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    SubjectRe: Performance of ext4
    On Thu, 12 Jun 2008, Aneesh Kumar K.V wrote:

    > On Thu, Jun 12, 2008 at 02:07:30PM +0000, Holger Kiehl wrote:
    >> This time there is no OOPS and system is still up running without any
    >> problem (except any process wanting to write something to this filesystem
    >> gets stuck forever).
    >> What can I do to help find the problem? The system is still up with all those
    >> process hanging in D-state.
    > if you can login to the system get the dmesg output after
    > echo t > /proc/sysrq-trigger
    Unfortunately I have not set CONFIG_MAGIC_SYSRQ. Tomorrow I will try to
    reproduce this with a kernel that has CONFIG_MAGIC_SYSRQ set.


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