Posted Jul 28, 2005 13:02 UTC (Thu) by demon
In reply to: NPTL Support?
Parent article: OLS: Xen and UML
Actually, Xen works just fine with NPTL. The unmodified glibc will have a minor performance cost, due to the Xen hypervisor needing to enable a few workarounds to deal with the negative offsets of the GS register that were mentioned above, but a patched glibc makes this go away. NPTL-threaded apps work just as they do on a full-blown Linux machine.
As I don't use UML, I can't say if it does or not, though there might be similar concerns with it as to what had been cropping up with NPTL and Xen.
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