[PANIC] Duplicate free of item 0xc5221800 from zone 0xc1050b40(mbuf_clus

From: David O'Brien (obrien_at_freebsd.org)
Date: 08/02/05

  • Next message: Tai-hwa Liang: "Re: owi build broken in recent 7-CURRENT" 
    Date: Mon, 1 Aug 2005 17:45:32 -0700
To: freebsd-current@freebsd.org

    FreeBSD 7.0-CURRENT FreeBSD 7.0-CURRENT #522: Sun Jul 31 21:52:18 PDT 2005 i386

    # kgdb kernel.debug /var/crash/vmcore.2
    [GDB will not be able to debug user-mode threads: /usr/lib/libthread_db.so: Undefined symbol "ps_pglobal_lookup"]
    GNU gdb 6.1.1 [FreeBSD]
    Copyright 2004 Free Software Foundation, Inc.
    GDB is free software, covered by the GNU General Public License, and you are
    welcome to change it and/or distribute copies of it under certain conditions.
    Type "show copying" to see the conditions.
    There is absolutely no warranty for GDB. Type "show warranty" for details.
    This GDB was configured as "i386-marcel-freebsd".
    #0 doadump () at pcpu.h:165
    165 pcpu.h: No such file or directory.
            in pcpu.h
    (kgdb) where
    #0 doadump () at pcpu.h:165
    #1 0xc050f512 in boot (howto=260) at ../../../kern/kern_shutdown.c:397
    #2 0xc050f8c3 in panic (
        fmt=0xc06ac606 "Duplicate free of item %p from zone %p(%s)\n")
        at ../../../kern/kern_shutdown.c:553
    #3 0xc061578d in uma_dbg_free (zone=0xc1050b40, slab=0xc5101af8,
        item=0xc5221800) at ../../../vm/uma_dbg.c:288
    #4 0xc061398d in uma_zfree_arg (zone=0xc1050b40, item=0xc5221800, udata=0x0)
        at ../../../vm/uma_core.c:2285
    #5 0xc054ef94 in mb_free_ext (m=0xc5515200) at uma.h:303
    #6 0xc054ee07 in m_freem (mb=0x0) at mbuf.h:427
    #7 0xc0596862 in arpresolve (ifp=0xc4e4ac00, rt0=0xc4ffd420, m=0xc4e1b700,
        dst=0xc4e7e550, desten=0xe6e05b98 "Ä[àæ8õXÀ$ÄoÀ")
        at ../../../netinet/if_ether.c:442
    #8 0xc058b53b in ether_output (ifp=0xc4e4ac00, m=0xc4e1b700, dst=0xc4e7e550,
        rt0=0x0) at ../../../net/if_ethersubr.c:173
    #9 0xc05a2135 in ip_output (m=0xc4e1b700, opt=0xc5585008, ro=0xe6e05bf4,
        flags=2, imo=0xc4bba208, inp=0x0) at ../../../netinet/ip_output.c:772
    #10 0xc0452213 in pfsync_senddef (arg=0xc4bba200)
        at ../../../contrib/pf/net/if_pfsync.c:1829
    #11 0xc051d49b in softclock (dummy=0x0) at ../../../kern/kern_timeout.c:295
    #12 0xc04f8362 in ithread_loop (arg=0xc4ade500)
        at ../../../kern/kern_intr.c:545
    #13 0xc04f7351 in fork_exit (callout=0xc04f8200 <ithread_loop>, arg=0x0,
        frame=0x0) at ../../../kern/kern_fork.c:789
    #14 0xc065a7ac in fork_trampoline () at ../../../i386/i386/exception.s:208
    (kgdb) quit

    Script done on Mon Aug 1 17:42:43 2005
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