|
Problem IT03769
|
Status: Closed |
FAST CACHE PROBLEM WHEN DROPPING TABLE OR DATABASE CAN ASSERT CRASH WITH BAD BLOCK HEADER MT_SHM_FREE 1 |
| product: |
INFORMIX SERVER / 5725A3900 / B70 - IDS 11.70 |
| Problem description: |
Environment 1 : 12.10.FC2WE on Linux x86_64
18:12:45 Found during mt_shm_free 1
18:12:45 Pool 'rsam' (0x46d13040)
18:12:45 Bad block header 0x4a3824f0
blk-64
000000004a3824b0: 00000000 00000000 00000000 00000000 ........
........
000000004a3824c0: 00000000 00000000 00000000 00000000 ........
........
000000004a3824d0: 00000000 00000000 00000000 00000000 ........
........
000000004a3824e0: 00000000 00000000 00000000 00000000 ........
........
blk+64
000000004a3824f0: 415a7094 00000000 14005900 0000ab0d AZp.....
..Y.....
000000004a382500: df120000 65948e7d c43e2700 05000000 ....e..}
.>'.....
000000004a382510: f0dd34ca 00000000 df120000 65948e7d ..4.....
....e..}
000000004a382520: c43e2700 05000000 f0dd34ca 00000000 .>'.....
..4.....
(oninit) afstack
(oninit) mt_ex_throw_sig
(oninit) afsig_handler
(Linux) <signal frame>
(oninit) recover_pool_bad_block
(oninit) mt_free
(oninit) partpfree
(oninit) ptsetdeadx
(oninit) ptdropdone
(oninit) ptdrop
(oninit) killpn
(oninit) rscommit
(oninit) sqiscommit
(oninit) dbdropren
(oninit) aud_dbdrop
(oninit) find_db
(oninit) sqdropdb
(oninit) excommand
(oninit) sq_execute
(oninit) sqmain
Environment 1 : 12.10.FC1X8 on Linux x86_64
18:06:46 Found during mt_shm_free 1
18:06:46 Pool 'rsam' (0x37f5ea040)
18:06:46 Bad block header 0x38e05cb50
blk-64
000000038e05cb10: 00000000 00000000 00000000 00000000 ........
........
000000038e05cb20: 00000000 00000000 00000000 00000000 ........
........
000000038e05cb30: 00000000 00000000 00000000 00000000 ........
........
000000038e05cb40: 00000000 00000000 00000000 00000000 ........
........
blk+64
000000038e05cb50: 39900b1c 07000000 14005900 0000970d 9.......
..Y..... l
000000038e05cb60: 1b3f0000 2f41e737 07ca0a00 2c000000 .?../A.7
....,...
000000038e05cb70: a8a77c8a 00000000 1b3f0000 2f41e737 ..|.....
.?../A.7
000000038e05cb80: 07ca0a00 2c000000 48d03199 00000000 ....,...
H.1.....
In both examples, the last 24 bytes of the block header have
been overwritten with the first 24 bytes of data |
| Problem Summary: |
****************************************************************
* USERS AFFECTED: *
* Any *
****************************************************************
* PROBLEM DESCRIPTION: *
* See Error Description *
* When memory corruption is detected adjacent to memory blocks *
* being freed, the failure to take a corrective action causes *
* corruption of the block being freed. *
****************************************************************
* RECOMMENDATION: *
* Update to IBM Informix Server 12.10.xC5 *
**************************************************************** |
| Local Fix: |
|
| Solution |
Problem Fixed In IBM Informix Server 12.10.xC5 |
| Workaround |
not known / see Local fix |
| Timestamps |
Date - problem reported :
Date - problem closed :
Date - last modified :
| 13.08.2014
16.10.2015
16.10.2015 |
| Problem solved at the following versions (IBM BugInfos) |
12.10.xC5
|
| Problem solved according to the fixlist(s) of the following version(s) |
| 12.10.xC5
|
 |
| 12.10.xC5.W1
|
|
