On 06/05/11 05:06, Stéphane Gaudreault wrote:
Le 5 mai 2011 14:20:31, Dan McGee a écrit :
On Thu, May 5, 2011 at 12:58 PM, Tom Gundersen<teg@jklm.no> wrote:
Hi guys,
As far as I understand the minimal kernel version we support is 2.6.27. This is at least due to glibc and udev.
I thought it would be worth noting that as of its next release udev will require kernel version 2.6.32: <http://git.kernel.org/?p=linux/hotplug/udev.git;a=commit;h=67a77c8bf299f 6264f001677becd056316ebce2f>.
Maybe this could be an opportunity to raise the requirement across the board, and also to make a news item about this?
Not to be the thorn in the side of progress, but we can't keep changing this every six months on a whim unless we truly don't care about some semblance of stability and uptime. We last changed this less than 5 months ago[1], and before that, 21 months ago[2]. I think there needs to be an extremely valid reason someone can't have a machine with uptime approaching a year in duration. I'm sure there are people running pre-2.6.32 kernels out there even though we don't currently package one- it was only released in December 2009, so 18 months ago.
So obviously if you update udev on your system, you should be expected to run a kernel that satisfies the requirement, but I don't think we should force people to jump from the 2.6.27 level we established only 5 months ago just yet if at all possible.
-Dan
[1] http://www.archlinux.org/news/minimum-required-kernel-version-increased-1/ [2] http://www.archlinux.org/news/udev-minimum-kernel-version/
I might be wrong on this because I do not have all the information, but I think that one of the consequence of our choice to set minimum version to 2.6.27 is that we need to patch the glibc to avoid a threading issue on x86_64[1]. This problem do not seems to happen if glibc is builded for 2.6.32.
Again, I do not have all information on this. Allan might have a more informed opinion on this issue.
Stéphane
That is a small issue that is fixed and no longer a concern, so it not a reason to increase minimum required kernel version. When I increased the required version to 2.6.27, I selected that version because that was the latest supported upstream (i.e. by the kernel developers). That situation still has not changed. I will note that Fedora (and RHEL6?) uses 2.6.32 as their minimum. Allan