Messages in this thread | | | From | Nikos Chantziaras <> | Subject | Re: do_IRQ: 0.83/0.84 No irq handler for vector | Date | Sun, 27 Jul 2008 23:19:43 +0300 |
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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
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