Re: Use FD_CLOEXEC on ListenSockets (was Re: Refactoring backend fork+exec code)

On Fri, Oct 06, 2023 at 02:30:16PM +0900, Michael Paquier wrote:
> Okay, the backtrace is not that useful.  I'll see if I can get
> something better, still it seems like this has broken the way the
> syslogger closes these ports.

And here you go:
Program terminated with signal SIGSEGV, Segmentation fault.
#0  GetMemoryChunkMethodID (pointer=0x0) at mcxt.c:196 196 header =
*((const uint64 *) ((const char *) pointer - sizeof(uint64)));
(gdb) bt
#0  GetMemoryChunkMethodID (pointer=0x0) at mcxt.c:196
#1  0x0000557d04176d59 in pfree (pointer=0x0) at mcxt.c:1463
#2  0x0000557d03e8eab3 in ClosePostmasterPorts (am_syslogger=true) at postmaster.c:2571
#3  0x0000557d03e93ac2 in SysLogger_Start () at syslogger.c:686
#4  0x0000557d03e8c5b7 in PostmasterMain (argc=3, argv=0x557d0471ed00)
at postmaster.c:1148
#5  0x0000557d03d48e34 in main (argc=3, argv=0x557d0471ed00) at main.c:198
(gdb) up 2
#2  0x0000557d03e8eab3 in ClosePostmasterPorts (am_syslogger=true) at
postmaster.c:2571
2571 pfree(ListenSockets);
(gdb) p ListenSockets $1 = (pgsocket *) 0x0
--
Michael