Re: raw disks no longer work in latest kvm (kvm-88 was fine)

[Antoine Martin]

On 03/08/2010 02:35 AM, Avi Kivity wrote:

On 03/07/2010 09:25 PM, Antoine Martin wrote:

On 03/08/2010 02:17 AM, Avi Kivity wrote:

On 03/07/2010 09:13 PM, Antoine Martin wrote:

What version of glibc do you have installed?

Latest stable:
sys-devel/gcc-4.3.4
sys-libs/glibc-2.10.1-r1

$ git show glibc-2.10~108 | head
commit e109c6124fe121618e42ba882e2a0af6e97b8efc
Author: Ulrich Drepper <drep...@redhat.com>
Date:   Fri Apr 3 19:57:16 2009 +0000

* misc/Makefile (routines): Add preadv, preadv64, pwritev, pwritev64.

* misc/Versions: Export preadv, preadv64, pwritev, pwritev64 for

        GLIBC_2.10.
        * misc/sys/uio.h: Declare preadv, preadv64, pwritev, pwritev64.

* sysdeps/unix/sysv/linux/kernel-features.h: Add entries for preadv

You might get away with rebuilding glibc against the 2.6.33 headers.

The latest kernel headers available in gentoo (and they're masked unstable):

sys-kernel/linux-headers-2.6.32

So I think I will just keep using Christoph's patch until .33 hits portage.

Unless there's any reason not to? I would rather keep my system "clean".
I can try it though, if that helps you clear things up?

preadv/pwritev was actually introduced in 2.6.30. Perhaps you last build glibc before that? If so, a rebuild may be all that's necessary.

To be certain, I've rebuilt qemu-kvm against:
linux-headers-2.6.33 + glibc-2.10.1-r1 (both freshly built)
And still no go!
I'm still having to use the patch which disables preadv unconditionally...

Antoine
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