Breakpoint 2, __wt_fsync (session=0x4873620, fh=0x4881f48, block=true) at ../src/include/misc.i:276
276		WT_ASSERT(session, !F_ISSET(S2C(session), WT_CONN_READONLY));
(gdb) where
#0  __wt_fsync (session=0x4873620, fh=0x4881f48, block=true) at ../src/include/misc.i:276
#1  0x00000000004757a1 in __handle_error_default (handler=0x77b3c0 <__event_handler_default>,
    wt_session=0x4873620, error=0,
    errmsg=0x7fffffffb420 "[1459733033:230750][20488:0x7ffff7fd8740], wiredtiger_open: ../src/include/misc.i, 276: !F_ISSET(S2C(session), WT_CONN_READONLY)") at ../src/support/err.c:27
#2  0x0000000000476039 in __wt_eventv (session=0x4873620, msg_event=false, error=0,
    file_name=0x53f5d4 "../src/include/misc.i", line_number=276, fmt=0x53f5d1 "%s", ap=0x7fffffffbd48)
    at ../src/support/err.c:297
#3  0x00000000004766e0 in __wt_assert (session=0x4873620, error=0,
    file_name=0x53f5d4 "../src/include/misc.i", line_number=276, fmt=0x53f5d1 "%s")
    at ../src/support/err.c:476
#4  0x00000000004756d2 in __wt_fsync (session=0x4873620, fh=0x4881f48, block=true)
    at ../src/include/misc.i:276
#5  0x00000000004757a1 in __handle_error_default (handler=0x77b3c0 <__event_handler_default>,
    wt_session=0x4873620, error=13,
    errmsg=0x7fffffffbed0 "[1459733007:576348][20488:0x7ffff7fd8740], wiredtiger_open: WT_RD.RD/WiredTiger.lock: handle-open: open: Permission denied") at ../src/support/err.c:27
#6  0x0000000000476039 in __wt_eventv (session=0x4873620, msg_event=false, error=13, file_name=0x0,
    line_number=0, fmt=0x538eb2 "%s: handle-open: open", ap=0x7fffffffc7f8) at ../src/support/err.c:297
#7  0x0000000000476138 in __wt_err (session=0x4873620, error=13, fmt=0x538eb2 "%s: handle-open: open")
    at ../src/support/err.c:320
#8  0x0000000000440534 in __posix_handle_open (session=0x4873620, fh=0x7d7c40,
    name=0x7ec5a0 "WT_RD.RD/WiredTiger.lock", file_type=16, flags=1) at ../src/os_posix/os_fs.c:625
#9  0x000000000043d912 in __wt_open (session=0x4873620, name=0x5329ba "WiredTiger.lock", file_type=16,
    flags=1, fhp=0x4873d58) at ../src/os_common/os_fhandle.c:203
#10 0x0000000000409194 in __conn_single (session=0x4873620, cfg=0x7fffffffcb50)
    at ../src/conn/conn_api.c:1493
#11 0x000000000040a111 in wiredtiger_open (home=0x77b860 <home_rd> "WT_RD.RD", event_handler=0x0,
    config=0x53235d "readonly=true", wt_connp=0x7fffffffdf58) at ../src/conn/conn_api.c:2010
#12 0x000000000040341b in main (argc=0, argv=0x7fffffffe100) at ../../../test/readonly/readonly.c:323