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?��.n��������+%������w��{.n����z��u���ܨ}���Ơz�j:+v�����w����ޙ��&�)ߡ�a����z�ޗ���ݢj��w�f
