[CentOS] Loss of Ethernet adaptor

[James B. Byrne]

On Mon, June 9, 2014 11:46, Steve Clark wrote:
>
> Hi,
>
> Don't know if you saw my prior email, but we experienced this exact same
> problem see log excerpts below:
> ...
> Jul 31 17:05:18 wolfpac kernel: pciehp 0000:00:1c.5:pcie04: Card not present
> on Slot(37)
> Jul 31 17:05:18 wolfpac kernel: pciehp 0000:00:1c.5:pcie04: Card present on
> Slot(37)
> Jul 31 17:05:18 wolfpac kernel: device eth5 left promiscuous mode
> Jul 31 17:05:19 wolfpac kernel: e1000e 0000:07:00.0: PCI INT A disabled
> Jul 31 17:05:20 wolfpac ntpd[2726]: Deleting interface #7 eth5,
> 192.168.198.95#123, interface stats: received=517, sent=522, dropped=0,
> active_time=108106 secs
> Jul 31 17:05:20 wolfpac ntpd[2726]: Deleting interface #8 eth5,
> fe80::290:bff:fe2a:acf3#123, interface stats: received=0, sent=0, dropped=0,
> active_time=108039 secs
> ...
>
> This would randomly happen on systems that weren't connected directly to the
> internet.
> We experienced this on multiple systems. Since we upgraded to the latest
> elrepo driver and added
> pcie_aspm=off to our kernel command line we have never experienced the issue
> again.

Thank you.  I did get your message and I simply have not had time to test its
implementation as it necessarily involves a restart of the test system.  I am
trying to discover if there is some way of restarting a headless server and
use a specific grub entry instead of the default.  I want to leave the default
unchanged until I can prove that any manual changes I make do not negatively
impact a system restart.

If anyone knows if this is possible and if so, how it is done, I would welcome
the information.

Regards,

-- 
***          E-Mail is NOT a SECURE channel          ***
James B. Byrne                mailto:ByrneJB at Harte-Lyne.ca
Harte & Lyne Limited          http://www.harte-lyne.ca
9 Brockley Drive              vox: +1 905 561 1241
Hamilton, Ontario             fax: +1 905 561 0757
Canada  L8E 3C3