RE: PostgreSQL and CVS DLL

["Norman Vine" <nhv at cape dot com>]

Christopher Faylor writes:
>>>>
>>>>On Wed, Jan 09, 2002 at 11:39:56AM -0500, Norman Vine wrote:
>>>>>
>>>>> postgres runs fine using snapshot DLL dated 20011231
>>>>> crashes for me with all DLL's dated 20020104 and later
>>>>>
>>>>> I have a locally built DLL 20020103 that also crashes
>>>>
>>>>Please try to determine what specific Cygwin change is causing the
>>>>postmaster problem.  Since the date range is small, searching
>>>>cygwin-cvs should not take too long.
>>>
>>>Where is the analysis of *where* the program died?  That should be
>>>pretty simple to show.  Look at how-to-debug-cygwin.txt for details.

>I am trying to reorient your (and everyone's) thinking.

:-)

>If you are not set up to do this or don't want to do this then send "it
>crashes" bug reports to cygwin@cygwin.com.

OK

Here is the backtrace of attempting the postgres regression test
with the todays Cygwin CVS files

HTH

Norman

(gdb) bt full
#0  strncpy (dst0=0xa01d712 "", src0=0x0, count=109)
    at /src/cygwin/src/newlib/libc/string/strncpy.c:116
        dst0 = 0xa01d712 ""
        count = 109
        dst = 0xa01d712 ""
        src = 0x0
        aligned_dst = (long int *) 0xa01d712
        aligned_src = (long int *) 0x22f924
#1  0x61033758 in cygwin_getsockname (fd=7, addr=0xa01d710,
namelen=0x22f924)
    at /src/cygwin/src/winsup/cygwin/net.cc:1380
        namelen = (int *) 0x22f924
        res = 0
        sock = (fhandler_socket *) 0xa01d712
#2  0x004bf0a6 in StreamConnection (server_fd=3, port=0xa01d5d0)
    at pqcomm.c:401
        addrlen = 112
#3  0x004f5a52 in ConnCreate (serverFd=3) at postmaster.c:1298
        port = (Port *) 0xa01d5d0
#4  0x004f4cda in ServerLoop () at postmaster.c:905
        port = (Port *) 0x0
        rmask = {fds_bits = {8, 0}}
        wmask = {fds_bits = {0, 0}}
        timeout = (struct timeval *) 0x0
        timeout_tv = {tv_sec = 0, tv_usec = 0}
        readmask = {fds_bits = {8, 0}}
        writemask = {fds_bits = {0, 0}}
        nSockets = 4
        curr = (Dlelem *) 0x10000000
        now = {tv_sec = 1010605539, tv_usec = 604000}
        later = {tv_sec = 1010605539, tv_usec = 614000}
        tz = {tz_minuteswest = 300, tz_dsttime = 1}
#5  0x004f410a in PostmasterMain (argc=4, argv=0x615665c0) at
postmaster.c:685
        opt = -1
        status = 0
        original_extraoptions =
"\000\000\000\000I+Fw\000\000\000\000\234¦\"\000
\0006\na\\tmp\a\000\001\000ck\\install\\usr\\bin\\postgres.exe\000\000\000#\
000F
f#\000\000\000\000\000\224·\"\000\210\006#\000Hv\"\000º\235vwP)°w    Xv\"\00
0¦¦n
w=·\"\000\000\000\000\0003)°w\000\000#\000HN#\000\000\000\000\000¦·\"\000\21
0\00
6#\000\200v\"\000º\235vwP)°w    @L\na˜n\"\000\034\000?\000\000\000\000\0008\
000\
000\000 \000\000\000 \000\000\000\214:\na\b \"\000\0006\na\200fFw    "...
        potential_DataDir = 0x61565d18
"/usr/src/postgresql-7.1.3/src/test/regre
ss/./tmp_check/data"
#6  0x004c058e in main (argc=4, argv=0x615665c0) at main.c:171
        len = 82
        pw = (struct passwd *) 0xd0
        pw_name_persist = 0x1 <Address 0x1 out of bounds>
#7  0x61003f6e in dll_crt0_1 () at
/src/cygwin/src/winsup/cygwin/dcrt0.cc:769
        cygwin_except_entry = {prev = 0x22ffe0,
---Type <return> to continue, or q <return> to quit---
  handler = 0x6100d938 <handle_exceptions>}
        envc = 1628042088
        envp = (char **) 0x4
#8  0x61004262 in _dll_crt0 () at /src/cygwin/src/winsup/cygwin/dcrt0.cc:863
        zeros = '\000' <repeats 15 times>
#9  0x610042a1 in dll_crt0 (uptr=0x0)
    at /src/cygwin/src/winsup/cygwin/dcrt0.cc:876
        uptr = (per_process *) 0x0
#10 0x0059b133 in cygwin_crt0 ()
    at /src/cygwin/src/winsup/cygwin/lib/cygwin_crt0.c:32
        f = 0x4c0424 <main>
        u = (struct per_process *) 0x0
(gdb)