[ofa-general] [Bug 662]

[Michael S. Tsirkin]

> Quoting Michael S. Tsirkin <mst at dev.mellanox.co.il>:
> Subject: bug 667
> 
> Sean, could you look at bug 667 please?
> rping seems to be crashing after connect error.

Here's a backtrace from the core dump.

# rping -c -d -a 11.4.3.174
ipaddr (11.4.3.174)
libibverbs: Warning: RLIMIT_MEMLOCK is 32768 bytes.
    This will severely limit memory registrations.
created cm_id 0x505f10
cma_event type 1 cma_id 0x505f10 (parent)
cma event 1, error -110
waiting for addr/route resolution state 1
Segmentation fault (core dumped)
# gdb `which rping`
GNU gdb 6.4
Copyright 2005 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type "show warranty" for details.
This GDB was configured as "x86_64-suse-linux"...Using host libthread_db library "/lib64/libthread_db.so.1".

(gdb) core core.29968
Core was generated by `rping -c -d -a 11.4.3.174'.
Program terminated with signal 11, Segmentation fault.
Reading symbols from /usr/local/ofed/lib64/librdmacm.so.1...done.
Loaded symbols for /usr/local/ofed/lib64/librdmacm.so.1
Reading symbols from /usr/local/ofed/lib64/libibverbs.so.1...done.
Loaded symbols for /usr/local/ofed/lib64/libibverbs.so.1
Reading symbols from /lib64/libpthread.so.0...done.
Loaded symbols for /lib64/libpthread.so.0
Reading symbols from /lib64/libdl.so.2...done.
Loaded symbols for /lib64/libdl.so.2
Reading symbols from /lib64/libc.so.6...done.
Loaded symbols for /lib64/libc.so.6
Reading symbols from /lib64/ld-linux-x86-64.so.2...done.
Loaded symbols for /lib64/ld-linux-x86-64.so.2
Reading symbols from /usr/local/ofed/lib64/libcxgb3-rdmav2.so...done.
Loaded symbols for /usr/local/ofed/lib64/libcxgb3-rdmav2.so
Reading symbols from /usr/local/ofed/lib64/libmthca-rdmav2.so...done.
Loaded symbols for /usr/local/ofed/lib64/libmthca-rdmav2.so
#0  __ibv_alloc_pd (context=0x0) at src/verbs.c:143
143             pd = context->ops.alloc_pd(context);
(gdb) where
#0  __ibv_alloc_pd (context=0x0) at src/verbs.c:143
#1  0x00000000004015e6 in rping_setup_qp (cb=0x505010, cm_id=0x505f10)
    at examples/rping.c:514
#2  0x000000000040270b in main (argc=5, argv=0x7fffe0117238) at examples/rping.c:936
(gdb) frame 1
#1  0x00000000004015e6 in rping_setup_qp (cb=0x505010, cm_id=0x505f10)
    at examples/rping.c:514
514             cb->pd = ibv_alloc_pd(cm_id->verbs);
(gdb) p cm_id->verbs
$1 = (struct ibv_context *) 0x0
(gdb) p (struct cma_id_private *)cm_id
$2 = (struct cma_id_private *) 0x505f10
(gdb) p *$2
$3 = {id = {verbs = 0x0, channel = 0x505ef0, context = 0x505010, qp = 0x0, route = {
      addr = {src_addr = {sa_family = 0, sa_data = '\0' <repeats 13 times>},
        src_pad = '\0' <repeats 111 times>, dst_addr = {sa_family = 2,
          sa_data = "\000\000\v\004\003�\000\000\000\000\000\000\000"},
        dst_pad = '\0' <repeats 111 times>, addr = {ibaddr = {sgid = {
              raw = '\0' <repeats 15 times>, global = {subnet_prefix = 0,
                interface_id = 0}}, dgid = {raw = '\0' <repeats 15 times>, global = {
                subnet_prefix = 0, interface_id = 0}}, pkey = 0}}}, path_rec = 0x0,
      num_paths = 0}, ps = RDMA_PS_TCP, port_num = 0 '\0'}, cma_dev = 0x0,
  events_completed = 0, connect_error = 0, cond = {__data = {__lock = 0, __futex = 0,
      __total_seq = 0, __wakeup_seq = 0, __woken_seq = 0, __mutex = 0x0, __nwaiters = 0,
      __broadcast_seq = 0}, __size = '\0' <repeats 47 times>, __align = 0}, mut = {
    __data = {__lock = 0, __count = 0, __owner = 0, __nusers = 0, __kind = 0,
      __spins = 0, __list = {__prev = 0x0, __next = 0x0}},
    __size = '\0' <repeats 39 times>, __align = 0}, handle = 0, mc_list = 0x0}
(gdb) where
#0  __ibv_alloc_pd (context=0x0) at src/verbs.c:143
#1  0x00000000004015e6 in rping_setup_qp (cb=0x505010, cm_id=0x505f10)
    at examples/rping.c:514
#2  0x000000000040270b in main (argc=5, argv=0x7fffe0117238) at examples/rping.c:936
(gdb)


-- 
MST