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IDS Forum

Assert Failed iserr = 124

Posted By: PRABAL DAS
Date: Tuesday, 13 October 2009, at 6:11 a.m.

Hi All,

Our IDS v7.31 ud8, which is a HDR secondary pair failed suddenly and was
found in a hung state. I had to recycle the engine to bring it up and now its running fine.
This has occured second time within last 2 months.

But I could not analyse the reason from af** files. onstat -l, onstat -d , onstat -g sql etc does not give a proper reason why it was hung.

Does the first 'who' from the log indicates(?) that its a daemon thread. How can I analyse it further ?
We donot have tech support.

Can any one help?

online.log

18:50:10 Rollforward of log record failed. iserrno = 124
18:50:10 Log Record: log = 78546, pos = d1c1558, type = OLDRSAM:ADDITEM(28), trans = 149
18:50:10 Log Record: log = 78546, pos = d1bf0f4, type = OLDRSAM:DELITEM(29), trans = 990
18:50:10 Assert Failed: No Exception Handler
18:50:10 IBM Informix Dynamic Server Version 7.31.UD8

18:50:10 Who: Session(113, informix@abc, 0, 1129401080)

Thread(255, xchg_1.4, 434eeb54, 13)

File: mtex.c Line: 471
18:50:10 IBM Informix Dynamic Server Version 7.31.UD8
18:50:10 Results: Exception Caught. Type: MT_EX_OS, Context: mem
18:50:10 Exception Recursion while handling: MT_EX_NONE, Context:
18:50:10 Assert Failed: No Exception Handler
18:50:10 Assert Failed: No Exception Handler
18:50:10 IBM Informix Dynamic Server Version 7.31.UD8
18:50:10 Action: Action: %s
18:50:10 Who: Session(113, informix@abc, 0, 1192724196)

Thread(265, xchg_1.14, 434f1d7c, 8)

File: mtex.c Line: 471
18:50:10 Assert Failed: Memory free block header corruption detected in mt_shm_malloc_segid 1
18:50:10 Assert Failed: No Exception Handler
18:50:10 Results: Exception Caught. Type: MT_EX_OS, Context: mem
18:50:10 IBM Informix Dynamic Server Version 7.31.UD8
18:50:10 IBM Informix Dynamic Server Version 7.31.UD8
18:50:10 Action:
18:50:10 Who: Session(4628044, gtsrep@devrep.sd.avaya.com, 6540, 1129431704)

Thread(4628093, sqlexec, 434f3b94, 1)

File: mtex.c Line: 471
18:50:10 Results: Exception Caught. Type: MT_EX_OS, Context: ill
18:50:10 IBM Informix Dynamic Server Version 7.31.UD8
18:50:10 Who: Session(113, informix@abc, 0, 1129401080)

Thread(260, xchg_1.9, 434f0468, 7)

File: mtex.c Line: 471
18:50:10 Results: Exception Caught. Type: MT_EX_OS, Context: mem
18:50:10 Action: Action: %s
18:50:11 Who: Session(113, informix@abc, 0, 1192724892)

Thread(256, xchg_1.5, 434ef058, 9)

File: mtshpool.c Line: 3006
18:50:11 Results: Unable to repair pool
18:50:11 Action: Please notify IBM Informix Technical Support.
18:50:11 invoke_alarm(): ALRMMALLOC failed: ALRMMALLOC(158)==0
18:50:11 listener-thread: err = -406: oserr = 62: errstr = : Memory allocation failed.
18:50:20 See Also: /analysis/dump/af.4e8cec2
18:55:12 VP Notify mechanism incomplete after 5 minutes. This can be due to slow network file access. Will try 12 more times
1

Abbreviated output from AF* files

onstat -u

434ec838 ---P-R-*113 informix - 0 0 0 139 29151880
434ecd3c -----R-*113 informix - 0 0 0 0 0
434ed240 Y----RD*113 informix - 436a0a38 0 0 0 0
434ed744 -----RD*113 informix - 0 0 0 2393713 1508199
434edc48 Y----RD*113 informix - 436a1068 0 0 736291 715176
434ee14c Y----RD*113 informix - 436a1020 0 0 616100 673728
434ee650 Y----RD*113 informix - 436a0fd8 0 0 2079713 1557963

/usr/informix_7.31.ud8/bin/onstat -g ses 113:
*** WARNING: IBM Informix Dynamic Server is no longer running. ***

*** WARNING: IBM Informix Dynamic Server is no longer running. ***

IBM Informix Dynamic Server Version 7.31.UD8 -- Read-Only (Sec) -- Up 22 days 22:14:07 -- 2917680 Kbytes

session #RSAM total used
id user tty pid hostname threads memory memory

*** WARNING: IBM Informix Dynamic Server is no longer running. ***

/onstat -g sts:

255 40448 8306 20 4176 10 xchg_1.4
256 40448 11123 27 7080 17 xchg_1.5

onstat -g stk all

Stack for thread: 255 xchg_1.4
base: 0x4407c000
len: 40960

pc: 0x0042e358
tos: 0x44084fb0
state: running

vp: 13

0x0044e620 (oninit)afhandler(0x3, 0x6dddbc, 0x6ddbc0, 0x1, 0x4e7cec2, 0x1)
0x0044e094 (oninit)afcrash_interface(0x69adc0, 0x44085798, 0x6ce19c, 0x69add8, 0x1d7, 0x0)
0x004519c8 (oninit)mt_ex_throw_sig(0x65b400, 0x425c34dc, 0x0, 0x0, 0x0, 0x0)
0x00090d4c (oninit)afsig_segv(0x30303030, 0x30303020, 0x30303030, 0x32303230, 0x20202020, 0x20202020)
0x004474b8 (oninit)print_qhdr(0x0, 0x43b1e03c, 0xfffffffe, 0x7c, 0xfffffffe, 0x43b1e030)
0x003e8520 (oninit)rlogm_redo(0x6cf000, 0xfffffffe, 0xd1bf0f4, 0x132d2, 0x0, 0x43aba090)
0x00396ad4 (oninit)next_recvr(0x1d, 0x0, 0x68fd1c, 0x663534, 0x663524, 0x0)
0x004521e8 (oninit)prod_loop2(0x44085ec8, 0x436a0ac8, 0x4, 0x396704, 0x1, 0x440d3f38)
0x0045257c (oninit)producer_thread(0x6cf000, 0x61c188, 0xfffffffc, 0x43adde38, 0x43ad1890, 0x0)
0x004302d0 (oninit)startup (0x6dddbc, 0x7, 0x0, 0x42010960, 0x0, 0x42010920)
0x0042a124 (oninit)mt_poll_yield(0x0, 0x0, 0x0, 0x0, 0x0, 0x0)
0x00000000 (***nosymtab***)0x0

Thanks

Prabal

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