[Ksummit-2010-discuss] checkpoint-restart: naked patch

Alexey Dobriyan adobriyan at gmail.com
Fri Nov 19 08:00:22 PST 2010

On Fri, Nov 19, 2010 at 5:33 PM, Tejun Heo <tj at kernel.org> wrote:
>> - insert SKB's into socket buffers
> Can't we drain kernel buffers?  ie. Stop further writing and wait the
> send-q to drop to zero.

On send:
if network dies right after freeze, you lose.

On receive:
packets arrive after process freeze, but before network device freeze.

>> - setting different statistics counters (like netdev stats etc.)
>> and so on...
> Why would this matter?

Because you'll introduce million stupid interfaces not interesting to
anyone but C/R.

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