[Asterisk-Users] TE410P: Double/missed interrupt detected

[Mark Spencer]

It won't cause any sort of serious problem, but you are getting it with an
unusually high frequency.  What's particularly interesting is that it
occurs almost exactly once per minute, on the minute.  This would seem to
suggest that you have some hardware in your system which, once per minute,
is blocking interrupts.

A quick check of:

# find . -iname '*.[ch]' | xargs grep HZ | grep 60

in /usr/src/linux-2.4 reveals the following drivers do things once per
minute, so if you have any of these, you might try disabling them (I'm
*NOT* saying all these are incompatible, just that they would be suspect
because they do something once per minute):

arch/i386/kernel/mxt.c (Memory eXpansion Technology)
drivers/block/DAC960 (Mylex PCI RAID controller)
drivers/ide/ide-tape.c (IDE Tape device)
drivers/isdn/avmb1/capidrv.c (CAPI ISDN support)
drivers/message/fusion/mptbase.c: Fiberchannel + SCSI + LAN
drivers/net/8139too.c: NE2000 general driver (PCI and ISA I think)
drivers/net/3c59x.c: 3Com 59X/90X ethernet driver
drivers/net/arcnet.c: ARCnet driver
drivers/net/natsemi.c: National Semiconductor Ethernet driver
drivers/net/strip.c: Radio IP
drivers/net/trulip.c: DEC Tulip based net cards
drivers/scsi/sd.c: SCSI Disk something or other

Anyway "lsmod" is your friend and tell me if you have any of these and if
removing them makes the message go away.

Mark



On Fri, 3 Oct 2003, Ken Godee wrote:

> Any ideas on the following? (CVS 10/01/2003)
> Only reference I could find was a Zaptel change log update...
>
> 2003-09-02 18:23  martinp
> * wct4xxp.c (1.6): Get rid of the Double missed interrupt message
> every time you load the driver
> and an email refering this to serial console usage.
> Something I should worry about?
>
> Oct  3 22:48:01 cti-350 kernel: TE410P: Double/missed interrupt detected
> Oct  3 22:49:01 cti-350 kernel: TE410P: Double/missed interrupt detected
> Oct  3 22:52:01 cti-350 last message repeated 2 times
> Oct  3 22:54:01 cti-350 last message repeated 3 times
> Oct  3 22:56:01 cti-350 last message repeated 2 times
> Oct  3 22:58:01 cti-350 last message repeated 2 times
> Oct  3 23:00:01 cti-350 last message repeated 2 times
> Oct  3 23:03:01 cti-350 last message repeated 2 times
> Oct  3 23:05:01 cti-350 last message repeated 2 times
> Oct  3 23:07:01 cti-350 last message repeated 2 times
> Oct  3 23:09:01 cti-350 last message repeated 2 times
> Oct  3 23:11:01 cti-350 last message repeated 2 times
> Oct  3 23:14:01 cti-350 last message repeated 2 times
> Oct  3 23:16:01 cti-350 last message repeated 2 times
> Oct  3 23:18:01 cti-350 last message repeated 2 times
> Oct  3 23:20:01 cti-350 last message repeated 2 times
> Oct  3 23:22:01 cti-350 last message repeated 2 times
> Oct  3 23:25:01 cti-350 last message repeated 2 times
> Oct  3 23:27:01 cti-350 last message repeated 3 times
>
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