On Monday 14 April 2008 11:36:43 Jan Henrik Sylvester wrote:
> lysergius2001 wrote:
> > Recently installed 7.0-RELEASE on an i386 as upgrade from 6.3-RELEASE and
> > now have a continuous interrupt storm on IRQ17. This is a shared IRQ for
> > ath0 and echi0. Never saw this on 6.3??? Any suggestions?
>
> Just another contribution to the collection of interrupt storms maybe
> related to ath:
>
> Whenever I plug in my ath1 on cardbus0, I get exactly one storm:
> interrupt storm detected on "irq10:"; throttling interrupt source
>
> ath1: <Atheros 5212> mem 0xd0220000-0xd022ffff irq 10 at device 0.0 on
> cardbus0
>
> Anyhow, I am not sure, if it is really ath causing this. During boot, I
> get one storm, too, that is on irq 10, but my ath0 on pci2 is on irq 9:
>
> ath0: <Atheros 5212> mem 0xd0200000-0xd020ffff irq 9 at device 4.0 on pci2
> [...]
> interrupt storm detected on "irq10:"; throttling interrupt source
>
> I do not get interrupt storms on irq 9 and I have already had that storm
> before I replaced my minipci iwi0 with ath0:
>
> http://lists.freebsd.org/pipermail/freebsd-current/2007-October/078684.html
>
> The reply to that posting was that it is probably related to USB:
>
> http://lists.freebsd.org/pipermail/freebsd-current/2007-October/078687.html
>
> Moreover, I have a bunch of other devices sharing irq 10:
>
> vgapci0: <VGA-compatible display> port 0x3000-0x30ff mem
> 0xd8000000-0xdfffffff,0xd0100000-0xd010ffff irq 10 at device 0.0 on pci1
> uhci0: <Intel 82801DB (ICH4) USB controller USB-A> port 0x1800-0x181f
> irq 10 at device 29.0 on pci0
> uhci2: <Intel 82801DB (ICH4) USB controller USB-C> port 0x1840-0x185f
> irq 10 at device 29.2 on pci0
> ehci0: <Intel 82801DB/L/M (ICH4) USB 2.0 controller> mem
> 0xd0000000-0xd00003ff irq 10 at device 29.7 on pci0
> fwohci0: <Texas Instruments TSB43AB21/A/AI/A-EP> mem
> 0xd0218000-0xd02187ff,0xd0210000-0xd0213fff irq 10 at device 7.0 on pci2
> pcm0: <Intel ICH4 (82801DB)> port 0x1c00-0x1cff,0x18c0-0x18ff mem
> 0xd0000c00-0xd0000dff,0xd0000800-0xd00008ff irq 10 at device 31.5 on pci0
>
> On our problematic irq, we both have got echi0. Thus, the second storm I
> get upon attaching ath1 might not be directly caused by ath.
>
> No suggestions, just more data.
I dug through daily security runs and \o/ the machine got rebooted one time,
so I got a dmesg:
+uhci0: <Intel 82371AB/EB (PIIX4) USB controller> port 0xdce0-0xdcff irq 11 at
device 7.2 on pci0
+uhci0: [GIANT-LOCKED]
+ath0: <Atheros 5212> mem 0x88000000-0x8800ffff irq 11 at device 0.0 on
cardbus0
+ath0: Ethernet address: 00:11:95:69:1d:eb
+ath0: mac 7.9 phy 4.5 radio 5.6
Not ehci, but uhci. Still...
I can't find if it had cpufreq. The kernel config I still have and it had it
compiled in, but it doesn't show in the dmesg. Only power/sleep button, lid
switch and thermal zone.
A typical storm session looks like this:
+ath0: link state changed to DOWN
+interrupt storm detected on "irq11:"; throttling interrupt source
+interrupt storm detected on "irq11:"; throttling interrupt source
+interrupt storm detected on "irq11:"; throttling interrupt source
+interrupt storm detected on "irq11:"; throttling interrupt source
+interrupt storm detected on "irq11:"; throttling interrupt source
+interrupt storm detected on "irq11:"; throttling interrupt source
+interrupt storm detected on "irq11:"; throttling interrupt source
+interrupt storm detected on "irq11:"; throttling interrupt source
+interrupt storm detected on "irq11:"; throttling interrupt source
+interrupt storm detected on "irq11:"; throttling interrupt source
+interrupt storm detected on "irq11:"; throttling interrupt source
+ath0: link state changed to UP
--
Mel
Problem with today's modular software: they start with the modules
and never get to the software part.
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