unexpected IRQ trap at vector a0

unexpected IRQ trap at vector a0

[Yaroslav Halchenko]

Dear developers and bug-finders,

I've got a new desktop - some kind of Pentium IV with hyper-threading,
so immediately decided to switch it to 2.6.0-test2-bk8 kernel which was
running on my desktop/laptops for quite a while, but I've got next
problem: when it boots I begin getting my console as well as
syslog/messages flooded with

unexpected IRQ trap at vector a0

(actually first it hanged with PNPBIOS problem - I turned it off)

I modified kernel a bit to don't get all my dmesg filled with only
this error message, so now it is reported only on 1st occurrence (as
well as next string Yarik: APIC is On).

So this error fires up for the first time in the context:

   i2c-piix4 version 2.7.0 (20021208)
   Advanced Linux Sound Architecture Driver Version 0.9.6 (Mon Jul 28
11:08:42 2003 UTC).
   request_module: failed /sbin/modprobe -- snd-card-0. error = -16
   specify port
   specify port
   PCI: Setting latency timer of device 0000:00:1f.5 to 64
unexpected IRQ trap at vector a0
   intel8x0: clocking to 48000
   ALSA device list:
     #0: Intel ICH5 at 0xfebff800, irq 17
   
And later I'm getting also 
IPv6 over IPv4 tunneling driver
irq 9: nobody cared!
Call Trace:
 [<c010b347>] __report_bad_irq+0x2a/0x8b
 [<c010b431>] note_interrupt+0x6f/0x9f
 [<c010b748>] do_IRQ+0x161/0x192
 [<c0109a9c>] common_interrupt+0x18/0x20
 [<c010b2dd>] handle_IRQ_event+0x24/0x64
 [<c010b69f>] do_IRQ+0xb8/0x192
 [<c0105000>] _stext+0x0/0x64
 [<c0109a9c>] common_interrupt+0x18/0x20
 [<c0106e1e>] default_idle+0x0/0x2c
 [<c0105000>] _stext+0x0/0x64
 [<c0106e47>] default_idle+0x29/0x2c
 [<c0106eb7>] cpu_idle+0x3a/0x3c
 [<c045481f>] start_kernel+0x16c/0x183
 [<c045440e>] unknown_bootoption+0x0/0xfd

handlers:
[<c01f807f>] (acpi_irq+0x0/0x16)
Disabling IRQ #9


My logs and kernel configuration (it was patched by
sched-2.6.0-test1-G7, though error existed in pure vanilla kernel as
well - I just already had compiled patched version in my hands already
so decided to proceed with it)

http://www.onerussian.com/acpi.PIV/

I will provide any additional necessary information.

Thank you in advance for your help

                                  .-.
=------------------------------   /v\  ----------------------------=
Keep in touch                    // \\     (yoh@|www.)onerussian.com
Yaroslav Halchenko              /(   )\               ICQ#: 60653192
                   Linux User    ^^-^^    [175555]

Re: unexpected IRQ trap at vector a0

[Christian Reichert]

Hi !


The boot option you have tried is not compleately correct.

Please gove it one try with option:

   pci=noacpi

if that doesn't help try:

   acpi=off

and let us know the results ...


Cheers,
    Chris


On Sat, 2003-08-09 at 04:25, Yaroslav Halchenko wrote:
> Dear developers and bug-finders,
> 
> I've got a new desktop - some kind of Pentium IV with hyper-threading,
> so immediately decided to switch it to 2.6.0-test2-bk8 kernel which was
> running on my desktop/laptops for quite a while, but I've got next
> problem: when it boots I begin getting my console as well as
> syslog/messages flooded with
> 
> unexpected IRQ trap at vector a0
> 
> (actually first it hanged with PNPBIOS problem - I turned it off)
> 
> I modified kernel a bit to don't get all my dmesg filled with only
> this error message, so now it is reported only on 1st occurrence (as
> well as next string Yarik: APIC is On).
> 
> So this error fires up for the first time in the context:
> 
>    i2c-piix4 version 2.7.0 (20021208)
>    Advanced Linux Sound Architecture Driver Version 0.9.6 (Mon Jul 28
> 11:08:42 2003 UTC).
>    request_module: failed /sbin/modprobe -- snd-card-0. error = -16
>    specify port
>    specify port
>    PCI: Setting latency timer of device 0000:00:1f.5 to 64
> unexpected IRQ trap at vector a0
>    intel8x0: clocking to 48000
>    ALSA device list:
>      #0: Intel ICH5 at 0xfebff800, irq 17
>    
> And later I'm getting also 
> IPv6 over IPv4 tunneling driver
> irq 9: nobody cared!
> Call Trace:
>  [<c010b347>] __report_bad_irq+0x2a/0x8b
>  [<c010b431>] note_interrupt+0x6f/0x9f
>  [<c010b748>] do_IRQ+0x161/0x192
>  [<c0109a9c>] common_interrupt+0x18/0x20
>  [<c010b2dd>] handle_IRQ_event+0x24/0x64
>  [<c010b69f>] do_IRQ+0xb8/0x192
>  [<c0105000>] _stext+0x0/0x64
>  [<c0109a9c>] common_interrupt+0x18/0x20
>  [<c0106e1e>] default_idle+0x0/0x2c
>  [<c0105000>] _stext+0x0/0x64
>  [<c0106e47>] default_idle+0x29/0x2c
>  [<c0106eb7>] cpu_idle+0x3a/0x3c
>  [<c045481f>] start_kernel+0x16c/0x183
>  [<c045440e>] unknown_bootoption+0x0/0xfd
> 
> handlers:
> [<c01f807f>] (acpi_irq+0x0/0x16)
> Disabling IRQ #9
> 
> 
> My logs and kernel configuration (it was patched by
> sched-2.6.0-test1-G7, though error existed in pure vanilla kernel as
> well - I just already had compiled patched version in my hands already
> so decided to proceed with it)
> 
> http://www.onerussian.com/acpi.PIV/
> 
> I will provide any additional necessary information.
> 
> Thank you in advance for your help
> 
>                                   .-.
> =------------------------------   /v\  ----------------------------=
> Keep in touch                    // \\     (yoh@|www.)onerussian.com
> Yaroslav Halchenko              /(   )\               ICQ#: 60653192
>                    Linux User    ^^-^^    [175555]
> -
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Re: unexpected IRQ trap at vector a0

[Zwane Mwaikambo]

On Fri, 8 Aug 2003, Yaroslav Halchenko wrote:

> Dear developers and bug-finders,
> 
> I've got a new desktop - some kind of Pentium IV with hyper-threading,
> so immediately decided to switch it to 2.6.0-test2-bk8 kernel which was
> running on my desktop/laptops for quite a while, but I've got next
> problem: when it boots I begin getting my console as well as
> syslog/messages flooded with
> 
> unexpected IRQ trap at vector a0

  9:     100000          0          XT-PIC  acpi

Cute, the interrupt storm monitor caught it dead =) Can you verify whether 
booting with the kernel parameter noirqdebug 'fixes' things? Also boot 
with the 'debug' kernel parameter as it will print out things like what is 
at vector a0.

Thanks,
	Zwane

Re: unexpected IRQ trap at vector a0

[Yaroslav Halchenko]

Thank you guys for problem-pinning-down answers!

First I've tried
acpi=off

the kernel crashed right at the beginning of boot with smth like

oops: 0000[#1]

EOP is at acpi_pci_register_driver + 0x30/0x5c

Call trace: acpiphp_glue_init+0x1b/0x31
.....

But then,,,,

> > unexpected IRQ trap at vector a0
> 
>   9:     100000          0          XT-PIC  acpi
> 
> Cute, the interrupt storm monitor caught it dead =) Can you verify whether 
> booting with the kernel parameter noirqdebug 'fixes' things? Also boot 
> with the 'debug' kernel parameter as it will print out things like what is 
> at vector a0.

Uau - noirqdebug seems to "fix" the problem - I don't get complains any
more at least - will research other weirdness of system behaviour for
now with -test3 kernel!

Thank you!

> Thanks,
> 	Zwane
Thank you!

                                  .-.
=------------------------------   /v\  ----------------------------=
Keep in touch                    // \\     (yoh@|www.)onerussian.com
Yaroslav Halchenko              /(   )\               ICQ#: 60653192
                   Linux User    ^^-^^    [175555]