Program received signal SIGSEGV, Segmentation fault.
torrent::Block::stalled_transfer (this=0x9400000, transfer=0x8661cc8) at block.cc:259
259         if (m_notStalled == 0)
(gdb) bt
#0  torrent::Block::stalled_transfer (this=0x9400000, transfer=0x8661cc8) at block.cc:259
#1  0x401007ef in torrent::RequestList::cancel_range (this=0x8614720, end=
      {_M_cur = 0x86ad4e4, _M_first = 0x86ad3b8, _M_last = 0x86ad5b8, _M_node = 0x4055b79c}) at block_transfer.h:77
#2  0x40101241 in torrent::RequestList::downloading (this=0x8614720, piece=@0xbffff250) at stl_deque.h:126
#3  0x400f88be in torrent::PeerConnectionBase::down_chunk_start (this=0x86145f0, piece=@0xbffff250) at peer_connection_base.h:96
#4  0x400fe2b1 in torrent::PeerConnectionLeech::read_message (this=<value optimized out>) at protocol_base.h:154
#5  0x400fce05 in torrent::PeerConnectionLeech::event_read (this=0x86145f0) at peer_connection_leech.cc:308
#6  0x400b0bdf in torrent::PollEPoll::perform (this=0x8108888) at poll_epoll.cc:135
#7  0x080b997c in core::PollManagerEPoll::poll (this=0x810c8c0, timeout=The value of variable 'timeout' is distributed across several
locations, and GDB cannot access its value.

) at poll_manager_epoll.cc:112
#8  0x0805c1de in main (argc=1, argv=0xbffff624) at manager.h:89