that maybe the reason, do you have the same problem if there is no such warning? 2016-11-19 19:00 GMT+08:00 xxhdx1985126 <xxhdx1985126@xxxxxxx>: > > Hi, everyone. > > > I'm trying to fix a problem in ceph using its core file and gdb. > gdb successfully loaded debug symbol from ceph-debuginfo: > > > Reading symbols from /usr/bin/ceph-osd...Reading symbols from /usr/lib/debug/usr/bin/ceph-osd.debug...done. > > > However, it still can't find the symbol table when I use "bt" to trace the stack: > > > #0 0x000000393da0f65b in ?? () > No symbol table info available. > #1 0x0000000000a51636 in install_standard_sighandlers () at global/signal_handler.cc:121 > No locals. > #2 0x00007fc7a77f9ed0 in ?? () > No symbol table info available. > #3 0x00007fc7a77f9e10 in ?? () > No symbol table info available. > #4 0x00007fc7a77f9b90 in ?? () > No symbol table info available. > #5 0x00007fc66d3142e0 in ?? () > No symbol table info available. > #6 0x00007fc7fac64100 in ?? () > No symbol table info available. > #7 0x0000003900000000 in ?? () > No symbol table info available. > #8 0x0000000000a51155 in SignalHandler::unregister_handler (this=0x1105440, signum=<value optimized out>, handler=<value optimized out>) at global/signal_handler.cc:317 > No locals. > #9 0x000000393eabcc33 in ?? () > No symbol table info available. > #10 0x000000393eabcd2e in ?? () > No symbol table info available. > > > Why is this happening? > > > PS: when gdb started running, it prompted the following warning: > > > BFD: Warning: /home/xuxuehan/online_problems.2016-11-19.7-01/core-ceph-osd-6-32337-32337-19906-1479510049 is truncated: expected core file size >= 8372899840, found: 7439335424 > > > Could this be the cause of gdb not finding the symbol table? -- Thank you! HuangJun -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html