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SubjectRe: kobject_add_internal failed for msi_irqs with -EEXIST
Dne 27.9.2013 18:01, Veaceslav Falico napsal(a):
> On Fri, Sep 27, 2013 at 09:58:28AM -0600, Bjorn Helgaas wrote:
>> [+cc Veaceslav, linux-pci]
>> On Fri, Sep 27, 2013 at 7:34 AM, Zdenek Kabelac <> wrote:
>>> Hi
>>> With recent build of 3.12-rc2 I'm getting this warning report from kernel:
>>> (hw Lenovo T61, C2D, 4GB Ram)
>>> (repost since linux-kernel@ rejected my gmail email....)
>> This looks related to the MSI/kobject issues Veaceslav is working on.
>> See
>> and related messages.
>> We don't have a resolution yet. If you have
>> CONFIG_DEBUG_KOBJECT_RELEASE=y, you could try turning that off. I
>> don't know if it would help, and it would only be a temporary
>> workaround anyway.
> I've looked at the original post -
> hope that's it - and it seems that it's disabling DEBUG_KOBJECT_RELEASE
> won't help - the warning is about the re-registering, not about freeing it.
> As a workaround I'd suggest adding some kind of delay between removing and
> adding the msi - as in - rmmod e1000e; sleep 1; modprobe e1000e; - or
> something like that, so that there is enough time for the /msqi_irqs/ to go
> away.

I'm not readding e1000e modules myself - however I've no idea what
NetworkManager does. Here are messages prior warning:

NetworkManager[304]: <info> monitoring kernel firmware directory '/lib/firmware'.
NetworkManager[304]: <info> rfkill1: found WiFi radio killswitch (at
(driver iwl3945)
NetworkManager[304]: <info> WiFi hardware radio set enabled
NetworkManager[304]: <info> WiFi enabled by radio killswitch; enabled by state
NetworkManager[304]: <info> WWAN enabled by radio killswitch; disabled by
state file
NetworkManager[304]: <info> WiMAX enabled by radio killswitch; enabled by
state file
NetworkManager[304]: <info> Networking is enabled by state file
NetworkManager[304]: <info> (eth0): carrier is OFF
NetworkManager[304]: <info> (eth0): new Ethernet device (driver: 'e1000e'
ifindex: 2)
NetworkManager[304]: <info> (eth0): exported as
NetworkManager[304]: <info> (eth0): device state change: unmanaged ->
unavailable (reason 'managed') [10 20 2]
NetworkManager[304]: <info> (eth0): bringing up device.
rpcbind: cannot create socket for udp6
rpcbind: cannot create socket for tcp6
kernel: [ 5.727025] WARNING! power/level is deprecated; use power/control

So it looks like 'bringing up' causes recreation of msi_irqs ?


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