>Number:         36046
>Category:       kern
>Synopsis:       newlock panic
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    kern-bug-people
>State:          open
>Class:          support
>Submitter-Id:   net
>Arrival-Date:   Mon Mar 19 18:10:00 +0000 2007
>Originator:     Cherry G. Mathew
>Release:        -current ( see dmesg snippet below)
>Organization:
TNF
>Environment:
NetBSD maverick 4.99.15 NetBSD 4.99.15 (GENERIC.AVERATEC) #11: Sun Mar 18 01:36:39 GMT 2007  cherry@maverick:/home/cherry/builds/build-i386/obj/home/cherry/source/src/sys/arch/i386/compile/GENERIC.AVERATEC i386
>Description:
mutex_enter with held simple_lock: 0xcbeea9c4 CPU 0 i386/sys_machdep.c:296
uvm_fault (0xccdedbd4,0,1)->0xe
kernel: supervisor trap page fault, code=0
Stopped in pid 371.1 (mplayer) at netbsd:db_read_bytes+0x30: movl 0 (%esi), %eax

db> bt

dbread_bytes(88,4,cce759f4, c045f085,e759f8) at netbsd:db_read_bytes+0x30
db_get_value(88, 4, 0, 78657475, 746e655f) at netbsd:db_get_value+0x27
db_stack_trace_print(cce75ae0, 1, ffff, c096ca28, c045ed00) at netbsd:db_statck_trace_print+0x3e3
simple_lock_only_held(0,c0942091,0,c0416905,0) at netbsd:simple_lock_only_held+0x111
mutex_vector_enter(c0a6ea90,200,cce75bac,c05266dc,c09ee134) at netbsd:mutx_vector_enter+0x3f1
gdt_get_slot(c099ee134,3,1000,c0e8b9a0,c2238eb0) at netbsd:gdt_get_slot+0x13
ldt_alloc(cbeea9c4,cc980000,1000,1,0) at netbsd:ldt_alloc+0x33b
syscall_plain() at netbsd:syscall_plain + 0x169
syscall(number 165) ---
0xbb46aee3





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 1999, 2000, 2001, 2002, 2003, 2004, 2005,
    2006, 2007
    The NetBSD Foundation, Inc.  All rights reserved.
Copyright (c) 1982, 1986, 1989, 1991, 1993
    The Regents of the University of California.  All rights reserved.

NetBSD 4.99.15 (GENERIC.AVERATEC) #11: Sun Mar 18 01:36:39 GMT 2007
        cherry@maverick:/home/cherry/builds/build-i386/obj/home/cherry/source/sr
c/sys/arch/i386/compile/GENERIC.AVERATEC


>How-To-Repeat:
run mplayer with specific mp3 files ( reproducible with the same file )
>Fix: