[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] 46% performance drop with change in glibc
On Friday 04 November 2005 10:08, you wrote: > > There is no tls subdir since NPTL is the default (and LT is > > completely gone in FC5). The code in /lib is the TLS code > > using the correct ABI. > > > > The crippled ABI is supported by the code in > > /lib/i686/nosegneg. This code is *automatically* used if the > > kernel is compiled to match the glibc version. This happens using the > > > > linux-2.6-xen-vdso-note.patch > > I believe we have this patch in the xen repo, but I haven't ever > verified whether the right thing happens under FC4. I am not seeing this patch in ./patches/linux-2.6.12 directory. Is it somewhere else? > Andrew: please could you check you have the xen glibc rpm installed and > verify that the glibc selection is working using one of our kernels. I am pretty sure I have the xen glibc, but a I can't verify it's working until I get a clean build of a patched xen kernel. I suspect we need a little more than just the linux-2.6-xen-vdso-note patch to build cleanly: kernel/built-in.o(.text+0x2671f): In function `kallsyms_lookup': : undefined reference to `in_gate_area_no_task' mm/built-in.o(.text+0x12f5f): In function `get_user_pages': : undefined reference to `in_gate_area' mm/built-in.o(.text+0x12f7b): In function `get_user_pages': : undefined reference to `get_gate_vma' fs/built-in.o(.text+0x34608): In function `show_map': task_mmu.c: undefined reference to `get_gate_vma' fs/built-in.o(.text+0x34785): In function `m_start': task_mmu.c: undefined reference to `get_gate_vma' fs/built-in.o(.text+0x34887): In function `m_stop': task_mmu.c: undefined reference to `get_gate_vma' fs/built-in.o(.text+0x348e6): In function `m_next': task_mmu.c: undefined reference to `get_gate_vma' _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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