MIS: 0
> CPU0
^ permalink raw reply [flat|nested] 5+ messages in thread
* [2.6.7] Ehci controller interrupts like crazy on nforce2
@ 2004-07-09 1:16 Jonathan Filiatrault
2004-07-09 3:10 ` Kalin KOZHUHAROV
2004-07-11 12:09 ` Daniel Schmitt
0 siblings, 2 replies; 5+ messages in thread
From: Jonathan Filiatrault @ 2004-07-09 1:16 UTC (permalink / raw)
To: linux-kernel; +Cc: linux-usb-devel
Here it is: another nforce2 hardware bug. The ehci controller seems to
send a massive number of interrupts to the kernel (264379 per second).
This uses about 5 to 10% of the cpu. This shows up in top in the
"hi"(hard interrupts) indicator. Nothing unusual shows up in the kernel
log. My system has an Asus A7N8X Nforce2 Board with an Athlon XP 2800+
mounted on it.
[joe@omega3:~]$ cat /proc/interrupts ; sleep 1; cat /proc/interrupts
CPU0
0: 583513 XT-PIC timer
1: 1279 IO-APIC-edge i8042
7: 137293 IO-APIC-edge parport0
8: 0 IO-APIC-edge rtc
9: 0 IO-APIC-level acpi
14: 41463 IO-APIC-edge ide0
15: 23 IO-APIC-edge ide1
17: 9 IO-APIC-level EMU10K1
18: 18584 IO-APIC-level eth0
20: 121541873 IO-APIC-level ehci_hcd
21: 0 IO-APIC-level ohci_hcd
22: 0 IO-APIC-level ohci_hcd
NMI: 0
LOC: 583348
ERR: 0
MIS: 0
CPU0
0: 584760 XT-PIC timer
1: 1280 IO-APIC-edge i8042
7: 137578 IO-APIC-edge parport0
8: 0 IO-APIC-edge rtc
9: 0 IO-APIC-level acpi
14: 41505 IO-APIC-edge ide0
15: 23 IO-APIC-edge ide1
17: 9 IO-APIC-level EMU10K1
18: 18641 IO-APIC-level eth0
20: 121806252 IO-APIC-level ehci_hcd
21: 0 IO-APIC-level ohci_hcd
22: 0 IO-APIC-level ohci_hcd
NMI: 0
LOC: 584595
ERR: 0
MIS: 0
[joe@omega3:~]$
Any help or random thougths are welcome.
Happy Hacking,
Joe
^ permalink raw reply [flat|nested] 5+ messages in thread* Re: [2.6.7] Ehci controller interrupts like crazy on nforce2
2004-07-09 1:16 Jonathan Filiatrault
@ 2004-07-09 3:10 ` Kalin KOZHUHAROV
2004-07-11 12:09 ` Daniel Schmitt
1 sibling, 0 replies; 5+ messages in thread
From: Kalin KOZHUHAROV @ 2004-07-09 3:10 UTC (permalink / raw)
To: Jonathan Filiatrault; +Cc: LKML
Jonathan Filiatrault wrote:
> Here it is: another nforce2 hardware bug. The ehci controller seems to
> send a massive number of interrupts to the kernel (264379 per second).
> This uses about 5 to 10% of the cpu. This shows up in top in the
> "hi"(hard interrupts) indicator. Nothing unusual shows up in the kernel
> log. My system has an Asus A7N8X Nforce2 Board with an Athlon XP 2800+
> mounted on it.
Well, I have the same system (board is Deluxe version) and no such situation.
> [joe@omega3:~]$ cat /proc/interrupts ; sleep 1; cat /proc/interrupts
> CPU0
> 0: 583513 XT-PIC timer
Hmm, I don't have this though. "IO-APIC-edge timer" is the closest in my box.
> 1: 1279 IO-APIC-edge i8042
> 7: 137293 IO-APIC-edge parport0
> 8: 0 IO-APIC-edge rtc
> 9: 0 IO-APIC-level acpi
> 14: 41463 IO-APIC-edge ide0
> 15: 23 IO-APIC-edge ide1
> 17: 9 IO-APIC-level EMU10K1
> 18: 18584 IO-APIC-level eth0
> 20: 121541873 IO-APIC-level ehci_hcd
> 21: 0 IO-APIC-level ohci_hcd
> 22: 0 IO-APIC-level ohci_hcd
> NMI: 0
> LOC: 583348
> ERR: 0
> MIS: 0
[snip]
> 20: 121806252 IO-APIC-level ehci_hcd
[snip]
> Any help or random thougths are welcome.
Well, the "usual answer" is try enable/disable PREEMPT, upgrade BIOS.
Also IO-APIC and APIC as a whole.
Here is my board:
$ cat /proc/interrupts
CPU0
0: 415667195 IO-APIC-edge timer
1: 184380 IO-APIC-edge i8042
8: 2 IO-APIC-edge rtc
9: 0 IO-APIC-level acpi
14: 865112 IO-APIC-edge ide0
15: 9195 IO-APIC-edge ide1
19: 31371344 IO-APIC-level nvidia
20: 8356973 IO-APIC-level ehci_hcd, NVidia nForce2, eth0
21: 0 IO-APIC-level ohci_hcd
22: 798076 IO-APIC-level ohci_hcd
NMI: 0
LOC: 415691931
ERR: 0
MIS: 0
$ bash -c 'cat /proc/interrupts ; sleep 1; cat /proc/interrupts'| grep ehci
20: 8357517 IO-APIC-level ehci_hcd, NVidia nForce2, eth0
20: 8357530 IO-APIC-level ehci_hcd, NVidia nForce2, eth0
--
|| ~~~~~~~~~~~~~~~~~~~~~~ ||
( ) http://ThinRope.net/ ( )
|| ______________________ ||
^ permalink raw reply [flat|nested] 5+ messages in thread* Re: [2.6.7] Ehci controller interrupts like crazy on nforce2
2004-07-09 1:16 Jonathan Filiatrault
2004-07-09 3:10 ` Kalin KOZHUHAROV
@ 2004-07-11 12:09 ` Daniel Schmitt
2004-07-11 15:28 ` Jonathan Filiatrault
1 sibling, 1 reply; 5+ messages in thread
From: Daniel Schmitt @ 2004-07-11 12:09 UTC (permalink / raw)
To: linux-kernel; +Cc: Jonathan Filiatrault
On Friday 09 July 2004 03:16, Jonathan Filiatrault wrote:
> Here it is: another nforce2 hardware bug. The ehci controller seems to
> send a massive number of interrupts to the kernel (264379 per second).
> This uses about 5 to 10% of the cpu. This shows up in top in the
> "hi"(hard interrupts) indicator. Nothing unusual shows up in the kernel
> log. My system has an Asus A7N8X Nforce2 Board with an Athlon XP 2800+
> mounted on it.
I've seen this problem on my board (Epox 8RDA3+) as well. The root cause seems
to be interrupt link devices enabled without regard for the actual device
status. A recent patch that delayed IRQ assignment to device activiation time
fixed this for me; you might want to try a fresh -mm or -bk kernel.
Hope that helps,
Daniel.
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [2.6.7] Ehci controller interrupts like crazy on nforce2
2004-07-11 12:09 ` Daniel Schmitt
@ 2004-07-11 15:28 ` Jonathan Filiatrault
0 siblings, 0 replies; 5+ messages in thread
From: Jonathan Filiatrault @ 2004-07-11 15:28 UTC (permalink / raw)
To: Daniel Schmitt; +Cc: linux-kernel
>I've seen this problem on my board (Epox 8RDA3+) as well. The root cause seems
>
>to be interrupt link devices enabled without regard for the actual device
>status. A recent patch that delayed IRQ assignment to device activiation time
>fixed this for me; you might want to try a fresh -mm or -bk kernel.
>
2.6.7-bk21 fixed this problem for me, thanks
>
>Hope that helps,
>
it sure did.
Happy Hacking,
Joe
^ permalink raw reply [flat|nested] 5+ messages in thread
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2004-07-11 2:40 ` [2.6.7] Ehci controller interrupts like crazy on nforce2 Len Brown
2004-07-09 1:16 Jonathan Filiatrault
2004-07-09 3:10 ` Kalin KOZHUHAROV
2004-07-11 12:09 ` Daniel Schmitt
2004-07-11 15:28 ` Jonathan Filiatrault
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