Transmission(15873,0xb00bc000) malloc: *** error for object 0x84f200: double free
*** set a breakpoint in malloc_error_break to debug
[Switching to process 15873 thread 0x3003]

Breakpoint 1, 0x964949f1 in malloc_error_break ()
(gdb) bt
#0  0x964949f1 in malloc_error_break ()
#1  0x9648f9df in szone_error ()
#2  0x963b4b83 in szone_free ()
#3  0x963b49ed in free ()
#4  0x0005db51 in tr_free (p=0x84f200) at /Users/admin/Transmission/libtransmission/utils.c:714
#5  0x00074ffe in TrOpenFile (i=8, filename=0xb00bb7cc "/Users/admin//Downloads/Greys.Anatomy.S04E06.HDTV.XviD-2HD/greys.anatomy.s04e06.hdtv.xvid-2hd.r00", write=1) at /Users/admin/Transmission/libtransmission/fdlimit.c:138
#6  0x000756bc in tr_fdFileOpen (filename=0xb00bb7cc "/Users/admin//Downloads/Greys.Anatomy.S04E06.HDTV.XviD-2HD/greys.anatomy.s04e06.hdtv.xvid-2hd.r00", write=1) at /Users/admin/Transmission/libtransmission/fdlimit.c:272
#7  0x00072676 in readOrWriteBytes (tor=0x894c00, ioMode=1, fileIndex=1, fileOffset=467880, buf=0x17aaf000, buflen=16384) at /Users/admin/Transmission/libtransmission/inout.c:75
#8  0x00072c24 in readOrWritePiece (tor=0x894c00, ioMode=1, pieceIndex=0, pieceOffset=475136, buf=0x17aaf000 "?(?\203\2246X\204?c\226?k\005K-\224E\206?N??Q?+A[Q\0355?M\036\237s??5 }0?J?\035??PcUrT]<g?\236ܱB?v#%\025.\b#?ei?/?,??\211b\234Q????\237C\032?:?\206?AO\224$~\232??$Cn?\030\203\236X{?]\231?\f\031g\017??\b}\\?8?????\037??:l<?i?S?\225Log'\nhH?\222?Ay\206?\003\235\\?:??'\036??6Ѫ?\177?D?? L?r?\237t-?\235!\210'}\200???\210\215"..., buflen=16384) at /Users/admin/Transmission/libtransmission/inout.c:182
#9  0x00072ce1 in tr_ioWrite (tor=0x894c00, pieceIndex=0, begin=475136, len=16384, buf=0x17aaf000 "?(?\203\2246X\204?c\226?k\005K-\224E\206?N??Q?+A[Q\0355?M\036\237s??5 }0?J?\035??PcUrT]<g?\236ܱB?v#%\025.\b#?ei?/?,??\211b\234Q????\237C\032?:?\206?AO\224$~\232??$Cn?\030\203\236X{?]\231?\f\031g\017??\b}\\?8?????\037??:l<?i?S?\225Log'\nhH?\222?Ay\206?\003\235\\?:??'\036??6Ѫ?\177?D?? L?r?\237t-?\235!\210'}\200???\210\215"...) at /Users/admin/Transmission/libtransmission/inout.c:210
#10 0x0008b797 in gotBlock (msgs=0x14231fc0, inbuf=0x2d8a10, index=0, offset=475136, length=16384) at /Users/admin/Transmission/libtransmission/peer-msgs.c:1243
#11 0x0008bc15 in readBtPiece (msgs=0x14231fc0, inbuf=0x14259450) at /Users/admin/Transmission/libtransmission/peer-msgs.c:1306
#12 0x0008bd37 in canRead (evin=0x142332a0, vmsgs=0x14231fc0) at /Users/admin/Transmission/libtransmission/peer-msgs.c:1336
#13 0x00082da6 in canReadWrapper (e=0x142332a0, userData=0x1422f8b0) at /Users/admin/Transmission/libtransmission/peer-io.c:94
#14 0x0004bbba in bufferevent_readcb (fd=23, event=2, arg=0x142332a0) at /Users/admin/Transmission/third-party/libevent/evbuffer.c:140
#15 0x0004d71a in event_process_active (base=0x2a4900) at /Users/admin/Transmission/third-party/libevent/event.c:331
#16 0x0004da15 in event_base_loop (base=0x2a4900, flags=0) at /Users/admin/Transmission/third-party/libevent/event.c:447
#17 0x0004d872 in event_loop (flags=0) at /Users/admin/Transmission/third-party/libevent/event.c:381
#18 0x0004d762 in event_dispatch () at /Users/admin/Transmission/third-party/libevent/event.c:345
#19 0x0007f5d4 in libeventThreadFunc (veh=0x2a4830) at /Users/admin/Transmission/libtransmission/trevent.c:212
#20 0x000689ad in ThreadFunc (_t=0x2a48f0) at /Users/admin/Transmission/libtransmission/platform.c:133
#21 0x963df075 in _pthread_start ()
#22 0x963def32 in thread_start ()