(gdb) run fs_async_sendfile fs_async_sendfile
Starting program: /Users/saghul/src/pyuv/deps/libuv/test/run-tests fs_async_sendfile fs_async_sendfile
Reading symbols for shared libraries .+++....................... done
Assertion failed in test/test-fs.c on line 433: req->result == 65546

Program received signal SIGABRT, Aborted.
0x00007fff813880b6 in __kill ()
(gdb) bt
#0  0x00007fff813880b6 in __kill ()
#1  0x00007fff814289f6 in abort ()
#2  0x0000000100010584 in sendfile_cb (req=0x1000ab920) at test-fs.c:433
#3  0x000000010004c463 in uv__fs_done (w=0x1000ab9b8) at fs.c:379
#4  0x000000010005c2e4 in uv__work_done (handle=0x10010af58, status=0) at threadpool.c:146
#5  0x0000000100048841 in uv__async_io (loop=0x10010aec0, handle=0x10010b010, events=1) at async.c:146
#6  0x0000000100049ddb in uv__io_rw (ev=0x10010b660, w=0x10010b010, events=1) at core.c:539
#7  0x000000010006d529 in ev_invoke_pending (loop=0x10010b660) at ev.c:2145
#8  0x000000010004969d in uv__poll (loop=0x10010aec0) at core.c:260
#9  0x00000001000496f8 in uv__run (loop=0x10010aec0) at core.c:269
#10 0x0000000100049778 in uv_run (loop=0x10010aec0) at core.c:277
#11 0x0000000100014530 in run_test_fs_async_sendfile () at test-fs.c:875
#12 0x0000000100002514 in run_test_part (test=0x7fff5fbff379 "fs_async_sendfile", part=0x7fff5fbff38b "fs_async_sendfile") at runner.c:302
#13 0x0000000100000e44 in main (argc=3, argv=0x7fff5fbff1b0) at run-tests.c:57
(gdb)