RFC: add built-in support for kvm devices to -virtual kernels
thierry.carrez at canonical.com
Thu Jan 21 07:56:07 GMT 2010
Scott Moser wrote:
> If we decide that CONFIG_SCSI_SYM53C8XX_2=y is too risky, then our options
> 1.) drop the ramdiskless boot from uec
> 2.) move '-virtual' from being a 'sub-flavour' to a full 'flavour' build.
Could kernel experts precise what type of risk we are talking about here ?
My concern is that this could create incompatibilities with specific
hardware, that would:
- have worked very well for all the past releases
- only be discovered when people start to exercise that specific
hardware after release
If that's the case, it sounds like a bad move for a LTS release... The
net gain of having a ramdiskless UEC image would be clearly outweighed
by the risk that would introduce.
About the "moving from sub-flavour to full flavour" option, how costly
would this be ? That sounds like the best option if the -virtual kernel
is set to diverge more and more from the regular server kernels. As we
try to be host-friendly to an increasing number of cloud environments,
that might well be the case...
Ubuntu Server team
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