[Ocfs2-devel] bug for the new revision

[Ling, Xiaofeng]

The newest SVN 959 has no this bug.
But I meet another bug.
This happened when insert module again after I run some test on it.
The follow is what I get in kgdb

0xc012dbd7 in kmem_cache_create (name=3D0xd08a9b64 "ocfs2_extent", =
size=3D64,
    offset=3D32, flags=3D143360, ctor=3D0, dtor=3D0) at slab.c:815
815                                     BUG();=20

The code in slab.c is:

    down(&cache_chain_sem);
    {
        struct list_head *p;

        list_for_each(p, &cache_chain) {
            kmem_cache_t *pc =3D list_entry(p, kmem_cache_t, next);

            /* The name field is constant - no lock needed. */
            if (!strcmp(pc->name, name))
                BUG();
        }
    }

kernel is still 2.4.20

>-----Original Message-----
>From: ocfs2-devel-bounces at oss.oracle.com=20
>[mailto:ocfs2-devel-bounces at oss.oracle.com] On Behalf Of Ling, Xiaofeng
>Sent: 2004=C4=EA5=D4=C228=C8=D5 16:28
>To: ocfs2-devel at oss.oracle.com
>Subject: [Ocfs2-devel] bug for the new revision
>
>
>I tried the new ocfs2 [SVN 957] with new format, I use the new
>ocfs-tools
>svn
>http://oss.oracle.com/projects/ocfs-tools/src/branches/new-dir-format/=20
>My step
>1.mkfs.ocfs2 -m /ocfs -L ocfs -b 4 /dev/hda3
>2.load_ocfs2
>3.mount /dev/hda3 /ocfs=20
>The mount went into uninterruptable sleep.
>
>
>call trace by magic-sysrq
>
>mount         D 00000000     0  1268    740                     (NOTLB)
>Call Trace:    [<d08697d8>] [<c0105f8a>] [<c01060e4>] [<d086adba>]
>[<d0869add>]
>  [<c010b458>] [<d0873dd5>] [<d0873585>] [<d08a1505>] [<d08a1f19>]
>[<d08902fb>]
>  [<d08692a1>] [<d0897365>] [<d0895086>] [<d089530d>] [<c013c57b>]
>[<c013bcbc>]
>  [<d08b4804>] [<c013c8d1>] [<d08b4804>] [<c014f173>] [<c014f4a0>]
>[<c014f2e9>]
>  [<c014f921>] [<c010742f>]
>
>output by ksymsoops
>Trace; d08697d8 <[ocfs2]ocfs_bh_sem_lookup+1f8/4c0>
>Trace; c0105f8a <__down+6a/b0>
>Trace; c01060e4 <__down_failed+8/c>
>Trace; d086adba <[ocfs2].text.lock.KBUILD_BASENAME+5/17>
>Trace; d0869add <[ocfs2]ocfs_bh_sem_lock+3d/d8>
>Trace; c010b458 <call_do_IRQ+5/d>
>Trace; d0873dd5 <[ocfs2]OCFS_BH_GET_DATA_READ+31/174>
>Trace; d0873585 <[ocfs2]ocfs_read_bhs+6b5/ed4>
>Trace; d08a1505 <[ocfs2]ocfs_chk_update_config+185/ae8>
>Trace; d08a1f19 <[ocfs2]ocfs_get_config+b1/460>
>Trace; d08902fb <[ocfs2]ocfs_initialize_osb+9a3/151c>
>Trace; d08692a1 <[ocfs2]ocfs_bh_sem_alloc+21/34>
>Trace; d0897365 <[ocfs2]ocfs_mount_volume+3d9/120c>
>Trace; d0895086 <[ocfs2]__ocfs_read_super+29e/4f4>
>Trace; d089530d <[ocfs2]ocfs_read_super+31/70>
>Trace; c013c57b <get_sb_bdev+18b/250>
>Trace; c013bcbc <get_fs_type+2c/80>
>Trace; d08b4804 <[ocfs2]ocfs_fs_type+0/7c>
>Trace; c013c8d1 <do_kern_mount+121/140>
>Trace; d08b4804 <[ocfs2]ocfs_fs_type+0/7c>
>Trace; c014f173 <do_add_mount+93/190>
>Trace; c014f4a0 <do_mount+160/1b0>
>Trace; c014f2e9 <copy_mount_options+79/d0>
>Trace; c014f921 <sys_mount+b1/e0>
>Trace; c010742f <system_call+33/38>=20
>
>see bug 77
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