See the file above. I also launched a newly-compiled gnome-panel with gdb, and had the same bug (segfault). Here's the backtrace : (gdb) run Starting program: /home/essai/gnome-panel-2.12.1/gnome-panel/gnome-panel [Thread debugging using libthread_db enabled] [New Thread -1223477568 (LWP 5285)] Program received signal SIGSEGV, Segmentation fault. [Switching to Thread -1223477568 (LWP 5285)] 0xb7ddb43a in art_bezier_to_vec () from /usr/lib/libart_lgpl_2.so.2 (gdb) bt #0 0xb7ddb43a in art_bezier_to_vec () from /usr/lib/libart_lgpl_2.so.2 #1 0xb7ddb4c0 in art_bezier_to_vec () from /usr/lib/libart_lgpl_2.so.2 #2 0xb7ddb4c0 in art_bezier_to_vec () from /usr/lib/libart_lgpl_2.so.2 #3 0xb7ddb4c0 in art_bezier_to_vec () from /usr/lib/libart_lgpl_2.so.2 #4 0xb7ddb4c0 in art_bezier_to_vec () from /usr/lib/libart_lgpl_2.so.2 #5 0xb7ddb4c0 in art_bezier_to_vec () from /usr/lib/libart_lgpl_2.so.2 #6 0xb7ddb4c0 in art_bezier_to_vec () from /usr/lib/libart_lgpl_2.so.2 #7 0xb7ddb4c0 in art_bezier_to_vec () from /usr/lib/libart_lgpl_2.so.2 #8 0xb7ddb4c0 in art_bezier_to_vec () from /usr/lib/libart_lgpl_2.so.2 #9 0xb7ddb4c0 in art_bezier_to_vec () from /usr/lib/libart_lgpl_2.so.2 #10 0xb7ddb4c0 in art_bezier_to_vec () from /usr/lib/libart_lgpl_2.so.2 #11 0xb7ddb4c0 in art_bezier_to_vec () from /usr/lib/libart_lgpl_2.so.2 #12 0xb7ddb4c0 in art_bezier_to_vec () from /usr/lib/libart_lgpl_2.so.2 #13 0xb7ddb4c0 in art_bezier_to_vec () from /usr/lib/libart_lgpl_2.so.2 #14 0xb7ddb4c0 in art_bezier_to_vec () from /usr/lib/libart_lgpl_2.so.2 #15 0xb7ddb4c0 in art_bezier_to_vec () from /usr/lib/libart_lgpl_2.so.2 #16 0xb7ddb4c0 in art_bezier_to_vec () from /usr/lib/libart_lgpl_2.so.2 #17 0xb7ddb4c0 in art_bezier_to_vec () from /usr/lib/libart_lgpl_2.so.2 #18 0xb7ddb4c0 in art_bezier_to_vec () from /usr/lib/libart_lgpl_2.so.2 #19 0xb7ddb4c0 in art_bezier_to_vec () from /usr/lib/libart_lgpl_2.so.2 #20 0xb7ddb4c0 in art_bezier_to_vec () from /usr/lib/libart_lgpl_2.so.2 #21 0xb7ddb4c0 in art_bezier_to_vec () from /usr/lib/libart_lgpl_2.so.2 #22 0xb7ddb4c0 in art_bezier_to_vec () from /usr/lib/libart_lgpl_2.so.2 #23 0xb7ddb4c0 in art_bezier_to_vec () from /usr/lib/libart_lgpl_2.so.2 #24 0xb7ddb4c0 in art_bezier_to_vec () from /usr/lib/libart_lgpl_2.so.2 #25 0xb7ddb4c0 in art_bezier_to_vec () from /usr/lib/libart_lgpl_2.so.2 #26 0xb7ddb4c0 in art_bezier_to_vec () from /usr/lib/libart_lgpl_2.so.2 #27 0xb7ddb4c0 in art_bezier_to_vec () from /usr/lib/libart_lgpl_2.so.2 #28 0xb7ddb4c0 in art_bezier_to_vec () from /usr/lib/libart_lgpl_2.so.2 #29 0xb7ddb4c0 in art_bezier_to_vec () from /usr/lib/libart_lgpl_2.so.2 #30 0xb7ddb4c0 in art_bezier_to_vec () from /usr/lib/libart_lgpl_2.so.2 #31 0xb7ddb4c0 in art_bezier_to_vec () from /usr/lib/libart_lgpl_2.so.2 #32 0xb7ddb4c0 in art_bezier_to_vec () from /usr/lib/libart_lgpl_2.so.2 #33 0xb7ddb4c0 in art_bezier_to_vec () from /usr/lib/libart_lgpl_2.so.2 #34 0xb7ddb4c0 in art_bezier_to_vec () from /usr/lib/libart_lgpl_2.so.2 ---Type to continue, or q to quit--- #35 0xb7ddb4c0 in art_bezier_to_vec () from /usr/lib/libart_lgpl_2.so.2 #36 0xb7ddb4c0 in art_bezier_to_vec () from /usr/lib/libart_lgpl_2.so.2 #37 0xb7ddb4c0 in art_bezier_to_vec () from /usr/lib/libart_lgpl_2.so.2 #38 0xb7ddb4c0 in art_bezier_to_vec () from /usr/lib/libart_lgpl_2.so.2 #39 0xb7ddb4c0 in art_bezier_to_vec () from /usr/lib/libart_lgpl_2.so.2 #40 0xb7ddb4c0 in art_bezier_to_vec () from /usr/lib/libart_lgpl_2.so.2 #41 0xb7ddb4c0 in art_bezier_to_vec () from /usr/lib/libart_lgpl_2.so.2 #42 0xb7ddb4c0 in art_bezier_to_vec () from /usr/lib/libart_lgpl_2.so.2 #43 0xb7ddb4c0 in art_bezier_to_vec () from /usr/lib/libart_lgpl_2.so.2 #44 0xb7ddb4c0 in art_bezier_to_vec () from /usr/lib/libart_lgpl_2.so.2 #45 0xb7ddb4c0 in art_bezier_to_vec () from /usr/lib/libart_lgpl_2.so.2 #46 0xb7ddb4c0 in art_bezier_to_vec () from /usr/lib/libart_lgpl_2.so.2 #47 0xb7ddb4c0 in art_bezier_to_vec () from /usr/lib/libart_lgpl_2.so.2 #48 0xb7ddb4c0 in art_bezier_to_vec () from /usr/lib/libart_lgpl_2.so.2 #49 0xb7ddb4c0 in art_bezier_to_vec () from /usr/lib/libart_lgpl_2.so.2 #50 0xb7ddb4c0 in art_bezier_to_vec () from /usr/lib/libart_lgpl_2.so.2 #51 0xb7ddb4c0 in art_bezier_to_vec () from /usr/lib/libart_lgpl_2.so.2 #52 0xb7ddb4c0 in art_bezier_to_vec () from /usr/lib/libart_lgpl_2.so.2 #53 0xb7ddb4c0 in art_bezier_to_vec () from /usr/lib/libart_lgpl_2.so.2 #54 0xb7ddb4c0 in art_bezier_to_vec () from /usr/lib/libart_lgpl_2.so.2 #55 0xb7ddb4c0 in art_bezier_to_vec () from /usr/lib/libart_lgpl_2.so.2 #56 0xb7ddb4c0 in art_bezier_to_vec () from /usr/lib/libart_lgpl_2.so.2 #57 0xb7ddb4c0 in art_bezier_to_vec () from /usr/lib/libart_lgpl_2.so.2 #58 0xb7ddb4c0 in art_bezier_to_vec () from /usr/lib/libart_lgpl_2.so.2 #59 0xb7ddb4c0 in art_bezier_to_vec () from /usr/lib/libart_lgpl_2.so.2 #60 0xb7ddb4c0 in art_bezier_to_vec () from /usr/lib/libart_lgpl_2.so.2 #61 0xb7ddb4c0 in art_bezier_to_vec () from /usr/lib/libart_lgpl_2.so.2 #62 0xb7ddb4c0 in art_bezier_to_vec () from /usr/lib/libart_lgpl_2.so.2 #63 0xb7ddb4c0 in art_bezier_to_vec () from /usr/lib/libart_lgpl_2.so.2 #64 0xb7ddb4c0 in art_bezier_to_vec () from /usr/lib/libart_lgpl_2.so.2 #65 0xb7ddb4c0 in art_bezier_to_vec () from /usr/lib/libart_lgpl_2.so.2 #66 0xb7ddb4c0 in art_bezier_to_vec () from /usr/lib/libart_lgpl_2.so.2 #67 0xb7ddb4c0 in art_bezier_to_vec () from /usr/lib/libart_lgpl_2.so.2 #68 0xb7ddb4c0 in art_bezier_to_vec () from /usr/lib/libart_lgpl_2.so.2 #69 0xb7ddb4c0 in art_bezier_to_vec () from /usr/lib/libart_lgpl_2.so.2 ---Type to continue, or q to quit--- #70 0xb7ddb4c0 in art_bezier_to_vec () from /usr/lib/libart_lgpl_2.so.2 #71 0xb7ddb4c0 in art_bezier_to_vec () from /usr/lib/libart_lgpl_2.so.2 #72 0xb7ddb4c0 in art_bezier_to_vec () from /usr/lib/libart_lgpl_2.so.2 #73 0xb7ddb4c0 in art_bezier_to_vec () from /usr/lib/libart_lgpl_2.so.2 #74 0xb7ddb4c0 in art_bezier_to_vec () from /usr/lib/libart_lgpl_2.so.2 #75 0xb7ddb4c0 in art_bezier_to_vec () from /usr/lib/libart_lgpl_2.so.2 #76 0xb7ddb4c0 in art_bezier_to_vec () from /usr/lib/libart_lgpl_2.so.2 #77 0xb7ddb4c0 in art_bezier_to_vec () from /usr/lib/libart_lgpl_2.so.2 #78 0xb7ddb4c0 in art_bezier_to_vec () from /usr/lib/libart_lgpl_2.so.2 #79 0xb7ddb4c0 in art_bezier_to_vec () from /usr/lib/libart_lgpl_2.so.2 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