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Subjectun/shared IRQ problem (was: Re: 2.6.18 - another DWARF2)
On Tue, Oct 17, 2006 at 11:52:16AM -0700, Jesse Brandeburg wrote:
> On 10/16/06, Martin Lorenz <martin@lorenz.eu.org> wrote:
> >just got the following on resume:
> >
> >[87026.706000] [<c0251745>] e1000_open+0xcd/0x1a4
> >[87026.714000] DWARF2 unwinder stuck at syscall_call+0x7/0xb
> >[87026.715000] Leftover inexact backtrace:
> >[87026.715000] e1000: eth0: e1000_request_irq: Unable to allocate interrupt
> >Error: -16
>
> I'm pretty sure this isn't an e1000 problem. you need to talk to
> whoever is maintaining the IRQ subsystem for x86. E1000 is attempting
> to register a shared interrupt and someone has already registered that
> interrupt unshared.

interestingly though it always involves e1000 when I see dumps like this.
I already reported more of those :-)
this one dosen't seem to do any harm to system stability. it occurs on every
suspend/resume and I can circumvent it by disabling msi

>
> looks like several devices are sharing IRQ 201 (aka GSI 16) and ahci
> or usb uhci_hcd is likely the problem, or the (acpi) power management
> subsystem.
>
> Hope this helps get the right people involved.

thank you

gruss
mlo
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