Re: [HACKERS] [PERFORM] rapid degradation after postmaster restart

[Joe Conway]

[moving to hackers]

Matthew T. O'Connor wrote:
Good luck, I hope you can get permission.  Would e nice to fix this 
little crash.
I went ahead and recompiled with --enable-debug, and get this trace:

#0  0xfefb3218 in strlen () from /usr/lib/libc.so.1
#1  0xff006520 in _doprnt () from /usr/lib/libc.so.1
#2  0xff0082e8 in sprintf () from /usr/lib/libc.so.1
#3  0x1213c in print_db_info (dbi=0x28980, print_tbl_list=0)
    at pg_autovacuum.c:681
#4  0x120fc in print_db_list (db_list=0x25f80, print_table_lists=0)
    at pg_autovacuum.c:673
#5  0x11b44 in init_db_list () at pg_autovacuum.c:416
#6  0x12c58 in main (argc=154384, argv=0xff043a54) at pg_autovacuum.c:1007
Line 681 is this:
  sprintf(logbuffer, "dbname: %s Username %s Passwd %s",
                      dbi->dbname, dbi->username, dbi->password);
It appears that dbi->password is a null pointer:
(gdb) print dbi->dbname
$1 = 0x25f68 "template1"
(gdb) print dbi->username
$2 = 0x25b20 "dba"
(gdb) print dbi->password
$3 = 0x0
Problem is, since this is a development machine, they have everything 
set to "trust" in pg_hba.conf. I added a "-P foo" to the command line, 
and it starts up fine now.

HTH,

Joe

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