Re: Infinite loop in oprofiled

[<ns...@ac...>]

> This is a  fairly recent build from the JIT_SUPPORT CVS branch.  Anyone
> come across this problem before?  I guess we're stuck inside the while
> (index) loop inside odb_update_node...

Trapped it with a debug build, here's some of the loop control variables:

(gdb) l
57
58              data = odb->data;
59              index = data->hash_base[odb_do_hash(data, key)];
60              while (index) {
61                      node = &data->node_base[index];
62                      if (node->key == key) {
63                              if (node->value + 1 != 0) {
64                                      node->value += 1;
65                              } else {
66                                      /* post profile tools must handle
overflow */
(gdb) bt
#0  odb_update_node (odb=0x85c8d64, key=106180) at db_insert.c:62
#1  0x0804b8ac in sfile_log_sample (trans=0xbfff48a0) at opd_sfile.c:449
#2  0x0804c902 in opd_process_samples (buffer=0xb7f73008 "????\002",
count=44573) at opd_trans.c:124
#3  0x08049d55 in opd_26_start () at init.c:141
#4  0x0804a833 in main (argc=9, argv=0xbfff4ac4) at oprofiled.c:515
(gdb) p node
$70 = (odb_node_t *) 0x85cd458
(gdb) p /x *node
$71 = {key = 0x6c0000004c, value = 0xb7f6d000, next = 0x5}
(gdb) p data
$72 = (odb_data_t *) 0x85c6108
(gdb) p /x *data
$73 = {node_base = 0x85cd408, hash_base = 0xb7f6d86c, descr = 0xb7f6d04c,
hash_mask = 0x7f, sizeof_header = 0x4c,
  offset_node = 0x6c, base_memory = 0xb7f6d000, fd = 0x8, filename =
0x85d3650, ref_count = 0xffffffff, list = {next = 0x806a4e0,
    prev = 0x806a4e0}}
(gdb) p sizeof(index)
$74 = 4
(gdb) p /x *odb
$75 = {data = 0x85c6108}
(gdb) p /x key
$76 = 0x19ec4
(gdb) n
92                      index = node->next;
(gdb) n
61                      node = &data->node_base[index];
(gdb) p index
$77 = 5
(gdb) n
62                      if (node->key == key) {
(gdb) p node
$78 = (odb_node_t *) 0x85cd458
(gdb)


Let me know if there's anything else that'd be of value to track this down.

cheers.

--
Nathan