Re: Oops with tmpfs on both 2.4.22 & 2.6.0-test11

From: Oleg Drokin (green_at_linuxhacker.ru)
Date: 11/30/03

  • Next message: Prakash K. Cheemplavam: "Re: Silicon Image 3112A SATA trouble" 
    Date:	Sun, 30 Nov 2003 23:21:42 +0200
To: linux-kernel@vger.kernel.org

    Hello!

    William Lee Irwin III <wli@holomorphy.com> wrote:

    WLII> Could you try 2.6 with the following patch and send in the resulting
    WLII> oops/BUG? Please turn on kallsyms for the run.
    WLII> while (n && p != &file->f_dentry->d_subdirs) {
    WLII> struct dentry *next;
    WLII> next = list_entry(p, struct dentry, d_child);
    WLII> + BUG_ON(!next);
    WLII> if (!d_unhashed(next) && next->d_inode)
    WLII> n--;
    WLII> p = p->next;
    WLII> }

    This loop is never run since n is 0

    WLII> + BUG_ON(!cursor);
    WLII> list_del(&cursor->d_child);
    WLII> list_add_tail(&cursor->d_child, p);

    The problem seems to be because &cursor->d_child is equal to p,
    so on list_del we zero p->prev, and then assign to p->prev->next in
    list_add_tail.
    &cursor->d_child is equal to p probably because we just created it this
    way in dcache_dir_open()

    Bye,
        Oleg
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  • Next message: Prakash K. Cheemplavam: "Re: Silicon Image 3112A SATA trouble"