Re: [Qemu-devel] [PATCH 3/4] linux-user: set minimum kernel version to2.6.322

[Peter Maydell]

On 4 March 2014 11:32, Alex Bennée <address@hidden> wrote:
>
> address@hidden writes:
>
>> From: Riku Voipio <address@hidden>
>>
>> Popular glibc based distributions[1] require minimum
>> 2.6.32 as kernel version. For some targets 2.6.18
>> would be enough, but dropping so low would mean some
>> suboptimal system calls could get used.
>
> Is the effect of this to report system uname or minimum whichever is higher?

That's what this patch does. The old configure stuff which
this patchset removed made it report "always that version",
IIRC.

>> Set the minimum kernel advertized to 2.6.32 for
>> all architectures but aarch64 to ensure working qemu
>> linux-user in case host kernel is older.
>
> So was skipping setting it for aarch64 deliberate?

Yes, it already sets the minimum higher than this.

>It would be nice to
> have an upstream fix for the hacks the distros are adding.

I think that's what this patchset is supposed to be :-)

> I believe they are patching UNAME to 3.7.0 for aarch64.

Only to the extent that they're still carrying bogus patches
borrowed from the SuSE tree rather than using the better
way of setting per-arch minumum reported uname that we
applied upstream.

thanks
-- PMM