2015-04-16 18:08:54

by rh_

[permalink] [raw]
Subject: [net:r8169] kernel 4.0.0 double "link down" on boot

I see these double "link down" now in 4.0

[ 19.927880] r8169 0000:03:00.2 eth0: link down
[ 19.927902] r8169 0000:03:00.2 eth0: link down
[ 22.328888] r8169 0000:03:00.2 eth0: link up

Everything seems to be working fine. Is this an indicator of a problem?
Safe to ignore? If so why?

These files seem to be implicated but I say so because they
contain "link down\n"

drivers/net/mii.c
drivers/net/ethernet/dnet.c

drivers/net/ethernet/realtek/r8169.c

Does it make sense to check 3.19? I don't recall seeing these
there. Oh, I'm using rtl8411-1.fw, will try rtl8411-2.fw.

Have a nice day!


2015-04-16 23:20:29

by Francois Romieu

[permalink] [raw]
Subject: Re: [net:r8169] kernel 4.0.0 double "link down" on boot

rh_ <[email protected]> :
> I see these double "link down" now in 4.0
>
> [ 19.927880] r8169 0000:03:00.2 eth0: link down
> [ 19.927902] r8169 0000:03:00.2 eth0: link down
> [ 22.328888] r8169 0000:03:00.2 eth0: link up
>
> Everything seems to be working fine. Is this an indicator of a problem?

No.

> Safe to ignore?

Mostly.

> If so why?

The driver is notified of a link event. It schedules a link check.
The link may be back to its original state before the driver notices
the change.

As long as you don't experience high frequency link events for an
extended duration, you should not care.

[...]
> Does it make sense to check 3.19 ?

No.

--
Ueimor