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    DateWed, 18 Oct 2006 08:34:31 +0200
    FromMartin Lorenz <>
    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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    Dipl.-Ing. Martin Lorenz
    
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