DragonFlyBSD

core text file located: http://leaf.dragonflybsd.org/~marino/core/core.ffs_valloc_dup_alloc.txt
core dump located on leaf, ~/marino/crash

uname: DragonFly v3.1.0.634.gc6fd7-DEVELOPMENT #3: Sat May 5 09:02:18 CEST 2012 root@dracofly.synsport.com:/usr/obj/usr/src/sys/GENERIC

backtrace:
Unread portion of the kernel message buffer:
mode = 041777, inum = 4, fs = /mech
panic: ffs_valloc: dup alloc
cpuid = 1
Trace beginning at frame 0xe4b8b838
panic(ffffffff,1,c07290b3,e4b8b86c,d867f860) at panic+0x1a8 0xc039af00
panic(c07290b3,43ff,4,defc10d4,e4b8b8f0) at panic+0x1a8 0xc039af00
ffs_valloc(dee285d8,81a4,e00929e0,e4b8b8f0,c82dcc10) at ffs_valloc+0x518 0xc0542ad4
ufs_makeinode(e4b8ba8c,d867f97c,dee285d8,dee67460,e4b8ba2c) at ufs_makeinode+0x71 0xc0556327
ufs_create(e4b8ba38,e4b8ba68,c04139c0,e4b8ba38,c07d5b38) at ufs_create+0x2c 0xc0556692
ufs_vnoperate(e4b8ba38,c07d5b38,dee67460,dee67460,c04043ef) at ufs_vnoperate+0x16 0xc0555bb6
vop_old_create(dee67460,dee285d8,e4b8bbf0,e4b8ba8c,e4b8bb44) at vop_old_create+0x5b 0xc04139c0
vop_compat_ncreate(e4b8badc,e4b8bad0,c0555bb6,e4b8badc,e4b8bb10) at vop_compat_ncreate+0x11d 0xc03f9813
vop_defaultop(e4b8badc,e4b8bb10,c0412061,e4b8badc,c07d5c98) at vop_defaultop+0x16 0xc03f7f72
ufs_vnoperate(e4b8badc,c07d5c98,dee67460,c7e6f2f8,0) at ufs_vnoperate+0x16 0xc0555bb6
vop_ncreate(dee67460,e4b8bc74,dee285d8,e4b8bbf0,e00929e0) at vop_ncreate+0x64 0xc0412061
vn_open(e4b8bc74,e3731f08,602,1a4,c77f211c) at vn_open+0x183 0xc0410eab
kern_open(e4b8bc74,601,1b6,e4b8bcf0,e372f7a8) at kern_open+0xa3 0xc040e0c7
sys_open(e4b8bcf0,e4b8bd00,c,c03a6652,d867f860) at sys_open+0x54 0xc040e3a9
syscall2(e4b8bd40) at syscall2+0x270 0xc067745c
Xint0x80_syscall() at Xint0x80_syscall+0x36 0xc0646466
Debugger("panic")