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Re: [Xen-users] Ubuntu Xen Kernel linux-image-4.15.0-64-generic no network devices



On 2019-09-27 16:39, Sarah Newman wrote:
On 9/27/19 4:35 PM, Bill MacAllister wrote:
On 2019-09-27 13:38, Sarah Newman wrote:
On 9/27/19 11:00 AM, Bill MacAllister wrote:
I applied package dates, i.e. apt full-upgrade, to a Ubuntu 18.04 system and when it rebooted there were no network devices.  The new kernel version is linux-image-4.15.0-64-generic.  When I rebooted the system with the older linux-image-4.15.0-54-generic kernel the network devices reappeared. I would
appreciate some suggestions on how to decipher this problem.

Thanks,

Bill


I'm assuming you mean a domU, not a dom0. We've booted that exact
kernel both in PV and HVM mode with no issues.

No, I do mean dom0.  None of the domU's were willing to come up with the
network in place.

Did you have any messages related to eth0 or xen_netfront from dmesg?
Is it reproducible?

Yes, it is reproducible.  I will need to reboot the system to get exact
messages from dmesg.  I do that later tonight.

If it's the dom0, I think it's less likely to be a xen specific issue.
The first thing I would check is whether one of the partitions ran out
of space or if one of the extra kernel module packages didn't get
installed. You can compare the contents of /lib/modules for each
version against each other.

--Sarah

Thanks a ton Sarah. That was the exactly the right thing to look at. For some reason the "apt full-upgrade" did not install the new version of the linux-modules-extra package, specifically linux-modules-extra-4.15.0-64-generic. Installing that loaded up the complete set of bnx2 modules and support for
the Broadcom NIC.

Bill

--
Bill MacAllister <bill@xxxxxxxxxxxxx>

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