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    SubjectRe: Why kmem_cache_free occupy CPU for more than 10 seconds?
    On 4/11/07, Zhao Forrest <forrest.zhao@gmail.com> wrote:
    > We're using RHEL5 with kernel version 2.6.18-8.el5.
    > When doing a stress test on raw device for about 3-4 hours, we found
    > the soft lockup message in dmesg.
    > I know we're not reporting the bug on the latest kernel, but does any
    > expert know if this is the known issue in old kernel? Or why
    > kmem_cache_free occupy CPU for more than 10 seconds?

    Sounds like slab corruption. CONFIG_DEBUG_SLAB should tell you more.
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