netdev - RE: e1000e: Disabling IRQ #57 .. machine dies

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Date:	Fri, 14 Sep 2012 16:40:38 +0000
From:	"Wyborny, Carolyn" <carolyn.wyborny@...el.com>
To:	Cristian Rodríguez <crrodriguez@...nsuse.org>,
	Netdev <netdev@...r.kernel.org>
Subject: RE: e1000e: Disabling IRQ #57 .. machine dies

> -----Original Message-----
> From: netdev-owner@...r.kernel.org [mailto:netdev-owner@...r.kernel.org]
> On Behalf Of Cristian Rodríguez
> Sent: Tuesday, September 11, 2012 11:50 AM
> To: Netdev
> Subject: e1000e: Disabling IRQ #57 .. machine dies
> 
> Hi:
> 
> In current linus tree, in a machine using the e1000e driver
> 
> hwinfo --netcard
> 22: PCI 400.0: 0200 Ethernet controller
>   [Created at pci.319]
>   Unique ID: rBUF.cuT2KaC3ZS1
>   Parent ID: HnsE.Z52SDLRIaH2
>   SysFS ID: /devices/pci0000:00/0000:00:1c.5/0000:04:00.0
>   SysFS BusID: 0000:04:00.0
>   Hardware Class: network
>   Model: "Intel 82574L Gigabit Network Connection"
>   Vendor: pci 0x8086 "Intel Corporation"
>   Device: pci 0x10d3 "82574L Gigabit Network Connection"
>   SubVendor: pci 0x1043 "ASUSTeK Computer Inc."
>   SubDevice: pci 0x8369
>   Driver: "e1000e"
>   Driver Modules: "e1000e"
>   Device File: eth0
>   Memory Range: 0xf7d00000-0xf7d1ffff (rw,non-prefetchable)
>   I/O Ports: 0xd000-0xdfff (rw)
>   Memory Range: 0xf7d20000-0xf7d23fff (rw,non-prefetchable)
>   IRQ: 17 (no events)
>   Link detected: yes
>   Module Alias: "pci:v00008086d000010D3sv00001043sd00008369bc02sc00i00"
>   Driver Info #0:
>     Driver Status: e1000e is active
>     Driver Activation Cmd: "modprobe e1000e"
>   Config Status: cfg=no, avail=yes, need=no, active=unknown
>   Attached to: #15 (PCI bridge)
> 
> 
> 
> cat /proc/interrupts
> 
> 57 IR-PCI-MSI-edge      eth0
> 
> the driver works after a while, but then a single message
> 
> "Disabling IRQ #57"
> 

Hello,

I'm sorry you're having problems with out parts.  Can you provide some more info on this issue?  What version of the driver are you using?  Is the only problem that this driver dies or are there other symptoms?  What does the dmesg say for the e1000e driver at load?  It usually list whether its using MSI/MSI-X, and some other info.  Can you provide an lspci -vvv output for the 82574L device and the dmesg info?  Is the "Disabling IRQ #57 message appearing in the dmesg log or somewhere else?  Can you try loading the driver with the module parameter IntMode=0 to try the device in legacy interrupt mode, if its not already in that mode.

Thanks,

Carolyn

Carolyn Wyborny
Linux Development
LAN Access Division
Intel Corporation


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