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    SubjectRe: Kernel Linux 2.6.23.16 hangs when run updatedb
    cc'd: Thomas Gleixner
    cc'd: Ingo Molnar
    About hrtimer comment by Alan Jenkins



    Alan Jenkins wrote:
    > Renato S. Yamane wrote:
    >> devzero@web.de wrote:
    >>> Renato S. Yamane wrote:
    >>>> when cron start updatedb daemon, my machine hangs. None key work, so I
    >>>> need reset (press power button to restart).
    >>>>
    >>>> The only way to get log is runing updatedb from terminal (CTRL + ALT +
    >>>> F1) and take a picture from screen:
    >>>>
    >>>> Up screen:
    >>>> <http://img137.imageshack.us/img137/7128/01pg1.jpg>
    >>>>
    >>>> Down screen:
    >>>> <http://img100.imageshack.us/img100/1456/02kx1.jpg>
    >>>>
    >>>> Call trace detail:
    >>>> <http://img100.imageshack.us/img100/8233/calltracedetailsj7.jpg>
    >>>
    >>>
    >>> looks like reiserfs issue.
    >>> maybe corrupt filesystem and improper handling of the reiserfs-driver?
    >>>
    >>> could you try some "find /" ?
    >>
    >>
    >> "find /" don't hangs my machine.
    >> The problem is only with updatedb.
    >>
    >> How can I fix this? Is safe run reiserfsck?
    >
    >
    > I think he's wrong.
    >
    > Looking at the call trace, the BUG happens during an interrupt. It
    > could be a coincidence that the interrupt happened during this
    > particular system call.
    >
    > It looks like a timer callback has been corrupted / set to an invalid
    > value. The BUG is due to accessing the invalid address 61060fe0
    > within enqueue_hrtimer, and the EIP (instruction pointer) is also
    > equal to 61060fe0. This would be consistent with the source code of
    > enqueue_hrtimer. It's not an obvious reiserfs issue.
    >
    > I don't know how to find out where this corruption is happening, but
    > it's worth asking the hrtimers people.



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