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    SubjectRe: [patch 0/2] x86: NMI-safe trap handlers
    * Andi Kleen (andi@firstfloor.org) wrote:
    > > x86_32 cannot use vmalloc_sync_all() to sychronize the TLBs from every
    > > processes because the vmalloc area is mapped in a different address space for
    >
    > That doesn't make sense. vmalloc_all_sync() should work on 32bit too.
    > It just needs to walk all processes and fix up every page table.

    Yeah, I've been taken aback when Tejun told me that a few moments ago. I
    initially thought that vmalloc_sync_all() synchronized all page mappings of all
    processes on x86_32. But apparently that does not seem to be the case. I'm
    adding him in CC.

    Thanks,

    Mathieu

    --
    Mathieu Desnoyers
    Operating System Efficiency R&D Consultant
    EfficiOS Inc.
    http://www.efficios.com


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