Re: [F.A.Q.] the advantages of a shared tool/kernel Git repository, tools/perf/ and tools/kvm/

2011-11-08 Thread Theodore Tso
On Nov 8, 2011, at 4:32 AM, Ingo Molnar wrote: No ifs and when about it, these are the plain facts: - Better features, better ABIs: perf maintainers can enforce clean, functional and usable tooling support *before* committing to an ABI on the kernel side. We don't have to be

Re: [F.A.Q.] perf ABI backwards and forwards compatibility

2011-11-08 Thread Theodore Tso
On Nov 8, 2011, at 5:22 AM, Ingo Molnar wrote: We do even more than that, the perf ABI is fully backwards *and* forwards compatible: you can run older perf on newer ABIs and newer perf on older ABIs. It's great to hear that! But in that case, there's an experiment we can't really run,

Re: [F.A.Q.] perf ABI backwards and forwards compatibility

2011-11-08 Thread Theodore Tso
On Nov 8, 2011, at 6:20 AM, Pekka Enberg wrote: We have the staging tree because it's a widely acknowledged belief that kernel code in the tree tends to improve over time compared to code that's sitting out of the tree. Are you disputing that belief? Kernel code in the kernel source tree

Re: [Qemu-devel] [PATCH] KVM: Add wrapper script around QEMU to test kernels

2011-11-07 Thread Theodore Tso
On Nov 7, 2011, at 5:19 PM, Anthony Liguori wrote: The kernel ecosystem does not have to be limited to linux.git. There could be a process to be a kernel.org project for projects that fit a certain set of criteria. These projects could all share the Linux kernel release cadence and

Re: Problems with CONFIG_KVM_GUEST?

2009-08-02 Thread Theodore Tso
On Sun, Aug 02, 2009 at 06:49:01PM +0300, Avi Kivity wrote: What's the host kernel version? We had problems with CONFIG_KVM_GUEST and PAE which were resolved in 2.6.30-final but perhaps failed to trickle down to whatever you're using. The upstream commit is a8cd0244 (KVM: Make paravirt