Re: do_IRQ: 0.83/0.84 No irq handler for vector

[Nikos Chantziaras]

Robert Hancock wrote:
> Nikos Chantziaras wrote:
> > Nikos Chantziaras wrote:
> > > Kernel 2.6.26 (on x86-64) gives "do_IRQ: 0.83 No irq handler for 
> > > vector" (and "do_IRQ: 0.83", but less often) warnings periodically.
> >
> > I changed the kernel config:
> >
> >   - CONFIG_PCI_MSI=y
> >   + # CONFIG_PCI_MSI is not set
> >
> > In other words I disabled Message Signaled Interrupt support.  Now 
> > instead of "do_IRQ: 0.83 No irq handler for vector" I get:
> >
> >   +------ PCI-Express Device Error ------+
> >   Error Severity          : Uncorrected (Non-Fatal)
> >   PCIE Bus Error type     : Transaction Layer
> >   Flow Control Protocol   : First
> >   Receiver ID             : 0010
> >   VendorID=1106h, DeviceID=a208h, Bus=00h, Device=02h, Function=00h
> >   Broadcast error_detected message
> >   Broadcast mmio_enabled message
> >   Broadcast resume message
> >   AER driver successfully recovered
> >
> > (Repeated as many times as the "do_IRQ" message previously.)
> >
> > In case someone needs it, this is my complete dmesg:
> >
> >   http://realnc.pastebin.com/d6534029
> >
> > and this is the kernel configuration: 
> > http://bugs.freedesktop.org/attachment.cgi?id=17912
>
> My guess is some device is that some device is generating MSI interrupts 
> without any handler being registered for it, and with MSI support 
> disabled it now generates a master abort instead. Most likely whatever 
> device is connected to the Bus=00h, Device=02h, Function=00h bridge. Can 
> you post "lspci -vv" output?

The device in question is my graphics card (an AMD/ATI Radeon X1950XT 
PCI-e):

02:00.0 VGA compatible controller: ATI Technologies Inc R580 [Radeon 
X1900] (prog-if 00 [VGA controller])
02:00.1 Display controller: ATI Technologies Inc Unknown device 7264

02:00.1 should be the card's second head I guess?

Here's the complete lspci -vv: http://realnc.pastebin.com/m6ac97572

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/