Re: assert failed:condition failed (Bad pool pointer 0xc0000000393b6028), In

Hello, This looks like memory corruption ... its very difficult to identify the problem just by looking at the error message (especially assert failure messages like this) ...Stack traces help in these type of problems. Also, would suggest you open up a case with Tech Support as that would allow us to do real detailed research on the problem ... HTH Thanx much, Rajib Sarkar Advisory Support Engineer IBM Data Management Solutions Ph: 602-217-2100 As long as you derive inner help and comfort from anything, keep it -- Mahatma Gandhi Friday, May 30, 2003 12:52 PM To: informix-list@iiug.org cc: From: janto@luzdelsur.com.pe Subject: Re: assert failed:condition failed (Bad pool pointer 0xc0000000393b6028), In (mt_shm_malloc) Hi Murray, I did't kill a process with (kill pid) I kill the sesion with (onmode -z sesid), but I need know What is the problem ? Why is assert failed:condition failed (Bad pool pointer 0xc0000000393b6028), In (mt_shm_malloc)? I'm working with multiple residency in two servers (two instances by server), but only in one instance I have this problem, Now a have similar problems twice, 10:54:02 Assert Failed: No Exception Handler 10:54:02 Informix Dynamic Server Version 7.31.FD3W1 10:54:02 Who: Session(18386, sisteca@luz001, 15923, 577166384) Thread(23999, sqlexec, c00000003f085728, 4) File: mtex.c Line: 454 10:54:02 Results: Exception Caught. Type: MT_EX_OS, Context: mem 10:54:02 Action: Please notify Informix Technical Support. 10:54:02 stack trace for pid 131 written to /tmp/af.61a78a19 10:54:40 Assert Failed: Memory free block header corruption detected in mt_shm_malloc_segid 1 10:54:40 Informix Dynamic Server Version 7.31.FD3W1 10:54:40 Who: Session(21917, sisteca@luz001, 22385, 1049582264) Thread(28256, sqlexec, c00000003ce17ec0, 5) File: mtshpool.c Line: 2996 10:54:40 Results: Unable to repair pool 10:54:40 Action: Please notify Informix Technical Support. 10:54:40 stack trace for pid 132 written to /tmp/af.72488a40 10:55:18 create_tcb: cannot allocate memory 10:54:02 Assert Failed: No Exception Handler 10:54:02 Informix Dynamic Server Version 7.31.FD3W1 10:54:02 Who: Session(18386, sisteca@luz001, 15923, 577166384) Thread(23999, sqlexec, c00000003f085728, 4) File: mtex.c Line: 454 10:54:02 Results: Exception Caught. Type: MT_EX_OS, Context: mem 10:54:02 Action: Please notify Informix Technical Support. 10:54:02 stack trace for pid 131 written to /tmp/af.61a78a19 10:54:40 Assert Failed: Memory free block header corruption detected in mt_shm_malloc_segid 1 10:54:40 Informix Dynamic Server Version 7.31.FD3W1 10:54:40 Who: Session(21917, sisteca@luz001, 22385, 1049582264) Thread(28256, sqlexec, c00000003ce17ec0, 5) File: mtshpool.c Line: 2996 10:54:40 Results: Unable to repair pool 10:54:40 Action: Please notify Informix Technical Support. 10:54:40 stack trace for pid 132 written to /tmp/af.72488a40 10:55:18 create_tcb: cannot allocate memory After this, 11:09:22 Assert Failed: No Exception Handler 11:09:22 Informix Dynamic Server Version 7.31.FD3W1 11:09:22 Who: Session(5, informix@, 0, 0) Thread(13, soctcppoll, 0, 16) File: mtex.c Line: 454 11:09:22 Results: Exception Caught. Type: MT_EX_OS, Context: mem 11:09:22 Action: Please notify Informix Technical Support. 11:09:22 stack trace for pid 198 written to /tmp/af.3f58db1 11:19:23 See Also: /tmp/af.3f58db1 11:19:23 See Also: /tmp/af.71798abc 11:19:23 mtex.c, line 454, thread 13, proc id 198, No Exception Handler. 11:19:23 See Also: /tmp/af.72488a40 11:19:23 PANIC: Attempting to bring system down Finally, 12:38:01 Assert Failed: No Exception Handler 12:38:01 Informix Dynamic Server Version 7.31.FD3W1 12:38:01 Who: Session(127, sisteca@luz001, 27565, 456426008) Thread(311, sqlexec, c00000001b1477a0, 1) File: mtex.c Line: 454 12:38:01 Results: Exception Caught. Type: MT_EX_OS, Context: mem 12:38:01 Action: Please notify Informix Technical Support. 12:38:01 stack trace for pid 939 written to /tmp/af.51fa279 12:38:10 See Also: /tmp/af.51fa279 12:38:10 mtex.c, line 454, thread 311, proc id 939, No Exception Handler. 12:38:10 PANIC: Attempting to bring system down There are diferents errors only in the same instance, but I dont't understand why? What is the reason? and, What is the solution ? "Murray Wood" <murray@quanta.co.nz> wrote in message news:<ba13dd$k7q$1@terabinaries.xmission.com>... > If you kill a process that is in critical section, then you have killed the > engine. I tell my users never to kill programs. You need to understand > what is happening before contemplating this action. > > MW > > > -----Original Message----- > > From: owner-informix-list@iiug.org > > [mailto:owner-informix-list@iiug.org]On Behalf Of > > janto@luzdelsur.com.pe > > Sent: Friday, 16 May 2003 7:55 a.m. > > To: informix-list@iiug.org > > Subject: assert failed:condition failed (Bad pool pointer > > 0xc0000000393b6028), In (mt_shm_malloc) > > > > > > I don't understand this problem. > > When I killed tha session 73755 the sistem down. > > But the session 73755 is a program ESQL than run all the time each 5 > > minutes, and rarely I had this problem. > > The session 74661 is a simple select query > > > > 8:11:38 Assert Failed: Condition Failed (Bad pool pointer > > 0xc0000000393b6028), In (mt_shm_malloc) > > 08:11:38 Informix Dynamic Server Version 7.31.FD3W1 > > 08:11:38 Who: Session(74661, sisteca@luz001, 21846, 891564248) > > Thread(135333, sqlexec, c000000034fa2af8, 3) > > File: mtshpool.c Line: 2702 > > 08:11:38 Action: Please notify Informix Technical Support. > > 08:11:38 stack trace for pid 13475 written to /tmp/af.148d9209 > > > > 08:11:38 Assert Failed: No Exception Handler > > 08:11:38 Informix Dynamic Server Version 7.31.FD3W1 > > 08:11:38 Who: Session(73755, luz@linluz001, 12028, 970342680) > > Thread(134325, sqlexec, c000000034fb1cb0, 1) > > File: mtex.c Line: 454 > > 08:11:38 Results: Exception Caught. Type: MT_EX_OS, Context: mem > > 08:11:38 Action: Please notify Informix Technical Support. > > 08:11:38 stack trace for pid 13472 written to /tmp/af.109d9209 > > 08:11:45 See Also: /tmp/af.109d9209 > > 08:11:45 mtex.c, line 454, thread 134325, proc id 13472, No Exception > > Handler. > > 08:11:45 PANIC: Attempting to bring system down> > > > > > I'm using informix 7.31FD3W1