[mythtv-users] IOBOUND errors after kernel upgrade from 2.6.31 to 2.6.32

[Tom Dexter]

On Wed, Apr 28, 2010 at 10:09 AM, John Drescher <drescherjm at gmail.com> wrote:
> On Wed, Apr 28, 2010 at 9:20 AM, freedenizen <freedenizen at gmail.com> wrote:
>> On Tue, Apr 27, 2010 at 9:07 PM, Tom Dexter <digitalaudiorock at gmail.com> wrote:
>>> Just to be clear:  I upgrade kernels by copying my previous .config
>>> file to the new kernel source directory and using "make oldconfig".
>>> So generally the only differences tend to be with new features.
>>
>> to quote the gentoo kernel upgrade guide:
>> http://www.gentoo.org/doc/en/kernel-upgrade.xml#doc_chap10
>>
>> "It is sometimes possible to save time by re-using the configuration
>> file from your old kernel when configuring the new one. Note that this
>> is generally unsafe -- too many changes between every kernel release
>> for this to be a reliable upgrade path.
>> The only situation where this is appropriate is when upgrading from
>> one Gentoo kernel revision to another. For example, the changes made
>> between gentoo-sources-2.6.9-r1 and gentoo-sources-2.6.9-r2 will be
>> very small, so it is usually OK to use the following method."
>>
>> So, this may not be the problem, but copying .config files, even
>> between minor kernel releases is not recommended and may cause
>> unintended side effects.
>
> I have never experienced any problems with this in at least 500 kernel
> compiles this way on 50+ gentoo machines in the last 6 years so it's
> not like problems are highly likely to occur.
>
> For the OP I would just try the 2.6.33 kernel.
>
> John

Thanks John!  I might just try that.  I was going to say that you'd be
pretty hard pressed to find any Gentoo user that configures the entire
kernel from the defaults in order to upgrade.  If that's how you had
to do it even I might quit Gentoo :D...and I'm a huge fanboy.  It's
not like the kernel make process is very likely to let an invalid
config get through or something.

There's definitely something different in 2.6.32.  All those IOBOUND
errors do in fact go away when I reboot to 2.6.31.

Tom