LOR during bootup on 6.0-BETA4

From: martin hudec <corwin_at_aeternal.net>
Date: Thu, 15 Sep 2005 11:16:25 +0200
Hello,

  I am getting lock order reversal during bootup on one of my servers
  after mounting from root:

  lock order reversal
   1st 0xc073b5e0 UMA lock (UMA lock) _at_ /usr/src/sys/vm/uma_core.c:1494
    2nd 0xc1060144 system map (system map) _at_
    /usr/src/sys/vm/vm_kern.c:295
    KDB: stack backtrace:
    kdb_backtrace(0,ffffffff,c06f0780,c06f08c0,c06b69e4) at
    kdb_backtrace+0x29
    witness_checkorder(c1060144,9,c069443e,127) at
    witness_checkorder+0x564
    _mtx_lock_flags(c1060144,0,c069443e,127) at _mtx_lock_flags+0x5b
    _vm_map_lock(c10600c0,c069443e,127) at _vm_map_lock+0x26
    kmem_malloc(c10600c0,1000,1,e6b4bba4,c05fcd59) at kmem_malloc+0x32
    page_alloc(c104a960,1000,e6b4bb97,1,c05118e4) at page_alloc+0x1a
    slab_zalloc(c104a960,1,0,c3ba2980,c104917c) at slab_zalloc+0xa1
    uma_zone_slab(c104a960,1,1,10,168f) at uma_zone_slab+0xe8
    uma_zalloc_bucket(c104a960,1) at uma_zalloc_bucket+0x12c
    uma_zalloc_arg(c104a960,0,1) at uma_zalloc_arg+0x2dc
    malloc(800,c06c9480,1,1a4,c1044460) at malloc+0xae
    hash_alloc(e6b4bc74,c1044468,0,c06936f7,1ab) at hash_alloc+0x29
    zone_timeout(c1042b40) at zone_timeout+0x7e
    zone_foreach(c05fc590,e6b4bce8,c04fb6df,0,c05fc55c) at
    zone_foreach+0x37
    uma_timeout(0) at uma_timeout+0x12
    softclock(0) at softclock+0x1e7
    ithread_loop(c3567480,e6b4bd38,c3567480,c04ddcc8,0) at
    ithread_loop+0x11c
    fork_exit(c04ddcc8,c3567480,e6b4bd38) at fork_exit+0xa0
    fork_trampoline() at fork_trampoline+0x8
    --- trap 0x1, eip = 0, esp = 0xe6b4bd6c, ebp = 0 ---

  If I could be of any assistance, let me know. I am attaching dmesg.

-- 
martin hudec


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Received on Thu Sep 15 2005 - 07:16:29 UTC

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