[pgpool-general: 95] PGPool 3.0.5 General protection fault

James Elsdon jamesys at gmail.com
Fri Dec 16 07:59:56 JST 2011


Hello,
Firstly thanks for pgpool.

PGPool (confirmed in 3.0.3 and 3.0.5, did not use 3.0.4) will produce the
following behaviour

pgpool[22132] general protection rip:41668d rsp:7fffb04a0d90 error:0


Core dump details below:

#0  0x000000000041668d in is_sequence_query (node=0x5ff438) at
pool_process_query.c:1528
#1  0x00000000004442fe in pool_where_to_send (query_context=0x602a70,
    query=0x5fddb8 "SELECT aaaaaaa, pppppppp, cccc, rrrrrrr, aaaaaa,
cccccccc, fffffffff, sssssss, ddd, gggggg, ppppp, mmmmmm FROM aaaaaaa_ccccc
WHERE aaaaaaa=$1", node=0x5ff438) at pool_query_context.c:447
447                     if (is_select_query(node, query) &&
!is_sequence_query(node))
#2  0x0000000000440b15 in Parse (frontend=0x5f3070, backend=0x5f2040,
len=149, contents=0x610210 "") at pool_proto_modules.c:702
702                     pool_where_to_send(query_context,
query_context->original_query,
#3  0x0000000000441d50 in ProcessFrontendResponse (frontend=0x5f3070,
backend=0x5f2040) at pool_proto_modules.c:2007
2007                            status = Parse(frontend, backend, len,
contents);
#4  0x00000000004163eb in pool_process_query (frontend=0x5f3070,
backend=0x5f2040, reset_request=0) at pool_process_query.c:344
344                                             status =
ProcessFrontendResponse(frontend, backend);
#5  0x00000000004094c2 in do_child (unix_fd=4, inet_fd=5) at child.c:328
328                             status = pool_process_query(frontend,
backend, 0);
#6  0x0000000000403f75 in fork_a_child (unix_fd=4, inet_fd=5, id=30) at
main.c:1033
1033                    do_child(unix_fd, inet_fd);
#7  0x00000000004068f5 in main (argc=<value optimized out>, argv=<value
optimized out>) at main.c:517
517                     process_info[i].pid = fork_a_child(unix_fd,
inet_fd, i);

Core was generated by `pgpool: sss sss 10.10.10.11(3766'.
Program terminated with signal 11, Segmentation fault.
#0  0x000000000041668d in is_sequence_query (node=0x5ff438) at
pool_process_query.c:1528
1528                    if (IsA(lfirst(lc), ResTarget))

(gdb) print lc->data.ptr_value
$5 = (void *) 0x73202c656d616e74
(gdb) print (int)lc->data.ptr_value
$6 = 1835101812
(gdb) print (ResTarget)lc->data.ptr_value
$7 = {type = 1835101812, name = 0x202c656d616e7275 <Address
0x202c656d616e7275 out of bounds>, indirection = 0x6e6567202c626f64, val =
0x6f6870202c726564, location = 539780462}

Host Details:

Linux PGPOOL01 2.6.16.60-0.21-smp #1 SMP Tue May 6 12:41:02 UTC 2008 x86_64
x86_64 x86_64 GNU/Linux

> gcc -v
Using built-in specs.
Target: x86_64-suse-linux
Configured with: ../configure --enable-threads=posix --prefix=/usr
--with-local-prefix=/usr/local --infodir=/usr/share/info
--mandir=/usr/share/man --libdir=/usr/lib64 --libexecdir=/usr/lib64
--enable-langux
Thread model: posix
gcc version 4.1.2 20070115 (SUSE Linux)
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